UC3869H
Preliminary
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
36
UNIT
V
VDD DC Supply Voltage
High-Voltage Pin, HV
VDD Zener Clamp Voltage (Note 1)
VDD DC Clamp Current
FB Input Voltage
VDD
-0.3 ~ 500
VDD_Clamp+0.1
10
V
V
mA
V
-0.3 ~ 7
CS Input Voltage
-0.3 ~ 7
V
RT Input Voltage
-0.3 ~ 7
V
Operating Junction Temperature
Storage Temperature
TJ
-40 ~ +150
-55 ~ +160
°C
°C
TSTG
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.
RECOMMENDED OPERATING CONDITION
PARAMETER
SYMBOL
VDD
RATINGS
10 ~ 24
UNIT
V
VDD Supply Voltage
Operating Ambient Temperature
TA
-20 ~ +85
°C
ELECTRICAL CHARACTERISTICS (TA = 25°C, VDD=15V, unless otherwise noted)
PARAMETER
SYMBOL
IHV
TEST CONDITIONS
VDD=2V, HV=100V
MIN
TYP MAX UNIT
Supply Current from HV Pin
HV Pin Leakage Current After
Startup
0.75
mA
Leakage
V
DD=15V, HV=500V
10
μA
Supply Voltage (VDD)
V
DD=UVLO(OFF)-1V, Measure
VDD Start up Current
Istartup
2
15
μA
Leakage Current into VDD
Operation Current
I_VDD_Operation VFB=3V
VTHD(ON)
0.8
18
7
1.8
21
8
mA
V
Start Threshold Voltage
Min. Operating Voltage
VCC Zener Clamp Voltage
Over Voltage Protection
Voltage
16
6
VDD(MIN)
V
VCC(clamp)
IVDD=5mA
32
34
36
V
FB=4V Ramp up VDD Until
Gate Clock is Off
OVP(ON)
25
27
29
V
Feedback Input Section(FB Pin)
VFB Open Loop Voltage
PWM Input Gain ∆VFB / ∆VCS
VFB_Open
AVCS
5.4
3
V
V/V
Maximum Duty
Cycle
Max Duty Cycle
VFB=3.5V, VSENSE=0
70
78
90
%
Burst-Mode Out FB Voltage
Burst-Mode Enter FB Voltage
VFB(OUT)
VSENSE =0
1.5
V
V
VFB(IN)
VSENSE =0
1.35
Short FB Pin to GND
and Measure Current
FB Pin Short Circuit Current
IFB_Short
VTH_PL
240
4.2
μA
Power Limiting FB Threshold
Voltage
V
Power Limiting Debounce Time
OTP Threshold
TD_PL
T(THR)
60
88
120
mS
°C
150
UNISONIC TECHNOLOGIES CO., LTD
4 of 9
QW-R103-162.a
www.unisonic.com.tw