PI5PD2560/2561
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Dual Channel, Adjustable Current -Limited Power Switch
Features
Description
Two separate current limiting channels
Meets USB Current-Limiting Requirement
±7.5% Current-Limit Accuracy at 2.8A
Adjustable Current Limit, 250mA-2.8A (typ)
Fast Over-current Response - 3.5μS (typ)
44mΩ High-Side MOSFET
The PI5PD2560/2561 is dual-channel power-distribution
switch intended for applications where precision current
limiting is required or heavy capacitive loads and short
circuits are encountered. These devices offer a
programmable current-limit threshold between 250 mA
and 2.8A (typ) per channel via an external resistor. The
power-switch rise and fall times are controlled to
minimize current surges during turn on/off.
Operating Range: 2.5 V to 5.5V
2μA Maximum Standby Supply Current
Reverse Input-Output Voltage Protection
Built-in Soft-Start
Each channel of the PI5PD2560/2561 devices limit the
output current to a safe level by switching into a
constant-current mode when the output load exceeds the
current-limit threshold.
15 kV / 8 kV System-Level ESD Capable
Device Package: TDFN 3x3-10L
UL Listed – File No. E341484
CB Certified
The FAULTx logic output for each channel
independently asserts low during over-current or over
temperature.
Applications
USB Ports/Hubs
Digital TV
Set-Top Boxes
VOIP Phones
Typical Application Circuit
VIN
IN
IN
O UT1
O UT2
Pin Configuration
C4
R1
R2
C1
C2
0.1uF
10
9
GND
/FAULT1
OUT1
1
2
100k
100k
C3
IN
IN
/FAU LT1
/FAU LT2
ILIM
OUT2
8
7
6
3
4
5
R3
EN1
EN2
ILIM
Logic signal
EN1
EN2
G ND
/FAULT2
P ower Pad
TDFN3.0x3.0-10L(Top View)
Pin Description
Pin No.
Pin Name
Type
Description
PI5PD2560
PI5PD2561
1
2, 3
4
GND
IN
-
I
I
Ground.
Power input voltage.
Enable input, logic low/high turns on channel one power switch.
/EN1
/EN2
EN1
EN2
5
I
Enable input, logic low/high turns on channel two power switch.
Active-low open-drain output, asserted during over-current or
over-temperature condition occur on channel 2
External resistor used to set current-limit threshold; recommended
20 kΩ ≤ RILIM ≤ 187 kΩ.
6
/FAULT2
ILIM
O
7
I
8
9
OUT2
OUT1
O
O
Power switch output for channel two
Power switch output for channel one
Active-low open-drain output, asserted during over-current or
over-temperature condition occur on channel 1
10
/FAULT1
O
2016-03-0004
PT0489-5
04/29/16
1