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ATmega16HVB

Status: End of Life

Features:

  • Two, three or four cells in series
  • High-current protection (charge and discharge)
  • Over-current protection (charge and discharge)
  • Short-circuit protection (discharge)
  • High-voltage outputs to drive N-channel charge/discharge FETs
  • Optional deep under voltage recovery mode - allowing 0-volt charging without external precharge FET
  • Optional high-voltage open drain output - allowing 0-volt charging with external precharge FET
  • Integrated cell balancing FET
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Device Overview

Summary

A monitoring and protection circuit for 3-cell and 4-cell Li-ion applications that require the highest safety including safe authentication, low cost, and high utilization of the cell energy. The microcontroller includes 16KB self-programming flash program memory, 1KB SRAM, 512-bytes EEPROM, 2, 3 or 4 cells in series, over-current, high-current and short-circuit protection, 12-bit voltage A/D converter, 18-bit coulomb counter current A/D converter, and debugWire interface for on-chip debug.

The device features autonomous battery protection during charging and discharging, and supports very accurate accumulated current measurements using an 18-bit A/D converter with a resolution of 0.84µV. It also supports up to 8 MIPS throughput at 8MHz,  4-25V operation.

Additional Features
    • Battery management features
      • Two, three or four cells in series
      • High-current protection (charge and discharge)
      • Over-current protection (charge and discharge)
      • Short-circuit protection (discharge)
      • High-voltage outputs to drive N-channel charge/discharge FETs
      • Optional deep under voltage recovery mode - allowing 0-volt charging without external precharge FET
      • Optional high-voltage open drain output - allowing 0-volt charging with external precharge FET
      • Integrated cell balancing FET
Parametrics
Name
Value
Program Memory Type
Flash
Program Memory Size (KB)
16
CPU Speed (MIPS/DMIPS)
8
SRAM (B)
1,024
Data EEPROM/HEF (bytes)
512
Digital Communication Peripherals
1-SPI, 1-I2C
Capture/Compare/PWM Peripherals
2 Input Capture, 2 CCP, 4PWM
Timers
2 x 8-bit
Temperature Range (°C)
-40 to 85
Operating Voltage Range (V)
4 to 25
Pin Count
44

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Product
Pins
Flash (KB)
SRAM (B)
Price 5K
Notes
48
40
2
$4.68
 

Rohs data is currently unavailable.

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