Datasheet

LTC4070
2
4070fc
absoluTe MaxiMuM raTings
I
CC
....................................................................... ±60mA
ADJ, NTC, NTCBIAS, DRV, LBO, HBO
Voltages ...........................................–0.3V to V
CC
+ 0.3V
Operating Junction Temperature Range .. –40°C to 125°C
(Notes 1, 2)
TOP VIEW
9
DDB PACKAGE
8-LEAD (3mm × 2mm) PLASTIC DFN
5
6
7
8
4
3
2
1NTCBIAS
NTC
ADJ
HBO
V
CC
DRV
LBO
GND
T
JMAX
= 125°C, q
JA
= 76°C/W
EXPOSED PAD (PIN 9) IS NOT INTERNALLY CONNECTED,
MUST BE SOLDERED TO PCB, GND TO OBTAIN q
JA
1
2
3
4
NTCBIAS
NTC
ADJ
HBO
8
7
6
5
V
CC
DRV
LBO
GND
TOP VIEW
9
MS8E PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 125°C, q
JA
= 40°C/W
EXPOSED PAD (PIN 9) IS NOT INTERNALLY CONNECTED,
MUST BE SOLDERED TO PCB, GND TO OBTAIN q
JA
pin conFiguraTion
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4070EDDB#PBF LTC4070EDDB#TRPBF LFPD 8-Lead (3mm × 2mm) Plastic DFN –40°C to 125°C
LTC4070IDDB#PBF LTC4070IDDB#TRPBF LFPD 8-Lead (3mm × 2mm) Plastic DFN –40°C to 125°C
LTC4070EMS8E#PBF LTC4070EMS8E#TRPBF LTFMT 8-Lead Plastic MSOP –40°C to 125°C
LTC4070IMS8E#PBF LTC4070IMS8E#TRPBF LTFMT 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/
Maximum Junction Temperature ......................... 125°C
Storage Temperature Range .................. –65°C to 150°C
Peak Reflow Temperature ..................................... 260°C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
FLOAT
Programmable Float Voltage
10µA ≤ I
CC
≤ 50mA
V
ADJ
= 0V
V
ADJ
= Float
V
ADJ
= V
CC
l
l
l
3.96
4.06
4.16
4.0
4.1
4.2
4.04
4.14
4.24
V
V
V
I
CCMAX
Maximum Shunt Current V
CC
> V
FLOAT
l
50 mA
I
CCQ
V
CC
Operating Current V
HBO
Low
l
450 1040 nA
I
CCQLB
Low Bat V
CC
Operating Current V
CC
= 3.1V 300 nA
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
junction temperature range. V
NTC
= V
CC
, 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)