TPS2561-Q1
TPS2561-Q1 is DUAL CHANNEL PRECISION ADJUSTABLE CURRENT-LIMITED POWER SWITCH manufactured by Texas Instruments.
FEATURES
- 2 Qualified for Automotive Applications
- Two Separate Current Limiting Channels
- Meets USB Current-Limiting Requirements
- Adjustable Current Limit, 250 m A- 2.8 A (typ)
- ± 7.5% Current-Limit Accuracy at 2.8 A
- Fast Overcurrent Response
- 3.5-μS (typ)
- Two 44-mΩ High-Side MOSFETs
- Operating Range: 2.5 V to 6.5 V
- 2-μA Maximum Standby Supply Current
- Built-in Soft-Start
- 15 k V or 8 k V System-Level ESD Capable
- UL Listed
- File No. E169910
- CB and Nemko Certified
DESCRIPTION
The TPS2561-Q1 is a 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 m A and 2.8 A (typ) per channel through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on or off.
Each channel of the TPS2561-Q1 device limits the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULTx logic output for each channel independently asserts low during overcurrent and over temperature conditions.
TPS2561-Q1 DRC PACKAGE
(TOP VIEW)
GND 1 IN 2 IN 3
EN1 4 EN2 5
10 FAULT1 9 OUT1
PAD 8 OUT2 7 ILIM
6 FAULT2
ENx = Active Low for the TPS2560 ENx = Active High for the TPS2561-Q1
2.5 V
- 6.5 V
0.1 μF
OUT1
2x RFAULT 100 kΩ
Fault Signal Fault Signal Control Signal
OUT2
RILIM
ILIM FAULT1 FAULT2 GND EN1
Control...