MP62340-1
The Future of Analog IC Technology
3.3V/5V, Dual-Channel 1A
Current-Limited Power Distribution Switches
with Output Discharge
DESCRIPTION
FEATURES
The MP62340-1 Power Distribution Switch
features internal current limiting to prevent
damage to host devices due to faulty load
conditions. The MP62340-1 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 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 120C.
The MP62340-1 involves discharge
function that provides a resistive discharge path
for the external output capacitor when the part
is disabled.
The MP62340-1 is available in 8-pin SOIC
package without exposed pad.
1A Continuous Current
Accurate Current Limit
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
APPLICATIONS
PDAs
Portable GPS
Notebook PC
Set-top-box
Telecom and Network Systems
PC Card Hot Swap
USB Power Distribution
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
1 GND
+5V
2 IN
FLAG1 8
7
OUT1
To USB Controller
Output 1
MP62340-1
3
4
MP62340-1 Rev. 1.1
7/16/2019
EN1*
EN2*
OUT2
6
Output 2
FLAG2 5
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© 2019 MPS. All Rights Reserved.
1
MP62340-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
ORDERING INFORMATION
Part Number
MP62340DS-1*
Enable Switch
Active
Low
Maximum
Continuous
Load Current
Typical ShortCircuit Current
@ TA=25C
Package
Top Marking
Temperature
1A
1.5A
SOIC8
M62340-1
–40C to +85C
Dual
* 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
GND
1
8
FLAG1
IN
2
7
OUT1
EN1*
3
6
OUT2
EN2*
4
5
FLAG2
SOIC8
MP62340-1
Dual-Channel
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance (3)
IN .................................................. -0.3V to +6.0V
EN, FLAG, OUT to GND .............. -0.3V to +6.0V
Continuous Power Dissipation (TA = +25°C) (2)
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
SOIC8...................................... 90 ....... 42 ... C/W
MP62340-1 Rev. 1.1
7/16/2019
θJA
θJC
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.
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2
MP62340-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
ELECTRICAL CHARACTERISTICS (4)
VIN=5V, TA=+25°C, unless otherwise noted.
Parameter
Condition
IN Voltage Range
Min
Typ
Max
Units
5.5
V
90
120
μA
140
160
μA
2.7
One Channel Enabled, IOUT=0, One
Switch ON
Both Channels Enabled, IOUT=0, Both
Switches ON
Device Disable, VOUT=float, VIN=5.5V
Device Disable, VIN=5.5V
Supply Current
Supply Current
Shutdown Current
Off Switch Leakage
Current Limit
1
1
1.1
Trip Current
Under-voltage Lockout
Under-voltage Hysteresis
FET On Resistance
EN Input Logic High Voltage
EN Input Logic Low Voltage
FLAG Output Logic Low Voltage
FLAG Output High Leakage
Current
Thermal Shutdown
Thermal Shutdown Hysteresis
Current Ramp (slew rate≤100A/s) on
Output
Rising Edge
CL=100μF, RL=5.5Ω
Discharge Resistance
FLAG Deglitch Time
EN Input Leakage
Reverse Leakage Current
1.7
2.4
A
2.65
250
85
VIN=VFLAG=5.5V
Turn Off Time, Toff
(8)
A
ISINK=5mA
Turn On Time, Ton (7)
VOUT Falling Time, Tf (6)
2.2
0.8
0.4
1
μA
0.5
0.5
3
°C
°C
ms
ms
ms
ms
ms
10
ms
130
140
20
0.9
1.7
100
4
VOUT=5.5V, VIN=GND
8
1
0.2
V
mV
mΩ
V
V
V
2
VIN=5.5V, CL =1μF, RL =5.5Ω
VIN=2.7V, CL =1μF, RL =5.5Ω
VIN=5.5V, CL =1μF, RL =5.5Ω
VIN=2.7V, CL =1μF, RL =5.5Ω
CL=100μF, RL=5.5Ω
VOUT Rising Time, Tr (5)
1.5
1.95
IOUT=100mA (-40°C≤TA≤+85°C)
μA
μA
Ω
15
ms
μA
μA
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 Rev. 1.1
7/16/2019
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© 2019 MPS. All Rights Reserved.
3
MP62340-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
PIN FUNCTIONS
SOIC8
Name
Description
1
GND
Ground.
2
IN
3
EN1
Active Low: (MP62340-1).
4
EN2
Active Low: (MP62340-1).
5
FLAG2
IN-to-OUT2 Over-current, active-low output flag. Open-Drain.
6
OUT2
IN-to-OUT2 Power-Distribution Switch Output.
7
OUT1
IN-to-OUT1 Power-Distribution Switch Output
8
FLAG1
IN-to-OUT1 Over-current, active-low output flag. Open-Drain.
Input Voltage. Accepts 2.7V to 5.5V input.
TYPICAL PERFORMANCE CHARACTERISTICS
TA = +25ºC, unless otherwise noted.
OUTX
RL
tf
tr
CL
VO(OUTX)
90%
10%
90%
10%
TEST CIRCUIT
50%
50%
50%
VI(ENX)
50%
VI(ENX)
toff
ton
VO(OUTX)
90%
ton
VO(OUTX)
10%
toff
90%
10%
VOLTAGE WAVEFORMS
Figure 1—Test Circuit and Voltage Waveforms
MP62340-1 Rev. 1.1
7/16/2019
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4
MP62340-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
TYPICAL PERFORMANCE CHARACTERISTICS
VIN=5V, CL=1μF,Ta=25℃, for only one channel unless otherwise noted.
