F72820

Jul 2007

V0.24P

-11-

F72820

7. Electrical Characteristic

Absolute Maximum Ratings

PARAMETER

SYMBOL

RATINGS

UNIT

IC supply voltage

VCC

7

V

Gate drivers supply voltage

12VCC

15

V

PWM controller outputs

UGATE, LGATE

V

Feedback voltages of both regulators

FB, FB2, COMP

GND - 0.3-17

V

ESD classification

HBM

2

kV

Maximum junction temperature (plastic package)

150

°C

Maximum storage temperature

-65 ~ 150

°C

Maximum lead temperature (soldering 10s)

260

°C

Note: If ICs are stressed beyond the limits listed in the “absolute maximum ratings”, they may be permanently destroyed. These are stress

ratings only and functional operation of the device at these or any other condition beyond those indicated under “recommended operating

conditions” is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability.

Package thermal information

PARAMETER

SYMBOL

SOIC

UNIT

Thermal resistance junction-ambient

Rth_ja

133

°C/W

DC and AC electrical characteristics

PARAMETER

SYMBOL

TEST CONDITIONS

MIN.

TYP.

MAX.

UNIT

VCC SUPPLY CURRENT/Regulated Voltage

Nominal supply current 5VCC

UGATE, LGATE and DRIVE2 open

2

4

mA

Regulated Voltage from BOOT

5.0

5.5

6

V

POWER-ON RESET

Rising VCC threshold

VOCSET = 4.5V

3.8

4.0

V

Falling VCC threshold

VOCSET1 = 4.5V

3.1

3.3

V

0.8

1.25

2.0

V

OSCILLATOR AND Protection

Free running frequency

250

300

350

kHz

Ramp Amplitude

1.75

*

FB Over Voltage Trip

FB Rising

1.0

1.1

1.2

V