LTC4040_15 Datasheet, PDF (2/26 Pages) Linear Technology – 2.5A Battery Backup Power Manager

LTC4040
Absolute Maximum Ratings
(Notes 1, 2)
V_IN (Transient) t < 1ms, Duty Cycle < 1%..... –0.3V to 7V
V_IN (Steady State), BAT, CLN, V_SYS,
BSTFB, NTC, OVSNS,
CHRG, PFO, RST, FAULT................................ –0.3V to 6V
F0, F1, F2, BSTOFF, RSTFB,
PFI, CHGOFF .......–0.3V to Max (V_IN, V_BAT, V_SYS) + 0.3V
I_OVSNS................................................................... ±10mA
I_CHRG, I_PFO, I_RST, I_FAULT...........................................10mA
I_PROG, I_CLPROG....................................................... 1.1mA
Operating Junction Temperature Range
(Note 3)....................................................... –40 to 125°C
Storage Temperature Range....................... –65 to 125°C
Pin Configuration
TOP VIEW
V_SYS 1
PROG 2
CLPROG 3
CHGOFF 4
BSTOFF 5
V_IN 6
CLN 7
24 23 22 21 20
19 PFI
18 BSTFB
17 NTC
25
GND
16 OVSNS
15 IGATE
14 F0
13 F1
8 9 10 11 12
UFD PACKAGE
24-LEAD (4mm × 5mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 43°C/W
EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC4040EUFD#PBF
LTC4040EUFD#TRPBF 4040
24-Lead (4mm × 5mm × 0.75mm) Plastic QFN –40°C to 125°C
LTC4040IUFD#PBF
LTC4040IUFD#TRPBF 4040
24-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 nonstandard 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/
4040fa
2
For more information www.linear.com/LTC4040