LTC4012-2 Linear Technology Corporation, LTC4012-2 Datasheet - Page 2

• Manufacturer Part Number: LTC4012-2
• Description: Multi-Chemistry Battery Charger
• Manufacturer: Linear Technology Corporation

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ABSOLUTE MAXIMUM RATINGS
LTC4012/
LTC4012-1/LTC4012-2
DCIN ........................................................... –14V to 30V
DCIN to CLP ................................................ –32V to 20V
CLP , CLN or SW to GND ............................. –0.3V to 30V
CLP to CLN ............................................................±0.3V
CSP , CSN or BAT to GND ............................ –0.3V to 28V
CSP to CSN ............................................................±0.3V
BOOST to GND ........................................... –0.3V to 36V
ORDER INFORMATION
LEAD FREE FINISH
LTC4012CUF#PBF
LTC4012CUF-1#PBF
LTC4012CUF-2#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
(Note 1)
2
LTC4012
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
INFET
DCIN
CLN
ACP
CLP
20-LEAD (4mm 4mm) PLASTIC QFN
1
2
3
4
5
T
JMAX
TAPE AND REEL
LTC4012CUF#TRPBF
LTC4012CUF-1#TRPBF
LTC4012CUF-2#TRPBF
20 19 18 17 16
6
= 125°C,
UF PACKAGE
TOP VIEW
7
21
8
JA
9 10
= 37°C/W
15
14
13
12
11
http://www.linear.com/leadfree/
CSP
CSN
PROG
ITH
BAT
PART MARKING
4012
40121
40122
http://www.linear.com/tapeandreel/
PIN CONFIGURATION
BOOST to SW............................................... –0.3V to 7V
SHDN, FVS0, FVS1 or V
ACP, CHRG or ICL to GND ......................... –0.3V to 30V
Operating Temperature Range
(Note 2) ........................................................ 0°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range ...................–65°C to 150°C
LTC4012-1
LTC4012-2
PACKAGE DESCRIPTION
20-Lead (4mm × 4mm) Plastic QFN
20-Lead (4mm × 4mm) Plastic QFN
20-Lead (4mm × 4mm) Plastic QFN
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
INFET
DCIN
CLN
CLP
ACP
20-LEAD (4mm 4mm) PLASTIC QFN
1
2
3
4
5
T
JMAX
20 19 18 17 16
6
UF PACKAGE
= 125°C,
TOP VIEW
FB
7
21
to GND ................ –0.3V to 7V
8
JA
9 10
= 37°C/W
15
14
13
12
11
TEMPERATURE RANGE
0°C to 85°C
0°C to 85°C
0°C to 85°C
CSP
CSN
PROG
ITH
BAT
4012f