C3216X7R2A104K [TI]

LM5020 100V Current Mode PWM Controller; LM5020 100V电流模式PWM控制器
C3216X7R2A104K
型号: C3216X7R2A104K
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
描述:

LM5020 100V Current Mode PWM Controller
LM5020 100V电流模式PWM控制器

控制器
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LM5020  
www.ti.com  
SNVS275F MAY 2004REVISED APRIL 2006  
LM5020 100V Current Mode PWM Controller  
Check for Samples: LM5020  
1
FEATURES  
PACKAGES  
2
Internal Start-up Bias Regulator  
Error Amplifier  
VSSOP-10  
WSON-10 (4 mm x 4 mm)  
Precision Voltage Reference  
Programmable Softstart  
1A Peak Gate Driver  
DESCRIPTION  
The LM5020 high voltage pulse-width-modulation  
(PWM) controller contains all of the features needed  
to implement single ended primary power converter  
topologies. Output voltage regulation is based on  
current-mode control, which eases the design of loop  
compensation while providing inherent line feed-  
forward. The LM5020 includes a high-voltage start-up  
regulator that operates over a wide input range up to  
100V. The PWM controller is designed for high speed  
capability including an oscillator frequency range to  
1MHz and total propagation delays less than 100ns.  
Additional features include an error amplifier,  
precision reference, line under-voltage lockout, cycle-  
by-cycle current limit, slope compensation, softstart,  
oscillator synchronization capability and thermal  
shutdown. The controller is available in both VSSOP-  
10 and WSON-10 packages.  
Maximum Duty Cycle Limiting (80% for  
LM5020-1 or 50% for LM5020-2)  
Programmable Line Under Voltage Lockout  
(UVLO) with Adjustable Hysteresis  
Cycle-by-Cycle Over-Current Protection  
Slope Compensation (LM5020-1)  
Programmable Oscillator Frequency with  
Synchronization Capability  
Current Sense Leading Edge Blanking  
Thermal Shutdown Protection  
APPLICATIONS  
Telecommunication Power Converters  
Industrial Power Converters  
+42V Automotive Systems  
Typical Application Circuit  
V
IN  
VIN  
V
VCC  
OUT  
LM5020  
UVLO  
SS  
OUT  
CS  
RT SYNC  
/
FB  
GND  
COMP  
COMPENSATION  
Figure 1. Non-Isolated Flyback Converter  
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2006, Texas Instruments Incorporated  
LM5020  
SNVS275F MAY 2004REVISED APRIL 2006  
www.ti.com  
Connection Diagram  
Top View  
1
2
3
4
5
10  
SS  
VIN  
FB  
9
8
7
6
RT/SYNC  
CS  
COMP  
VCC  
UVLO  
GND  
OUT  
Figure 2. 10-Lead VSSOP, WSON  
PIN DESCRIPTIONS  
Pin  
1
Name  
VIN  
Description  
Application Information  
Source Input Voltage  
Feedback Signal  
Input to the start-up regulator. Input range is 13V to 100V.  
2
FB  
Inverting input of the internal error amplifier. The non-  
inverting input is internally connected to a 1.25V reference.  
3
4
COMP  
VCC  
The output of the error amplifier and input to the  
Pulse Width Modulator  
COMP pull-up is provided by an internal 5K resistor which  
may be used to bias an opto-coupler transistor.  
Output of the internal high voltage series pass  
regulator. Regulated output voltage is 7.7V  
If an auxiliary winding raises the voltage on this pin above  
the regulation set point, the internal series pass regulator  
will shut down, reducing the internal power dissipation.  
5
6
7
OUT  
GND  
Output of the PWM controller  
Ground return  
Gate driver output with a 1A peak current capability.  
UVLO  
Line Under-Voltage Shutdown  
An external resistor divider from the power converter  
source voltage sets the shutdown levels. The threshold at  
this pin is 1.25V. Hysteresis is set by a switched internal  
20µA current source.  
8
CS  
Current Sense input  
Current sense input for current mode control and over-  
current protection. Current limiting is accomplished using a  
dedicated current sense comparator. If the CS pin voltage  
exceeds 0.5V the OUT pin switches low for cycle-by-cycle  
current limiting. CS is held low for 50ns after OUT switches  
high to blank leading edge current spikes.  
