ld7522 Leadtrend Technology, ld7522 Datasheet - Page 5

• Manufacturer Part Number: ld7522
• Description: Smart Green-mode Pwm Controller With Multiple Protections
• Manufacturer: Leadtrend Technology

Electrical Characteristics
Leadtrend Technology Corporation
LD7522-DS-03 January 2008
(T
Supply Voltage (VCC Pin)
Startup Current
Operating Current
(with 1nF load on OUT pin)
UVLO (off)
UVLO (on)
Voltage Feedback (Comp Pin)
Short Circuit Current
Green Mode Threshold VCOMP
Current Sensing (CS Pin)
Maximum Input Voltage, V
Leading Edge Blanking Time
Input impedance
Delay to Output
Gate Drive Output (OUT Pin)
Output Low Level
Output High Level
Rising Time
Falling Time
Oscillator
Frequency
Green Mode Frequency
Frequency Temp. Stability
Frequency 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
A
= +25
Note 1: When OVP, OLP, or Latch Protection is tripped.
Note 2: Guaranteed by design because Vcs(off) can’t be measured when V
o
C unless otherwise stated, V
PARAMETER
CS(OFF)
www.leadtrend.com.tw
CC
=15.0V)
V
V
Protection Mode (note 1)
V
V
V
V
V
V
Load Capacitance=1000pF
Load Capacitance=1000pF
(-40°C –85°C)
(VCC=12V-30V)
(PDR, Power Down Reset)
COMP
COMP
COMP
BNO
BNO
BNO
CC
CC
=15V, Io=20mA
=15V, Io=20mA
=0V (note 2)
=1.30V
=3.75V
=0V
=3V
=0V
CONDITIONS
5
BNO
=0V.
0.800
0.748
0.650
15.0
2.40
MIN
100
9.0
9.0
3.3
6.8
60
92
1
0.850
0.798
0.700
TYP
10.0
16.0
2.35
3.50
2.50
350
150
100
3.5
3.0
0.7
2.5
8.0
20
50
30
65
20
LD7522
0.900
0.848
0.750
MAX
11.0
17.0
2.60
160
108
5.0
4.0
1.0
3.7
8.7
35
60
70
1
3
UNITS
KHz
KHz
MΩ
mA
mA
mA
mA
μA
nS
nS
nS
nS
μA
μS
%
%
V
V
V
V
V
V
V
V
V
V
V