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LD7831GS Datasheet(PDF) 5 Page - Leadtrend Technology

Part # LD7831GS
Description  High Power Factor Primary Side Flyback LED Controller With HV Start-up
PDF  17 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7831GS Datasheet(HTML) 5 Page - Leadtrend Technology

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LD7831
5
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7831-DS-00 April 2014
Electrical Characteristics
(VCC=15.0V, TA = 25
C unless otherwise specified.)
PARAMETER
CONDITIONS
SYM
MIN
TYP
MAX
UNITS
High voltage Supply(HV Pin)
High-voltage current Source
VCC=0V , HV=80V
IHV_LO
1
1.4
1.8
mA
VCC=15V,HV=80V
IHV_HI
2.2
3
3.8
mA
Off-state Leakage current
VCC>UVLO(ON), HV=500V
IHV_OFF
0
30
A
Supply Voltage (VCC Pin)
Startup Current
VCC<UVLO ON
IST
-
160
250
A
Operating Current
(with 1nF load on OUT pin)
VCOMP=0V, ZCD=0
IOP_LO
-
0.8
1
mA
VCOMP=3V, ZCD=0
IOP_HI
-
1.3
1.6
mA
VCC OVP, UVP, CS short
IOP_OVP
0.3
0.5
-
mA
UVLO (off)
VUV_OFF
7
8
9
V
UVLO (on)
VUV_ON
16
18
20
V
HV Self Bias (Linear Regulator)
VLDO
8.5
9.5
10.5
V
De-Latch Voltage
PDR
VPDR
7
7.5
8
V
VCC OVP Level
VCC_OVP
26.5
28
29.5
V
CC Integrator (Comp Pin)
Comp open
VCMP
4.3
4.6
4.9
V
Zero On Time mode
VZOT
0.2
0.3
0.4
V
Reference Voltage
At CP condition
VREF
3.94
4
4.06
V
Current Sensing (CS Pin)
CS OCP Voltage
VOCP
0.80
0.85
0.9
V
Soft Start Time
*
TSS
-
10
-
ms
CS Short Protection
VCSSP
0.05
0.1
0.15
V
CS Short Protection De-bounce
Time
*
TCSSP
-
40
-
ms
LEB time
TLEB
150
300
450
ns



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