9
RT / SYNC Oscillator timing resistor pin and synchronization  
input  
An external resistor connected from RT to GND sets the  
oscillator frequency. This pin also accepts synchronization  
pulses from an external clock.  
10  
SS  
Softstart Input  
An external capacitor and an internal 10µA current source  
set the soft-start ramp rate.  
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam  
during storage or handling to prevent electrostatic damage to the MOS gates.  
2
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SNVS275F MAY 2004REVISED APRIL 2006  
Absolute Maximum Ratings(1)(2)  
VIN to GND  
-0.3V to 100V  
-0.3V to 16V  
-0.3V to 5.5V  
-0.3V to 7V  
Internally Limited  
2kV  
VCC to GND  
RT to GND  
All other pins to GND  
Power Dissipation  
ESD Rating(3)  
Human Body Model  
Storage Temperature  
Junction Temperature  
-65°C to +150°C  
150°C  
(1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which  
operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics.  
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and  
specifications.  
(3) The human body model is a 100 pF capacitor discharged through a 1.5kresistor.  
Operating Ratings  
VIN Voltage  
13V to 90V  
8V to 15V  
External Voltage applied to VCC  
Operating Junction Temperature  
-40°C to +125°C  
Electrical Characteristics  
Specifications in standard type face are for TJ= +25°C and those in boldface type apply over the full operating junction  
temperature range. Unless otherwise specified: VIN = 48V, VCC = 10V, and RT = 31.6k.(1)  
Symbol  
Parameter  
Conditions  
Min  
Typ  
Max  
Units  
Startup Regulator  
VCCReg  
VCC Regulation  
VCC Current Limit  
VCC = Open  
See(2)  
7.4  
15  
7.7  
22  
8.0  
V
mA  
µA  
µA  
I-VIN  
Startup Regulator Leakage  
Shutdown Current  
VIN = 100V  
150  
250  
500  
350  
IIN  
VUVLO = 0V, VCC = open  
VCC Supply  
VCC UVLO (Rising)  
VccReg  
- 300mV  
VccReg -  
100mV  
V
VCC UVLO (Falling)  
Supply Current  
5.3  
6.0  
2
6.7  
3
V
ICC  
Cload = 0  
mA  
Error Amplifier  
GBW  
Gain Bandwidth  
DC Gain  
4
75  
MHz  
dB  
Reference Voltage  
COMP Sink Capability  
FB = COMP  
1.225  
5
1.25  
17  
1.275  
V
FB = 1.5V COMP= 1V  
mA  
UVLO Pin  
Shutdown Threshold  
1.225  
16  
1.25  
20  
1.275  
24  
V
Undervoltage Shutdown Hysteresis  
Current Source  
µA  
Current Limit  
ILIM Delay to Output  
CS step from 0 to 0.6V  
Time to onset of OUT  
Transition (90%)  
30  
ns  
Cycle by Cycle CS Threshold  
Voltage  
0.45  
0.5  
50  
0.55  
V
Leading Edge Blanking Time  
ns  
(1) Limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using  
Statistical Quality Control (SQC) methods. The limits are used to calculate National's Average Outgoing Quality Level (AOQL).  
(2) Device thermal limitations may limit usable range.  
