RT8101APS datasheet(5/15 Pages) RICHTEK

5 / 15 page

RT8101/A

Preliminary

DS8101/A-01 March 2007

www.richtek.com

Parameter

Symbol

Test Conditions

Min

Typ

Max

U nits

Ramp Amplitude

ΔVOSC

VCC = 12V

1.5

VP-P

Reference Voltage

PWM Error Amplifier Reference

VREF

0.792

0.8

0.808

Error Amplifier

Open Loop DC Gain

Gain-Bandwidth Product

GBW

MH z

Slew R ate

V/us

PWM Controller Gate Drivers (VCC = 12V)

Upper Gate Source

IUGATE

VBOOT − VPHASE = 12V,

VBOOT − VUGATE = 6V

300

Upper Gate Source

RUGATE

VBOOT − VPHASE = 12V,

VBOOT − VUGATE = 1V

Upper Gate Sink

RUGATE

VBOOT − VPHASE = 12V,

VUGATE − VPHASE = 1V

Lower Gate Source

ILGATE

VCC = 12V, VLGATE = 6V

500

Lower Gate Source

RLGATE

VCC − VLGATE = 1V

Lower Gate Sink

RLGATE

VLGATE = 1V

Protection

Under Voltage Protection

Measuring VFB

0.3

0.4

0.5

Over C urrent Threshold

VOC

Measuring VPHASE

−210 −250 −290

Soft-Start Interval

TSS

3.2

4.2

Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for

stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the

operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended

periods may remain possibility to affect device reliability.

Note 2. Devices are ESD sensitive. Handling precaution recommended.

Note 3. The device is not guaranteed to function outside its operating conditions.

Note 4.

θJA is measured in the natural convection at TA = 25°C on a high effective 4-layers thermal conductivity test board of

JEDEC 51-7 thermal measurement standard.

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