MP62340DS-1-Z [MPS]
Power Supply Support Circuit, Fixed, 2 Channel, PDSO8, SOIC-8;
| 型号： | MP62340DS-1-Z |
| 厂家： | 
MONOLITHIC POWER SYSTEMS |
| 描述： | Power Supply Support Circuit, Fixed, 2 Channel, PDSO8, SOIC-8 光电二极管 |
| 文件： | 总12页 (文件大小：374K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MP62340-1/MP62341-1
3.3V/5V, Dual-Channel 1A
Current-Limited Power Distribution Switches
with Output Discharge
The Future of Analog IC Technology
DESCRIPTION
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
1A Continuous Current
Accurate Current Limit
The MP62340-1/MP62341-1 Power Distribution
Switch features internal current limiting to
prevent damage to host devices due to faulty
load conditions. The MP62340-1/MP62341-1
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 load switching applications. The MP62340-
1/MP62341-1 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.
Output Discharge Function
2.7V to 5.5V Supply Range
140µA 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
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
•
•
•
•
•
•
•
PDAs
Portable GPS
Notebook PC
Set-top-box
Telecom and Network Systems
PC Card Hot Swap
USB Power Distribution
The MP62340-1/MP62341-1 involves discharge
function that provides a resistive discharge path
for the external output capacitor when the part
is disabled.
The MP62340-1/MP62341-1 is available in 8-
pin MSOP package with exposed pad and
SOIC package without exposed pad.
“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
MP62340-1/
MP62341-1
Output 2
3
4
6
5
EN1*
OUT2
EN2*
FLAG2
* EN is active high for MP62341-1
MP62340-1/MP62341-1 Rev.0.91
1/25/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
1
MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
ORDERING INFORMATION
Maximum
Typical Short-
Part Number
Enable Switch Continuous Circuit Current Package Top Marking Temperature
Load Current
@ TA=25C
MP62340DS-1*
MP62340DH-1
MP62341DS-1
MP62341DH-1
SOIC8
MSOP8E
SOIC8
M62340-1
62340
Active
Low
Dual
1A
1.5A
–40°C to +85°C
M62341-1
62341
Active
High
MSOP8E
* For Tape & Reel, add suffix –Z (e.g. MP62340DS–1–Z).
For RoHS compliant packaging, add suffix –LF (e.g. MP62340DS–1–LF–Z)
PACKAGE REFERENCE
TOP VIEW
TOP VIEW
GND
1
2
3
4
8
7
6
5
FLAG1
OUT1
OUT2
FLAG2
GND
IN
FLAG1
OUT1
OUT2
FLAG2
1
2
3
4
8
7
6
5
IN
EN1*
EN2*
EN1*
EN2*
EXPOSED PAD
ON BACKSIDE
CONNECT TO GND
MSOP8E
SOIC8
MP62340-1/MP62341-1
Dual-Channel
(* EN is active high for MP62341-1)
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance (3)
SOIC8.....................................90...... 42... °C/W
MSOP8E.................................55...... 12... °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
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.
MP62340-1/MP62341-1 Rev.0.91
1/25/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
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2
MP62340-1/MP62341-1 –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
A
1.1
1.5
2.2
Current Ramp (slew rate≤100A/s) on
Output
Trip Current
1.7
2.4
A
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
°C
Thermal Shutdown Hysteresis
20
0.9
1.7
°C
ms
ms
ms
ms
VOUT Rising Time, Tr (5)
VIN=5.5V, CL =1µF, RL =5.5ꢀ
VIN=2.7V, CL =1µF, RL =5.5ꢀ
VIN=5.5V, CL =1µF, RL =5.5ꢀ
VIN=2.7V, CL =1µF, RL =5.5ꢀ
VOUT Falling Time, Tf (6)
Turn On Time, Ton (7)
0.5
0.5
3
CL=100µF, RL=5.5ꢀ
CL=100µF, RL=5.5ꢀ
ms
ms
ꢀ
(8)
Turn Off Time, Toff
10
Discharge Resistance
FLAG Deglitch Time
EN Input Leakage
100
8
4
15
ms
µA
µA
1
Reverse Leakage Current
VOUT=5.5V, VIN=GND
0.2
Notes:
4) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
5) Measured from 10% to 90% output signal.
6) Measured from 90% to 10% output signal.
7) Measured from 50% EN signal to 90% output signal.
8) Measured from 50% EN signal to 10% output signal.
MP62340-1/MP62341-1 Rev.0.91
1/25/2010
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
3
MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
PIN FUNCTIONS
SOIC8
MSOP8E
Name
Description
GND,
Exposed Pad
(MSOP8E)
Ground. MSOP8E exposed pad must be connected to a ground plane for optional
thermal performance.
1
2
3
4
5
6
7
8
IN
Input Voltage. Accepts 2.7V to 5.5V input.
Active Low: (MP62340-1), Active High: (MP62341-1)
Active Low: (MP62340-1), Active High: (MP62341-1)
IN-to-OUT2 Over-current, active-low output flag. Open-Drain.
IN-to-OUT2 Power-Distribution Switch Output.
EN1
EN2
FLAG2
OUT2
OUT1
IN-to-OUT1 Power-Distribution Switch Output
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
MP62340-1/MP62341-1 Rev.0.91
1/25/2010
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MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=5V, CL=1µF,Ta=25℃, for only one channel unless otherwise noted.
1.5
1.4
1.3
1.2
1.1
1
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
3.5
3
2.5
2
1.5
1
0.9
0.8
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)
Supply Current, Output
Enable vs. Input Voltage
Static Drain-Source On-State
Resistance Variation vs.
