L8565

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 13

www.unisonic.com.tw

QW-R114-004.d



ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

-0.3 ~ 22

V

FREQ Voltage

-0.3 ~ 7

V

-0.3 ~ 7

V

-24 ~ 7

V

±1

mA

-0.3 ~ 7

V

±1

mA

-0.3 ~ 7

V

GATE Voltage

-0.3 ~ 22

V

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.



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