LX1663CD datasheet(6/15 Pages) MICROSEMI

Part #	LX1663CD

Description	SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC

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Manufacturer	MICROSEMI [Microsemi Corporation]

Direct Link	http://www.microsemi.com

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SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC

LX1662/62A, LX1663/63A

PRODUCT DA T ABOOK 1996/1997

Rev. 1.1 11/99

6

P RODUCTION D ATA S HEET

BLOCK DIAGRAM

UVLO

10.6/10.1

V

CC

2V Out

2V REF

Internal

V

CC

Trimmed

V

REG

Error Comp

CS Comp

40mV

100mV

**

1

2

3

S

PWM Latch

Q

RQ

R DOM

Off-Time

Controller

DAC

11

C

T

V

CC_CORE

INV

SS

D OUT

4

5

VID0

VID1

6

VID2

7

VID3

8

VID4

OV Comp

UV Comp

Break

Before

Make

SYNC EN

Comp

9

PWRGD*

10

OV*

12

V

CC

13

BDRV

14

GND

15

TDRV

16

V

C1

OV

LX1663/1663A ONLY

Note: Pin numbers are correct for LX1663/1663A, 16-pin package.

* Not connected on the LX1662/1662A.

** 60mV in LX1662A & LX1663A

0.7V

10k

FIGURE 5 — Block Diagram

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LX1663CD Datasheet(PDF) 6 Page - Microsemi Corporation

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