APW7077/A
(Cont.)
Electrical Characteristics
(for all values TA = 25°C, VOUT = 3.3V, unless otherwise noted)
APW7077
Typ
Symbol
Parameter
Test Condition
Unit
Min
Max
Step-Up Section
Minimum Operating Input
Voltage
VIN
0.7
1
V
Operating Voltage
Start-up Voltage
5.5
V
V
APW7077_33, Io<10mA
APW7077_33, 10mA<Io<100mA
APW7077_50, Io<10mA
APW7077_50, 10mA<Io<100mA
ILOAD = 10mA
0.9
1.1
0.9
1.1
0.7
300
88
V
V
V
VHOLD Hold Voltage
0.8
330
95
V
fSW
Operating Frequency
VOUT = 3.3VX96%
270
81
KHZ
%
DMAX Maximum Duty Cycle
Power MOSFET
VOUT = 3.3VX96%
£
ISOURCE EXT Output Source Current Duty 5%, EXT = 2.9V
-70
80
-110 -150
120 160
mA
mA
£
ISINK
EXT Output Sink Current
Duty 5%, EXT = 0.4V
Control Section
VOUT APW7077-33
APW7077-50
IIN = 0mA
IIN = 0mA
3.218 3.3 3.383
V
V
4.875
10
5
25
5.125
40
TSS
Soft-start Time
ms
V
Soft-start Threshold Voltage Duty = 50%
Soft-start Hysteresis Voltage
1.65
150
200
160
35
mV
m
A
VCE = VOUT, VOUT = 0.96VOUT
300
240
55
Iq
Operating Current
m
A
VCE = VOUT, VOUT = 1.04VOUT
VCE = VOUT, VOUT = 1.3VOUT
VCE = 0V
m
A
IOFF
Stand-by Current
Switch-off Current
Logic LOW (VIL)
m
A
1
2
VCE
0.7
V
V
Logic HIGH (VIH)
CE Pin Input Current
1.2
m
A
ICE
VCE = 0V
1
2
VCE = 2.0V
0.07
50
nA
Copyright ã ANPEC Electronics Corp.
5
www.anpec.com.tw
Rev. A.4 - Sep, 2005
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
