OZ968

OZ968-SF-1.5

Page 3

PIN CONFIGURATION

Pin No.

Name

Description

1

FB

Current sense feedback.

2

CMP

Compensation for the current sense feedback.

3

SST

Soft start in two steps. Two-interval current sources of 50

µA and 0.6µA

provide 1:26.6 ratio between the two time intervals of soft start. Connect a

capacitor between this pin and the ground to adjust the soft-start timing.

4

ADJ

The output of the brightness D/A converter. The brightness has 32 adjust-

able levels. The default range is between 0.9V to 2.5V.

5

CNT

The output of the contrast D/A converter. The contrast has 256 levels from

0.8V to 2.8 V (8mV per step). This output has a current capability of up to

2mA.

6

RT

Timing resistor.

7

CT

Timing capacitor. CT and RT set the clock frequency. Fs = 1.60 / (RT * CT).

8

GND

Ground.

9

NDR

Gate drive output for the N-MOSFET.

10

PDR

Gate drive output for the P-MOSFET.

11

OVP

Over-voltage protection sense input.

12

SMBC

SMBus Clock Input/Output

13

SMBD

SMBus Data Input/Output.

14

VSEQ

Vee power sequence input.

15

SCP

Short-circuit protection sense input.

16

VDD

Supply voltage input.

ABSOLUTE MAXIMUM RATINGS

VDD

7.0 V

Logic inputs

-0.3 V to VDD+0.3 V

GND

+/- 0.3 V

Storage temp.

-55 to 150 oC

Operating temp.

0 to 70 oC

Operating junction temp.

150 oC

RECOMMENDED OPERATING RANGE

VDD

4.75 V to 5.25 V

Fosc

30 KHz to 100 KHz

Rt

50 K to 150 K