MP62340-1/MP62341-1
The Future of Analog IC Technology
3.3V/5V, Dual-Channel 1A
Current-Limited Power Distribution Switches
with Output Discharge
FEATURES
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1A Continuous Current
Accurate Current Limit
Output Discharge Function
2.7V to 5.5V Supply Range
140
µ
A 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
PDAs
Portable GPS
Notebook PC
Set-top-box
Telecom and Network Systems
PC Card Hot Swap
USB Power Distribution
DESCRIPTION
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.
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.
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.
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
+5V
1 GND
2 IN
FLAG1 8
7
OUT1
To USB Controller
Output 1
3
4
MP62340-1/
MP62341-1
EN1*
EN2*
OUT2
6
Output 2
FLAG2 5
* EN is active high for MP62341-1
MP62340-1/MP62341-1 Rev.0.9
www.MonolithicPower.com
11/2/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
1
MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
ORDERING INFORMATION
Part Number
MP62340DS-1
MP62340DH-1
MP62341DS-1
MP62341DH-1
Enable
Active
Low
Active
High
Switch
Maximum
Typical Short-
Continuous Circuit Current
Load Current
@ T
A
=25C
1A
1.5A
Package
SOIC8
MSOP8E
SOIC8
MSOP8E
Top
Marking
Temperature
Dual
62340DS-1
62340DH-1
–40°C to +85°C
62341DS-1
62341DH-1
* 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
IN
EN1*
EN2*
1
2
3
4
8
7
6
5
FLAG1
OUT1
OUT2
FLAG2
GND
IN
EN1*
EN2*
1
2
3
4
TOP VIEW
8
7
6
5
FLAG1
OUT1
OUT2
FLAG2
EXPOSED PAD
ON BACKSIDE
CONNECT TO GND
SOIC8
MP62340-1/MP62341-1
Dual-Channel
(* EN is active high for MP62341-1)
MSOP8E
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)
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
SOIC8..................................... 90 ...... 42...
°C/W
MSOP8E................................. 55 ...... 12...
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of
themaximum junction temperature T
J
(MAX), the junction-
toambient thermal resistance
θ
JA,
and the ambient
temperature T
A.
The maximum allowable continuous power
dissipation at any ambient temperature is calculated by PD
(MAX) = (T
J
(MAX) - T
A
)/θ
JA
. 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.
θ
JA
θ
JC
MP62340-1/MP62341-1 Rev.0.9
www.MonolithicPower.com
11/2/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
2
MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
ELECTRICAL CHARACTERISTICS
(4)
V
IN
=5V, T
A
=+25°C, unless otherwise noted.
Parameter
IN Voltage Range
Supply Current
Supply Current
Shutdown Current
Off Switch Leakage
Current Limit
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
V
OUT
Rising Time, Tr
(5)
V
OUT
Falling Time, Tf
(6)
Turn On Time, Ton
(7)
Turn Off Time, Toff
(8)
Condition
One Channel Enabled, I
OUT
=0, One
Switch ON
Both Channels Enabled, I
OUT
=0, Both
Switches ON
Device Disable, V
OUT
=float, V
IN
=5.5V
Device Disable, V
IN
=5.5V
Min
2.7
Typ
90
140
1
1
Max
5.5
120
160
Units
V
µA
µA
µA
µA
1.1
Current Ramp (slew rate≤100A/s) on
Output
Rising Edge
I
OUT
=100mA (-40°C≤T
A
≤+85°C)
2
I
SINK
=5mA
V
IN
=V
FLAG
=5.5V
1.5
1.7
2.2
2.4
2.65
A
A
V
mV
mΩ
V
V
V
µA
°C
°C
ms
ms
ms
ms
ms
ms
Ω
ms
µA
µA
1.95
250
85
130
0.8
0.4
1
V
IN
=5.5V, C
L
=1µF, R
L
=5.5Ω
V
IN
=2.7V, C
L
=1µF, R
L
=5.5Ω
V
IN
=5.5V, C
L
=1µF, R
L
=5.5Ω
V
IN
=2.7V, C
L
=1µF, R
L
=5.5Ω
C
L
=100µF, RL=5.5Ω
C
L
=100µF, RL=5.5Ω
140
20
0.9
1.7
0.5
0.5
3
10
100
4
8
1
0.2
15
Discharge Resistance
FLAG Deglitch Time
EN Input Leakage
Reverse Leakage Current
V
OUT
=5.5V, V
IN
=GND
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.0.9
www.MonolithicPower.com
11/2/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
3
MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
PIN FUNCTIONS
SOIC8
MSOP8E
1
2
3
4
5
6
7
Name
Description
GND,
Ground. MSOP8E exposed pad must be connected to a pround plane for optional
Exposed Pad
thermal performance.
(MSOP8E)
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
FLAG1
IN-to-OUT1 Power-Distribution Switch Output
IN-to-OUT1 Over-current, active-low output flag. Open-Drain.
8
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= +25ºC, unless otherwise noted.
OUT
X
RL
CL
V
O
(OUT
X
)
t
r
90%
10%
90%
10%
t
f
TEST CIRCUIT
50%
V
I
(EN
X
)
50%
VI(ENX)
50%
50%
t
on
V
O
(OUT
X
)
90%
10%
t
off
VO(OUTX)
ton
90%
10%
toff
VOLTAGE WAVEFORMS
Figure 1—Test Circuit and Voltage Waveforms
MP62340-1/MP62341-1 Rev.0.9
www.MonolithicPower.com
11/2/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
4
MP62340-1/MP62341-1 –CURRENT-LIMITED POWER DISTRIBUTION SWITCHES
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
=5V, C
L
=1
µ
F,Ta=25℃, for only one channel unless otherwise noted.
3.5
1.5
1.7
1.6
1.5
TURN ON DELAY (ms)
TURN OFF DELAY (ms)
3
2.5
2
1.5
1
2.5 3
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
1.4
1.3
1.2
1.1
1
2.5
3
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
RISE TIME(ms)
1.4
1.3
1.2
1.1
1
0.9
0.8
2.5
3
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
Supply Current, Output
Enable vs. Input Voltage
STATIC DRAIN-SOURCE ON-STATE
RESISTANCE VARIATION (%)
65
110
25
20
15
10
5
0
-5
-10
-15
-20
Static Drain-Source On-State
Resistance Variation vs.
Ambient Temperature
I
O
=0.1A
SUPPLY CURRENT (uA)
60
100
90
80
70
60
FALL TIME (us)
55
50
45
40
35
30
2.5
3
3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
2.5
3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
-25
-40 -20
0 20
40 60 80
AMBIENT TEMPERATURE (
o
C)
Static Drain-Source On-State
Resistance vs. Input Voltage
STATIC DRAIN-SOURCE ON-STATE
INPUT TO OUTPUT VOLTAGE (mV)
140
130
120
110
100
90
80
70
2.5 3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
6
I
O
=1A
140
120
100
80
60
40
20
0
Input to Output Voltage vs.
Load Current
1.8
Vin=2.7V
Vin=3.3V
Vin=4V
Vin=5V
Vin=5.5V
Current Limit vs.
Input Voltage
CURRENT LIMIT (A)
1.7
1.6
1.5
1.4
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)
6
MP62340-1/MP62341-1 Rev.0.9
www.MonolithicPower.com
11/2/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
5
