SC1150 Просмотр технического описания (PDF) - Semtech Corporation

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SC1150

PROGRAMMABLE DC/DC CONTROLLER

Semtech Corporation 

PROGRAMMABLE DC/DC

CONTROLLER

March 11, 1998

PIN DESCRIPTION

Pin # Pin Name

1 GND

2

VCC

3

OVP(1)

4

PWRGOOD(1)

5 CSm

6 CSp

7 PGND

8 DH

9 BST

10 SHUTDOWN(1)

11 VOSENSE

12 FB

13 VID3(1)

14 VID2(1)

15 VID1(1)

16 VID0(1)

Pin Function

Small Signal Analog and Digital Ground

Chip Supply Voltage

High Signal out if VO>setpoint + 20%

Open collector logic output, high if VO within

10% of setpoint

Current Sense Input (negative)

Current Sense Input (positive)

Power Ground

High side Driver Output

Vcc for high side Driver

Logic low shuts down the converter

Top end of internal feedback chain

Voltage Feedback Input

Programming Input (MSB)

Programming Input

Programming Input

Programming Input (LSB)

NOTE:

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

GND

1

VCC

2

OVP

3

PWRGOOD

4

CSm

5

CSp

6

PGND

7

DH

8

SC1150

16

VID0

15

VID1

14

VID2

13

VID3

12

FB

11

VOSENSE

10

SHUTDOWN

9

BST

© 1998 SEMTECH CORP.

3

652 MITCHELL ROAD NEWBURY PARK CA

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