SLUUD99A February   2025  – April 2025 BQ25858-Q1 , BQ25858B-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
      1. 1.3.1 Recommended Operating Conditions
      2. 1.3.2 PCB and Mechanical Parameters
    4. 1.4 Device Information
    5. 1.5 General Texas Instruments High Voltage Evaluation (TI HV EMV) User Safety Guidelines
      1. 1.5.1 General Safety Information
  7. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Equipment
    3. 2.3 Setup
    4. 2.4 Header Information
    5. 2.5 Jumper Information
  8. 3Software
    1. 3.1 Communication Interface Installation
      1. 3.1.1 BQSTUDIO using EV2400
      2. 3.1.2 TI Charger GUI for USB2ANY
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  10. 5Additional Information
    1. 5.1 Trademarks
  11. 6Revision History

1.3.1 Recommended Operating Conditions

Table 1-1 Recommended Operating Conditions for BQ25858EVM and BQ25858BEVM
DescriptionMINTYPMAXUNIT
VIN (J1)Input voltage to the EVM855(1)V
VOUT (J3)Output voltage of the EVM3.355(1)V
IIN (J1)Input current of the EVM10(3)(4)A
IOUT (J3)Output current of the EVM10(3)A
Regulator output powerOutput power of the EVM400(3)W
EXT_DRV (J6)Voltage applied to DRV_SUP pin of the regulator411V
EVM operating ambient temperature (TA)25(2)°C
(1) Due to the high di/dt and dv/dt electrical flow associated with switch-mode power supplies, nodes on the EVM can have high spike above input voltage (in buck mode) or output voltage (in boost mode) level. Switch node voltage can swing up to "input or output + inductive spike" level. High side gate drives can swing up to "switch node voltage + 11V (DRV_SUP supply voltage dependent) + gate drive inductive spike" level. Safety precautions must be observed at all times.
(2) Connectors, bump-ons, jumpers on the EVM are not a good choice for evaluation under temperature greatly deviated from room temperature of 25°C. Please refer to BOM for temperature rating of board components.
(3) Thermal monitoring (for example, using a thermal camera) is recommended if power stage output current > 5A or total output power > 100W.
(4) Default EVM input current limit is set to 8A through the IIN pin. The current limiting feature can be disabled by setting EN_IIN_PIN bit to '0', changing IIN pin resistor, or shorting IIN pin to PGND through JP11.