SMB139 SUMMIT Microelectronics, Inc:, SMB139 Datasheet - Page 12

• Manufacturer Part Number: SMB139
• Description: ? Summit Microelectronics, Inc. 2005 ? 757 N. Mary Avenue ? Sunnyvale Ca 94085 ? Phone [phone] ? Fax [phone] Http //www.summitmicro.com/ 2121 3.0 6/19/2008 1 Programmable Linear Battery Charger
• Manufacturer: SUMMIT Microelectronics, Inc:

in a volatile manner, Register 31[7] must first be set
high.
FAULT and STATUS Indicators
A large number of battery charging conditions and
parameters are monitored and corresponding fault and
status indications are available to the user via the I
compatible registers. These include the following:
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Internal Thermal Protection
When the die temperature of the SMB139 reaches
approximately 110°C, charge current will be reduced to
prevent further die heating. This internal thermal
protection circuit helps to improve device (and
consequently, system) reliability.
Summit Microelectronics, Inc
APPLICATIONS INFORMATION (CONTINUED)
Charging status
Safety timer timeout
Over-temperature alarm
Under-temperature alarm
Over-voltage alarm
Under-voltage alarm
Missing battery detection
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C
SMB139
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