MP6232DH-Z [MPS]
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| 型号： | MP6232DH-Z |
| 厂家： | 
MONOLITHIC POWER SYSTEMS |
| 描述： | 暂无描述 电源电路 开关 电源管理电路 光电二极管 |
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MP6231/MP6232
3.3V/5V, Dual-Channel 500mA
Current-Limited Power Distribution Switches
The Future of Analog IC Technology
DESCRIPTION
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
500mA Continuous Current
Accurate Current Limit
2.7V to 5.5V Supply Range
140μA Quiescent Current
85mΩ MOSFET
The MP6231/MP6232 Power Distribution
Switch features internal current limiting to
prevent damage to host devices due to faulty
load conditions. The MP6231/MP6232 analog
switch has 85mΩ on-resistance and operates
from 2.7V to 5.5V input. It is available with
guaranteed current limits, making it ideal for
Thermal-Shutdown Protection
Under-Voltage Lockout
load
switching
applications.
The
8ms FLAG Deglitch Time
No FLAG Glitch During Power Up
Reverse Current Blocking
Active High & Active Low Options
UL File # E322138
MP6231/MP6232 has built-in protection for both
over current and increased thermal stress. For
over current, the device will limit the current by
changing to a constant current mode.
As the temperature increases as a result of
short circuit, then the device will shut off. The
device will recover once the device temperature
reduces to approx 120°C.
APPLICATIONS
•
•
•
•
•
•
•
Smartphone and PDA
Portable GPS Device
Notebook PC
The MP6231/MP6232 is available in 8-pin
MSOP, SOIC package with exposed pad and 8-
pin SOIC w/o exposed pad.
Set-top-box
Telecom and Network Systems
PC Card Hot Swap
USB Power Distribution
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
+5V
8
7
1
To USB Controller
Output 1
FLAG1
OUT1
GND
IN
2
MP6232
Output 2
3
4
6
5
EN1
OUT2
EN2
FLAG2
DUAL-CHANNEL
UL Recognized Component
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
1
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
ORDERING INFORMATION
Maximum
Typical Short-
Free Air
Temperature
(TA)
Top
Marking
Part Number
Enable Switch
Continuous Circuit Current Package
Load Current
@ TA=25C
MP6231DN*
MP6231DH
MP6231DS
MP6232DN
MP6232DH
MP6232DS
SOIC8E MP6231DN
Active
High
MSOP8E
SOIC8
6231D
Dual
0.5A
750mA
-40°C to +85°C
SOIC8E MP6232DN
Active
Low
MSOP8E
SOIC8
6232D
* For Tape & Reel, add suffix –Z (e.g. MP6231DN–Z).
For RoHS compliant packaging, add suffix –LF (e.g. MP6231DN–LF–Z)
PACKAGE REFERENCE
TOP VIEW
TOP VIEW
TOP VIEW
GND
IN
1
2
3
4
8
7
6
5
FLAG1
OUT1
OUT2
FLAG2
GND
1
FLAG1
OUT1
OUT2
FLAG2
8
7
6
5
GND
IN
1
2
3
4
8
7
6
5
FLAG1
OUT1
OUT2
FLAG2
IN
2
EN1*
3
EN1*
EN2*
EN1*
EN2*
EN2*
4
EXPOSED PAD
ON BACKSIDE
CONNECT TO GND
EXPOSED PAD
ON BACKSIDE
MSOP8E
SOIC8
SOIC8E
MP6231/MP6232Dual-Channel
(* EN is active high for MP6231)
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance (3)
SOIC8E ..................................50...... 10... °C/W
MSOP8E.................................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
(2)
Continuous Power Dissipation (TA = +25°C)
SOIC8E...................................................... 2.5W
MSOP8E.................................................. 2.27W
SOIC8........................................................ 1.4W
Junction Temperature...............................150°C
Lead Temperature ....................................260°C
Storage Temperature............... -65°C to +150°C
Operating Junct. Temp. ........... -40°C to +125°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.
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
2
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
ELECTRICAL CHARACTERISTICS (4)
VIN=5V, TA=+25°C, unless otherwise noted.
