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ZSSC1751 - Application Circuit
ZSSC1751 - Block Diagram
ZSSC1751 - Pinout

ZSSC1751

Data Acquisition System Basis Chip

The ZSSC1751 is a System Basis Chip (SBC) with a dual-channel ADC for battery sensing/management in automotive, industrial, and medical systems. The ZSSC1751 features an SPI interface and an integrated LIN 2.1 transceiver. One of the two input channels measures the battery current IBAT via the voltage drop at the external shunt resistor. The second channel measures the battery voltage VBAT and the temperature. By simultaneously measuring VBAT and IBAT, it is possible to determine dynamically the internal resistance of the battery, Rdi, which is correlated with the state-of-health (SOH) of the battery. By integrating IBAT, it is possible to determine the state-of-charge (SOC) and the state-of-function (SOF) of the battery. During Sleep Mode, the system makes periodic measurements to monitor the discharge of the battery. Measurement cycles are controlled by user software and include various wake-up conditions. The ZSSC1751 is optimized for ultra-low power consumption drawing only 60μA or less in this mode.

The related product ZSSC1750 offers the same functionality with an additional LIN interface feature.

Features

  • Two high-precision 24-bit sigma-delta ADCs (18-bit with no missing codes)
  • Sample rate: 1Hz to 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 maximum differential input stage input range: ±300mV
  • Voltage channel input range: 4 to 28.8V
  • Voltage channel accuracy: ±60ppm full-scale range = 1.73mV
  • Temperature channel external temperature sensor (NTC)
  • Temperature channel factory-calibrated internal temp. sensor: ±2°C
  • Normal Mode typical current consumption: 12mA
  • Sleep Mode typical current consumption: ≤ 60μA

Product Specification

FunctionAdvanced FeaturesResolution (bits)
System Basis Chip24

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. RangeCarrier TypeSample & Buy
ZSSC1751EA3RActiveNLG36VFQFPN36T1ReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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ZSSC175X Short-form Datasheet Short Form Datasheet PDF 155 KB Apr 20, 2016
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ZSSC175X Datasheet Datasheet PDF 1.37 MB Apr 20, 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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ZSSC175x Evaluation Software Release 4.0.14 (zip) Software ZIP 7.68 MB Aug 23, 2016

Related Videos

  • 2016-04-27 ZSSC1750 Data Acquisition System Basis Chip...

Evaluation Boards