TLE4275-Q1中文资料德州仪器数据手册PDF规格书

1 Features

. AEC-Q100 qualified for automotive applications:

. Temperature grade 1: .40°C to +125°C, TA

. Junction temperature: .40°C to +150°C, TJ

. Input voltage range:

. Legacy chip: 5.5V to 42V (45V absolute max)

. New chip: 3.0V to 40V (42V absolute max)

. Maximum output current:

. Legacy chip: 450mA

. New chip: 500mA

. Output voltage accuracy: ±2.0% (across line, load

and temperature)

. Low dropout voltage: 500mV (max) at 300mA

. Low quiescent current:

. Legacy chip: 100μA (typ) at IOUT = 1mA

. New chip: 28μA (typ) at IOUT = 1mA

. Excellent line transient response (new chip):

. ±2% VOUT deviation during cold-crank

. ±2% VOUT deviation (1V/μs VIN slew rate)

. Power-good (reset) with programmable delay

period

. Stable with a 2.2μF or larger capacitor (new chip)

. Reverse-polarity protection (legacy chip)

. Overcurrent and overtemperature protection

. Packages:

. 5-pin TO-252 (KVU)

. 5-pin DDPAK/TO-263 (KTT)

. 20-pin HTSSOP (PWP) (legacy chip)

2 Applications

. Reconfigurable instrument clusters

. Body control modules (BCM)

. Always-on, battery-connected applications:

. Automotive gateways

. Remote keyless entries (RKE)

3 Description

The TLE4275-Q1 is a low-dropout linear regulator

designed to connect to the battery in automotive

applications. For the new chip, the device has an

input voltage range extending to 40V that drives

loads up to 500mA. This range allows the device

to withstand transients (such as load dumps) that

are anticipated in automotive systems. With only

a 28μA quiescent current at IOUT = 1mA (new

chip), the device is designed for powering always-on

components. Microcontrollers (MCUs) and controller

area network (CAN) transceivers in standby systems

are examples of such components.