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ZSSC1956

更新时间： 2024-09-16 01:16:55
品牌 Logo 应用领域
艾迪悌 - IDT 电池
页数 文件大小 规格书
215页 2181K
描述
Intelligent Battery Sensor IC

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中文翻译

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ZSSC1956 数据手册

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ZSSC1956  
Intelligent Battery Sensor IC  
Datasheet  
Brief Description  
Benefits  
The ZSSC1956 IC is a dual-channel analog-to-digital  
converter (ADC) with an embedded microcontroller  
for battery sensing/management in automotive,  
industrial, and medical systems.  
•
Integrated, precision measurement solution for  
accurate prediction of battery state of health  
(SOH), state of charge (SOC) or state of function  
(SOF)  
•
•
•
•
•
•
Flexible wake-up modes allow minimum power  
consumption without sacrificing performance  
One of the two input channels measures the battery  
current IBAT via the voltage drop at the external  
shunt resistor. The second input channel measures  
the battery voltage VBAT and the temperature. An  
integrated flash memory is provided for customer-  
specific software; e.g., dedicated algorithms for  
calculating the battery state.  
No temperature calibration or external trimming  
components required  
Optimized code density through small instruction  
set architecture Thumb®-2 *  
Robust power-on-reset (POR) concept for harsh  
automotive environments  
During Sleep Mode (e.g., engine is off), the system  
makes periodic measurements to monitor the dis-  
charge of the battery. Measurement cycles are  
controlled by the software and include various wake-  
up conditions. The ZSSC1956 is optimized for ultra-  
low power consumption and draws only 100µA or  
less in Low-Power Mode.  
Industry’s smallest footprint allows minimal  
module size and cost  
AEC-Q100 qualified solution  
Available Support  
•
•
Evaluation Kit  
Features  
Application Notes  
•
High-precision 24-bit sigma-delta ADC (18-bit  
with no missing codes); sample rate: 1Hz– 16kHz  
Physical Characteristics  
•
•
On-chip voltage reference (5ppm/K typical)  
Current channel  
•
•
•
Wide operation temperature: -40°C to +125°C  
Supply voltage: 4.2 to 18V  
.
.
.
.
IBAT offset error: ≤ 10mA  
IBAT resolution: ≤ 1mA  
Small footprint package: PQFN32 5x5 mm  
Programmable gain: 4 to 512  
Differential input stage input range: ± 300mV  
Basic ZSSC1956 Application Circuit  
•
•
Voltage channel  
To Harness  
.
.
Input range: 4 to 28.8V  
-
+
Car Chassis Ground  
Voltage accuracy: better than ±2mV  
Temperature channel  
Host  
Controller  
LIN  
VBAT  
VDDE  
.
.
Internal temperature sensor: ± 2°C  
External temperature sensor (NTC)  
LIN  
Interface  
INP  
INN  
•
•
On-chip precision oscillator (1%) and on-chip  
low-power oscillator  
ARM® Cortex™-M0* microcontroller:  
32-bit core, 10MHz to 20MHz  
Rshunt  
VDDA  
ZSSC1956  
Optional  
GPIO:  
SPI, I²C™,  
UART  
NTH  
NTL  
5
GPIO  
f
NTC  
+
-
VSSA VSSE  
•
•
•
•
•
96kB Flash/EE Memory with ECC, 8kB SRAM  
LIN2.2 / SAE J2602-2 compliant  
Battery  
Module Ground  
Directly connected to 12V battery supply  
Normal Mode current consumption: 10mA to 20mA  
Low-Power Mode current consumption: ≤ 100µA  
*
The ARM®, Cortex™, and Thumb®-2 trademarks are owned by ARM, Ltd.  
The I2C™ trademark is owned by NXP.  
© 2016 Integrated Device Technology, Inc.  
1
January 29, 2016  
1234567...215

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