AS3696

austriamicrosystems

www.austriamicrosystems.com

Rev 1.10 / 1011-04-04

10 - 16

5

Pinout and Packaging

5.1

Pinout QFN32, TQFP32

Pin

Nr

Pin

Name

QFN Package

Pin

Name

TQFP package

Pin

Type

Description

1

D1

D1

AIO

Connect to Drain of external Transistor

2

G1

G1

AIO

Connect to Gate of external Transistor

3

V2_5

V2_5

AIO

Supply output. Connect 2.2uF bypass capacitor to GND

4

Vfb

Vfb

AIO

Trip point voltage for outputs D1 – D4

5

Vduty

Vduty

AIO

Analog duty cycle control input

6

FB12

FB12

AIO

Power supply feedback output1 and output2

7

FB34

FB34

AIO

Power supply feedback output3 and output4

8

Vref

VSS

AIO

Reference voltage output (QFN ), VSS ( TQFP )

9

Vset1

Vset1

AIO

Reference voltage input in normal mode

10

Vset2

Vset2

AIO

Reference voltage input in 3D mode

11

Rosc

Rosc

AIO

Resistor of RC-oscillator

12

Cosc

Cosc

AIO

Capacitor of RC-oscillator

13

PWM

PWM

DI-PD

PWM input

14

3D_Mode

3D_Mode

DI-PD

Mode select input

15

3D_PWM12

3D_PWM12

DI-PD

PWM input in 3D Mode for channel1 and channel2

16

3D_PWM34

3D_PWM34

DI-PD

PWM input in 3D Mode for channel3 and channel4

17

SEL

SEL

DI-PD

PWM input select in normal mode

18

SEL_PPtrim

SEL_PPtrim

DI-PD

Connect to VSS. This pin is used for factory trimming.

19

xFAULT

xFAULT

DO-OD

Fault output. Active low

20

xPD

xPD

DI-PU

Power down input. Active low

21

Vshort

Vshort

AIO

Short LED detection threshold voltage

22

VDD

VDD

AIO

Shunt voltage regulator input.

23

G4

G4

AIO

Connect to Gate of external Transistor

24

D4

D4

AIO

Connect to Drain of external Transistor

25

S4

S4

AIO

Connect to Source of External Transistor and to Resistor RSET

26

S3

S3

AIO

Connect to Source of External Transistor and to Resistor RSET

27

D3

D3

AIO

Connect to Drain of external Transistor

28

G3

G3

AIO

Connect to Gate of external Transistor

29

G2

G2

AIO

Connect to Gate of external Transistor

30

D2

D2

AIO

Connect to Drain of external Transistor

31

S2

S2

AIO

Connect to Source of External Transistor and to Resistor RSET

32

S1

S1

AIO

Connect to Source of External Transistor and to Resistor RSET

EP

VSS

AIO

Exposed PAD. Connect to VSS ( QFN )

5.2

Pinout SOIC28

Pin

Nr

Pin

Name

SOIC Package

Pin

Type

Description

1

G2

AIO

Connect to Gate of external Transistor

2

D2

AIO

Connect to Drain of external Transistor

3

S2

AIO

Connect to Source of External Transistor and to Resistor RSET

4

S1

AIO

Connect to Source of External Transistor and to Resistor RSET

5

D1

AIO

Connect to Drain of external Transistor

6

G1

AIO

Connect to Gate of external Transistor

7

V2_5

AIO

Supply output. Connect 2.2uF bypass capacitor to GND

8

Vfb

AIO

Trip point voltage for outputs D1 – D4

9

FB12

AIO

Power supply feedback output1 and output2

10

FB34

AIO

Power supply feedback output3 and output4

11

Vset1

AIO

Reference voltage input in normal mode

12

Vset2

AIO

Reference voltage input in 3D mode