Ambient Temperature
I =0.1A
O
110
100
90
65
60
55
50
45
40
35
30
25
20
15
10
5
0
80
-5
-10
-15
-20
-25
70
60
2.5
3
3.5
4
4.5
5
5.5
6
2.5
3
3.5
4
4.5
5
5.5 6
-40 -20
0
20
40 60 80
AMBIENT TEMPERATURE (oC)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Input to Output Voltage vs.
Load Current
Static Drain-Source On-State
Resistance vs. Input Voltage
Current Limit vs.
Input Voltage
I =1A
O
1.8
1.7
1.6
1.5
1.4
140
130
120
110
100
90
140
120
100
80
Vin=2.7V
Vin=3.3V
Vin=4V
60
Vin=5V
40
Vin=5.5V
20
80
0
70
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
0.2
0.4
0.6
0.8
1
INPUT VOLTAGE (V)
OUTPUT CURRENT (A)
INPUT VOLTAGE (V)
MP62340-1/MP62341-1 Rev.0.91
1/25/2010
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MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
TYPICAL PERFORMANCE CHARACTERISTICS(continued)
VIN=5V, CL=1µF,Ta=25℃, for only one channel, unless otherwise noted.
Current Limit Response Time
vs. Peak Current
Threshold Trip Current vs.
Input Voltage
2.3
2.2
2.1
2
20
16
12
8
1.9
1.8
1.7
1.6
4
2.5
3
3.5
4
4.5
5
5.5
6
2
4
6
8
10 12 14 16 18 20
INPUT VOLTAGE (V)
PEAK CURRENT (A)
V
V
OUT
OUT
5V/div
5V/div
V
OUT
2V/div
EN
EN
5V/div
5V/div
EN
5V/div
Flag
Flag
5V/div
5V/div
Flag
I
I
OUT
1A/div
OUT
1A/div
5V/div
I
OUT
1A/div
400us/div
100us/div
400us/div
Short Circuit Current,
Device Enabled into Short
Threshold Trip Current with
Ramped Load
on Enabled Device
V
OUT
2V/div
I
OUT
V
OUT
2V/div
500mA/div
EN
5V/div
EN
5V/div
Flag
I
OUT
1A/div
5V/div
I
OUT
1A/div
400us/div
400us/div
4ms/div
MP62340-1/MP62341-1 Rev.0.91
1/25/2010
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MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
TYPICAL PERFORMANCE CHARACTERISTICS(continued)
VIN=5V, CL=1µF,Ta=25℃, for only one channel, unless otherwise noted.
Ramped Load
Inrush Current with
on Enabled Device
Different Load Capacitance
IOUT=1A
220uF
470uF
Flag
5V/div
100uF
Flag
2V/div
I
OUT
500mA/div
EN
5V/div
I
I
OUT
OUT
1A/div
1A/div
2ms/div
1ms/div
2ms/div
Turn Off Delay and Fall Time
with Output Discharge
IOUT=0A
V
OUT
2V/div
EN
5V/div
Flag
5V/div
I
OUT
500mA/div
200us/div
MP62340-1/MP62341-1 Rev.0.91
1/25/2010
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7
MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
FUNCTION BLOCK DIAGRAM
Thermal
Sense
FLAG1
Deglitch
EN1*
+
--
AMP
Logic
Charge
Pump
OUT1
OUT2
Current
Sense
UVLO
+
Vref
-
IN
Current
Sense
Charge
Pump
--
+
AMP
Logic
FLAG2
EN2*
Deglitch
Thermal
Sense
GND
* EN is active high for MP62341-1
Figure 2—Functional Block Diagram
MP62340-1/MP62341-1 Rev.0.91
1/25/2010
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8
MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
Thermal Protection
DETAILED DESCRIPTION
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.
Over Current
When the load exceeds trip current (minimum
threshold current triggering constant-current
mode) or
a
short is present, MP62340-
1/MP62341-1 switches into to a constant-current
mode (current limit value). MP62340-1/MP62341-
1 will be shutdown only if the over current
condition stays long enough to trigger thermal
protection.
Under-voltage Lockout (UVLO)
This circuit is used to monitor the input voltage to
ensure that the MP62340-1/MP62341-1 is
operating correctly. This UVLO circuit also
ensures that there is no operation until the input
voltage reaches the minimum spec.
Trigger over current protection for different
overload conditions occurring in applications:
1) The output has been shorted or overloaded
before the device is enabled or input applied.
MP62340-1/MP62341-1 detects the short or
overload and immediately switches into a
constant-current mode.
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.
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.
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.
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
of the device is exceeded. The MP62340-1/
MP62341-1 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.
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 voltage lockout.
MP62340-1/MP62341-1 Rev.0.91
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1/25/2010
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MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
APPLICATION INFORMATION
on the input and improves the immunity of the
device to short-circuit transients.
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
Greater than 10µF capacitor between IN and
GND is recommended. This precaution reduces
power-supply transients that may cause ringing
+5V
8
1
2
To USB Controller
Output 1
FLAG1
OUT1
GND
IN
7
MP62340-1/
MP62341-1
Output 2
3
4
6
5
EN1*
OUT2
EN2*
FLAG2
* EN is active high for MP62341-1
Figure 3—Application Circuit
MP62340-1/MP62341-1 Rev.0.91
1/25/2010
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10
MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
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
MP62340-1/MP62341-1 Rev. 0.91
1/25/2010
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11
MP62340-1/MP62341-1 –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.
MP62340-1/MP62341-1 Rev.0.91
1/25/2010
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12
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Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
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