LTC4052-42 데이터 시트보기 (PDF) - Linear Integrated System
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LTC4052-42 Datasheet PDF : 8 Pages
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LTC4052-4.2
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (VIN)....................................... 12V
BAT Voltage ...............................................– 0.3V to 12V
GATE (Note 2) .............................................– 0.3V to 8V
SENSE, TIMER .................................. – 0.3V to VIN +0.3V
CHRG, ACPR .............................................– 0.3V to 12V
SENSE, BAT Peak Current ...................................... 1.5A
Operating Temperature Range (Note 3) .. – 40°C to 85°C
Junction Temperature (Note 4) ............................. 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
SENSE 1
ACPR 2
VIN 3
GND 4
8 BAT
7 GATE
6 CHRG
5 TIMER
MSE EXPOSED PAD PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 35°C/W
EXPOSED PAD IS GROUND.
(MUST BE SOLDERED TO PCB).
ORDER PART
NUMBER
LTC4052EMS8E-4.2
MS8 PART MARKING
LTYY
Consult LTC Marketing for parts specified with wider operating temperature ranges.
DC ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 6V unless otherwise noted.
SYMBOL
VIN
IIN
VBAT
PARAMETER
Supply Voltage
Supply Current
Battery Float Voltage
VRECHRG Recharge Battery Voltage Threshold
VMARGIN
VIMAX
ITRICKL
VTRICKL
RDS(ON)
VBAT – VRECHRG Margin
Overcurrent Trip Voltage
Trickle Charge Current
Trickle Charge Trip Threshold
Internal Switch On-Resistance
VGATE
GATE Pin Voltage
TTIMER
ILEAK
VSLEEP
TIMER Period Accuracy
Battery Leakage Through Charger
Sleep Threshold
VACPR
I LEAKACPR
VCHRG
I LEAKCHRG
ICHRG
TSHDN
∆TSHDN
ACPR Pin Output Low Voltage
ACPR Pin Leakage Current
CHRG Pin Output Low Voltage
CHRG Pin Leakage Current
CHRG Pin Pull-Down Current
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
CONDITIONS
Wall Adapter Open Circuit Voltage
Fast Charge Mode
0°C ≤ TA ≤ 85°C
Battery Voltage Falling 0°C ≤ TA ≤ 85°C
VBAT = 2V
VBAT Rising
VBAT = 2.6V
VBAT = 4V
VBAT = 2.6V
VBAT = 4V
CTIMER = 0.1µF, Fast Charge Mode
VBAT = 4V, VIN = 0V
(VIN – VBAT) Low to High
(VIN – VBAT) High to Low
IACPR = 3mA
VIN = 0, VACPR = 6V
ICHRG = 3mA, Charging, C/10 Not Reached
VIN = 0, VCHRG = 6V
VCHRG = 1V, Charging, C/10 Reached
MIN
q 4.5
q
4.158
q 4.137
3.990
q 3.969
q 75
q 90
q 14
q 2.35
q
20
0
q
q
q
q
20
TYP
0.7
4.200
4.200
4.050
4.050
150
105
24
2.45
0.45
0.35
6.5
10.5
45
15
0.5
0.5
40
140
5
MAX
10
1.4
4.242
4.242
4.110
4.110
225
120
34
2.55
0.7
0.5
±10
1
70
0.8
1
0.8
1
70
UNITS
V
mA
V
V
V
V
mV
mV
mA
V
Ω
Ω
V
V
%
µA
mV
mV
V
µA
V
µA
µA
°C
°C
405242i
2
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