Parameter
Condition
Min
Typ
Max
Units
IN Voltage Range
2.7
5.5
V
One Channel Enabled, IOUT=0, One
Switch ON
Both Channels Enabled, IOUT=0, Both
Switches ON
Supply Current
Supply Current
90
120
160
μA
μA
140
Shutdown Current
Off Switch Leakage
Current Limit
Device Disable, VOUT=float, VIN=5.5V
Device Disable, VIN=5.5V
1
1
μA
μA
550
1100
1.6
mA
Current Ramp (slew rate≤100A/s) on
Output
Trip Current
1.2
A
Under-voltage Lockout
Rising Edge
1.95
2.65
V
mV
mΩ
V
Under-voltage Hysteresis
FET On Resistance
250
85
130
IOUT=100mA , and -40°C<TA<85°C
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
°C
Thermal Shutdown Hysteresis
20
0.9
1.7
°C
ms
ms
ms
ms
VIN=5.5V, CL=1μF, RL=11ꢀ
VIN=2.7V, CL=1μF, RL=11ꢀ
VIN=5.5V, CL=1μF, RL=11ꢀ
VIN=2.7V, CL=1μF, RL=11ꢀ
VOUT Rising Time, Tr
VOUT Falling Time, Tf
0.5
0.5
3
Turn On Time, Ton
Turn Off Time, Toff
FLAG Deglitch Time
ENx Input Leakage
Reverse Leakage Current
Notes:
CL=100μF, RL=11ꢀ
CL=100μF, RL=11ꢀ
ms
ms
ms
μA
μA
10
15
4
8
1
OUTX=5.5V, IN=GND
0.2
4) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
3
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
PIN FUNCTIONS
MP6231/MP6232
SOIC8
SOIC8E
MSOP8E
Name Description
GND Ground.
1
2
IN
Input Voltage. Accepts 2.7V to 5.5V input.
Active Low: (MP6232), Active High: (MP6231)
3
4
5
EN1
Active Low: (MP6232), Active High: (MP6231)
EN2
IN-to-OUT2 Over-current, active-low output flag. Open-Drain.
FLAG2
6
7
OUT2 IN-to-OUT2 Power-Distribution Switch Output.
OUT1 IN-to-OUT1 Power-Distribution Switch Output
8
IN-to-OUT1 Over-current, active-low output flag. Open-Drain.
FLAG1
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
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
4
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=5.5V, CL = 1µF, TA = +25ºC, unless otherwise noted.
Supply Current, Output Enabled
vs. Input Voltage
VEN=5V
1.2
1
4
3.5
3
120
100
80
60
40
20
0
0.8
0.6
0.4
0.2
0
2.5
2
1.5
1
0.5
0
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, VIN=5V
Static Drain-Source
On-State Resistance vs.
Input Voltage
Input to Output Voltage vs.
Load Current
VEN=5V
VEN=5V, IOUT=0.5A
30
25
20
15
10
5
90
140
130
120
110
100
90
Vin=2.7V
80
70
60
50
40
30
20
10
0
Vin=3.3V
Vin=4.5V
0
-5
Vin=5.5V
Vin=5V
-10
-15
-20
-25
-30
80
70
-45 -30 -15 0 15 30 45 60 75 90
2.5
3
3.5
4
4.5
5
5.5
6
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7
OUTPUT CURRENT (A)
AMBIENT TEMPERATURE (0C)
INPUT VOLTAGE (V)
Current Limit
vs. Input Voltage
VEN=5V
Threshold Trip Current vs.
Input Voltage
VEN=5V
Current Limit Response Time
vs. Peak Current
VEN=5V
1.5
1.4
1.3
1.2
1.1
1
45
0.9
40
35
30
25
20
15
10
5
0.85
0.8
0.75
0.7
0.65
0.9
0.6
0.8
0
2.5
3
3.5
4
4.5
5
5.5
6
2.5
3
3.5
4
4.5
5
5.5
6
0
2
4
6
8
10 12 14
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
PEAK CURRENT (A)
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
5
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=5.5V, CL = 1µF, TA = +25ºC, unless otherwise noted.
