Datasheet

LTC4085
2
4085fd
(Notes 1, 2, 3, 4, 5)
Terminal Voltage
IN, OUT
t < 1ms and Duty Cycle < 1% ................... 0.3V to 7V
Steady State ............................................ 0.3V to 6V
BAT, CHRG, HPWR, SUSP, WALL, ACPR ..... 0.3V to 6V
NTC, TIMER, PROG, CLPROG .......0.3V to (V
CC
+ 0.3V)
Pin Current (Steady State)
IN, OUT, BAT (Note 6) ..............................................2.5A
Operating Temperature Range .................40°C to 85°C
Maximum Operating Junction Temperature ...........110°C
Storage Temperature Range .................. 65°C to 125°C
The l indicates specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 5V, V
BAT
= 3.7V, HPWR = 5V, WALL = 0V, R
PROG
= 100k,
R
CLPROG
= 2k, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Input Supply Voltage IN and OUT
4.35 5.5 V
V
BAT
Input Voltage BAT
4.3 V
I
IN
Input Supply Current I
BAT
= 0 (Note 7)
Suspend Mode; SUSP = 5V
Suspend Mode; SUSP = 5V, WALL = 5V,
V
OUT
= 4.8V
l
l
l
0.5
50
60
1.2
100
110
mA
μA
μA
I
OUT
Output Supply Current V
OUT
= 5V, V
IN
= 0V, NTC = V
NTC
l
0.7 1.4 mA
I
BAT
Battery Drain Current V
BAT
= 4.3V, Charging Stopped
Suspend Mode; SUSP = 5V
V
IN
= 0V, BAT Powers OUT, No Load
l
l
l
15
22
60
27
35
100
μA
μA
μA
V
UVLO
Input or Output Undervoltage Lockout V
IN
Powers Part, Rising Threshold
V
OUT
Powers Part, Rising Threshold
l
l
3.6
2.75
3.8
2.95
4
3.15
V
V
V
UVLO
Input or Output Undervoltage Lockout V
IN
Rising – V
IN
Falling
or V
OUT
Rising – V
OUT
Falling
130 mV
Current Limit
I
LIM
Current Limit R
CLPROG
= 2k (0.1%), HPWR = 5V
R
CLPROG
= 2k (0.1%), HPWR = 0V
l
l
475
90
500
100
525
110
mA
mA
I
IN(MAX)
Maximum Input Current Limit (Note 8) 2.4 A
R
ON
ON Resistance V
IN
to V
OUT
I
OUT
= 100mA Load 215
mΩ
PIN CONFIGURATION
1
2
3
4
5
6
7
14
13
12
11
10
9
8
BAT
GATE
PROG
CHRG
ACPR
V
NTC
NTC
IN
OUT
CLPROG
HPWR
SUSP
TIMER
WALL
TOP VIEW
15
DE PACKAGE
14-LEAD (4mm s 3mm) PLASTIC DFN
T
JMAX
= 125°C, θ
JA
= 40°C/W
EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4085EDE#PBF LTC4085EDE#TRPBF 4085
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/
ABSOLUTE MAXIMUM RATINGS
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS