LD7535A 查看數據表（PDF） - Unspecified
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LD7535A Datasheet PDF : 19 Pages
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LD7535/LD7535A
Electrical Characteristics
(TA = +25oC unless otherwise stated, VCC=15.0V)
PARAMETER
CONDITIONS
Supply Voltage (Vcc Pin)
Startup Current
Operating Current
(with 1nF load on OUT pin)
VCOMP=0V
VCOMP=3V
Protection tripped (OLP, OVP)
UVLO (off)
UVLO (on)
OVP Level
LD7535
LD7535A
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, Vcs(off)
Leading Edge Blanking Time
Input impedance
Delay to Output
Oscillator (RT pin)
Frequency
RT=100KΩ
Green Mode Frequency
Fs=65KHz
Temp. Stability
(-40°C ~105°C)
Voltage Stability
(VCC=11V-25V)
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
OLP (Over Load Protection)
OLP Trip Level
OLP Delay Time (note)
VCOMP(OLP)
Fs=65KHz
MIN
TYP
MAX UNITS
8
20
μA
2.0
3.0
mA
2.5
mA
0.5
mA
9.0
10.0
11.0
V
15.0
16.0
17.0
V
26.5
28.0
29.5
V
19.5
21.0
22.5
V
1.5
2.2
mA
6.0
V
2.35
V
0.80
0.85
0.90
V
350
nS
1
MΩ
100
nS
60
65
70
KHz
20
KHz
3
%
1
%
1
V
8
V
50
200
nS
30
100
nS
5.0
V
60
mS
Note: The OLP delay time is proportional to the period of switching cycle. So that, the lower RT value will set the higher switching
frequency and the shorter OLP delay time.
6
Leadtrend Technology Corporation www.leadtrend.com.tw
LD7535&LD7535A-DS-01c December 2007
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