MP62161DD-LF [MPS]
Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, 2 X 3 MM, ROHS COMPLIANT, MO-229VCED-2, QFN-8;型号: | MP62161DD-LF |
厂家: | MONOLITHIC POWER SYSTEMS |
描述: | Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, 2 X 3 MM, ROHS COMPLIANT, MO-229VCED-2, QFN-8 光电二极管 |
文件: | 总12页 (文件大小:393K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MP62160/MP62161
3.3V/5V, Single-Channel 2A
Current-Limited Power Distribution Switch
with Output Discharge
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MP62160/MP62161 Power Distribution Switch
features internal current limiting to prevent damage
to host devices due to faulty load conditions. The
MP62160/MP62161 operates from a 3.3V or 5V
nominal input voltage and includes an 85mΩ Power
MOSFET to handle up to 2A continuous load with a
2.8A typical current limit. The MP62160/MP62161
has built-in protection for both over current and
increased thermal stress. For over-current protection
(OCP), the device will limit the current by going into
a constant current mode.
•
•
•
•
•
•
•
•
•
•
•
•
•
2A Continuous Current
2.8A accurate Current Limit
Output Discharge Function
2.7V to 5.5V Supply Range
90uA Quiescent Current
85mΩ MOSFET
Thermal-Shutdown Protection
Under-Voltage Lockout
8ms FLAG Deglitch Time
No FLAG Glitch During Power Up
Reverse Current Blocking
Active High & Active Low Options
UL Recognized: E322138
When continuous output overload condition exceeds
power dissipation of the package, the thermal
protection will shut the part off. The device will
recover once the device temperature reduces to
approx 120°C.
APPLICATIONS
•
•
•
•
•
•
•
Smartphone and PDA
Portable GPS Device
Notebook PC
The MP62160/MP62161 involves
a
discharge
function that provides a resistive discharge path for
the external output capacitor when the part is
disabled.
Set-top-box
Telecom and Network Systems
PC Card Hot Swap
USB Power Distribution
The MP62160/MP62161 is available in QFN8E,
MSOP8E and SOIC8 packages.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
3.3V/5V Input
1
GND
MP62160_MP62161
6,7,8
To VBUS
OUT
2,3
IN
USB Ports
4
5
EN*
FLAG
SINGLE-CHANNEL
*: EN is ative high for MP62161
UL Recognized Component
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
1
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
ORDERING INFORMATION
Maximum
Continuous Circuit Current
Load Current
Typical Short-
Top
Marking
Part Number Enable Switch
Package
Temperature
@ TA=25C
MP62160DS
Active
SOIC8
62160DS
62160DD
QFN8E
(2mm x 3mm)
MP62160DD
Low
MP62160DH
Single
MP62161DS
MSOP8E
SOIC8
62160DH
62161DS
2A
2.8A
–40°C to +85°C
Active
QFN8E
(2mm x 3mm)
MP62161DD
High
62161DD
62161DH
MP62161DH
MSOP8E
* For Tape & Reel, add suffix –Z (eg. MP62160DH–Z). For RoHS Compliant Packaging, add suffix –LF
(eg. MP62160DH–L)
PACKAGE REFERENCE
TOP VIEW
TOP VIEW
TOP VIEW
GND
IN
1
2
3
4
8
7
6
5
OUT
OUT
OUT
FLAG
GND
IN
OUT
OUT
OUT
FLAG
1
2
3
4
8
7
6
5
GND
IN
1
2
3
4
8
7
6
5
OUT
OUT
OUT
FLAG
IN
IN
EN*
IN
EN*
EN*
EXPOSED PAD
ON BACKSIDE
CONNECT TO GND
EXPOSED PAD
ON BACKSIDE
CONNECT TO GND
MSOP8E
QFN8E (2mm x 3mm)
MP62160/MP62161
SOIC8
*: EN is active high for MP62161
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance (3)
MSOP8E.................................55...... 12... °C/W
QFN8E (2mm x 3mm) ............55...... 12... °C/W
SOIC8.....................................90...... 42... °C/W
θJA
θJC
IN .................................................-0.3V to +6.0V
EN, FLAG, OUT to GND..............-0.3V to +6.0V
Continuous Power Dissipation (TA = +25°C) (2)
MSOP8E.................................................... 2.3W
QFN8E (2mm x 3mm)................................ 2.3W
SOIC8........................................................ 1.4W
Junction Temperature...............................150°C
Lead Temperature ....................................260°C
Storage Temperature...............–65°C to +150°C
Operating Temperature..............–40°C to +85°C
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ(MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD(MAX)=(TJ(MAX)-
TA)/θJA. Exceeding the maximum allowable power dissipation
will cause excessive die temperature, and the regulator will go
into thermal shutdown. Internal thermal shutdown circuitry
protects the device from permanent damage.
