SSL152x_1

© NXP B.V. 2008. All rights reserved.

Product data sheet

Rev. 01 — 15 September 2008

3 of 17

NXP Semiconductors

SSL152x

SMPS ICs for low power systems

6.

Block diagram

Pin numbers without parenthesis refer to DIP8 packages and within parenthesis refer to SO14 packages.

Fig 1.

Block diagram

014aaa563

PROTECTION

LOGIC

LOGIC

SUPPLY

SSL152x

VALLEY

RESET

THERMAL

SHUTDOWN

OSCILLATOR

stop

low freq

100 mV

0.75 V

0.5 V

blank

short circuit winding

overcurrent

10

×

2.5 V

F

1.8

U

1 (1)

2 (2, 3, 4,

5, 9, 10)

3 (6)

4 (7)

8 (14)

7 (12, 13)

6 (11)

5 (8)

DRAIN

n.c.

GND

SOURCE

AUX

REG

RC