RT9607/A

3

DS9607/A-07 April 2011

www.richtek.com

Functional Pin Description

Pin No.

Pin Name

Pin Function

1

15

PWM1

Channel 1 PWM Input.

2

16

PWM2

Channel 2 PWM Input.

3

1

GND

Ground Pin.

4

2

LGATE1

Lower Gate Drive of Channel 1.

5

5

PVCC

Upper and Lower Gate Driver Power Rail.

6

4

PGND

Lower Gate Driver Ground Pin.

7

6

LGATE2

Lower Gate Drive of Channel 2.

8

7

PHASE2

Connect this pin to phase point of Channel 2.

Phase point is the connection point of high side MOSFET source

9

9

UGATE2

Upper Gate Drive of Channel 2.

10

10

BOOT2

Floating Bootstrap Supply Pin of Channel 2.

11

11

BOOT1

Floating Bootstrap Supply Pin of Channel 1.

12

12

UGATE1

Upper Gate Drive of Channel 1.

13

13

PHASE1

Connect this pin to phase point of Channel 1.

Phase point is the connection point of high side MOSFET source

14

14

VCC

Control Logic Power Supply.

--

3, 8

NC

No Connection.

--

Exposed Pad (17) GND

The exposed pad must be soldered to a large PCB and connected

to GND for maximum power dissipation.

Timing Diagram

PWM

UGATE

LGATE

t

pdhUGATE

t

pdlLGATE

t

pdlUGATE

t

pdhLGATE

90%

90%

2V

2V

2V

2V