8565

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 13

www.unisonic.com.tw

QW-R114-004.b

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

-0.3 ~ 22

V

FREQ Voltage

-0.3 ~ 7

V

ICOMP Voltage

-0.3 ~ 7

V

ISENSE Voltage

-24 ~ 7

V

ISENSE Current

±1

mA

VSENSE Voltage

-0.3 ~ 7

V

VSENSE Current

±1

mA

VCOMP Voltage

-0.3 ~ 7

V

GATE Voltage

-0.3 ~ 22

V

ESD Protection (Note 2)

2

kV

Junction Temperature

-40 ~ 150

°C

Storage Temperature

-55 ~ 150

°C

Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

2. According to EIA/JESD22-A114-B (discharging a 100pF capacitor through a 1.5kΩ series resistor)

THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

90

K/W

ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

OPERATING RANGE

(Note 1)

21

V

Junction Temperature

-40

125

°C

SUPPLY SECTION

(Note 2)

10.5

11.2

11.9

V

Under Voltage Lock Out

9.4

10.2

10.8

V

0.8

1

1.3

V

50

100

200

µA

Operating Current With Active

GATE

13.5

18

22.5

mA

Operating Current During Standby

2.0

2.6

3.2

mA

VARIABLE FREQUENCY SECTION

Switching Frequency (Typical)

R5=33kΩ

106

133

161

kHz

Switching Frequency (Min.)

R5=82kΩ

40

56

70

kHz

Switching Frequency (Max.)

200

250

320

kHz

Voltage At FREQ Pin

2.40

2.50

2.60

V

PWM SECTION

Max. Duty Cycle

92

95

98

%

Min. Duty Cycle

0

%

Min. Off Time

250

350

ns