R5432V Series


The R5432V Series are high voltage CMOS-based protection ICs for over-charge/discharge of rechargeable 3/4/5cell Li-ion/Lithium polymer battery. Each of these ICs is composed of voltage detectors, reference units, a delay circuit, a short circuit protector, an oscillator, a counter, and logic circuits. A more than 6 Cells battery is available by Cascade connection. Disconnection detection and cell-balance function, which can reduce cell-unbalance, are available. Package is SSOP-24.

Absolute Maximum Rating 30V
Supply Current TYP. 12.0µA
Detector thresholds range and accuracy
  Over-charge detector threshold 3.6V to 4.5V (5mV steps) (n=1, 2, 3, 4, 5) (±25mV)
  Over-discharge detector threshold 2.0V to 3.0V (5mVsteps) (n=1, 2, 3, 4, 5) (±2.5%)
  Excess discharge current threhhold1/2 0.1V to 0.3V (10mVsteps) (±20mV)/ 0.6V (±0.1V)
  Short detector threshold 1.0V
  Excess charge current threshold -0.05V (±30mV), -0.1V (±30mV), -0.2V (±30mV), -0.4V (±40mV)
  Over-charge released voltage VDET1n-0.1V to 0.4V (50mV steps) (n=1, 2, 3, 4, 5)
  Over-discharge released voltage VDET2n+0.2V to 0.7V (100mV steps) (n=1, 2, 3, 4, 5)
  Cell-balance detector threshold 3.45V to 4.45V (5mV steps) (n=1, 2, 3, 4, 5)
  Cell-balance released voltage CBDETn-0.0V to 0.4V (50mV steps) (n=1, 2, 3, 4, 5)
Output delay time
  Over-charge detector Output Delay 1.0s
  Over-discharge detector Output Delay Settable by Ext.Capacitance1
  Excess discharge current detector Output Delay 1/2 Settable by Ext.Capacitance2
  Excess charge current detector Output Delay 8ms
  Short detector Output Delay 300ms
  0V-battery charger Available
  Cascade connection Available
  Output Delay Time Shorting Function Available
  Cell-balance function Available
  Cell-unbalance condition Please refer to P10 for details
  Disconnection detection Available
  Package SSOP-24
  • Power source for portable communication equipment.
  • Power source for electrical appliances such as cameras, VCRs and camcorders.
Package Info. code List Quality Assurance Data
R5432V Series SSOP-24 R5432V Series Reliability

All PDF & Excel files are less than 1MB unless otherwise stated.

  • Buy Products / Order Sample


Ricoh semiconductor products are available at those dealers.


Page Top