LTC1731-4.1 データシートの表示（PDF） - Linear Technology
部品番号
コンポーネント説明
メーカー
LTC1731-4.1 Datasheet PDF : 12 Pages
| |||
LTC1731-4.1/LTC1731-4.2
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 6V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VASD
VDIS
IPROG
VPROG
ICHRG
VCHRG
IC/10
tTIMER
VCLAMP
Automatic Shutdown Threshold Voltage
Voltage Mode Disable Threshold Voltage
PROG Pin Current
PROG Pin Load Regulation
PROG Pin Voltage
CHRG Pin Weak Pull-Down Current
CHRG Pin Output Low Voltage
End of Charge Indication Current Level
TIMER Accuracy
DRV Pin Clamp Voltage
(VCC – VBAT) High to Low
(VCC – VBAT) Low to High
VDIS = VCC – VTIMER
Internal Pull-Up Current, No RPROG
PROG Pin Source Current, ∆VPROG ≤ 5mV
RPROG =19.6k
VCHRG = 1V
ICHRG = 5mA
RPROG = 19.6k, RSENSE = 0.2Ω
CTIMER = 0.1µF
VCLAMP = VCC – VDRV, IDRIVE = 50µA
30 54 90
mV
40 69 100
mV
q
0.4
V
2.5
µA
q 300
µA
2.457
V
50 100 150
µA
0.6 1.2
V
q 25 50 100
mA
10
%
6.5
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC1731E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the – 40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. Guaranteed I grade parts are available,
consult factory.
TYPICAL PERFOR A CE CHARACTERISTICS
Trickle Charge Current
vs Input Supply
60
RPROG = 19.6k
RSENSE = 0.2Ω
VBAT = 2V
55 TA = 25°C
Program Pin Voltage
vs Temperature
2.470
VCC = 6V
RPROG = 19.6k
2.465
Timer Accuracy vs Temperature
110
VCC = 6V
CTIMER = 0.1µF
105
50
2.460
100
45
2.455
95
40
2.450
4
6
8
10
12
–50 –25 0 25 50 75 100 125 150
90
–50 –25 0 25 50 75 100 125 150
VCC (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
1731 G01
1731 G02
1731 G03
3
Share Link: 