RT9526

2

DS9526-01 April 2011

www.richtek.com

Function Pin Description

Pin No.

SOT-26-6

WDFN-8L 2x2 /

WDFN-8L 2x3

Pin Name

Pin Function

3

1

VIN

Supply Voltage Input. VIN can withstand up to 28V input.

--

2

PGB

Power Good Indicator. This pin connects to VIN with 10SL

N-MOSFET as power good condition.

1

3

CHG_SB

Charge Status Indicator Output (Open drain). Indicate low when

battery is charging; indicate high when battery charging finished or

any fault happened.

--

4

ENB

Charge Enable (Active Low). Connect this pin with 200k

Ω pull low

resistor.

2

5,

9 (Exposed Pad)

GND

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

connected to GND for maximum power dissipation.

6

6

IMIN

EOC Current Setting Pin.

5

7

ISET

Charge Current Set Point.

4

8

BATT

Battery Charge Current Output.

Typical Application Circuit

Marking Information

IMIN

CHG_SB

BATT

ENB

RT9526

VIN

Adapter or USB

GND

PGB

ISET

R1

R2

EN= : Product Code

DNN : Date Code

EX=DNN

JJ : Product Code

W : Date Code

04 : Product Code

W : Date Code

RT9526GE

RT9526GQW

RT9526GQWA

JJW

04W