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LTC4150IMS Datasheet

  • LTC4150IMS

  • Coulomb Counter/ Battery Gas Gauge

  • 137.44KB

  • 12页

  • LINER

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LTC4150
Coulomb Counter/
Battery Gas Gauge
FEATURES
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DESCRIPTIO
Indicates Charge Quantity and Polarity
卤50mV
Sense Voltage Range
Precision Timer Capacitor or Crystal Not Required
2.7V to 8.5V Operation
High Side Sense
32.55Hz/V Charge Count Frequency
1.5碌A Shutdown Current
10-Pin MSOP Package
APPLICATIO S
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The LTC
庐
4150 measures battery depletion and charging in
handheld PC and portable product applications. The de-
vice monitors current through an external sense resistor
between the battery鈥檚 positive terminal and the battery鈥檚
load or charger. A voltage-to-frequency converter trans-
forms the current sense voltage into a series of output
pulses at the interrupt pin. These pulses correspond to a
fixed quantity of charge flowing into or out of the battery.
The part also indicates charge polarity as the battery is
depleted or charged.
The LTC4150 is intended for 1-cell or 2-cell Li-Ion and
3-cell to 6-cell NiCd or NiMH applications.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Battery Chargers
Palmtop Computers and PDAs
Cellular Telephones and Wireless Modems
TYPICAL APPLICATIO
Integral Nonlinearity, % of Full Scale
R
SENSE
CHARGER
LOAD
4.7碌F
R
L
SENSE
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SENSE
+
V
DD
C
F+
INT
4.7碌F
C
F鈥?/div>
LTC4150
CLR
POL
GND
SHDN
4150 TA01a
0.5
0.4
0.3
R
L
+
ERROR (% FULL SCALE)
0.2
0.1
0
鈥?.1
鈥?.2
鈥?.3
鈥?.4
鈥?.5
鈥?0
鈥?5
0
25
CURRENT SENSE VOLTAGE (mV)
50
CHG
DISCHG
碌P
U
4150 TA01b
U
U
4150fa
1

LTC4150IMS 产品属性

  • LTC4150

  • 50

  • 集成电路 (IC)

  • PMIC - 电池管理

  • -

  • 燃料，电量检测计/监控器

  • 锂离子，镍镉，镍氢

  • 2.7 V ~ 8.5 V

  • -40°C ~ 85°C

  • 表面贴装

  • 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）

  • 10-MSOP

  • 管件

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