Specifications

Smart Battery Charger Specification
SBS Implementers Forum -Page i- Revision 1.1
Table of Contents
1. INTRODUCTION 1
1.1. Scope 1
1.2. Audience 1
2. REFERENCES 2
3. DEFINITIONS 2
4. SMART BATTERY CHARGING SYSTEM 3
4.1. Smart Battery System Block Diagrams 3
4.2. Smart Battery Charger Types 5
4.2.1. Level 2 Smart Battery Charger 5
4.2.2. Level 3 Smart Battery Charger 5
4.3. Interface Definition 6
4.3.1. Typical Communications between a Smart Battery-and-Smart Battery Charger 6
4.3.2. Critical Communications from a Smart Battery to the Smart Battery Charger 6
4.4. Error Detection and Signaling 7
4.4.1. Error Detection 7
4.4.2. Error Signaling 7
5. SMART BATTERY CHARGER COMMANDS 8
5.1. Smart Battery Charger Slave Functions (battery or host-to-charger) 10
5.1.1. ChargingCurrent() (0x14) 10
5.1.2. ChargingVoltage() (0x15) 11
5.1.3. AlarmWarning() (0x16) 11
5.1.4. ChargerMode() (0x12) 12
5.1.5. ChargerStatus() (0x13) 13
5.1.6. ChargerSpecInfo() (0x11) 15
5.2. Smart Battery Charger Master Functions (charger-to-battery) 16
5.2.1. ChargingCurrent() (0x14) 16
5.2.2. ChargingVoltage() (0x15) 17
6. SMART BATTERY CHARGER CHARACTERISTICS 19
6.1. Common Smart Battery Charger Characteristics 19
6.1.1. Safety Signal Ranges 19
6.1.2. Smart Battery Charger Time-out Period 19
6.1.3. Smart Battery Charger Wakeup Charge Current 19
6.1.4. Charger Brown-Out Conditions 20
6.1.5. Smart Battery Charger Leakage Current 20