Texas Instruments TPS61381-Q1EVM-126 User Manual

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EVM User's Guide: TPS61381-Q1EVM-126
TPS61381-Q1EVM-126 Evaluation Module
Description
The TPS61381QEVM-126 operates over a wide
back up battery voltage range of 0V to 12V and
main battery (VBAT port) voltage range of 0V-40V
to achieve a bi-directional operation. The EVM
supports an output up to 7.5A load at 3.6V BUB
and 6.2V output in boost mode, and supports
50-100mA charging current in charger mode. The
TPS61381QEVM-126 can support output voltage
regulation accuracy better than 2.5% in boost mode
and support better than 1% voltage accuracy in
charger mode. The device functions are adjustable
using I2C interface.
Features
• AEC-Q100 qualified for automotive applications
• Back-up battery (BUB) voltage in boost mode:
0.5V to 12V, 3V minimum voltage for start up
• Support absmax (VOUT pin) up to 40V
• Boost output voltage: up to 12V
• Adjustable boost average input current limit from
5A to 15A
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• Integrated 20mΩ high-side MOSFET and 6mΩ ISO
FET to support true disconnection
• I2C programmable CC, CV charger with integrated
charging strategy
• Auto detection on system voltage and automatic
transition into boost mode when car battery
malfunction occurs
• Fault or operation status indication by STATUS pin
and I2C
• Backup battery State-of-Health(SOH) detection
• 20μA quiescent current in standby mode
• < 1μA shutdown current
• < 1μA leakage current for pins connected to the
back up battery (at Tj up to 60°C)
• Frequency: 400kHz for automotive applications
• Programmable spread spectrum for optimizing EMI
• 3mm × 4mm 25-pin package with wettable flank
Applications
• Emergency call (eCall)
• Door handle module
• Fault indicator (FI)
TPS61381QEVM-126
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TPS61381-Q1EVM-126 Evaluation Module
Description
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