LT1952

24

1952f

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

© LINEAR TECHNOLOGY CORPORATION 2004

LT/TP 0804 1K • PRINTED IN USA

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

LT1681/LT3781

Synchronous Forward Controllers

High Efficiency 2-Switch Forward Control

LT1698

Secondary Synchronous Rectifier Controller

Use for Isolated Power Supplies, Contains Voltage Margining, Optocoupler

Driver, Synchronization Circuit with the Primary Side, Error Amplifier

LT1725

General Purpose Isolated Flyback Controller

Drives External Power MOSFET, Senses Output Voltage Directly from

Primary Side Switching — No Optoisolator Required, 16-pin SSOP

LT1950

Single Switch Forward Controller

Slope Compensation, Low 100mV Sense Threshold, 16-Pin SSOP

LTC3722-1/LTC3722-2 Dual Mode Phase Modulated Full-Bridge Controllers ZVS Full-Bridge Controllers

LTC3723-1/LTC3723-2 Synchronous Push-Pull PWM Controllers

High Efficiency Push-Pull PWM

LTC3803

SOT-23 Flyback Controller

Adjustable Slope Compensation, Internal Soft-Start, 200kHz

LTC3806

Synchronous Flyback Controller

Excellent Cross Regulation, High Efficiency, Multiple Outputs

LTC3900

Synchronous Rectifier Driver for

Forward Converters

Synchronous MOSFET Driver, Programmable Timeout, Reverse Inductor

Current Sense, 16-pin SSOP

PACKAGE DESCRIPTIO

GN Package

16-Lead Plastic SSOP (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1641)

GN16 (SSOP) 0204

12

3

4

5

6

7

8

.229 – .244

(5.817 – 6.198)

.150 – .157**

(3.810 – 3.988)

16 15 14 13

.189 – .196*

(4.801 – 4.978)

12 11 10 9

.016 – .050

(0.406 – 1.270)

.015 ± .004

(0.38 ± 0.10)

× 45°

0° – 8° TYP

.007 – .0098

(0.178 – 0.249)

.0532 – .0688

(1.35 – 1.75)

.008 – .012

(0.203 – 0.305)

TYP

.004 – .0098

(0.102 – 0.249)

.0250

(0.635)

BSC

.009

(0.229)

REF

.254 MIN

RECOMMENDED SOLDER PAD LAYOUT

.150 – .165

.0250 BSC

.0165 ± .0015

.045 ±.005

*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

INCHES

(MILLIMETERS)

NOTE:

1. CONTROLLING DIMENSION: INCHES

2. DIMENSIONS ARE IN

3. DRAWING NOT TO SCALE