APW1172
Electrical Characteristics (Cont.)
The * denotes the specifications that apply over TA = -40 ~ 85oC. Typical values are at TA = 25oC.
VCC = 12V unless otherwise specified.
APW1172
Symbol
Parameter
Test condition
Unit
Min
Typ Max
Dynamic Characteristics
1.22 1.235 1.25
* 1.198 1.235 1.272
84
Voltage feedback
APW1172
FB
CC
O
V
4.8V < V < 22V, 20Ma < I < 2A
V
O
CC
OUT
Efficiency
V = 5V, V = 12V, I
= 1A
%
h
DC Characteristics
Iqop Total Operating Quiescent Current
*
12
10
mA
mA
mA
Iq
Quiescent Current
Duty Cycle = 0; VFB = 1.5V
VINH > 2.2V
*
*
50
80
100
150
Iqst-by Total Stand-by Quiescent Current
VCC = 22V; VINH > 2.2V
mA
Inhibit
Device ON
1.1
1.2
1.3
1.5
1.6
V
V
INH
V
INH Threshold Voltage
Device OFF
1.4
1
INH
V
INH Pull-Up Current
< 3V
m
A
Maximum INH Voltage
IINH = 0A
4.3
V
Error Amplifier
VOH High Level Output Voltage
VOL Low Level Output Voltage
IO source Source Output Current
O sink
VFB = 1V
3.5
3.8
V
V
VFB = 1.5V
0.4
4
VCOMP = 1.9V; VFB = 1V
200
1
300
1.5
2.5
2.1
mA
mA
mA
V
COMP
V
FB
I
Sink Output Current
Source Bias Current
Maximum FB Voltage
= 1.9V; V = 1.5V
IFB
VFB = 1.5V
FB
I
m
= 0 A
VFB = 1.255V to 1.215V, ICOMP =
-0.1mA to 0.1mA VCOMP = 1.9V
gm Trans-conductance
2.3
mA/V
SYNC Function
High Input Voltage
CC
REF
V
= 4.8 to 22V
2.5
V
V
V
Low Input Voltage
VCC = 4.8V to 22V
0.74
0.25
0.45
SYNC
V
= 0.74V
0.11
0.21
2.75
0.2
Slave Sink Current
mA
VSYNC = 2.33V
Master Output Amplitude
Output Pulse Width
ISOURCE = 3mA
3
V
No load, VSYNC = 1.65V
0.35
m
s
Copyright ã ANPEC Electronics Corp.
4
www.anpec.com.tw
Rev. A.4 - Aug., 2005
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
