Part Number: SMB135
Function: Single-cell lithium-ion/lithium-polymer battery charger
Package: Small 1.3 x 2.1 uCSP-15 package (0.4mm pitch) Type
Manufacturer: Summit
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Description
The SMB135 is a programmable single-cell lithium-ion/lithium-polymer battery charger for a variety of portable applications. The device provides a simple and efficient way to charge high-capacity Li-Ion batteries via a USB port or an AC adapter. Unlike conventional devices, the IC’s high-efficiency operation eliminates large internal temperature rise and localized hot spot in handheld equipment. Summit’s proprietary TurboChargeTM mode allows a 750mA charge current from a 500mA USB port, resulting to significantly reduced charge times.
Charge control includes qualification, trickle-charge, pre-charge, constant current/constant voltage, and termination/safety settings that are fully programmable via a serial I2C/SMBus making the device truly
a flexible solution. Fast charge current level (one or five unit loads) can be set via I2C or an input pin (USB500/100).
Features
• 4.35 to 6.5V input voltage range
• High-accuracy output voltage regulation: 1%
• Low reverse leakage current
• Status/Fault indicator
• Stability with ceramic capacitors
• Wide range of protection features […]
Applications:
• GSM Handsets
• UMTS Handsets
• Portable Media & Gaming Players
• Digital camcorders/still cameras
• Handheld GPS/PDAs
SMB135 PDF Datasheet
