PG-SSOP-14

Type

Package

Marking

TLE8386EL

PG-SSOP-14

TLE8386

Datasheet

3

Rev. 1.0, 2009-11-30

Smart Boost Controller

TLE8386EL

1Overview

Features

•

Wide Input Voltage Range from 4.75 V to 45 V

•

Constant Current or Constant Voltage Regulation

•

Very Low Shutdown Current: IQ< 10 µA

•

Flexible Switching Frequency Range, 100 kHz to 500 kHz

•

Synchronization with external clock source

•

Output Open Circuit Diagnostic Output

•

Available in a small thermally enhanced PG-SSOP-14 package

•

Internal 5 V Low Drop Out Voltage Regulator

•

Output Overvoltage Protection

•

Internal Soft Start

•

Over Temperature Shutdown

•

Automotive AEC Qualified

•

Green Product (RoHS) Compliant

Description

The TLE8386EL is a boost controller with built in protection and diagnostic features. The main function of this

device is step-up (boost) an input voltage to a larger output voltage. The diagnostics are communicated on a status

output (pin ST) to indicate a fault conditions such as over temperature, open feedback and open load. The

switching frequency is adjustable in the range of 100 kHz to 500 kHz and can be synchronized to an external clock

source. The TLE8386EL features an enable function reducing the shut-down current consumption to <10 µA. The

current mode regulation scheme of this device provides a stable regulation loop maintained by small external

compensation components. The integrated soft-start feature limits the current peak as well as voltage overshoot

at start-up. This IC is suited for use in the harsh automotive environments and provides protection functions such

as output overvoltage protection and overtemperature shutdown.