MC33567

http://onsemi.com

2

PIN ASSIGNMENTS AND FUNCTIONS

PIN #

PIN NAME

PIN DESCRIPTION

1

DRV1

Gate 1 drive. Is internally clamped to ground in power down mode.

2

SENSE1

Sense 1 line. Sense load voltage and provides feedback to regulator.

3

SHDN1

TTL high level turns on regulation for gate 1. (Internal pull−up to 3.3 V)

4

GND

5

SHDN2

TTL high level turns on regulation for gate 2. (Internal pull−up to 3.3 V)

6

SENSE2

Sense 2 line. Sense load voltage and provides feedback to regulator.

7

DRV2

Gate 2 drive. Saturates external FET in bypass mode (MC33567−1 only).

Is internally clamped to ground in power down mode.

8

VCC

Supply voltage for operation and gate drive output − typically 12 V.

Rating

Symbol

Value

Unit

Supply Voltage

VCC

12.5

Vdc

SHUTDOWN Voltage

V SHDN

VCC

Vdc

Operating Ambient Temperature

TA

0 to 80

°C

Operating Junction Temperature

TJ

−5.0 to 125

°C

Lead Temperature (Soldering, 10 seconds)

TL

300

°C

Storage Temperature Range

Tstg

−55 to 150

°C

Package Thermal Resistance, Junction to Ambient

R

θJA (Note 2)

159

°C/W

Thermal Resistance, Junction to Case

R

θJC

28

°C/W

1. ESD Ratings

ESD Machine Model protection up to 200 V, class B.

ESD Human Body Model protection up to 2000 V, class 2.

2. Minimum pad test board with 5 MIL wide and 2.8 MIL thick copper traces1 inch long.

3. All characterizing done with MTD3055VL N−Channel MOSFETs.