RT9641BGS datasheet(4/11 Pages) RICHTEK

4 / 11 page

RT9641A/B

DS9641A/B-11 March 2007

www.richtek.com

Absolute Maximum Ratings

Supply Voltage (V5VSB) -------------------------------------------------------------------------------------- +7.0V

12V -------------------------------------------------------------------------------------------------------------- GND

−0.3V to +14.5V

DLA, DRV2 ----------------------------------------------------------------------------------------------------- GND

−0.3V to V12V+0.3V

All Other Pins ------------------------------------------------------------------------------------------------- GND

−0.3V to 5VSB+0.3V

Package Thermal Resistance

SOP-16,

θJA --------------------------------------------------------------------------------------------------- 100°C/W

Maximum Junction Temperature -------------------------------------------------------------------------- 150

°C

Maximum Storage Temperature Range -----------------------------------------------------------------

−65°C to 150°C

Maximum Lead Temperature (Soldering, 10 sec.) ---------------------------------------------------- 260

°C

Recommended Operating Conditions

Supply Voltage (V5VSB) -------------------------------------------------------------------------------------- +5V

±5%

Secondary Bias Voltage (V12V) ---------------------------------------------------------------------------- +12V

±10%

Digital Inputs (VS3, VS5, VEN3VDL, VEN5VDL) --------------------------------------------------------------- 0 to +5.5V

Junction Temperature Range ------------------------------------------------------------------------------- 0

°C to 125°C

Ambient Temperature Range ------------------------------------------------------------------------------- 0

°C to 70°C

Electrical Characteristics

CAUTION:

Stresses beyond the ratings specified in

“Absolute Maximum Ratings” may cause permanent damage to the device.

This is a stress only rating and operation of the device at these or any other conditions above those indicated in the

operational sections of this specification is not implied.

(VCC (12VIN) = 12V, GND = 0V, TA = 25°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

VCC Supply Current

Operating Supply Current

I5VSB

Shutdown Supply Current

I5VSB(OFF)

VSS = 0V, S3 = 0, S5 =0

Power-on Reset, Soft-start, and 12V Monitor

Rising 5VSB POR Threshold

2.5

Rising 12V Threshold

10.5

Soft-start Current

ISS

6.5

μA

Shutdown Soft-start Voltage

0.8

To be continued

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