Summit SMB239 Programmable Linear Battery Charger
The SMB239, from Summit Microelectronics, is a programmable battery charger integrated circuit (IC) for single-cell Li-Ion and Li-Polymer powered systems. The SMB239 device’s battery charging parameters are fully programmable via the I2C interface and non-volatile memory. The SMB239 is ideal for Bluetooth[tm] mono/stereo headsets, mobile phones, digital cameras, portable music players, portable GPS navigation, and handheld medical equipment. The new device is available now for $0.81 each in quantities of 10,000 units.
SMB239 Battery Charger Features
- World’s smallest linear charger
- Linear charging for reduced board space
- Up to 525mA charge current
- Stable with small ceramic capacitors
- 4.35 to 6.5V input voltage range
- Small 1.3 x 2.1 uCSP[tm] package (0.5mm pitch)
- High-accuracy output voltage regulation: 1%
- Low reverse leakage current
- Digital programming of all major parameters via I2C interface and lockable non-volatile memory
- Battery voltage set point
- Pre-charge, fast charge, termination current
- Fast charge voltage threshold
- Temperature limits
- Charge safety timers
- Automatic restart threshold
- Fault/Status indicator
- Wide range of protection features
- Thermal regulation
- Battery pack temperature monitor
- Input/output over-voltage lockout
More info: Summit Programmable Linear Battery Charger (pdf)
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