ZSSC1956 Datasheet PDF - Integrated Device Technology

Brief Description 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.
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 customerspecific software; e.g., dedicated algorithms for calculating the battery state.

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
   ◾ IBAT resolution: ≤ 1mA
   ◾ Programmable gain: 4 to 512
   ◾ Differential input stage input range: ± 300mV
• Voltage channel
   ◾ Input range: 4 to 28.8V
   ◾ Voltage accuracy: better than ±2mV
• Temperature channel
   ◾ Internal temperature sensor: ± 2°C
   ◾ 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