Turn On Delay
and Rise Time
with 0.1uF Load
VEN=5V, CL=0.1uF
Turn Off Delay
and Fall Time
with 0.1uF Load
VEN=5V, CL=0.1uF
V
OUT
V
V
OUT
OUT
2V/div
2V/div
2V/div
EN
5V/div
EN
5V/div
EN
5V/div
1s/div
Threshold Trip Current
with Ramped Load
on Enabled Device
VEN=5V, CL=1uF
Short Circuit Current
Device Enabled into Short
VEN=5V, CL=1uF
V
OUT
2V/div
V
OUT
2V/div
I
OUT
200mA/div
EN
5V/div
EN
5V/div
I
OUT
500mA/div
4ms/div
Ramped Load
on Enabled Device
VEN=5V, CL=1uF
Flag
5V/div
Flag
5V/div
I
OUT
200mA/div
I
OUT
500mA/div
EN
5V/div
I
OUT
1A/div
2ms/div
1ms/div
2ms/div
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
6
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
FUNCTION BLOCK DIAGRAM
Figure 2—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, MP6231/MP6232
switches into to a constant-current mode (current
limit value). MP6231/MP6232 will be shutdown
only if the overcurrent condition stays long
enough to trigger thermal protection.
of
the
device
is
exceeded.
The
MP6231/MP6232 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:
1) The output has been shorted or overloaded
before the device is enabled or input applied.
MP6231/MP6232 detects the short or
overload and immediately switches into a
constant-current mode.
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.
Flag Response
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.
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
7
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
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 temp. is
internally monitored until the thermal limit is
reached. Once this temp. 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 MP6231/MP6232 is operating
correctly. This UVLO circuit also ensures that
there is no operation until the input voltage
reaches the minimum spec.
Enable
The logic pin disables the chip to reduce the
supply current. The device will operate once the
enable signal reaches the appropriate level. The
input is compatible with both COMS and TTL.
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
8
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
APPLICATION INFORMATION
In order to achieve smaller output load transient,
placing a high-value electrolytic capacitor on the
output pin(s) is recommended when the output
load is heavy.
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.
+5V
8
1
2
To USB Controller
Output 1
FLAG1
OUT1
GND
IN
7
MP6232
Output 2
3
4
6
5
EN1
OUT2
EN2
FLAG2
DUAL-CHANNEL
Figure 3—Application Circuit
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
9
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
PACKAGE INFORMATION
SOIC8E
0.189(4.80)
0.197(5.00)
0.124(3.15)
0.136(3.45)
8
5
0.150(3.80)
0.157(4.00)
0.228(5.80)
0.244(6.20)
0.089(2.26)
0.101(2.56)
PIN 1 ID
1
4
TOP VIEW
BOTTOM VIEW
SEE DETAIL "A"
0.051(1.30)
0.067(1.70)
SEATING PLANE
0.000(0.00)
0.006(0.15)
0.0075(0.19)
0.0098(0.25)
0.013(0.33)
0.020(0.51)
SIDE VIEW
0.050(1.27)
BSC
FRONT VIEW
0.010(0.25)
0.020(0.50)
x 45o
GAUGE PLANE
0.010(0.25) BSC
0.050(1.27)
0.024(0.61)
0.063(1.60)
0.016(0.41)
0.050(1.27)
0o-8o
DETAIL "A"
0.103(2.62)
0.213(5.40)
NOTE:
1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN
BRACKET IS IN MILLIMETERS.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS.
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH
OR PROTRUSIONS.
0.138(3.51)
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING)
SHALL BE 0.004" INCHES MAX.
5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION BA.
6) DRAWING IS NOT TO SCALE.
RECOMMENDED LAND PATTERN
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
10
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
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)
0.199(5.05)
0.062(1.58)
0.074(1.88)
0.114(2.90)
0.122(3.10)
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
SEATING PLANE
0.002(0.05)
0.004(0.10)
0.008(0.20)
0.016(0.40)
0.026(0.65)
0o-6o
0.006(0.15)
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
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
11
MP6231/MP6232 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
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.
MP6231/MP6232 Rev. 1.2
3/31/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
12
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