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參數(shù)資料
| 型號： | LTC1733 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Monolithic Linear Lithium-Ion Battery Charger with Thermal Regulation |
| 中文描述： | 單片線性鋰離子電池充電器與熱調(diào)節(jié) |
| 文件頁數(shù)： | 3/16頁 |
| 文件大小： | 169K |
| 代理商： | LTC1733 |
LTC1733
3
sn1733 1733fs
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
The Absolute Maximum BAT Current Rating of 1.6A is guaranteed
by design and current density calculations. The Absolute Maximum PROG
Current Rating is guaranteed to be 1/1000 of BAT current rating by design.
Note 3:
The LTC1733E is guaranteed to meet performance specifications
from 0
°
C to 70
°
C. Specifications over the –40
°
C to 85
°
C operating
SYMBOL
V
PROG
I
CHRG
V
CHRG
V
ACPR
V
FAULT
I
C/10
t
TIMER
V
RECHRG
PARAMETER
PROG Pin Voltage
CHRG Pin Weak Pulldown Current
CHRG Pin Output Low Voltage
ACPR Pin Output Low Voltage
FAULT Pin Output Low Voltage
End of Charge Indication Current Level
TIMER Accuracy
Recharge Battery Voltage Threshold
CONDITIONS
R
PROG
= 3k, I
PROG
= 500
μ
A; Current Mode
V
CHRG
= 1V
I
CHRG
= 5mA
I
ACPR
= 5mA
I
FAULT
= 5mA
R
PROG
= 3k
C
TIMER
= 0.1
μ
F
Battery Voltage Falling, SEL = 0V
Battery Voltage Falling, SEL = 5V
V
NTC
Falling
MIN
TYP
1.5
25
0.35
0.35
0.35
50
±
10
3.9
4.0
2.5
70
4.375
70
100
10
MAX
UNITS
V
μ
A
V
V
V
mA
%
35
65
V
V
V
V
NTC-HOT
V
HOT-HYS
V
NTC-COLD
V
COLD-HYS
V
NTC-DIS
V
DIS-HYS
V
SEL-IL
V
SEL-IH
T
LIM
NTC Pin Hot Threshold Voltage
NTC Pin Hot Hysteresis Voltage
NTC Pin Cold Threshold Voltage
NTC Pin Cold Hystersis Voltage
NTC Pin Disable Threshold Voltage
NTC Pin Disable Hystersis Voltage
SEL Pin Threshold Input Low
SEL Pin Threshold Input High
Junction Temperature in
Constant-Temperature Mode
Power MOSFET “ON” Resistance
mV
V
NTC
Rising
V
mV
mV
mV
V
NTC
Rising
0.3
V
V
1
105
°
C
R
ON
375
m
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 4:
Failure to solder the exposed backside of the package to the PC
board will result in a thermal resistance much higher than 40
°
C/W.
Note 5:
Supply current includes PROG pin current but does not include
any current delivered to the battery through the BAT pin.
ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C. V
CC
= 5V unless otherwise noted.
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