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LD7835GL датащи(PDF) 5 Page - Leadtrend Technology

номер детали LD7835GL
подробное описание детали  Non-isolation Buck Solution High Power Factor LED Controller
PDF  13 Pages
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производитель  LEADTREND [Leadtrend Technology]
домашняя страница  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7835GL датащи(HTML) 5 Page - Leadtrend Technology

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LD7835
5
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7835-DS-01 July 2015
Electrical Characteristics
( VCC =14.0V, TA = 25
C unless otherwise specified.)
PARAMETER
CONDITIONS
Symbol
MIN
TYP
MAX
UNITS
Supply Voltage (VCC Pin)
Startup Current
VCC=10V
IVCC_ST
-
-
10
A
Operating Current
(with 1nF load on OUT pin)
COMP=3V, ZCD=2V
IVCC_14
-
1
-
mA
Protection Tripped
(OVP, OTP)
IVCC_PRO
-
2
-
mA
UVLO (OFF)
VUV_OFF
7.7
8.2
8.7
V
UVLO (ON)
VUV_ON
15
16
17
V
VCC OVP Threshold
VCC_OVP
27
28
29
V
Compensation(COMP Pin)
gm
(1)
-
-
200
-
A/V
COMP Pin Open Voltage
VCMP
5
5.5
6
V
Programmable Max-On Time
Level 1, COMP =5V
TON_MAX1
-
15
-
s
Level 2, COMP =5V
TON_MAX2
-
21
-
s
Level 3, COMP =5V
TON_MAX3
-
29
-
s
Pre-charge voltage during
soft-start
(1)
VCMP_PRE
-
0.6
-
V
Current Sensing (CS Pin)
Reference voltage
Vref
0.194
0.2
0.206
V
OCP Threshold
(Cycle by Cycle)
VOCP
1.1
1.2
1.3
V
During soft-start
VOCP_SS
-
0.45
-
V
Soft-Start Time
TSS
12
16
20
ms
LEB time
TLEB
-
250
-
ns
Zero Current Detector (ZCD Pin)
Lower Clamp Voltage
VZCD_LC
-
0
-
V
ZCD OVP Threshold
VZCD_OVP
3.8
4
4.2
V
ZCD OVP Comparator
De-bounce
TDEB_OVP
-
1.6
-
s
Input Voltage Threshold
VZCD
-
0.6
-
V
Hysteresis
VZCD_HYS
-
0.4
-
V
ZCD Blanking Time
TZCD_BLK
1.5
2
2.5
s
Minimum (ON+OFF)-Time, FMAX
Minimum ON+OFF-Time
FS, MAX(150kHz)
TMIN
5.34
6.67
8
s
During Soft-Start
TMIN_SS
-
11
-
s



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