3) Measured on JESD51-7, 4-layer PCB.
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
2
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
ELECTRICAL CHARACTERISTICS (4)
VIN=5V, TA=+25°C, unless otherwise noted.
Parameter
Condition
Min
Typ
Max
5.5
Units
V
IN Voltage Range
Supply Current
Shutdown Current
Off Switch Leakage
2.7
Device Active, IOUT=0
90
1
120
μA
Device Disable, VOUT=float, VIN=5.5V
Device Disable, VIN=5.5V
μA
1
μA
Current Limit
Trip Current
2.1
2.8
3.5
4
A
A
Current Ramp (slew rate≤100A/s) on
Output
3.1
Under-voltage Lockout
Rising Edge
1.95
2.65
V
mV
mΩ
V
Under-voltage Hysteresis
FET On Resistance
250
85
IOUT=100mA (-40°C≤ TA ≤85°C)
130
EN Input Logic High Voltage
EN Input Logic Low Voltage
FLAG Output Logic Low Voltage
2
0.8
0.4
V
ISINK=5mA
V
FLAG Output High Leakage
Current
VIN=VFLAG=5.5V
1
μA
Thermal Shutdown
140
20
°C
°C
Thermal Shutdown Hysteresis
VIN=5.5V, CL=1uF, RL=5ꢀ
VIN=2.7V, CL=1uF, RL=5ꢀ
VIN=5.5V, CL=1uF, RL=5ꢀ
VIN=2.7V, CL=1uF, RL=5ꢀ
CL=100μF, RL=5ꢀ
0.9
1.7
ms
ms
ms
ms
ms
ms
VOUT Rising Time, Tr (5)
VOUT Falling Time, Tf (6)
0.5
0.5
3
Turn On Time, Ton (7)
Turn Off Time, Toff (8)
CL=100μF, RL=5ꢀ
10
Discharge Resistance
FLAG Deglitch Time
EN Input Leakage
100
8
ꢀ
4
15
ms
μA
μA
-1
Reverse Leakage Current
OUT=5.5V, IN=GND
0.2
NOTE:
4) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
5) Measured from 10% to 90%.
6) Measured from 90% to 10%.
7) Measured from (50%) EN signal to (90%) output signal.
8) Measured from (50%) EN signal to (10%) output signal.
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
3
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
PIN FUNCTIONS
Pin #
SOIC8
Pin #
MSOP8E
Pin #
QFN8E
Name Description
GND Ground.
1
1
1
2, 3
2, 3
2, 3
IN
———
Input Voltage. Accepts 2.7V to 5.5V input.
4
4
4
Active Low: (MP62160), Active High: (MP62161)
EN
5
5
5
IN-to-OUT Over-current, active-low output flag. Open-Drain.
FLAG
6, 7, 8
6, 7, 8
6, 7, 8
OUT IN-to-OUT Power-Distribution Output (for all 3 output pins)
TYPICAL PERFORMANCE CHARACTERISTICS
TA = +25ºC, unless otherwise noted.
OUT
X
tf
tr
CL
RL
VO
(OUT
X
)
90%
10%
90%
10%
TEST CIRCUIT
50%
90%
50%
50%
50%
VI(ENX)
VI(ENX)
toff
t
on
ton
toff
90%
V
O
(OUT
X
)
VO(OUTX)
10%
10%
VOLTAGE WAVEFORMS
Figure 1—Test Circuit and Voltage Waveforms
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
4
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
TYPICAL PERFORMANCE CHARACTERISTICS
VIN =5V, VEN=0V for MP62160 or 5V for MP62161, CL=2.2uF, TA = +25ºC, unless otherwise noted.
Supply Current, Output Enabled
vs. Input Voltage
4
3.5
3
100
95
90
85
80
75
70
65
60
0.25
0.2
0.15
0.1
0.05
0
2.5
2
1.5
1
2.5
3
3.5
4
4.5
5
5.5
6
2.5
3
3.5
4
4.5
5
5.5
6
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Static Drain-Source On-State
Resistance Variation vs.
