ld7578j Leadtrend Technology, ld7578j Datasheet - Page 6

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

Electrical Characteristics
(T
Leadtrend Technology Corporation
LD7578J-DS-00 March 2009
A
= +25
PARAMETER
Oscillator for Switching Frequency
Frequency
Green Mode Frequency
Trembling Frequency
Temp. Stability
Voltage Stability
Latch Protection ((-)LATCH Pin)
(-)LATCH Pin Source Current
Turn-On Trip Level
Turn-Off Trip Level
De-latch V
Gate Drive Output (OUT Pin)
Output Low Level
Output High Level
Rising Time
Falling Time
OLP (Over Load Protection)
OLP Trip Level
OLP Delay Time
De-latch Vcc Level
o
C unless otherwise stated, V
CC
Level
CC
www.leadtrend.com.tw
=15.0V)
CONDITIONS
LD7578J
LD7578J
LD7578J
-20
(V
(PDR, Power Down Reset)
V
V
Load Capacitance=1000pF
Load Capacitance=1000pF
LD7578J, 65KHz-Auto recover
Latch(PDR)
CC
CC
CC
o
=15V, Io=20mA
=15V, Io=20mA
C~85
=11V-25V)
o
C
6
MIN
60.0
0.90
1.0
92
9
TYP
65.0
1.05
0.95
100
100
8.0
5.0
8.0
22
30
30
±4
LD7578J
MAX
70.0
1.00
108
160
1.1
60
5
1
1
UNITS
KHz
KHz
KHz
mS
μA
nS
nS
%
%
V
V
V
V
V
V
V