Copyright © 2004–2006, Texas Instruments Incorporated  
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LM5020  
SNVS275F MAY 2004REVISED APRIL 2006  
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Electrical Characteristics (continued)  
Specifications in standard type face are for TJ= +25°C and those in boldface type apply over the full operating junction  
temperature range. Unless otherwise specified: VIN = 48V, VCC = 10V, and RT = 31.6k.(1)  
Symbol  
Parameter  
Conditions  
Min  
Typ  
Max  
55  
Units  
CS Sink Impedance (clocked)  
35  
Soft Start  
Softstart Current Source  
Softstart to COMP Offset  
7
10  
13  
µA  
V
0.35  
0.55  
0.75  
Oscillator  
Frequency1 (RT = 31.6k)  
Frequency2 (RT = 9.76k)  
Sync threshold  
See(3)  
See(3)  
175  
560  
2.4  
200  
630  
3.2  
225  
700  
3.8  
kHz  
kHz  
V
PWM Comparator  
Delay to Output  
COMP set to 2V,  
CS stepped 0 to 0.4V,  
Time to onset of OUT  
transition low  
25  
ns  
Min Duty Cycle  
COMP=0V  
0
%
%
%
Max Duty Cycle (-1 Device)  
Max Duty Cycle (-2 Device)  
COMP to PWM Comparator Gain  
COMP Open Circuit Voltage  
COMP Short Circuit Current  
75  
80  
50  
85  
0.33  
5.2  
1.1  
4.3  
0.6  
6.1  
1.5  
V
COMP=0V  
mA  
Slope Compensation  
Slope Comp Amplitude  
(LM5020-1 Device Only)  
Delta increase at PWM  
Comparator to CS  
80  
105  
130  
mV  
Output Section  
Output High Saturation  
Output Low Saturation  
Rise Time  
Iout = 50mA, VCC - VOUT  
IOUT = 100mA, VOUT  
Cload = 1nF  
0.25  
0.25  
18  
0.75  
0.75  
V
V
ns  
ns  
Fall Time  
Cload = 1nF  
15  
Thermal Shutdown  
Tsd Thermal Shutdown Temp.  
Thermal Shutdown Hysteresis  
165  
25  
°C  
°C  
(3) Specification applies to the oscillator frequency. The operational frequency of the LM5020-2 devices is divided by two.  
4
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Typical Performance Characteristics  
Unless otherwise specified: TJ = 25°C.  
VCC and VIN  
VCC  
vs  
ICC (VIN = 48V)  
vs  
VIN  
9
8
7
6
5
4
3
2
1
20  
18  
16  
14  
12  
10  
8
6
4
2
0
0
20  
0
5
10  
15  
20  
25  
10  
V
(V)  
IN  
ICC (mA)  
Figure 3.  
Figure 4.  
Oscillator Frequency  
vs  
Oscillator Frequency  
vs  
Temperature  
RT = 31.6k  
RT  
210  
205  
200  
195  
190  
1.00E+06  
1.00E+05  
1.00E+04  
1
10  
RT (kW)  
100  
-40  
10  
110  
60  
TEMPERATURE (oC)  
Figure 5.  
Figure 6.  
Soft Start Current  
vs  
Temperature  
Error Amp. Gain/Phase Plot  
13.0  
11.8  
10.6  
9.4  
50  
40  
225  
180  
135  
90  
30  
20  
10  
45  
0
0
-45  
-90  
-135  
-180  
-225  
-10  
-20  
-30  
-40  
-50  
8.2  
7.0  
-40  
100k  
1M  
10M  
10k  
110  
10  
60  
TEMPERATURE (oC)  
FREQUENCY (Hz)  
Figure 7.  
Figure 8.  
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Block Diagram  
7.7V SERIES  
REGULATOR  
VCC  
VIN  
5V  
1.25V  
REFERENCE  
ENABLE  
UVLO  
+
-
LOGIC  
1.25V  
UVLO  
HYSTERESIS  
CLK  
(20 mA)  
RT/SYNC  
OSC  
V
CC  
DRIVER  
SLOPECOMP  
OUT  
GND  
50 mA  
RAMP  
GENERATOR  
(LM5020-1 Only)  
Max Duty Limit  
LM5020-1 (80%)  
LM5020-2 (50%)  
S
R
Q
Q
0
5V  
COMP  
1.25V  
5k  
2R  
PWM  
+
-
FB  
LOGIC  
1.4V  
R
SS  
SS  
10 mA  
SS  
CS  
+
-
0.5V  
2k  
CLK + LEB  
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LM5020  
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SNVS275F MAY 2004REVISED APRIL 2006  
DETAILED OPERATING DESCRIPTION  
The LM5020 High Voltage PWM controller contains all of the features needed to implement single ended primary  
power converter topologies. The LM5020 includes a high-voltage startup regulator that operates over a wide  
input range to 100V. The PWM controller is designed for high speed capability including an oscillator frequency  
range to 1MHz and total propagation delays less than 100ns. Additional features include an error amplifier,  
precision reference, line under-voltage lockout, cycle-by-cycle current limit, slope compensation, softstart,  
oscillator sync capability and thermal shutdown. The functional block diagram of the LM5020 is shown in Figure  
1. The LM5020 is designed for current-mode control power converters, which require a single drive output, such  
as Flyback and Forward topologies. The LM5020 provides all of the advantages of current-mode control  
including line feed-forward, cycle-by-cycle current limiting and simplified loop compensation .  
