Datasheet

LTC4071
2
4071fc
absoluTe MaxiMuM raTings
I
CC
, I
BAT
.............................................±60mA Continuous
I
BAT
...............................400mA for Single Pulse < 10ms
I
CC
............................... –400mA for Single Pulse < 10ms
ADJ, NTC, NTCBIAS, HBO Voltages .. –0.3V to V
CC
+ 0.3V
(Notes 1, 2)
TOP VIEW
9
GND
DDB PACKAGE
8-LEAD (3mm × 2mm) PLASTIC DFN
5
6
7
8
4
3
2
1NTCBIAS
NTC
ADJ
HBO
V
CC
BAT
GND
LBSEL
T
JMAX
= 125°C, θ
JA
= 76°C/W
EXPOSED PAD (PIN 9) IS NOT INTERNALLY CONNECTED,
MUST BE SOLDERED TO PCB, GND TO OBTAIN θ
JA
1
2
3
4
NTCBIAS
NTC
ADJ
HBO
8
7
6
5
V
CC
BAT
GND
LBSEL
TOP VIEW
9
GND
MS8E PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 40°C/W
EXPOSED PAD (PIN 9) IS NOT INTERNALLY CONNECTED,
MUST BE SOLDERED TO PCB, GND TO OBTAIN θ
JA
pin conFiguraTion
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4071EDDB#PBF LTC4071EDDB#TRPBF LFXF
8-Lead (3mm × 2mm) Plastic DFN
–40°C to 125°C
LTC4071IDDB#PBF LTC4071IDDB#TRPBF LFXF
8-Lead (3mm × 2mm) Plastic DFN
–40°C to 125°C
LTC4071EMS8E#PBF LTC4071EMS8E#TRPBF LTFXG 8-Lead Plastic MSOP –40°C to 125°C
LTC4071IMS8E#PBF LTC4071IMS8E#TRPBF LTFXG 8-Lead Plastic MSOP –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/
LBSEL Voltage ............................................. –0.3V to 6V
Operating Junction Temperature Range .. –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
Peak Reflow Temperature ..................................... 260°C
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
junction temperature range. Conditions are V
NTC
= V
ADJ
= V
CC
, V
LBSEL
= GND, T
A
= 25°C unless otherwise specified. Current into a pin
is positive and current out of a pin is negative. All voltages are referenced to GND unless otherwise noted. (Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
FLOAT
Programmable Float Voltage
10µA ≤ I
CC
≤ 25mA
V
ADJ
= 0V, 0°C < Temp < 125°C
V
ADJ
= 0V
l
3.96
3.88
4.0
4.0
4.04
4.04
V
V
V
ADJ
= Float, 0°C < Temp < 125°C
V
ADJ
= Float
l
4.06
3.98
4.1
4.1
4.14
4.14
V
V
V
ADJ
= V
CC
, 0°C < Temp < 125°C
V
ADJ
= V
CC
l
4.16
4.07
4.2
4.2
4.24
4.24
V
V
I
CCMAX
Maximum Shunt Current V
CC
> V
FLOAT
l
50 mA
I
CCQ
V
CC
Operating Current V
HBO
Low, ADJ = V
CC
l
550 1200 nA