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LTC1729CS8-4.2 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC1729CS8-4.2
Description  Li-Ion Battery Charger Termination Controllers
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1729CS8-4.2 Datasheet(HTML) 3 Page - Linear Technology

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3
LTC1729 Series
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C, VIN = 8V.
LTC1729-4.1/LTC1729-4.2
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INTC
NTC Pin Current
VNTC = 1V
q
90
100
110
µA
VNTC-RESET
Thermistor Pin Reset Threshold
q
0.160
0.206
0.240
V
VNTC-HOT
Thermistor Pin Hot Hold Threshold
High Going Threshold
q
0.460
0.486
0.510
V
Low Going Threshold
q
0.380
0.405
0.430
V
VNTC-COLD
Thermistor Pin Cold Hold Threshold
High Going Threshold
q
2.70
2.79
2.90
V
Low Going Threshold
q
2.10
2.23
2.35
V
VOVP
OVP Pin Voltage
VBAT = 4.1V or VBAT = 4.2V
q
2.455
2.465
2.475
V
2.460
2.465
2.470
V
VOL-ST
Output Low Voltage-STATUS Pin
IO = 3mA
q
0.5
0.9
1.2
V
VOL-VC
Output Low Voltage-VC Pin
IO = 1mA
q
0.35
0.6
0.75
V
ISOFT
Status Soft Pull-Down Current
VSTATUS = 4.5V
q
40
50
65
µA
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C,
VIN = 12V
LTC1729-8.2/LTC1729-8.4
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
IVIN
VCC Supply Current
VIN = 9V (Below UVLO)
q
16
12
µA
VIN = 12V, 200µA Pull-Up on VBAT (9V) No Bat
q
1.0
1.4
2.0
mA
VIN = 12V, VBAT = 5V Trickle
10
17
21
mA
VIN = 12V, VBAT = 7V Charge
q
0.5
3.0
5.0
mA
VLKOH
VIN Undervoltage Lockout High
q
9.5
10.4
11.4
V
VLKOL
VIN Undervoltage Lockout Low
q
8.5
9.6
10.5
V
IVBAT
VBAT Current
VIN = 9V (Below UVLO), VBAT = 8.4V
q
–1
–0.1
1
µA
VIN = 12V, VBAT = 8.5V No Bat
q
60
95
140
µA
VIN = 12V, VBAT = 5V Trickle
– 19
– 16
– 9.5
mA
VIN = 12V, VBAT = 7V Charge
q
– 2.7
– 1.3
– 0.5
mA
VCLAMP
VBAT Clamp
No Bat (External 200
µA Pull-Up on VBAT)
q
8.5
9
9.5
V
VMAX
High VBAT Threshold
High Going Threshold
q
8.5
9.013
9.5
V
Low Going Threshold
q
8.5
9
9.5
V
VMIN
Low VBAT Threshold
High Going Threshold
q
5.1
5.4
5.7
V
Low Going Threshold
q
4.9
5.2
5.5
V
ISENSE
SENSE Pin Current
Charge State, VSENSE = 7V
q
85
100
115
µA
VC10
SENSE Pin C/10 Offset
Charge State, VC10 = (VBAT – VSENSE)
q
±1
±2.5
mV
INTC
NTC Pin Current
VNTC = 1V
q
90
100
110
µA
VNTC-RESET
Thermistor Pin Reset Threshold
q
0.160
0.206
0.240
V
VNTC-HOT
Thermistor Pin Hot Hold Threshold
High Going Threshold
q
0.460
0.486
0.510
V
Low Going Threshold
q
0.380
0.405
0.430
V
VNTC-COLD
Thermistor Pin Cold Hold Threshold
High Going Threshold
q
2.70
2.79
2.90
V
Low Going Threshold
q
2.10
2.23
2.35
V
VOVP
OVP Pin Voltage
VBAT = 8.2V or VBAT = 8.4V
q
2.455
2.465
2.475
V
2.460
2.465
2.470
V
VOL-ST
Output Low Voltage-STATUS Pin
IO = 3mA
q
0.5
0.9
1.2
V
VOL-VC
Output Low Voltage-VC Pin
IO = 1mA
q
0.35
0.6
0.75
V
ISOFT
Status Soft Pull-Down Current
VSTATUS = 4.5V
q
40
50
65
µA



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