Linear Technology LTC 4125, Manual

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LTC4125
2
4125f
For more information www.linear.com/LTC4125
pin conFiguraTion absoluTe MaxiMuM raTings
IN, IS
–
, CTD ............................................. –0.3V to 6V
IN1, IN2, IS
+
................................. –0.3V to V
IN
+ 0.3V
DTH, FTH, PTHM, FB ................... –0.3V to V
IN
+ 0.3V
NTC, EN , PTH1, PTH2, CTS.......... –0.3V to V
IN
+ 0.3V
IMON ................ –0.3V to MIN(V
IN
, V
IS
+, V
IS
–) + 0.3V
STAT ........................................... –0.3V to V
IN
+ 0.3V
STAT ......................................................–1mA to 2mA
Operating Junction Temperature Range
(Note 2) ............................................. –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
(Note 1)
20 19 18 17
7 8
TOP VIEW
21
GND
UFD20 PACKAGE
20-LEAD (4mm × 5mm) PLASTIC QFN
9 10
6
5
4
3
2
1
11
12
13
14
15
16
IN
CTS
IS
–
IS+
IMON
NTC
GND
EN
CTD
FB
PTHM
PTH1
IN1 SW1 SW2 IN2
DTH
STAT
FTH
PTH2
T
JMAX
= 125°C,
θ
JA
= 43°C/W
EXPOSED PAD (PIN 21) MUST BE CONNECTED TO GND
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4125EUFD#PBF LTC4125EUFD#TRPBF 4125 20-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C
LTC4125IUFD#PBF LTC4125IUFD#TRPBF 4125 20-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.