lt3651-4.2 Linear Technology Corporation, lt3651-4.2 Datasheet - Page 2

• Manufacturer Part Number: lt3651-4.2
• Description: Monolithic 4a High Voltage Li-ion Battery Charger Features
• Manufacturer: Linear Technology Corporation

absoluTe MaxiMuM raTings
elecTrical characTerisTics
LT3651-4.2
(Note 1)
V
CLN, CLP , SHDN, CHRG,
FAULT, ACPR . .............................. V
CLP – CLN .............................................................±0.5V
SW ...........................................................................40V
SW – V
BOOST ......................................... SW + 10V Up to 50V
SENSE, BAT ............................................................ 10V
SENSE-BAT ............................................. –0.5V to 0.5V
TIMER, RNG/SS, I
Operating Junction Temperature Range
(Notes 2, 3) . ............................................... –40 to 125°C
Storage Temperature Range . ...................... –65 to 150°C
orDer inForMaTion
LEAD FREE FINISH
LT3651EUHE-4.2#PBF
LT3651IUHE-4.2#PBF
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
junction temperature range, otherwise specifications are at T
C
PARAMETER
V
V
V
V
V
Battery Float Voltage, V
Battery Recharge Voltage Hysteresis
Battery Precondition Threshold Voltage, V
Battery Precondition Threshold Hysteresis

IN
IN
IN
IN
IN
TIMER
IN
Operating Range
OVLO Threshold
OVLO Hysteresis
UVLO Threshold
UVLO Hysteresis
.......................................................................... 40V
= 0.68µF , R
IN
. .................................................................4.5V
T
= 50k, CLP = CLN = V
BAT(FLT)
LIM
, NTC, RT . ............................. 2.5V
TAPE AND REEL
LT3651EUHE-4.2#TRPBF
LT3651IUHE-4.2#TRPBF
BAT(PRE)
IN
IN
, BOOST – SW = 4V.
+ 0.5V Up to 40V
CONDITIONS
V
V
Threshold Voltage Relative to V
V
Threshold Voltage Relative to V
IN
IN
BAT
Rising
Rising
Rising
PART MARKING*
365142
365142
The
A
= 25°C (Note 2). V
l
denotes the specifications which apply over the full operating
pin conFiguraTion
BAT(FLT)
BAT(PRE)
PACKAGE DESCRIPTION
36-Lead (5mm × 6mm) Plastic QFN
36-Lead (5mm × 6mm) Plastic QFN
BOOST
SENSE
EXPOSED PAD (PIN 37) IS GND, MUST BE SOLDERED TO PCB
IN
ACPR
EXPOSED PAD (PIN 38) IS SW, MUST BE SOLDERED TO PCB
GND
NTC
BAT
SW
NC
NC
NC
= 20V, SHDN = 2V, SENSE = BAT = V
10
1
2
3
4
5
6
7
8
9
36-LEAD (5mm 6mm) PLASTIC QFN
36 35 34 33 32 31 30 29
11 12 13 14
T
l
l
l
l
JMAX
UHE PACKAGE
= 125°C, θ
TOP VIEW
MIN
4.18
4.16
4.8
37
38
32
15 16 17 18
JA
= 43°C/W
–105
TYP
1.1
4.6
0.2
4.2
2.9
35
70
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
28
27
26
25
24
23
22
21
20
19
I
SHDN
CHRG
FAULT
TIMER
GND
SW
NC
NC
NC
LIM
MAX
4.22
4.24
BAT(FLT)
4.8
32
40
,
365142f
UNITS
mV
mV
V
V
V
V
V
V
V