Datasheet

LTC4155
3
4155fc
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
V
BUS
(Transient) t < 1ms, Duty Cycle < 1% ... –0.3V to 7V
V
BUS
(Steady State), BATSNS, IRQ, NTC ...... –0.3V to 6V
DVCC, SDA, SCL (Note 3) ........................–0.3V to V
MAX
I
WALLSNS
, I
USBSNS
............................................... ±20mA
I
NTCBIAS
, I
IRQ
.......................................................... 10mA
I
SW
, I
VOUT
, I
CHGSNS
(Both Pins in Each Case) ..............4A
Operating Junction Temperature Range ... –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
(Notes 1, 2)
9 10
TOP VIEW
29
GND
UFD PACKAGE
28-LEAD (4mm w 5mm) PLASTIC QFN
11 12 13
28 27 26 25 24
14
23
6
5
4
3
2
1
SDA
DVCC
IRQ
ID
CLPROG1
CLPROG2
WALLSNS
USBSNS
V
OUT
V
OUT
CHGSNS
CHGSNS
PROG
BATGATE
BATSNS
NTC
SCL SW SW V
BUS
V
BUS
V
BUS
USBGT
OVGCAP
WALLGT
V
C
V
OUTSNS
NTCBIAS
7
17
18
19
20
21
22
16
8
15
T
JMAX
= 125°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4155EUFD#PBF LTC4155EUFD#TRPBF 4155 28-Lead (4mm × 5mm × 0.75mm) Plastic QFN –40°C to 125°C
LTC4155IUFD#PBF LTC4155IUFD#TRPBF 4155 28-Lead (4mm × 5mm × 0.75mm) Plastic QFN –40°C to 125°C
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/