LD7575
Electrical Characteristics
(T
A
= +25 C unless otherwise stated, V
CC
=15.0V)
PARAMETER
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 (RT pin)
Frequency
Green Mode Frequency
Temp. Stability
Voltage Stability
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 (note)
Fs=65KHz
5.0
30
V
mS
VCC=15V, Io=20mA
VCC=15V, Io=20mA
Load Capacitance=1000pF
Load Capacitance=1000pF
8
50
30
200
100
1
V
V
nS
nS
RT=100KΩ
Fs=65.0KHz
(-40°C ~105°C)
(VCC=11V-25V)
60.0
65.0
20
3
1
70.0
KHz
KHz
%
%
1
100
0.80
0.85
350
0.90
V
nS
MΩ
nS
V
COMP
=0V
COMP pin open
1.5
6.0
2.35
2.2
mA
V
V
V
COMP
=0V
V
COMP
=3V
Protection tripped (OLP, OVP)
9.0
15.0
25.0
2.0
2.5
0.5
10.0
16.0
27.5
11.0
17.0
30.0
100
3.0
4.0
µA
mA
mA
mA
V
V
V
Vcc< UVLO(on)
Vcc> UVLO(off)
0.5
1.0
1.5
35
mA
µA
CONDITIONS
MIN
TYP
MAX
UNITS
o
Note: The OLP delay time is proportional to the period of switching cycle.
frequency and the shorter OLP delay time.
So that, the lower RT value will set the higher switching
5
Leadtrend Technology Corporation
LD7575-DS-01-PROMATE July 2005
ETC [ ETC ]
