Tai-1 Microelectronics
Preliminary
TMPA2156D2
www.taimec.com.tw
Rev.1.0
September 7, 2005
Copyright
©2005, Tai-1 Microelectronics Corp.
10
Over temperature protection
A temperature sensor is built in the device to detect the temperature inside the device.
When
a high temperature around 145oC and above is detected the switching output signals are
disabled to protect the device from over temperature. Automatic recovery circuit enables the
device to come back to normal operation when the internal temperature of the device is below
around 120oC.
Over temperature protection
A temperature sensor is built in the device to detect the temperature inside the device.
When
a high temperature around 145oC and above is detected the switching output signals are
disabled to protect the device from over temperature. Automatic recovery circuit enables the
device to come back to normal operation when the internal temperature of the device is below
around 120oC.
Over current protection
A current detection circuit is built in the device to detect the switching current of the output
stages of the device. It disables the device when the current is beyond about 3.5amps. It
protects the device when there is an accident short between outputs or between output and
power/gnd pins. It also protects the device when an abnormal low impedance is tied to the
output. High current beyond the specification may potentially causes electron migration and
permanently damage the device. Shutdown or power down is necessary to resolve the
protection situation. There is no automatic recovery from over current protection.
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