LT1511CSW View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LT1511CSW

Constant-Current/Constant-Voltage 3A Battery Charger with Input Current Limiting

Linear Technology 

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LT1511

APPLICATIONS INFORMATION

GND

D1

CIN

CIN

GND GND

SW GND

GND VCC1

GND

GND

L1

TO

GND

GND

TO

GND

GND

RS1

COUT

NOTE: CONNECT ALL GND PINS TO EXPANDED PC LANDS FOR PROPER HEAT SINKING

LT1511 • F14

Figure 14. Critical Electrical and Thermal Path Layout

PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.

0.291 – 0.299**

(7.391 – 7.595)

0.010

(0.254

–

–

0.029

0.737)

×

45°

0.093 – 0.104

(2.362 – 2.642)

SW Package

24-Lead Plastic Small Outline (Wide 0.300)

(LTC DWG # 05-08-1620)

0.598 – 0.614*

(15.190 – 15.600)

0.037 – 0.045

(0.940 – 1.143)

24 23 22 21 20 19 18 17 16 15 14 13

0° – 8° TYP

0.050

0.009 – 0.013

(0.229 – 0.330)

NOTE:

NOTE 1

0.016 – 0.050

(0.406 – 1.270)

(1.270)

TYP

0.014 – 0.019

(0.356 – 0.482)

TYP

1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.

THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS

NOTE 1

0.004 – 0.012

(0.102 – 0.305)

0.394 – 0.419

(10.007 – 10.643)

*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

1 2 3 4 5 6 7 8 9 10 11 12

S24 (WIDE) 0996

RELATED PARTS

PART NUMBER DESCRIPTION

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Microprocessor-Controlled Battery Management System

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500kHz Step-Down Switching Regulator

LT1505

High Current, High Efficiency Battery Charger

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COMMENTS

Can Charge, Discharge and Gas Gauge NiCd and Lead-Acid

Batteries with Software Charging Profiles

High Frequency, Small Inductor, High Efficiency Switchers, 1.5A Switch

High Frequency, Small Inductor, High Efficiency Switcher, 1.5A Switch

94% Efficiency, Synchronous Current Mode PWM

Up to 1.5A Charge Current for Lithium-Ion, NiCd and NiMH Batteries

VIN Can Be Higher or Lower Than Battery Voltage

Up to 2A Charge Current for Lithium-Ion, NiCd and NiMH Batteries

16 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com

1511fb LT/TP 0399 REV B 2K • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1995

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