U9751B

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 6

www.unisonic.com.tw

QW-R103-034,A

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

+38

V

Differential Input Voltage

+20

V

Output Voltage

+38

V

Output Current

+450

mA

Maximum Junction Temperature

+150

℃

Operating Temperature

-20 ~ +85

℃

Storage Temperature

-55 ~ +150

℃

Note: 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.

DC ELECTRONIC CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Reference section

Internal Reference Voltage

2.40

2.46

2.53

V

V

3.5

mV

V

2

mV

-0.1%

±1%

-0.2%

±1%

Short-Circuit Output Current

18

22

30

mA

Undervoltage Lockout Section

2.5

2.8

3.2

V

Short-Circuit Protection Control Section

SCP Input Threshold Voltage

1.2

1.3

1.5

V

SCP Comparator Threshold Voltage

1.26

V

SCP Standby Voltage

No pull-up

110

220

mV

SCP Latched Input voltage

No pull-up

77

200

mV

Input (Source) Current

-1.5

-2.0

-2.5

µA

Oscillator Section

Frequency

f

400

Deviation of Frequency

△

f

10%

Frequency Regulation with Voltage

△

f/△V

1%

-0.4%

±2%

Frequency Regulation with Temperature

△

f/△T

-0.2%

±2%

Dead-time control section

Latched Input Voltage

1.9

V

Zero duty cycle

1.75

1.95

2.15

Maximum duty cycle

1.3

1.45

1.7

V

Input Bias Current

0.2

1

µA

Latch Mode (Source) Current

-620

µA

Error-Amplifier Section

Input Offset Voltage

±6

mV

Common-Mode Input Voltage Range

0.3

1.6

V

Positive Output Voltage Swing

V

Negative Output Voltage Swing

1

V

Input Offset Current

±100

nA