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AP2011 Scheda tecnica(PDF) 4 Page - Anachip Corp

Il numero della parte AP2011
Spiegazioni elettronici  Synchronous PWM with VFC Controller
PDF  9 Pages
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Produttore elettronici  ANACHIP [Anachip Corp]
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AP2011 Scheda tecnica(HTML) 4 Page - Anachip Corp

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AP2011
Synchronous PWM Controller
Anachip Corp
www.anachip.com.tw
Rev. 1.1 Apr 1, 2005
4/9
Typical Application Circuit
VIN
OCSET
VCC
PVCC
CAP
PGND
FB
NGATE
PHASE
PDRV
PGATE
SS/SHDN
Vout=5V
Lout
22u
R1
3K
R2
1K
Cin
470u
(50V)
VIN=10V~28V(10V~40V)
R4
6.8K
SGND
VREF
C1
100n
C2
1u(50V)
C3
300n
Q2
AF9410
(AF4410)
(9985)
Q1
AF9435
(AF4835)
(9563)
D1
Optional
D2
C4
0.1u
10n
(50V)
C5
47n
Cout
680u
10n
47n(50V)
Optional
R3
6.8 ohm
Cboost
C6
0.1u (50V)
VOUT= VFB× (1 +
R2
R1
)
VFB = 1.25V
R2 = 820 ~ 5.1K
Typical Performance Characteristics
PMOS: AF4835; NMOS: AF4410
Efficiency (Vout=5V)
80
85
90
95
01
23
45
Iout (A)
Vin=12V
Vin=30V
Vin=20V
PMOS: AP9563; NMOS: AP9985
Efficiency (Vout=5V)
70
75
80
85
01
234
5
Iout (A)
Vin=40V



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