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UC1108 Scheda tecnica(PDF) 3 Page - Unisonic Technologies

Il numero della parte UC1108
Spiegazioni elettronici  LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER
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Produttore elettronici  UTC [Unisonic Technologies]
Homepage  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UC1108 Scheda tecnica(HTML) 3 Page - Unisonic Technologies

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UC1108
Preliminary
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 8
www.unisonic.com.tw
QW-R103-098.a
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Voltage at VCC Pin to GND
-0.3~36
V
Voltage at CS, OUT to GND
-0.3~7
V
FB Input
-40~10
V
Output Current at OUT
Internally limited
A
Operating Junction Temperature
TOPR
150
°C
Storage Temperature
TSTG
-65~150
°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.
THERMAL RESISTANCES CHARACTERISTICS
PARAMETER
SYMBOL
RATING
UNIT
Junction to Ambient
θJA
190
°C/W
ELECTRICAL CHARACTERISTICS (VCC=15V, TA=25°C, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX
UNIT
UVLO SECTION
Start-Up Threshold
VTH (ST)
17
18.5
21
V
Minimal Operating Voltage
VOPR(min)
8.2
9.2
10.2
V
Reference Voltage
BIAS Pin Voltage
VBIAS
RBIAS=200kΩ, After Turn On
1.0
1.1
1.2
V
STANDBY CURRENT SECTION
Start-Up Current
IST
VCC=VTH (ST)-0.5V,
RBIAS=200kΩ,Before Start-Up
0.6
µA
Operating Current
ICC(OPR) RBIAS=200kΩ
390
480
µA
DRIVE OUTPUT SECTION
OUT Maximum Current Source
IOUT
RBIAS=200kΩ
28
36
44
mA
CURRENT SENSE SECTION
Current Sense Threshold
VCS
490
513
535
mV
Pre-Current Sense
VCS(PRE)
390
413
435
mV
Leading Edge Blanking
500
ns
FEEDBACK INPUT SECTION
Feedback Pin Input Leakage Current
IFB
VFB=4V
1.8
2.4
3.0
µA
Feedback Threshold
VFB
3.97
4.03
4.09
V
Enable Turn-on Voltage
VFB(EN)
-2.0
-1.7
-1.4
V
OUTPUT VOLTAGE COMPENSATION SECTION
CPR Voltage
VCPR
Dons (Tons/T): From 55% to 0.02%
1.5
3.5
V
CPR Sink Current
ICPR
200
µA
PROTECTION SECTION
Over Voltage Protection
VFB(OVP)
7
8
9
V


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