LTC4085 Ver la hoja de datos (PDF) - Linear Technology
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LTC4085 Datasheet PDF : 24 Pages
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LTC4085
ABSOLUTE MAXIMUM RATINGS
(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 (VCC + 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
PIN CONFIGURATION
TOP VIEW
IN 1
OUT 2
CLPROG 3
HPWR 4
SUSP 5
TIMER 6
WALL 7
14 BAT
13 GATE
12 PROG
15
11 CHRG
10 ACPR
9 VNTC
8 NTC
DE PACKAGE
14-LEAD (4mm s 3mm) PLASTIC DFN
TJMAX = 125°C, θJA = 40°C/W
EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC4085EDE#PBF
LTC4085EDE#TRPBF
4085
14-Lead (4mm × 3mm) Plastic DFN
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/
TEMPERATURE RANGE
–40°C to 85°C
ELECTRICAL CHARACTERISTICS The l indicates specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, VBAT = 3.7V, HPWR = 5V, WALL = 0V, RPROG = 100k,
RCLPROG = 2k, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
VIN
Input Supply Voltage
IN and OUT
4.35
5.5
VBAT
Input Voltage
BAT
4.3
IIN
IOUT
IBAT
VUVLO
∆VUVLO
Current Limit
Input Supply Current
IBAT = 0 (Note 7)
l
Suspend Mode; SUSP = 5V
l
Suspend Mode; SUSP = 5V, WALL = 5V, l
VOUT = 4.8V
0.5
1.2
50
100
60
110
Output Supply Current
VOUT = 5V, VIN = 0V, NTC = VNTC
l
0.7
1.4
Battery Drain Current
VBAT = 4.3V, Charging Stopped
l
Suspend Mode; SUSP = 5V
l
VIN = 0V, BAT Powers OUT, No Load
l
15
27
22
35
60
100
Input or Output Undervoltage Lockout VIN Powers Part, Rising Threshold
VOUT Powers Part, Rising Threshold
l 3.6
3.8
4
l 2.75 2.95 3.15
Input or Output Undervoltage Lockout VIN Rising – VIN Falling
130
or VOUT Rising – VOUT Falling
ILIM
IIN(MAX)
RON
Current Limit
Maximum Input Current Limit
ON Resistance VIN to VOUT
RCLPROG = 2k (0.1%), HPWR = 5V
RCLPROG = 2k (0.1%), HPWR = 0V
(Note 8)
IOUT = 100mA Load
l 475
500
525
l 90
100
110
2.4
215
2
UNITS
V
V
mA
μA
μA
mA
μA
μA
μA
V
V
mV
mA
mA
A
mΩ
4085fd
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