RT9231A 데이터 시트보기 (PDF) - Richtek Technology

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RT9231A

Advanced PWM and Triple Linear Power Controller

Richtek Technology 

RT9231A

Absolute Maximum Ratings

z Supply Voltage

z PGOOD, FAULT and GATE Voltage

z Input, Output or I/O Voltage

z Ambient Temperature Range

z Junction Temperature Range

z Storage Temperature Range

z Lead Temperature (Soldering, 10 sec.)

z Package Thermal Resistance

SOP-28, θJA

+15V

GND−0.3V ~ VCC+0.3V

GND−0.3V ~ 7V

0°C ~ +70°C

0°C ~ +125°C

−65°C ~ +150°C

300°C

60°C/W

Recommended Operating Conditions

z Supply Voltage

z Ambient Temperature Range

z Junction Temperature Range

+12V±10%

0°C to 70°C

0°C to 125°C

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.

Electrical Characteristics

(VCC = 12V, PGND = 0V, TA = 25°C, Unless otherwise specified.)

Parameter

Symbol

Test Conditions

VCC Supply Current

Nominal Supply Current

UGATE, LGATE, DRIVE2,

ICC

DRIVE3, and DRIVE4 Open

Power-On Reset

VCC Rising Threshold

VCC Falling Threshold

Rising VAUX Threshold

VAUX Threshold Hysteresys

VOCSET = 4.5V

VOCSET = 4.5V

VOCSET = 4.5V

VOCSET = 4.5V

Rising VOCSET Threshold

DAC and Band Gap Reference

DAC (VID0-VID4) Input Low Voltage

DAC (VID0-VID4) Input High Voltage

DACOUT Voltage Accuracy

Band Gap Reference Voltage

VBG

Min Typ Max Units

-- 10 -- mA

7.5 -- 9.5 V

7

--

9

V

-- 2.8 --

V

-- 0.5 --

V

-- 1.25 --

V

-- -- 0.8 V

2.0 --

--

V

-1 --

1

%

1.240 1.265 1.290 V

To be continued

www.richtek.com

4

DS9231A-02 July 2001

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