1.5
1.7
1.6
TURN OFF DELAY (ms)
3
2.5
2
1.5
1.4
1.3
1.2
1.1
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
1.4
1.3
1.2
1.1
1
0.9
1
2.5 3
1.5
RISE TIME(ms)
TURN ON DELAY (ms)
3.5
1
6
2.5
3
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
0.8
2.5
6
Supply Current, Output
Enable vs. Input Voltage
SUPPLY CURRENT (uA)
55
50
45
40
35
30
2.5
3
100
90
80
70
60
3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
120
110
100
90
80
2.5 3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
MP62340-1 Rev. 1.1
7/16/2019
6
INPUT TO OUTPUT VOLTAGE (mV)
STATIC DRAIN-SOURCE ON-STATE
IO=1A
130
70
3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
25
6
IO=0.1A
20
15
10
5
0
-5
-10
-15
-20
-25
-40 -20
0 20
40 60 80
AMBIENT TEMPERATURE (oC)
Input to Output Voltage vs.
Load Current
Static Drain-Source On-State
Resistance vs. Input Voltage
140
2.5
Current Limit vs.
Input Voltage
1.8
140
Vin=2.7V
120
CURRENT LIMIT (A)
FALL TIME (us)
60
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
Static Drain-Source On-State
Resistance Variation vs.
Ambient Temperature
STATIC DRAIN-SOURCE ON-STATE
RESISTANCE VARIATION (%)
110
65
3
Vin=3.3V
100
80
Vin=4V
60
Vin=5V
40
Vin=5.5V
20
1.7
1.6
1.5
1.4
0
0
0.2
0.4
0.6
0.8
OUTPUT CURRENT (A)
1
2.5
3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
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5
MP62340-1 –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 (A)
Threshold Trip Current vs.
Input Voltage
2.3
20
2.2
16
2.1
2
12
1.9
1.8
8
1.7
1.6
2.5
4
3
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
2
6
VOUT
5V/div
VOUT
5V/div
EN
5V/div
EN
5V/div
Flag
5V/div
IOUT
1A/div
Flag
5V/div
IOUT
1A/div
4
6 8 10 12 14 16 18 20
PEAK CURRENT (A)
VOUT
2V/div
EN
5V/div
100us/div
400us/div
Flag
5V/div
IOUT
1A/div
Short Circuit Current,
Device Enabled into Short
VOUT
2V/div
IOUT
500mA/div
EN
5V/div
400us/div
MP62340-1 Rev. 1.1
7/16/2019
Threshold Trip Current with
Ramped Load
on Enabled Device
VOUT
2V/div
EN
5V/div
Flag
5V/div
IOUT
1A/div
400us/div
IOUT
1A/div
400us/div
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4ms/div
6
MP62340-1 –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
Flag
2V/div
IOUT
500mA/div
IOUT
1A/div
EN
5V/div
2ms/div
100uF
IOUT
1A/div
1ms/div
2ms/div
Turn Off Delay and Fall Time
with Output Discharge
IOUT=0A
VOUT
2V/div
EN
5V/div
Flag
5V/div
IOUT
500mA/div
MP62340-1 Rev. 1.1
7/16/2019
200us/div
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7
MP62340-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
FUNCTION BLOCK DIAGRAM
Thermal
Sense
FLAG1
Deglitch
EN1*
+
Logic
AMP
--
Charge
Pump
OUT1
Current
Sense
UVLO
+
Vref
-
IN
Current
Sense
Charge
Pump
OUT2
-Logic
AMP
+
FLAG2
EN2*
Deglitch
Thermal
Sense
GND
Figure 2—Functional Block Diagram
MP62340-1 Rev. 1.1
7/16/2019
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MP62340-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
DETAILED DESCRIPTION
Over Current
When the load exceeds trip current (minimum
threshold current triggering constant-current
mode) or a short is present, MP62340-1 switches
into to a constant-current mode (current limit
value). MP62340-1 will be shutdown only if the
over current condition stays long enough to
trigger thermal protection.
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 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 constantcurrent mode. However, high current may
flow for a short period of time before the
current-limit circuit can react.
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 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 constantcurrent mode.
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 MP62340-1 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.
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.
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 Rev. 1.1
7/16/2019
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9
MP62340-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
APPLICATION INFORMATION
Power-Supply Considerations
Greater than 10μF capacitor between IN and
GND is recommended. This precaution reduces
power-supply transients that may cause ringing
1 GND
+5V
2 IN
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.
FLAG1 8
7
OUT1
To USB Controller
Output 1
MP62340-1
3
4
EN1*
EN2*
OUT2
6
Output 2
FLAG2 5
Figure 3—Application Circuit
MP62340-1 Rev. 1.1
7/16/2019
www.MonolithicPower.com
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10
MP62340-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
SOIC8
0.189(4.80)
0.197(5.00)
8
0.050(1.27)
0.024(0.61)
5
0.063(1.60)
0.150(3.80)
0.157(4.00)
PIN 1 ID
1
0.228(5.80)
0.244(6.20)
0.213(5.40)
4
TOP VIEW
RECOMMENDED LAND PATTERN
0.053(1.35)
0.069(1.75)
SEATING PLANE
0.004(0.10)
0.010(0.25)
0.013(0.33)
0.020(0.51)
0.0075(0.19)
0.0098(0.25)
SEE DETAIL "A"
0.050(1.27)
BSC
SIDE VIEW
FRONT VIEW
0.010(0.25)
x 45o
0.020(0.50)
GAUGE PLANE
0.010(0.25) BSC
0.016(0.41)
0.050(1.27)
0o-8o
DETAIL "A"
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.
4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING)
SHALL BE 0.004" INCHES MAX.
5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION AA.
6) DRAWING IS NOT TO SCALE.
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 Rev. 1.1
7/16/2019
www.MonolithicPower.com
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© 2019 MPS. All Rights Reserved.
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