Texas Instruments Evaluation Module for BQ24140, 1.5A Dual Input Switchmode Charger with USB-OTG Support BQ24140EVM-003 BQ24140EVM-003 데이터 시트
제품 코드
BQ24140EVM-003
Printed-Circuit Board Layout Guideline
block currents isolated (high-power/low-power small-signal) which reduces noise-coupling and ground-
bounce issues. A single ground plane for this design gives good results. No ground-bounce issue
occurs with this small layout and a single ground plane. Having the components segregated minimizes
coupling between signals.
bounce issues. A single ground plane for this design gives good results. No ground-bounce issue
occurs with this small layout and a single ground plane. Having the components segregated minimizes
coupling between signals.
6. The high-current charge paths into VBUS, PMID, and from the SW pins must be sized appropriately for
the maximum charge current in order to avoid voltage drops in these traces. The PGND pins must be
connected to the ground plane to return current through the internal low-side FET.
connected to the ground plane to return current through the internal low-side FET.
10
bq24140, Fully Integrated, Dual-Input, Switch-Mode, One-Cell, Li-Ion Charger SLUU495A – October 2011 – Revised September 2012
With Full USB Compliance and USB-OTG Support EVM
With Full USB Compliance and USB-OTG Support EVM
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