Datasheet
C
USB
GND
D+
D–
V
BUS
USB Connector
3
5
4
2
TPS2511
8
7
6
1ILIM_SET
IN
CS
PAD
OUT
DM
DP
GND
EN
R
ILIM_SET
I
OUT
0.1 mF
100 kW100 kW
CS
EN
V
IN
R
LOAD
UDG-12098
1
2
3
4
8
7
6
5
GND
ILIM_SET
IN
CS
OUT
DM
DP
EN
TPS2511
www.ti.com
SLUSB18 –JUNE 2012
DEVICE INFORMATION
DGN PACKAGE (MSOP)
8 PINS
(Top View)
PIN FUNCTIONS
PIN
TYPE
(1)
DESCRIPTION
NAME NO.
Active low open -drain output, when OUT current is more than approximately half of the current limit set
CS 4 O
by a resistor on ILIM_SET pin, the output is active low. Maximum sink current is 10 mA.
Connected to the D– or D+ line of USB connector, provide the correct voltage with an attached portable
DM 7 I/O
equipment for DCP detection, high impedance while disabled.
Connected to the D+ or D– line of USB connector, provide the correct voltage with an attached portable
DP 6 I/O
equipment for DCP detection, high impedance while disabled.
Logic-level control input, when it is high, turns power switch on, when it is low, turns power switch off
EN 5 I
and turns DP and DM into the high impedance state.
GND 1 G Ground connection.
ILIM_SET 2 I External resistor used to set current-limiting threshold, recommended 16.9 kΩ ≤ R
ILIM_SET
≤ 750 kΩ.
Power supply. Input voltage connected to power switch, connect a ceramic capacitor with a value of
IN 3 P
0.1-µF or greater from the IN pin to GND as close to the device as possible.
OUT 8 O Power-switch output. Connect to VBUS of USB
PowerPAD G Ground connection.
(1) G = Ground, I = Input, O = Output, P = Power
SPACER
SPACER
Figure 5. Test Circuit for System Operation in Typical Characteristics Section
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