PS402-I/SS042
PS402-I/SS042 Datasheet
PS402-01XX
| Part | Datasheet |
|---|---|
PS402-I/SS042 |
PS402-I/SS042 (pdf) |
| PDF Datasheet Preview |
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| PS402-01XX Single Chip Battery Manager Nickel Chemistries • Single chip solution for rechargeable battery management • Embedded Microchip patented technology provides precise capacity reporting within 1% for all rechargeable battery chemistries • User configurable and “learned” parameters stored in on-chip 128 x 8 EEPROM fully field reprogrammable via SMBus interface • Integrating sigma-delta A/D converter accurately measures - Current through sense resistor 15 bits - High-voltage 18V battery cells directly connected to pack voltage input 11 bits - Temperature measurement from on-chip sensor or optional external thermistor 11 bits • Integrated precision silicon time base • Eight individually programmable input/output pins that can be assigned as - Charge control I/O - Safety function I/O - SOC LED output drive pins - General purpose I/O • Full SMBus v1.1 2-wire host interface • Microchip firmware in 12 Kbytes of customizable on-chip OTP EPROM Pin Description VDDD GPIO 4 GPIO 5 GPIO 6 GPIO 7 SMB-CLK SMB-DTA RSV5 RSV6 RSV7 VDDA VSSA RSHP PS402 VSSD GPIO 3 GPIO 2 GPIO 1 GPIO 0 RSV1 RSV2 RSV3 RSV4 ROSC VREFT VNTC RSHN 28-pin SSOP Package mil Pin Summary Pin Name Type VDDD, VSSD GPIO 0..7 SMB-CLK, SMB-DTA VC 1 VDDA, VSSA |
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