TPS4800-Q1中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? AEC-Q100 automotive qualified for automotive

applications

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

ambient operating temperature range

? Functional Safety-Capable

– Documentation available to aid functional safety

system design

? 3.5V to 80V input range (100V absolute maximum)

? Reverse input protection down to –65V

? Integrated 11V charge pump

? Low quiescent current, 43μA in operation

? Low 1.5μA shutdown current (EN/UVLO = Low)

? Strong gate driver (2A source and sink)

? Adjustable short circuit protection (ISCP) using

external Rsense or MOSFET VDS sensing with

adjustable delay (TMR)

? High or low-side current sense configuration

(CS_SEL)

? Fault indication (FLT) during short circuit fault,

input under voltage and short-circuit comparator

diagnosis (SCP_TEST)

? Fault indication (FLT_GD) for gate drive UVLO

? Adjustable input undervoltage lockout (UVLO) and

overvoltage protection (OV)

2 Applications

? Automotive 48V BMS

? DC/DC converter

? Power tools

3 Description

The TPS48000-Q1 is a 100V low IQ smart high

side driver with protection and diagnostics. With wide

operating voltage range of 3.5V–80V, the device is

suitable for 12V, 24V, and 48V system designs. The

device can withstand and protect the loads from

negative supply voltages down to –65V.

It has a strong (2A) gate drive that enables power

switching using parallel MOSFETs in high current

system designs.

The device provides adjustable short circuit

protection. Auto-retry and latch-off fault behavior can

be configured. By using CS+ and CS– pins, current

sensing can be done either by an external sense

resistor or by MOSFET VDS sensing. High side or low

side current sense resistor configuration is possible

by using CS_SEL pin input. The device also features

diagnosis of the internal short circuit comparator using

external control on SCP_TEST input.

Low quiescent current of 43μA (typical) in operation

enables always ON system designs. Quiescent

current reduces to 1.5μA (typical) with EN/UVLO low.

The TPS48000-Q1 is available in a 19-pin VSSOP

package.