ld7576a Leadtrend Technology, ld7576a Datasheet - Page 5

• Manufacturer Part Number: ld7576a
• Description: Green-mode Pwm Controller With High-voltage Start-up Circuit And Adjustable Olp Delay Time
• Manufacturer: Leadtrend Technology

Electrical Characteristics
Leadtrend Technology Corporation
LD7576A-DS-00b November, 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
Leading Edge Blanking Time
Input impedance
Delay to Output
Oscillator for Switching Frequency
Frequency
Temp. Stability
Voltage Stability
Low Frequency Timer (CT Pin)
Low Frequency Period
Temp. Stability
Voltage Stability
A
= +25
o
C unless otherwise stated, V
PARAMETER
www.leadtrend.com.tw
CC
=15.0V)
Vcc< UVLO(on),HV=500V
Vcc> UVLO(off),HV=500V
V
V
OLP tripped
OVP tripped
OTP tripped
V
COMP pin open
(-40°C ~105°C)
(VCC=11V-25V)
CT=0.047μF
(-40°C ~105°C)
(VCC=11V-25V)
COMP
COMP
COMP
=0V
=3V
=0V
CONDITIONS
5
MIN
15.0
26.5
0.80
61.0
0.5
9.0
1
TYP
10.0
16.0
28.0
2.35
0.85
65.0
230
100
1.0
2.7
3.1
0.5
0.6
0.5
1.3
5.6
4.7
LD7576A
MAX
11.0
17.0
29.5
0.90
69.0
100
1.5
3.5
4.0
2.2
35
5
1
5
1
UNITS
KHz
MΩ
mA
mA
mA
mA
mA
mA
mA
mS
μA
μA
nS
nS
%
%
%
%
V
V
V
V
V
V