High Voltage Start-Up Regulator  
The LM5020 contains an internal high voltage startup regulator, that allows the input pin (Vin) to be connected  
directly to line voltages as high as 100V. The regulator output is internally current limited to 15mA. When power  
is applied, the regulator is enabled and sources current into an external capacitor connected to the VCC pin. The  
recommended capacitance range for the Vcc regulator is 0.1µF to 100µF. When the voltage on the VCC pin  
reaches the regulation level of 7.7V, the controller output is enabled. The controller will remain enabled until VCC  
falls below 6V.  
In typical applications, a transformer auxiliary winding is connected through a diode to the VCC pin. This winding  
should raise the VCC voltage above 8V to shut off the internal startup regulator. Powering VCC from an auxiliary  
winding improves conversion efficiency while reducing the power dissipated in the controller. The external VCC  
capacitor must be selected such that the capacitor maintains the Vcc voltage greater than the VCC UVLO falling  
threshold (6V) during the initial start-up. During a fault condition when the converter auxiliary winding is inactive,  
external current draw on the VCC line should be limited such that the power dissipated in the start-up regulator  
does not exceed the maximum power dissipation capability of the controller.  
An external start-up or other bias rail can be used instead of the internal start-up regulator by connecting the VCC  
and the Vin pins together and feeding the external bias voltage (8-15V) to the two pins.  
Line Under Voltage Detector  
The LM5020 contains a line Under Voltage Lock Out (UVLO) circuit. An external set-point voltage divider from  
Vin to GND sets the operational range of the converter. The resistor divider must be designed such that the  
voltage at the UVLO pin is greater than 1.25V when Vin is in the desired operating range. If the under voltage  
threshold is not met, all functions of the controller are disabled and the controller remains in a low power standby  
state.  
UVLO hysteresis is accomplished with an internal 20µA current source that is switched on or off into the  
impedance of the set-point divider. When the UVLO threshold is exceeded, the current source is activated to  
instantly raise the voltage at the UVLO pin. When the UVLO pin voltage falls below the 1.25V threshold the  
current source is turned off, causing the voltage at the UVLO pin to fall. The UVLO pin can also be used to  
implement a remote enable / disable function. If an external transistor pulls the UVLO pin below the 1.25V  
threshold, the converter is disabled.  
Error Amplifier  
An internal high gain error amplifier is provided within the LM5020. The amplifier's non-inverting input is internally  
set to a fixed reference voltage of 1.25V. The inverting input is connected to the FB pin. In non-isolated  
applications, the power converter output is connected to the FB pin via voltage scaling resistors. Loop  
compensation components are connected between the COMP and FB pins. For most isolated applications the  
error amplifier function is implemented on the secondary side of the converter and the internal error amplifier is  
not used. The internal error amplifier is configured as an open drain output and can be disabled by connecting  
the FB pin to ground. An internal 5K pull-up resistor between a 5V reference and COMP can be used as the pull-  
up for an optocoupler in isolated applications.  
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Current Limit/Current Sense  
The LM5020 provides a cycle-by-cycle over current protection function. Current limit is accomplished by an  
internal current sense comparator. If the voltage at the current sense comparator input exceeds 0.5V, the output  
is immediately terminated. A small RC filter, located near the controller, is recommended to filter noise from the  
current sense signal. The CS input has an internal MOSFET which discharges the CS pin capacitance at the  
conclusion of every cycle. The discharge device remains on an additional 50ns after the beginning of the new  
cycle to attenuate the leading edge spike on the current sense signal.  
The LM5020 current sense and PWM comparators are very fast, and may respond to short duration noise  
pulses. Layout considerations are critical for the current sense filter and sense resistor. The capacitor associated  
with the CS filter must be located very close to the LM5020 and connected directly to the pins of the controller  
(CS and GND). If a current sense transformer is used, both leads of the transformer secondary should be routed  
to the sense resistor and the current sense filter network. A sense resistor located in the source of the primary  
power MOSFET may be used for current sensing, but a low inductance resistor is required. When designing with  
a current sense resistor all of the noise sensitive low power ground connections should be connected together  
local to the controller and a single connection should be made to the high current power ground (sense resistor  
ground point).  
