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LTC1435AI Folha de dados(PDF) 18 Page - Linear Technology

Nome de Peças LTC1435AI
Descrição Electrónicos  High Efficiency Low Noise Synchronous Step-Down Switching Regulator
PDF  20 Pages
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Fabricante Electrônico  LINER [Linear Technology]
Página de início  http://www.linear.com
Logo LINER - Linear Technology

LTC1435AI Folha de dados(HTML) 18 Page - Linear Technology

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18
LTC1435A
TYPICAL APPLICATIONS
Constant-Current/Constant-Voltage High Efficiency Battery Charger
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TG
BOOST
SW
VIN
INTVCC
BG
PGND
EXTVCC
COSC
RUN/SS
ITH
SFB
SGND
VOSENSE
SENSE –
SENSE +
LTC1435A
1
2
3
4
8
7
6
5
AVG
PROG
VCC
PIN
SENSE
IOUT
GND
NIN
LT1620
C11
56pF
C9
100pF
D2
C14
1000pF
C10
100pF
C15
0.1
µF
C6
0.33
µF
C5
0.1
µF
C13
0.033
µF
E3
SHDN
R5
1k
C16
0.33
µF
E4
IPROG
*CONSULT CAPACITOR MANUFACTURER FOR RECOMMENDED
ESR RATING FOR CONTINUOUS 4A OPERATION
E5
GND
C18
0.1
µF
R6
10k
1%
RPROG
C17
0.01
µF
C12
0.1
µF
C4
0.1
µF
E3
GND
E1
VIN
D1
C7
4.7
µF
16V
L1
27
µH
C3
22
µF
35V
R1
0.025
Ω
E6
BATT
Q1
Si4412DY
Q2
Si4412DY
E7
GND
C8
100pF
R2
1M
0.1%
R4
76.8k
0.1%
JP1B
1435A TA06
+
R3
105k
0.1%
JP1A
C2*
22
µF
35V
R7
1.5M
C1*
22
µF
35V
+
+
Efficiency
BATTERY CHARGE CURRENT (A)
0
90
95
100
4
1435A TA05
85
80
75
1
2
3
5
VIN = 24V
VBATT = 16V
VBATT = 12V
VBATT = 6V
Current Programming Equation
IBATT =
(IPROG)(R6) – 0.04
10(R1)



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