SC1102A Ver la hoja de datos (PDF) - Semtech Corporation

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SC1102A

Synchronous Voltage Mode Controller for Distributed Power Supply Applications

Semtech Corporation 

SC1102/SC1102A

POWER MANAGEMENT

Pin Configuration

Ordering Information

Top View

(14-Pin SOIC)

Pin Descriptions

Device (1)

Frequency

Package

SC1102CS.TR

SC1102CSTRT(2)

SC1102ASTR

SC1102ASTRT(2)

200kHz

500kHz

SO-14

SC1102EVB

Evaluation Board

Notes:

(1) Only available in tape and reel packaging. A reel

contains 2500 devices.

(2) Lead free product. This product is fully WEEE and

RoHS compliant.

Pin #

Pin Name

Pin Function

1

VCC

2

PWRGD

3

OVP

4

OCSET

5

PHASE

6

DH

7

PGND

8

DL

9

BSTL

10

BSTH

11

SENSE

12

VREF

13

SS/SHDN

14

GND

Chip supply voltage

Logic high indicates correct output voltage

Over voltage protection.

Sets the converter overcurrent trip point

Input from the phase node between the MOSFET’S

High side driver output

Power ground

Low side driver output

Bootstrap, low side driver.

Bootstrap, high side driver.

Voltage sense input

Buffered band gap voltage reference.

Soft start. A capacitor to ground sets the slow start time.

Signal ground

NOTE:

(1) All logic level inputs and outputs are open collector TTL compatible.

 2006 Semtech Corp.

4

www.semtech.com

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