UC3869G-S08-R datasheet(5/8 Pages) UTC

5 / 8 page

UC3869

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

5 of 8

www.unisonic.com.tw

QW-R103-110.c



ELECTRICAL CHARACTERISTICS (Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX

UNIT

Current Sense Input(CS Pin)

Soft Start Time

SST

Leading Edge Blanking Time

T_blanking

200

350

550

Peak Current Flat Threshold

Voltage

VCS-F

0.92

Peak Current Valley Threshold

Voltage

VCS-V

VFB=4.0V, Duty=0%

0.57

0.62

0.67

Oscillator

Normal Oscillation Frequency

FOSC

VDD=15V, FB=3V

KHZ

Frequency Jittering

△

f_OSC

-9

Frequency Temperature Stability

△

f_Temp

T=-40~85°C

Frequency Voltage Stability

△

f_VDD

Burst Mode Switch Frequency

F_Burst

KHZ

Gate driver

Output Low Level

VOL

VDD=15V, IO=20mA

Output High Level

VOH

VDD=15V, IO=20mA

Output Rising Time 1V~10V

T_r

CL=1000pF

150

Output Falling Time 10V~1V

T_f

CL=1000pF

Over temperature protection

Output Current of RT Pin

IRT

100

107

μA

Threshold Voltage for OTP

VTH_OTP

0.98

1.04

1.10

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