AP435 Просмотр технического описания (PDF) - Anachip Corporation
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AP435 Datasheet PDF : 5 Pages
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Dual Linear Controller With Shutdown
AP435/435L
( Preliminary )
Voltage reference
Symbol
Parameter
Conditions
VREF Reference input voltage
ΔVREF
Reference input voltage
deviation over
Temperature range
AP435
TAMB=25OC
TMIN<TAMB<TMAX
AP435L
TAMB=25OC
TMIN<TAMB<TMAX
VKA=VREF,IK=10mA
TMIN<TAMB<TMAX
IMIN
Minimum cathode current
for regulation
VKA=VREF
Ik
Cathode Current
│ZKA│
Dynamic impedance
(note1)
VKA=VREF
ΔIK=1~100mA , f=0
Note 1： The dynamic impedance is defined as│ZKA│=ΔVKA/ΔIK
Min.
1.237
1.225
1.245
1.237
Typ.
1.25
3.0
0.15
0.2
0.2
Max.
1.263
1.275
1.255
1.263
20
0.3
1
0.5
Unit
V
mV
mA
mA
Ω
Shutdown control
Symbol
Parameter
VSDL
VSDH
ISD
Threshold voltage
Current in shutdown mode
Conditions
Active mode
Shutdown mode
Min.
0.8
Typ.
Max.
0.2
Unit
V
V
uA
Typical Application Circuit
3.3V
22uF
FB1
12V
VCC
NMOS1
2.5V
22uF
R1=1K
R2=1K
OUT1
GND
AP435
Error
Amp1
VCC
10K
Error
Amp2
Vref
5V
22uF
FB2
NMOS2
OUT2
3.3V
R3=2.64K
SD1
22uF
ON/OFF
Input
SD2
R4=1K
Anachip Corp.
www.anachip.com.tw
Rev.0B Dec.02, 2002
3/5
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