RT9228

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DS9228-03 July 2001

2

Absolute Maximum Ratings

Supply Voltage

+15V

PGOOD, FAULT and GATE Voltage

GND

Input, Output or I/O Voltage

GND

−0.3V to 7V

Ambient Temperature Range

0

°C to +70°C

Junction Temperature Range

0

°C to +125°C

Storage Temperature Range

−65°C to +150°C

Lead Temperature (Soldering, 10 sec.)

300

°C

Package Thermal Resistance

SOP-24,

75

°C/W

Recommended Operating Conditions

Supply Voltage

+12V

±10%

Ambient Temperature Range

0

°C to 70°C

Junction Temperature Range

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

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

VCC Supply Current

Nominal Supply Current

UGATE1, GATE3, LGATE1,

and VOUT2 Open

--

10

--

mA

Power-On Reset

VCC Rising Threshold

7.5

--

9.5

V

VCC Falling Threshold

7

--

9

V

Rising VIN2 Under-voltage Threshold

--

2.8

--

V

VIN2 Under-voltage Hysteresis

--

0.5

--

V

--

1.25

--

V

Oscillator

Free Running Frequency

180

200

225

kHz

Ramp Amplitude

--

1.9

--

To be continued