RT9230

www.richtek-ic.com.tw

DS9230-03 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-28,

60

°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

°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

VCC Supply Current

Nominal Supply Current

UGATE1, LGATE1, UGATE2,

DRIVE3, and DRIVE4 Open

--

10

--

mA

Power-on Reset

VCC Rising Threshold

7.5

--

9.5

V

VCC Falling Threshold

7--

9

V

Rising VAUX Threshold

--

2.8

--

V

VAUX Threshold Hysteresis

--

0.5

--

V

--

1.25

--

V

Oscillator

Free Running Frequency

180

200

225

kHz

Ramp Amplitude

--

1.9

--

To be continued