TPS22950-Q1中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

1 Features

? Qualified for automotive applications

? AEC-Q100 qualified:

– Device temperature grade 1: –40°C to 125°C

ambient operating temperature range

? Input operating voltage range (VIN): 1.8 V – 5.5 V

? Output current limit (ILIMIT): 0.05 A – 3.5 A (typ)

? Thermal shutdown (TSD)

? ON-resistance (RON):

– RON at VIN = 5 V: 34 mΩ (typ)

– RON at VIN = 3.3 V: 41 mΩ (typ)

? Slow turn-ON timing limits inrush current (typ):

– tON at VIN = 5 V: 832 μs

– tON at VIN = 3.3 V: 695 μs

? Always-ON true reverse current blocking (RCB)

? Fault indication (FLT)

? Quick output discharge (QOD): 130 Ω

? Smart ON pin pulldown (RPD,ON):

– ON ≥ VIH (ION): 50 nA (max)

– ON ≤ VIL (RPD,ON): 500 kΩ (typ)

? Low power consumption:

– ON state (IQ): 40 μA (typ)

– OFF state (ISD): 0.2 μA (typ)

? UL 2367 recognition – file no. E169910

– Certified from ILIM = 66 mA to 2.46 A

2 Applications

? Infotainment and cluster head unit

? Automotive cluster display

? ADAS surround view system ECU

? Body control module and gateway

3 Description

The TPS22950-Q1 is a small, single channel load

switch with robust protection against fault cases with

adjustable output current limiting, reverse current

blocking, and thermal shutdown.

The switch ON state is controlled by a digital input

that is capable of interfacing directly with low-voltage

control signals. When power is first applied, a smart

pulldown is used to keep the ON pin from floating

until system sequencing is complete. After the pin is

deliberately driven high (>VIH), the smart pulldown is

disconnected to prevent unnecessary power loss.

TPS22950-Q1 is available in a standard SOT

package characterized for operation over an ambient

temperature range of –40°C to 125°C.