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UC3800L-S08-R Datasheet(PDF) 4 Page - Unisonic Technologies

Part # UC3800L-S08-R
Description  LOW COST POWER-SAVING MODE PWM CONTROLLER
PDF  10 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UC3800L-S08-R Datasheet(HTML) 4 Page - Unisonic Technologies

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UC3800/B
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
4 of 10
www.unisonic.com.tw
QW-R103-083.d
ABSOLU T E M AX I M U M RAT I N GS (TA=25°C, VDD =16V, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VDD
30
V
Input Voltage to FB Pin
VFB
-0.3 ~ 6
V
Input Voltage to CS Pin
VSENSE
-0.3 ~ 6
V
Junction Temperature
TJ
+150
C
Operating Temperature
TOPR
-40 ~ +125
°C
Storage Temperature
TSTG
-50 ~ +150
C
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.
OPERAT I N G RAN GE
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VDD
9 ~ 24
V
T H ERM AL DAT A
PARAMETER
SYMBOL
RATINGS
UNIT
Junction to Ambient
θJA
150
°C/W
ELECT RI CAL CH ARACT ERI ST I CS (TA=25°C, VDD=16V，unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY SECTION
Supply current from HV Pin
IHV
HV=100V
0.6
mA
Start Up Current
ISTR
VDD = VDD(ON)-0.1V
2
15
μA
IC Operating current
IOP1
VFB=3.5V
0.8
1.8
mA
VDD Zener Clamp Voltage
VDD(CLAMP)
IDD=20mA
32
34
36
V
UNDER-VOLTAGE LOCKOUT SECTION
Start Threshold Voltage
VDD(ON)
16.5
18.5
21
V
Min. Operating Voltage
VDD(OFF)
6
7
8
V
Hysteresis
VDD(HY)
6
V
CONTROL SECTION
VFB Open Loop Voltage Level
VFB-OPEN
5.0
5.4
V
PWM Input Gain
AVCS
∆VFB/∆VCS
3
V/V
UC3800
1.1
V
The FB threshold enter burst mode
VFB(IN)
UC3800B
0.85
UC3800
1.2
V
The FB threshold exit burst mode
VFB(OUT)
UC3800B
0.9
Normal
VFB=3.5V, hopping Rang
60
65
70
KHz
Switch Frequency
Power-Saving
FSW
VFB=1.4V
19
KHz
Duty Cycle
DMAX
VFB=3.5V, VSENSE=0
70
78
85
%
Frequency Hopping
FJ(SW)
-9
+9
%
Frequency VDD Stability
FDV
VDD=12V~20V
5
%
Frequency Temperature Stability
FDT
T=-40~85°C
10
%
PROTECTION SECTION
VCC Over Voltage Protection Threshold
VOVP
VFB=3.5V
25
27
29
V
FB PIN Over Load Protection Threshold
VOLP
4.6
V
Over Load Protection Delay-Time
TDelay
60
88
120
mS
Soft start time
TSS
5
mS
OTP Level
TOTP
150
°C



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