LD7552 查看數據表（PDF） - Unspecified
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LD7552 Datasheet PDF : 10 Pages
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Electrical Characteristics
(TA = +25oC unless otherwise stated, VCC=15.0V)
PARAMETER
CONDITIONS
Supply Voltage (Vcc Pin)
Startup Current
Operating Current
UVLO (off)
VCOMP=0V
VCOMP=3V
VCOMP=open
UVLO (on)
Voltage Feedback (Comp Pin)
Short Circuit Current
Open Loop Voltage
VCOMP=0V
COMP pin open
Green Mode Threshold VCOMP
Current Sensing (CS Pin)
Maximum Input Voltage
Leading Edge Blanking Time
Input impedance
Delay to Output
Oscillator (RT pin)
Frequency
RT=100K
Green Mode Frequency
Fs=66.5KHz
Temp. Stability
(-30 C ~85 C)
Voltage Stability
(VCC=12V-30V)
Gate Drive Output (OUT Pin)
Output Low Level
VCC=15V, Io=20mA
Output High Level
VCC=15V, Io=20mA
Rising Time
Load Capacitance=1000pF
Falling Time
Load Capacitance=1000pF
MIN
10.4
14.8
0.80
61.5
9
TYP
MAX UNITS
5
25
A
3
4
mA
2
mA
0.7
mA
11.4
12.4
V
16.0
17.5
V
2.2
3.0
mA
5.0
V
2.35
V
0.85
0.90
V
250
nS
50
K
300
nS
66.5
20
71.5 KHz
KHz
5
%
2
%
1
V
V
160
nS
60
nS
4
Leadtrend Technology Corporation
LD7552-DS-00 February, 2005
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