Datasheet

LT1999-10/LT1999-20/
LT1999-50
24
1999fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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FAX: [phone]
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www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2010
LT 0312 REV B • PRINTED IN USA
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LT1787/
LT1787HV
Precision, Bidirectional High Side Current Sense Amplifier 2.7V to 60V Operation, 75μV Offset, 60μA Current Draw
LT6100 Gain-Selectable High Side Current Sense Amplifier 4.1V to 48V Operation, Pin-Selectable Gain:
10V/V, 12.5V/V, 20V/V, 25V/V, 40V/V, 50V/V
LTC6101/
LTC6101HV
High Voltage High Side Current Sense Amplifier 4V to 60V/5V to 100V Operation, External Resistor Set Gain, SOT23
LTC6102/
LTC6102HV
Zero Drift High Side Current Sense Amplifier 4V to 60V/5V to 100V Operation, ±10μV Offset, 1μs Step Response,
MSOP8/DFN Packages
LTC6103 Dual High Side Precision Current Sense Amplifier 4V to 60V, Gain Configurable, 8-Pin MSOP Package
LTC6104 Bidirectional, High Side Current Sense 4V to 60V, Gain Configurable, 8-Pin MSOP Package
LT6106 Low Cost, High Side Precision Current Sense Amplifier 2.7V to 36V, Gain Configurable, SOT23 Package
LT6105 Precision, Extended Input Range Current Sense Amplifier –0.3 to 44V, Gain Configurable, 8-Pin MSOP Package
LTC4150 Coulomb Counter/Battery Gas Gauge Indicates Charge Quantity and Polarity
LT1990 Precision, 100μA Gain Selectable Amplifier 2.7V to 36V Operation, CMRR > 70dB, Input Voltage = ±250V
LT1991 ±250V Input Range Difference Amplifier 2.7V to 36V Operation, 50μV Offset, CMRR > 75B, Input Voltage = ±60V
LT1637/LT1638 1.1/1.2MHz, 0.4V/μs Over-The-Top, Rail-to-Rail Input and
Output Amplifier
0.4V/μs Slew Rate, 230μA per Amplifier
relaTeD parTs
1999 TA02
5V
0.1µF
LT1999-10
4k
0.8k
160k
160k
2µA
0.8k
4k
V
+
+
–
SHDN
+
–
V
OUT
40k
V
REF
V
SHDN
V
+
V
+
V
+
V
+
4
0.1µF
5V
CHARGER
LOAD
0.025Ω
BAT
42V
V
CC
V
REF
0.1µF
+IN
10µF
CS
SCK
SDO
LTC2433-1V
OUT
+
–
5V
–IN
0.1µF
2
3
1
5
7
6
8
V
+IN
V
–IN
Battery Charge Current and Load Current Monitor
V
OUT
= 0.25V/A, Maximum Measured Current ±9.5A