Ambient Temperature
IO=0.1A
Static Drain-Source On-State
Resistance vs. Input Voltage
IO=2A
Input to Output Voltage vs.
Load Current
30
25
20
15
10
5
350
300
250
200
150
100
50
170
160
150
140
130
120
110
100
90
Vin=2.7V
Vin=3.3V
Vin=5.5V
Vin=5V
0
-5
-10
-15
-20
-25
-30
Vin=4.5V
80
70
0
-45 -30 -15 0 15 30 45 60 75 90
2.5
3
3.5
4
4.5
5
5.5
6
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
INPUT VOLTAGE (V)
Current Limit
vs. Input Voltage
Current Limit Response Time
vs. Peak Current
Threshold Trip Current vs.
Input Voltage
3.2
3.4
3.2
3
30
25
20
15
10
5
3.1
3
2.9
2.8
2.7
2.8
2.6
2.4
2.6
2.5
0
2.5
3
3.5
4
4.5
5
5.5
6
2
5
8
11
14
17
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE (V)
PEAK CURRENT (A)
INPUT VOLTAGE (V)
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
5
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN =5V, VEN=0V for MP62160 or 5V for MP62161, CL=2.2uF, TA = +25ºC, unless otherwise noted.
VOUT
VOUT
VOUT
2V/div
2V/div
2V/div
EN
EN
EN
5V/div
5V/div
5V/div
Short Circuit Current,
Device Enabled into Short
Threshold Trip Current with
Ramped Load
on Enabled Device
VOUT
IOUT
VOUT
2V/div
1A/div
2V/div
EN
EN
IOUT
5V/div
5V/div
1A/div
1ms/div
Ramped Load
on Enabled Device
Flag
IOUT
Flag
5V/div
1A/div
5V/div
IOUT
EN
IOUT
1A/div
5V/div
2A/div
2ms/div
2ms/div
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
6
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
FUNCTION BLOCK DIAGRAM
+
--
UVLO
Vref
IN
OUT
Current
Sense
Charge
Pump
--
Logic
AMP
+
FLAG
EN*
Deglitch
Thermal
Sense
GND
*: EN is active high for MP62161; EN is active low for MP62160
Figure2—Functional Block Diagram
DETAILED DESCRIPTION
3) Output current has been gradually increased
beyond the recommended operating current.
The load current rises until the trip current
threshold is reached or until the thermal limit
Over Current
When the load exceeds trip current (minimum
threshold current triggering constant-current
mode) or a short is present, MP62160/MP62161
switches into to a constant-current mode (current
limit value). MP62160/MP62161 will be shutdown
only if the overcurrent condition stays long
enough to trigger thermal protection.
of
the
device
is
exceeded.
The
MP62160/MP62161 is capable of delivering
current up to the trip current threshold without
damaging the device. Once the trip threshold
has been reached, the device switches into
its constant-current mode.
Trigger overcurrent protection for different
overload conditions occurring in applications:
Flag Response
1) The output has been shorted or overloaded
before the device is enabled or input applied.
MP62160/MP62161 detects the short or
overload and immediately switches into a
constant-current mode.
The FLAG pin is an open drain configuration.
This FAULT will report a fail mode after an 8ms
deglitch timeout. This is used to ensure that no
false fault signals are reported. This internal
deglitch circuit eliminates the need for extend
components. The FLAG pin is not deglitched
during an over temp. or a voltage lockout.
2) A short or an overload occurs after the device
is enabled. After the current-limit circuit has
been tripped (reached the trip current
threshold), the device switches into constant-
current mode. However, high current may
flow for a short period of time before the
current-limit circuit can react.
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
7
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
Thermal Protection
The purpose of thermal protection is to prevent
damage in the IC by allowing exceptive current to
flow and heating the junction. The die
temperature is internally monitored until the
thermal limit is reached. Once this temperature is
reached, the switch will turn off and allow the
chip to cool. The switch has a built-in hysteresis.
Under-voltage Lockout (UVLO)
This circuit is used to monitor the input voltage to
ensure that the MP62160/MP62161 is operating
correctly.
This UVLO circuit also ensures that is no
operation until the input voltage reaches the
minimum spec.
Enable
The logic pin disables the switch to reduce
overall supply current .Once the EN pin reaches
logic enable threshold, the MP62160/MP62161 is
enabled.
