RT9594AGQW 查看數據表（PDF） - Richtek Technology

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RT9594AGQW

MOSFET Integrated Smart Photoflash Capacitor Charger with IGBT Driver

Richtek Technology 

Function Block Diagram

VDRV

DRVOUT

AGND

CHARGE

FB

VDD

STAT

DRVIN

+

1V

-

Maximum

Off

SW

Sense

Enable

0.8V +

-

S

Q

R

Ipeak

OTP OCP

1V

+

-

RT9594A/B

VBAT

SW

PGND

VDOUT

CS

FBVD

Functional Pin Description

Pin No.

1

2

Pin Name

VBAT

Battery Voltage Pin.

CS

Input Current Setting Pin.

Pin Function

3

VDOUT Voltage Detector Output Pin. Open drain output.

4

FBVD

Voltage Detector Feedback Pin.

Charge Enable Pin. The charge function is executed when CHARGE pin is set

5

CHARGE from Low to High. The chip is in Shutdown mode when CHARGE pin is set to

Low.

6

DRVIN IGBT Driver Input Pin.

7

VDRV

IGBT Driver Power Pin.

8

DRVOUT IGBT Driver Output Pin.

9

AGND Analog Ground.

Charge Status Output. Open Drain output. When target output voltage is

10

STAT

reached, N-MOSFET turns on. This pin needs a pull up resistor.

11

FB

Feedback Voltage Pin.

12

13, 14

15, 16,

17 (Exposed Pad)

VDD

SW

PGND

Power Input Pin.

N-MOSFET Switching Node.

Power Ground. The exposed pad must be soldered to a large PCB and

connected to PGND for maximum power dissipation.

DS9594A/B-02 April 2011

www.richtek.com

3

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