SLUUC51D june   2020  – july 2023 BQ25790

 

  1.   1
  2.   BQ25790EVM (BMS027) Evaluation Module User's Guide
  3.   Trademarks
  4.   4
  5. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 I/O Descriptions
    3. 1.3 Recommended Operating Conditions
  6. 2Test Setup and Results
    1. 2.1 Equipment
    2. 2.2 Equipment Setup
    3. 2.3 Software Setup
      1. 2.3.1 BQSTUDIO using EV2400
      2. 2.3.2 TI Charger GUI for USB2ANY
    4. 2.4 Test Procedure
      1. 2.4.1 Initial Settings
      2. 2.4.2 Communication Verification
      3. 2.4.3 Charge Mode Verification
      4. 2.4.4 OTG Mode Verification
  7. 3PCB Layout Guidelines
  8. 4Board Layout, Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Board Layout
    3. 4.3 Bill of Materials
  9. 5Revision History

1.3 Recommended Operating Conditions

Table 1-4 Recommended Operating Conditions
Description Min Typ Max Unit
V(VINx) at J1 or J2 Power supply voltage to the external blocking FETs which allow power to VBUS pin 3.6 24 V
I(INx) into J1 or J2 Power supply current, which can be limited by the charger input current limit feature (IINDPM) 0.01 3.3 A
V(BATTERY) voltage at J5 Battery voltage supported for precharge 2.2 3.8(1S), 7.6(2S), 11.4(3S), 15.2V(4S) 18.8 V
I(BATTERY) out of/into J5 Battery charge current 0.01 2 (1S, 2S), 1(3S, 4S) 5 A
V(SYS) at J3 System voltage regulation range 3.2 19 V
I(SYS) out of J3 System load current 0 5 A
Note: If hotplugging adapters with voltage greater than 15 volts, then TI recommends to install RSNUB1, CSNUB1, RSNUB2, and CSBUB2 as listed on the schematic.
Note: If hotplugging 4 S batteries and a shipFET is installed, then TI recommends to install component CSNUB3 as listed on the schematic.
Note: If hotplugging 4 S batteries and a shipFET is not installed, then TI recommends to install component DVTS as listed on the schematic.