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LTC4120 Datasheet(PDF) 21 Page - Analog Devices

Part # LTC4120
Description  7.5mA Wireless Li-Ion Charger with 1.2V Step-Down DC/DC Converter
PDF  24 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC4120 Datasheet(HTML) 21 Page - Analog Devices

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LTC4126
21
Rev. A
For more information www.analog.com
Full-Featured Application Circuit
Minimum Component Count Application Circuit
TYPICAL APPLICATIONS
VIN
4.75V TO 5.25V
LTX
6.5µH
CTX
100nF
AIR GAP
(2mm TO 4mm)
CRX
68nF
2.2µF
1.2V
ACIN
OUT
VSEL
GND
Li-Ion
4.2V
LTC4126
BAT
NTC
EN
RBIAS
100k
D1
RNTC
CHRG
VCC
GND
µP
V+
+
ACPR
STAT2
GPIO
STAT1
PUSHBUTTON
NTC RESISTOR
THERMALLY
COUPLED
WITH BATTERY
PBEN
4126 TA02
LRX
8µH
CTX: TDK C3216COG2A104J160AC
LTX: WURTH 760-308-101-104
RNTC: VISHAY NTCS0402E3104*HT
M1: VISHAY Si2312CDS-T1-GE3
D1: ROHM SEMICONDUCTOR SML-311UTT86
GND
LTC4125
1.5M
FB
IN1
IN2
NTC
CTD
CTS
PTHM
EN
FTH
DTH
IS–
IS+
IMON
PTH2
PTH1
IN
SW2
SW1
STAT
47µF
0.01µF
1.05k
20.5k
100k
100k
22m
17.8k
47µF
VIN
LTX
LRX
8µH
CRX
68nF
2.2µF
1.2V
TRANSMITTER
AIR GAP
ACIN
OUT
VSEL
GND
Li-Ion
4.2V
4126 TA04
LTC4126
BAT
NTC
+–
+
EN
CRX: AVX0603YC683JAT2A
LRX: SUNLORD MQQRC060630S8R0



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