Oscillator and Sync Capability  
A single external resistor connected between the RT and GND pins sets the LM5020 oscillator frequency.  
Internal to the LM5020-2 device (50% duty cycle limited option) is an oscillator divide by two circuit. This divide  
by two circuit creates an exact 50% duty cycle pulse which is used internally to create a precise 50% duty cycle  
limit function. Because of this, the internal oscillator actually operates at twice the frequency of the output (OUT).  
For the LM5020-1 device the oscillator frequency and the operational output frequency are the same. To set a  
desired output operational frequency (F), the RT resistor can be calculated from:  
LM5020-1:  
1
RT =  
F x 158 x 10-12  
(1)  
LM5020-2:  
1
RT =  
F x 316 x 10-12  
(2)  
The LM5020 can also be synchronized to an external clock. The external clock must have a higher frequency  
than the free running oscillator frequency set by the RT resistor. The clock signal should be capacitively coupled  
into the RT pin through a 100pF capacitor. A peak voltage level greater than 3.7 Volts at the RT pin is required  
for detection of the sync pulse. The sync pulse width should be set between 15 to 150ns by the external  
components. The RT resistor is always required, whether the oscillator is free running or externally synchronized.  
The voltage at the RT pin is internally regulated at 2 Volts. The RT resistor should be located very close to the  
device and connected directly to the pins of the controller (RT and GND).  
PWM Comparator / Slope Compensation  
The PWM comparator compares the current ramp signal with the loop error voltage derived from the error  
amplifier output. The error amplifier output voltage at the COMP pin is offset by 1.4V and then further attenuated  
by a 3:1 resistor divider. The PWM comparator polarity is such that 0 Volts on the COMP pin will result in a zero  
duty cycle at the controller output. For duty cycles greater than 50 percent, current mode control circuits are  
subject to sub-harmonic oscillation. By adding an additional fixed slope voltage ramp signal (slope compensation)  
to the current sense signal, this oscillation can be avoided. The LM5020-1 integrates this slope compensation by  
summing a current ramp generated by the oscillator with the current sense signal. Additional slope compensation  
may be added by increasing the source impedance of the current sense signal. Since the LM5020-2 is not  
capable of duty cycles greater than 50%, there is no slope compensation feature in this device.  
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Soft Start  
The softstart feature allows the power converter to gradually reach the initial steady state operating point, thereby  
reducing start-up stresses and current surges. At power on, after the VCC and the line undervoltage lockout  
thresholds are satisfied, an internal 10µA current source charges an external capacitor connected to the SS pin.  
The capacitor voltage will ramp up slowly and will limit the COMP pin voltage and the duty cycle of the output  
pulses.  
Gate Driver and Maximum Duty Cycle Limit  
The LM5020 provides an internal gate driver (OUT), which can source and sink a peak current of 1 Amp. The  
LM5020 is available in two duty cycle limit options. The maximum output duty cycle is typically 80% for the  
LM5020-1 option and precisely equal to 50% for the LM5020-2 option. The maximum duty cycle function for the  
LM5020-2 is accomplished with an internal toggle flip-flop which ensures an accurate duty cycle limit. The  
internal oscillator frequency of the LM5020-2 is therefore twice the operating frequency of the PWM controller  
(OUT pin).  
The 80% maximum duty cycle limit of the LM5020-1 is determined by the internal oscillator and varies more than  
the 50% limit of the LM5020-2. For the LM5020-1 the internal oscillator frequency and the operational frequency  
of the PWM controller are equal.  
Thermal Protection  
Internal thermal shutdown circuitry is provided to protect the integrated circuit in the event the maximum junction  
temperature is exceeded. This feature prevents catastrophic failures from accidental device overheating. When  
activated, typically at 165 degrees Celsius, the controller is forced into a low power standby state, disabling the  
output driver and the bias regulator. After the temperature is reduced (typical hysteresis = 25°C) the VCC  
regulator is enabled and a softstart sequence initiated.  
