ld7578h Leadtrend Technology, ld7578h Datasheet - Page 6

• Manufacturer Part Number: ld7578h
• Description: High Voltage Green-mode Pwm Controller With Over Temperature Protection
• Manufacturer: Leadtrend Technology

Electrical Characteristics
Leadtrend Technology Corporation
LD7578H-DS-00 February 2010
(T
Oscillator for Switching Frequency
Trembling Frequency
Modulation Frequency
Temp. Stability
Voltage Stability
Latch Protection ((-)LATCH Pin)
(-)LATCH Pin Source Current
Turn-On Trip Level
Turn-Off Trip Level
(-)LATCH pin de-bounce time
De-latch Vcc Level
Gate Drive Output (OUT Pin)
Output Low Level
Output High Level
Rising Time
Falling Time
OLP (Over Load Protection)
OLP Trip Level
Delay Time
De-latch Vcc Level
A
= +25
o
C unless otherwise stated, V
PARAMETER
www.leadtrend.com.tw
CC
=15.0V)
65KHz
Fsw=65KHz
(-20°C ~105°C)
(VCC=11V-25V)
(PDR, Power Down Reset)
VCC=15V, Io=20mA
VCC=15V, Io=20mA
Load Capacitance=1000pF
Load Capacitance=1000pF
Latch
Latch
Latch(PDR)
CONDITIONS
6
0.90
MIN
200
1.0
7.2
4.5
7.2
92
9
-
-
-
-
-
-
-
-
TYP
1.05
0.95
100
250
100
125
8.0
5.0
8.0
±4
86
30
5
1
-
-
LD7578H
MAX
1.00
108
300
160
8.8
1.1
8.8
5.5
60
1
-
-
-
-
-
-
UNITS
KHz
mS
Hz
μA
μS
nS
nS
%
%
V
V
V
V
V
V
V