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UC3856L-AG6-R bảng dữ liệu(PDF) 4 Page - Unisonic Technologies

tên linh kiện UC3856L-AG6-R
Giải thích chi tiết về linh kiện  LOW COST POWER-SAVING MODE PWM CONTROLLER
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nhà sản xuất  UTC [Unisonic Technologies]
Trang chủ  http://www.utc-ic.com
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UC3856L-AG6-R bảng dữ liệu(HTML) 4 Page - Unisonic Technologies

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UC3856
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
4 of 10
www.unisonic.com.tw
QW-R103-077.F
ABSOLU T E M AX I M U M RAT I N GS (TA=25°C, VDD =15V, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VDD
35
V
Input Voltage to FB Pin
VFB
-0.3 ~ 7
V
Input Voltage to CS Pin
VSENSE
-0.3 ~ 7
V
Junction Temperature
TJ
+150
C
Operating Temperature
TOPR
-40 ~ +125
°C
Storage Temperature
TSTG
-50 ~ +150
C
Notes: 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
10 ~ 24
V
ELECT RI CAL CH ARACT ERI ST I CS (TA=25°C, VDD=15V, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
HV START
Supply Current from ST Pin
IST
0.75
mA
Start Pin Leakage Current After Startup
IEAKAGE
10
μA
SUPPLY SECTION
Start Up Current
ISTR
VDD=VDD(ON)-0.5V
2
15
μA
IC Operating current
IOP
VFB=3.5V
0.8
1.8
mA
Start Threshold Voltage
VTHD(ON)
17
19
21
V
Min. Operating Voltage
VDD(MIN)
6
7
8
V
VDD Over Voltage Protection
VDD_CLAMP
I_CLAMP=20mA
31
33
35
V
CONTROL SECTION
VFB Open Loop Voltage Level
VFB-OPEN
5.4
V
PWM Input Gain
AVCS
∆VFB/∆VCS
3
V/V
Burst-Mode Out FB Voltage
VFB(OUT)
VSENSE =0
1.5
V
Burst-Mode Enter FB Voltage
VFB(IN)
VSENSE =0
1.35
V
Normal
VFB=3.5V
60
65
70
KHz
Switch Frequency
Power-Saving
FSW
Before enter burst mode
20
KHz
Duty Cycle
DMAX
VFB=3.5V, VSENSE=0
70
78
90
%
Frequency Hopping
FJ(SW)
-9
+9
%
Frequency VDD Stability
FDV
VDD=12V~20V
10
%
Frequency Temperature Stability
FDT
T=-40~110°C
10
%
PROTECTION SECTION
VCC Over Voltage Protection Threshold
VOVP
25
27
29
V
FB PIN Over Load Protection Threshold
VOLP
4.2
V
Over Load Protection Delay-Time
TDelay
VFB=3~5V (OLP)
60
88
120
mS
OTP threshold
T(THR)
150
°C
CURRENT LIMITING SECTION
Peak Current Flat Threshold Voltage
VCS-F
0.92
V
Peak Current Valley Threshold Voltage
VCS-V
VFB=4.0V, Duty=0%
0.60
0.65
0.70
V
Lead Edge Blanking Time
TLEB
200
350
550
ns
Soft Start Time
SST
5
ms
DRIVER OUTPUT SECTION
Output Voltage Low State
VOL
VDD=16,IO=-20mA
1
V
Output Voltage High State
VOH
VDD=16,IO=20mA
11
V
Output Voltage Rise Time
tR
CL=1.0nF
150
ns
Output Voltage Fall Time
tF
CL=1.0nF
60
ns



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