Typical Application Circuit: 36V - 75 VIN and 3.3V, 4.5A OUT  
J2  
+3.3V  
C12  
470 pF  
R10  
R13  
20  
C9  
0.1 mF  
2
T1  
V+  
J1  
30-75V IN  
1
D2  
10, 1W  
1
CMPD2838E  
C13  
C14  
C15  
GND  
OUT RTN  
100 mF 100 mF 270 mF  
D3  
GND  
2
MBRD835L  
GND  
GND  
GND  
GND  
R2  
61.9k  
R1  
10  
C1  
2.2 mF  
C2  
2.2 mF  
Z1  
GND  
GND  
1SMB5936B  
GND  
GND  
GND  
D1  
CMPD2838E  
C4  
0.1 mF  
C10  
4.7 mF  
Shutdown  
R3  
2.87k  
GND GND  
U1  
Q1  
Si7898DP  
C3  
0.01 mF  
R4  
1.00k  
R11  
2.43k  
1
7
4
VIN  
VCC  
GND  
GND  
UVLO  
5
OUT  
R12  
1.47k  
3
R7  
COMP  
8
2
6
CS  
FB  
SYNC  
9
RT/  
SYNC  
SS  
100  
R8  
0.47  
Input  
10  
C8  
R9  
0.47  
GND  
GND  
100 pF  
R5  
C11  
1000 pF  
R6  
12.4k  
LM5020  
15.0k  
C6  
220 pF  
C5  
GND  
GND  
GND  
0.01 mF  
C7  
3300 pF  
GND  
GND  
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Table 1. Bill Of Materials  
ITEM  
PART NUMBER  
DESCRIPTION  
VALUE  
2.2µF, 100V  
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
D
D
D
1
2
C4532X7R2A225M  
C4532X7R2A225M  
C2012X7R1H103K  
C3216X7R2A104K  
C2012X7R1H103K  
C2012C0G1H221J  
C2012C0G1H332J  
C2012C0G1H101J  
C2012X7R1H104K  
C3216X7R1C475K  
C2012C0G1H102J  
C2012C0G1H471J  
C4532X7S0G107M  
C4532X7S0G107M  
A700X277M0004AT  
CMPD2838E-NSA  
CMPD2838E-NSA  
MBRD835L  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, KEMET  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, CER, TDK  
CAPACITOR, ALUM ORGANIC, KEMET  
DIODE, SIGNAL, CENTRAL  
DIODE, SIGNAL, CENTRAL  
2.2µF, 100V  
0.01µF, 50V  
0.1µF, 100V  
0.01µF, 50V  
220pF, 50V  
3300pF, 50V  
100pF, 50V  
0.1µF, 50V  
4.7µF, 16V  
1000pF, 50V  
470p, 50V  
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
1
100µF, 4V  
100µF, 4V  
270µF, 4V  
2
3
DIODE, RECTIFIER, ON  
SEMICONDUCTOR  
J
J
1
2
MKDS 1/2-3.81  
MKDS 1/2-3.81  
TERM BLK, MINI, 2 POS, PHOENIX  
CONTACT  
TERM BLK, MINI, 2 POS, PHOENIX  
CONTACT  
Q
R
R
R
R
R
R
R
R
R
R
R
R
R
T
1
1
SI7898DP  
FET, SILICONIX  
RESISTOR  
150V, 85mΩ  
10  
CRCW120610R0F  
CRCW12066192F  
CRCW08052871F  
CRCW08051001F  
CRCW08051502F  
CRCW08051242F  
CRCW08051000F  
CRCW12060R47F  
CRCW12060R47F  
CRCW251210R0F  
CRCW08052431F  
CRCW08051471F  
CRCW080520R0F  
B0695-A COILCRAFT  
PA0751 PULSE  
2
RESISTOR  
61.9kΩ  
2.87kΩ  
1.00kΩ  
15.0kΩ  
12.4kΩ  
100  
3
RESISTOR  
4
RESISTOR  
5
RESISTOR  
6
RESISTOR  
7
RESISTOR  
8
RESISTOR  
0.47  
9
RESISTOR  
0.47  
10  
11  
12  
13  
1
RESISTOR  
10, 1W  
2.43K  
1.47K  
20  
RESISTOR  
