TIDT391 April   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Dimensions
    4. 1.4 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  7. 3Waveforms
    1. 3.1 Start-Up Sequence
    2. 3.2 Switching
    3. 3.3 Short-Circuit Protection

Description

This reference design is a low cost and highly-integrated stand-alone USB Type-C® power delivery (PD) charger reference design for 4- to 7-cell, 900mA battery chargers for applications such as power tool chargers, vacuum cleaners with USB Type-C port input, and so forth. The design incorporates the TPS25730D, a highly-integrated USB Type C PD controller, which includes a fully-managed robust power path switch inside and removes the external E2PROM without firmware effort, using a simple resistor string to configure the power profile. The BQ25756E supports a wide-range input with four-switch buck-boost configuration, and supports seamless transition from buck, boost, and buck-boost operation mode to provide a high efficiency, reliable charger design and achieve 96% peak efficiency.