TPS628502-Q1中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? AEC-Q100 qualified for automotive applications

– Device temperature grade 1:

–40°C to +125°C TA

? Functional Safety-Capable

– Documentation available to aid functional safety

system design

? Optimized for low EMI requirements

– Optional pseudo-random spread spectrum

reduces peak emissions

? TJ = –40°C to +150°C

? Family of 1A and 2A (continuous) and 3A (peak)

converters

? Input voltage range: 2.7V to 6V

? Quiescent current: 17μA typical

? Output voltage from 0.6V to 5.5V

? Output voltage accuracy ±1 (PWM operation)

? Forced PWM or PWM/PFM operation

? Adjustable switching frequency:

1.8MHz to 4MHz

? Precise ENABLE input allows:

– User-defined undervoltage lockout

– Exact sequencing

? 100 duty cycle mode

? Active output discharge

? Foldback overcurrent protection – optional

? Power-good output with window comparator

2 Applications

? ADAS camera, ADAS sensor fusion

? Surround view ECU

? Hybrid and reconfigurable cluster

? Head unit, telematics control unit

? External amplifier

3 Description

The TPS62850x-Q1 is a family of pin-to-pin 1A,

2A (continuous), and 3A (peak) high efficiency, easyto-

use synchronous step-down DC/DC converters.

These devices are based on a peak current mode

control topology. These devices are designed for

automotive applications such as infotainment and

advanced driver assistance systems. Low resistive

switches allow up to 2A continuous output current and

3A peak current. In the TPS62850x-Q1, the switching

frequency is externally adjustable from 1.8MHz to

4MHz. The devices can also be synchronized to

an external clock in the same frequency range. In

PWM/PFM mode, the devices automatically enter

power save mode at light loads to maintain high

efficiency across the whole load range. The family

provides a 1 output voltage accuracy in PWM mode

which helps design a power supply with high output

voltage accuracy.

The TPS62850x-Q1 are available in a SOT583

package.