RESISTOR  
RESISTOR  
TRANSFORMER, FLYBACK, EFD20 CORE  
T
1
TRANSFORMER, FLYBACK, EFD20 CORE ALTERNATE  
U
1
LM5020-2MM  
CONTROLLER, SINGLE OUT, PWM,  
NATIONAL  
Z
1
1SMB5936B  
DIODE, ZENER, SMB, 30V  
10  
Submit Documentation Feedback  
Copyright © 2004–2006, Texas Instruments Incorporated  
Product Folder Links: LM5020  
PACKAGE OPTION ADDENDUM  
www.ti.com  
11-Apr-2013  
PACKAGING INFORMATION  
Orderable Device  
Status Package Type Package Pins Package  
Eco Plan Lead/Ball Finish  
MSL Peak Temp  
Op Temp (°C)  
Top-Side Markings  
Samples  
Drawing  
Qty  
(1)  
(2)  
(3)  
(4)  
LM5020MM-1  
ACTIVE  
VSSOP  
VSSOP  
DGS  
10  
10  
1000  
TBD  
Call TI  
CU SN  
Call TI  
-40 to 125  
-40 to 125  
SBLB  
LM5020MM-1/NOPB  
ACTIVE  
DGS  
1000  
Green (RoHS  
& no Sb/Br)  
Level-1-260C-UNLIM  
SBLB  
LM5020MM-2  
ACTIVE  
ACTIVE  
VSSOP  
VSSOP  
DGS  
DGS  
10  
10  
1000  
1000  
TBD  
Call TI  
CU SN  
Call TI  
-40 to 125  
-40 to 125  
SBNB  
SBNB  
LM5020MM-2/NOPB  
Green (RoHS  
& no Sb/Br)  
Level-1-260C-UNLIM  
LM5020MMX-1  
ACTIVE  
ACTIVE  
VSSOP  
VSSOP  
DGS  
DGS  
10  
10  
3500  
3500  
TBD  
Call TI  
CU SN  
Call TI  
-40 to 125  
-40 to 125  
SBLB  
SBLB  
LM5020MMX-1/NOPB  
Green (RoHS  
& no Sb/Br)  
Level-1-260C-UNLIM  
LM5020MMX-2  
ACTIVE  
ACTIVE  
VSSOP  
VSSOP  
DGS  
DGS  
10  
10  
3500  
3500  
TBD  
Call TI  
CU SN  
Call TI  
-40 to 125  
-40 to 125  
SBNB  
SBNB  
LM5020MMX-2/NOPB  
Green (RoHS  
& no Sb/Br)  
Level-1-260C-UNLIM  
LM5020SD-1  
ACTIVE  
ACTIVE  
WSON  
WSON  
DPR  
DPR  
10  
10  
1000  
1000  
TBD  
Call TI  
SN  
Call TI  
-40 to 125  
-40 to 125  
5020-1  
5020-1  
LM5020SD-1/NOPB  
Green (RoHS  
& no Sb/Br)  
Level-1-260C-UNLIM  
LM5020SD-2/NOPB  
ACTIVE  
WSON  
DPR  
10  
1000  
Green (RoHS  
& no Sb/Br)  
SN  
Level-1-260C-UNLIM  
-40 to 125  
5020-2  
LM5020SDX-1  
ACTIVE  
ACTIVE  
WSON  
WSON  
DPR  
DPR  
10  
10  
4500  
4500  
TBD  
Call TI  
SN  
Call TI  
-40 to 125  
-40 to 125  
5020-1  
5020-1  
LM5020SDX-1/NOPB  
Green (RoHS  
& no Sb/Br)  
Level-1-260C-UNLIM  
LM5020SDX-2  
ACTIVE  
ACTIVE  
WSON  
WSON  
DPR  
DPR  
10  
10  
4500  
4500  
TBD  
Call TI  
SN  
Call TI  
-40 to 125  
-40 to 125  
5020-2  
5020-2  
LM5020SDX-2/NOPB  
Green (RoHS  
& no Sb/Br)  
Level-1-260C-UNLIM  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
11-Apr-2013  
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability  
information and additional product content details.  
TBD: The Pb-Free/Green conversion plan has not been defined.  
