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LTC2943

更新时间： 2023-12-20 18:44:34
品牌 Logo 应用领域
亚德诺 - ADI 电池
页数 文件大小 规格书
20页 254K
描述
具温度、电压和电流测量功能的多节电池电量测量芯片

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LTC2943 数据手册

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LTC2943  
ABSOLUTE MAXIMUM RATINGS  
PIN CONFIGURATION  
(Notes 1, 2)  
+
Supply Voltage (SENSE )........................... –0.3V to 24V  
TOP VIEW  
SCL, SDA, ALCC Voltage .............................. –0.3V to 6V  
SENSE ...............(–0.3V + V  
Operating Ambient Temperature Range  
LTC2943C ............................................... 0°C to 70°C  
LTC2943I ............................................–40°C to 8±°C  
Storage Temperature Range .................. –6±°C to 1±0°C  
–
+
+
) to (V  
+ 0.3V)  
+
–
SENSE  
SENSE  
SENSE  
GND  
GND  
SCL  
1
2
3
4
8
7
6
5
SENSE  
GND  
9
ALCC  
SDA  
DD PACKAGE  
8-LEAD (3mm × 3mm) PLASTIC DFN  
T
= 1±0°C, θ = 100°C/W  
JA  
JMAX  
EXPOSED PAD (PIN 9) PCB GND CONNECTION OPTIONAL  
ORDER INFORMATION  
LEAD FREE FINISH  
LTC2943CDD#PBF  
LTC2943IDD#PBF  
TAPE AND REEL  
PART MARKING*  
LGCS  
PACKAGE DESCRIPTION  
TEMPERATURE RANGE  
LTC2943CDD#TRPBF  
LTC2943IDD#TRPBF  
8-Lead (3mm × 3mm) Plastic DFN  
8-Lead (3mm × 3mm) Plastic DFN  
0°C to 70°C  
LGCS  
–40°C to 8±°C  
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.  
For more information on lead free part marking, go to: http://www.linear.com/leadfree/  
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/  
ELECTRICAL CHARACTERISTICS  
The l denotes the specifications which apply over the full operating  
temperature range, otherwise specifications are at TA = 25°C. (Note 2)  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
Power Requirements  
+
V
Supply Voltage  
3.6  
20  
V
SENSE  
l
l
l
I
Supply Current (Note 3)  
Battery Gas Gauge On, ADC Sleep  
Battery Gas Gauge On, ADC On  
Shutdown  
80  
6±0  
1±  
120  
7±0  
2±  
µA  
µA  
µA  
SUPPLY  
+
I
Pin Current (Note 3)  
Battery Gas Gauge On, ADC Sleep  
Battery Gas Gauge On, ADC On  
Shutdown  
80  
±00  
1±  
µA  
µA  
µA  
SENSE  
SENSE  
–
I
Pin Current (Note 3)  
Battery Gas Gauge On, ADC Sleep  
Battery Gas Gauge On, ADC On  
Shutdown  
1
1±0  
1
µA  
µA  
µA  
+
l
l
V
Undervoltage Lockout Threshold  
V
Falling  
3.0  
3.3  
3.6  
V
UVLO  
SENSE  
Coulomb Counter  
+
–
V
Sense Voltage Differential Input  
Range  
V
– V  
±±0  
mV  
kΩ  
SENSE  
SENSE  
SENSE  
R
Differential Input Resistance Across  
400  
IDR  
+
–
SENSE and SENSE (Note 8)  
q
Charge LSB (Note 4)  
Prescaler M = 4096(Default), R  
= ±0mΩ  
0.340  
mAh  
LSB  
SENSE  
2943fa  
2
For more information www.linear.com/LTC2943  
1234567...20

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