Output Discharge
The part involves a discharge function that
provides a resistive discharge path for the
external output capacitor. The function will be
active when the part is disabled (Input voltage is
under UVLO or enable is deasserted) and it will
be done in a very limited time.
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
8
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
APPLICATION INFORMATION
Power-Supply Considerations
Over 10μF capacitor between IN and GND is
recommended. This precaution reduces power-
supply transients that may cause ringing on the
input and improves the immunity of the device to
short-circuit transients.
In order to achieve smaller output load transient
ripple, placing a high-value electrolytic capacitor
on the output pin(s) is recommended when the
load is heavy.
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
9
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
PACKAGE INFORMATION
MSOP8E (EXPOSED PAD)
0.087(2.20)
0.099(2.50)
0.114(2.90)
0.122(3.10)
5
8
0.187(4.75)
0.114(2.90)
0.122(3.10)
0.062(1.58)
0.074(1.88)
0.199(5.05)
PIN 1 ID
(NOTE 5)
Exposed Pad
4
1
0.010(0.25)
0.014(0.35)
0.0256(0.65)BSC
BOTTOM VIEW
TOP VIEW
GAUGE PLANE
0.010(0.25)
0.030(0.75)
0.037(0.95)
0.043(1.10)MAX
0.004(0.10)
0.008(0.20)
SEATING PLANE
0.002(0.05)
0.006(0.15)
0.016(0.40)
0.026(0.65)
0o-6o
FRONT VIEW
SIDE VIEW
NOTE:
0.100(2.54)
1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN BRACKET IS
IN MILLIMETERS.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH,
PROTRUSION OR GATE BURR.
0.075(1.90)
0.181(4.60)
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR
PROTRUSION.
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING)
SHALL BE 0.004" INCHES MAX.
5) PIN 1 IDENTIFICATION HAS HALF OR FULL CIRCLE OPTION.
6) DRAWING MEETS JEDEC MO-187, VARIATION AA-T.
7) DRAWING IS NOT TO SCALE.
0.040(1.00)
0.016(0.40)
0.0256(0.65)BSC
RECOMMENDED LAND PATTERN
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
10
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
QFN8E (2mm x 3mm)
PIN 1 ID
SEE DETAIL A
2.90
3.10
0.30
0.50
1.65
1.85
PIN 1 ID
MARKING
0.18
0.30
8
5
1
1.90
2.10
1.50
1.70
0.50
BSC
PIN 1 ID
INDEX AREA
4
TOP VIEW
BOTTOM VIEW
PIN 1 ID OPTION B
R0.20 TYP.
PIN 1 ID OPTION A
0.30x45”TYP.
0.80
1.00
0.20 REF
0.00
0.05
SIDE VIEW
DETAIL A
2.90
1.70
NOTE:
0.70
1) ALL DIMENSIONS ARE IN MILLIMETERS.
2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH.
3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX.
4) DRAWING CONFORMS TO JEDEC MO-229, VARIATION VCED-2.
5) DRAWING IS NOT TO SCALE.
0.25
0.50
1.60
RECOMMENDED LAND PATTERN
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
11
MP62160/MP62161 –CURRENT-LIMITED POWER DISTRIBUTION SWITCH
SOIC8
0.189(4.80)
0.197(5.00)
0.050(1.27)
0.024(0.61)
8
5
0.063(1.60)
0.150(3.80)
0.157(4.00)
0.228(5.80)
0.244(6.20)
0.213(5.40)
PIN 1 ID
1
4
TOP VIEW
RECOMMENDED LAND PATTERN
0.053(1.35)
0.069(1.75)
SEATING PLANE
0.004(0.10)
0.010(0.25)
0.0075(0.19)
0.0098(0.25)
0.013(0.33)
0.020(0.51)
SEE DETAIL "A"
0.050(1.27)
BSC
SIDE VIEW
FRONT VIEW
0.010(0.25)
0.020(0.50)
x 45o
NOTE:
1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN
BRACKET IS IN MILLIMETERS.
GAUGE PLANE
0.010(0.25) BSC
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS.
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH
OR PROTRUSIONS.
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING)
SHALL BE 0.004" INCHES MAX.
0.016(0.41)
0.050(1.27)
0o-8o
5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION AA.
6) DRAWING IS NOT TO SCALE.
DETAIL "A"
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MP62160_MP62161 Rev. 0.9
9/18/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
12
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