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that  
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.  
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between  
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.  
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight  
in homogeneous material)  
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.  
(4)  
Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a  
continuation of the previous line and the two combined represent the entire Top-Side Marking for that device.  
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information  
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and  
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.  
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.  
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.  
Addendum-Page 2  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
21-Mar-2013  
TAPE AND REEL INFORMATION  
*All dimensions are nominal  
Device  
Package Package Pins  
Type Drawing  
SPQ  
Reel  
Reel  
A0  
B0  
K0  
P1  
W
Pin1  
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant  
(mm) W1 (mm)  
LM5020MM-1  
LM5020MM-1/NOPB  
LM5020MM-2  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
WSON  
WSON  
WSON  
WSON  
WSON  
WSON  
WSON  
DGS  
DGS  
DGS  
DGS  
DGS  
DGS  
DGS  
DGS  
DPR  
DPR  
DPR  
DPR  
DPR  
DPR  
DPR  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
1000  
1000  
1000  
1000  
3500  
3500  
3500  
3500  
1000  
1000  
1000  
4500  
4500  
4500  
4500  
178.0  
178.0  
178.0  
178.0  
330.0  
330.0  
330.0  
330.0  
178.0  
178.0  
178.0  
330.0  
330.0  
330.0  
330.0  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
12.4  
5.3  
5.3  
5.3  
5.3  
5.3  
5.3  
5.3  
5.3  
4.3  
4.3  
4.3  
4.3  
4.3  
4.3  
4.3  
3.4  
3.4  
3.4  
3.4  
3.4  
3.4  
3.4  
3.4  
4.3  
4.3  
4.3  
4.3  
4.3  
4.3  
4.3  
1.4  
1.4  
1.4  
1.4  
1.4  
1.4  
1.4  
1.4  
1.3  
1.3  
1.3  
1.3  
1.3  
1.3  
1.3  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
8.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
12.0  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
Q1  
LM5020MM-2/NOPB  
LM5020MMX-1  
LM5020MMX-1/NOPB  
LM5020MMX-2  
LM5020MMX-2/NOPB  
LM5020SD-1  
LM5020SD-1/NOPB  
LM5020SD-2/NOPB  
LM5020SDX-1  
LM5020SDX-1/NOPB  
LM5020SDX-2  
LM5020SDX-2/NOPB  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
21-Mar-2013  
*All dimensions are nominal  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
LM5020MM-1  
LM5020MM-1/NOPB  
LM5020MM-2  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
VSSOP  
WSON  
WSON  
WSON  
WSON  
WSON  
WSON  
WSON  
DGS  
DGS  
DGS  
DGS  
DGS  
DGS  
DGS  
DGS  
DPR  
DPR  
DPR  
DPR  
DPR  
DPR  
DPR  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
1000  
1000  
1000  
1000  
3500  
3500  
3500  
3500  
1000  
1000  
1000  
4500  
4500  
4500  
4500  
203.0  
203.0  
203.0  
203.0  
367.0  
367.0  
367.0  
367.0  
203.0  
203.0  
203.0  
367.0  
367.0  
367.0  
367.0  
190.0  
190.0  
190.0  
190.0  
367.0  
367.0  
367.0  
367.0  
190.0  
190.0  
190.0  
367.0  
367.0  
367.0  
367.0  
41.0  
41.0  
41.0  
41.0  
35.0  
35.0  
35.0  
35.0  
41.0  
41.0  
41.0  
35.0  
35.0  
35.0  
35.0  
LM5020MM-2/NOPB  
LM5020MMX-1  
LM5020MMX-1/NOPB  
LM5020MMX-2  
LM5020MMX-2/NOPB  
LM5020SD-1  
LM5020SD-1/NOPB  
LM5020SD-2/NOPB  
LM5020SDX-1  
LM5020SDX-1/NOPB  
LM5020SDX-2  
LM5020SDX-2/NOPB  
Pack Materials-Page 2  
MECHANICAL DATA  
DPR0010A  
SDC10A (Rev A)  
www.ti.com  
IMPORTANT NOTICE  
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other  
changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest  
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complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale  
supplied at the time of order acknowledgment.  
TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms  
and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary  
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TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and  
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