LTC1731-84 Просмотр технического описания (PDF) - Linear Technology
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LTC1731-84 Datasheet PDF : 12 Pages
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LTC1731-8.2/LTC1731-8.4
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VCC) ................................... 13.2V
SENSE, DRV, BAT, TIMER, PROG ............ – 0.3V to VCC
CHRG ..................................................... – 0.3V to 13.2V
Operating Temperature Range (Note 2) .....– 40° to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
BAT 1
CHRG 2
TIMER 3
GND 4
8 SENSE
7 VCC
6 DRV
5 PROG
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 200°C/W
ORDER PART
NUMBER
LTC1731EMS8-8.2
LTC1731EMS8-8.4
MS8 PART MARKING
LTSW
LTPE
Consult LTC Marketing for parts specified with wider operating temperature ranges.
TOP VIEW
BAT 1
CHRG 2
TIMER 3
GND 4
8 SENSE
7 VCC
6 DRV
5 PROG
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 125°C/W
ORDER PART
NUMBER
LTC1731ES8-8.2
LTC1731ES8-8.4
S8 PART MARKING
173182
173184
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 9V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VCC
Input Supply Voltage
ICC
Input Supply Current
Charger On, Current Mode
Shutdown Mode
Sleep Mode (Battery Drain Current)
q 8.8
12
V
q
1
3
mA
q
1
2
mA
15 30
µA
VBAT
Regulated Output Voltage
LTC1731-8.2 (9V ≤ VCC ≤ 12V)
LTC1731-8.4 (9V ≤ VCC ≤ 12V)
q 8.118 8.2 8.282
V
q 8.316 8.4 8.484
V
IBAT
Current Mode Charge Current
RPROG = 19.6k, RSENSE = 0.2Ω
RPROG = 19.6k, RSENSE = 0.2Ω
RPROG = 97.6k, RSENSE = 0.2Ω
465 500 535
mA
q 415 500 585
mA
70 100 130
mA
ITRIKL Trickle Charge Current
VBAT = 4V, RPROG = 19.6k, ITRIKL = (VCC – VSENSE)/0.2Ω q 30
50 100
mA
VTRIKL Trickle Charge Threshold Voltage
BAT Rising
q 4.7 4.95 5.1
V
VUV
VCC Undervoltage Lockout Voltage
VCC Rising
q
8.2 8.8
V
∆VUV
VCC Undervoltage Lockout Hysteresis VCC Falling
200
mV
VMSD
Manual Shutdown Threshold Voltage
PROG Pin Rising
PROG Pin Falling
2.457
V
2.446
V
IDRV
Drive Pin Current
VDRV = VCC – 2V
26
µA
2
sn1731 17318fs
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