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ZSSC1956 - Application Circuit
ZSSC1956 - Block Diagram
ZSSC1956 - Pinout

ZSSC1956

Intelligent Battery Sensor IC

The ZSSC1956 is a dual-channel ADC with an embedded microcontroller for battery sensing/management in automotive, industrial, and medical systems. 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. During Sleep Mode (e.g., engine is off), the system makes periodic measurements to monitor the discharge 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.

Features

  • High-precision 24-bit sigma-delta ADC (18-bit with no missing codes)
  • Sample rate: 1Hz – 16kHz
  • On-chip voltage reference (5ppm/K typical)
  • Current channel IBAT offset error: ≤10mA
  • Current channel IBAT resolution: ≤1mA
  • Current channel programmable gain: 4 to 512
  • Current channel differential input stage input range: ± 300mV
  • Voltage channel input range: 4 to 28.8V
  • Voltage channel accuracy: better than ±2mV
  • Temperature channel internal temperature sensor: ± 2°C
  • Temperature channel external temperature sensor (NTC)
  • On-chip precision oscillator (1%) and on-chip low-power oscillator
  • ARM® Cortex™-M0 microcontroller: 32-bit core, 10MHz to 20MHz
  • 96kB Flash/EE Memory with ECC, 8kB SRAM
  • LIN2.2 /SAE J2602-2 compliant
  • Directly connected to 12V battery supply
  • Normal Mode current consumption: 10mA to 20mA
  • Low-Power Mode current consumption: ≤ 100µA

Product Specification

FunctionAdvanced FeaturesResolution (bits)
Battery Monitor24

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. RangeCarrier TypeSample & Buy
ZSSC1956BA3RActiveNLG32VFQFPN32T1ReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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ZSSC1956 Short-form Datasheet Short Form Datasheet PDF 178 KB Jan 29, 2016
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ZSSC1956 Datasheet Datasheet PDF 2.12 MB Jan 29, 2016
User Guides & Manuals
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IDT ARM Cortex-M0 User Guide Manual PDF 744 KB Apr 22, 2016
Other
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IDT CAD Altium Libraries for AID Products Rev 20160819 PCB Design Files ZIP 1.20 MB Aug 19, 2016
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Automotive Solutions Overview 简体中文 Overview PDF 2.79 MB Mar 9, 2016

Software & Tools

Title Type Format File Size Datesort icon
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ZSSC1956 Evaluation Software Release 4.0.9 (zip) Software ZIP 8.87 MB Apr 8, 2016

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Evaluation Boards