ld7578j Leadtrend Technology, ld7578j Datasheet - Page 5

• Manufacturer Part Number: ld7578j
• Description: High Voltage Green-mode Pwm Controller With Over Temperature Protection
• Manufacturer: Leadtrend Technology

Electrical Characteristics
Leadtrend Technology Corporation
LD7578J-DS-00 March 2009
(T
High-Voltage Supply (HV Pin)
High-Voltage Current Source
Off-State Leakage Current
Supply Voltage (Vcc Pin)
Startup Current
Operating Current
(with 1nF load on OUT pin)
UVLO (off)
UVLO (on)
OVP Level
Voltage Feedback (COMP Pin)
Short Circuit Current
Open Loop Voltage
Green Mode Threshold VCOMP
Current Sensing (CS Pin)
Maximum Input Voltage,Vcs_off
Leading Edge Blanking Time
Input impedance
Delay to Output
A
= +25
o
C unless otherwise stated, V
PARAMETER
www.leadtrend.com.tw
CC
=15.0V)
V
V
V
V
OLP tripped, LD7578J
OVP tripped, LD7578J
(-)Latch Pin Tripped
LD7578J
V
COMP pin open
V
V
CC
CC
COMP
COMP
COMP
COMP
COMP
< UVLO(on), HV=500V
> UVLO(off), HV=500V
=0V, LD7578J
=3V, LD7578J
=0V
> 1.9
<1.9
CONDITIONS
5
15.0
26.5
0.80
MIN
0.5
9.0
1
1700
TYP
0.78
0.88
0.68
10.0
16.0
28.0
1.45
2.35
0.85
320
250
100
1.0
3.3
3.6
5.6
LD7578J
MAX
11.0
17.0
29.5
0.90
1.5
2.0
35
UNITS
MΩ
mA
mA
mA
mA
mA
mA
mA
μA
μA
nS
nS
nS
V
V
V
V
V
V