SLUUC27C June   2019  – July 2022 BQ25611D , BQ25619

 

  1.   BQ25611D, BQ25619 (BMS025) Evaluation Module
  2.   Trademarks
  3. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 I/O Descriptions
  4. 2Test Summary
    1. 2.1 Equipment
    2. 2.2 Equipment Setup
    3. 2.3 Software Setup
    4. 2.4 Test Procedure
      1. 2.4.1 Initial Settings
      2. 2.4.2 Communication Verification
      3. 2.4.3 Charger Mode Verification
      4. 2.4.4 Boost Mode Verification
      5. 2.4.5 Evaluation Results
      6. 2.4.6 Helpful Tips
  5. 3PCB Layout Guideline
  6. 4Board Layout, Schematic, and Bill of Materials
    1. 4.1 Board Layout
    2. 4.2 Schematics
    3. 4.3 Bill of Materials
  7. 5Revision History

1.2 I/O Descriptions

Table 1-2 lists the input and output connections available on this EVM and their respective descriptions.

Table 1-2 EVM I/O Connections
JackDescription
J1(2) –VINPositive rail of the charger input voltage
J1(1) –GNDGround
J2(1) – SYSTEMPositive rail of the charger system output voltage, typically connected to the system load
J2(2) –GNDGround
J3(1) –PMIDPositive rail of the charger output voltage for power bank applications in reverse boost mode (OTG). This output also shares the rail with the VIN input rail in forward buck mode
J3(2) –GNDGround
J4(3) –BATTERYPositive rail of the charger battery input, connected to the positive terminal of the external battery
J4(2) – BATSNSInput connected to the positive node of the battery for remote cell voltage measurement
J4(1) - GNDGround
J5I2C 4-pin connector for the EV2300/2400 interface board
J6Input source Micro B USB port

Table 1-3 lists the jumper and shunt installations available on this EVM and their respective descriptions.

Table 1-3 EVM Shunt and Switch Installation
JackDescriptionBQ25611D SettingBQ25619 Setting
JP1I/O Pullup rail selection. Selection will have either BAT or SYS as the pullup rail for SDA, SCL, CE, PG, STAT, and INT pinsPULLUP to SYSShort PULLUP to SYS
JP2Remote BATSNS pin connection to Battery input terminal. Disconnect if sensing battery voltage remotely through J4(2). If disconnected with no input on J4(2), charger BATSNS will default connect to BAT pin internally.InstalledInstalled
JP3PMID_GOOD pin connection to control N-Ch. MOSFET for a power bank applicationNot InstalledInstalled
JP4Thermistor COOL temperature setting. Connect jumper to simulate charger entering TCOOL (T1-T2) temperature region.Not InstalledNot Installed
JP5Thermistor COLD temperature setting. Connect jumper to simulate charger entering TCOLD (<T1) temperature region.Not InstalledNot Installed
JP6Micro B USB input D- connection to charger D- pinInstalledNot Installed
JP7Thermistor NORMAL temperature setting. Connect jumper to simulate charger entering TNORMAL (T2-T3) temperature region.InstalledInstalled
JP8Thermistor WARM temperature setting. Connect jumper to simulate charger entering TWARM (T3-T5) temperature region.Not InstalledNot Installed
JP9Thermistor HOT temperature setting. Connect jumper to simulate charger entering THOT (>T5) temperature region.Not InstalledNot Installed
JP10Micro B USB input D+ connection to charger D+ pinInstalledNot Installed
JP11PG pin LED indicator connection. On PG enabled chargers, this indicates the Power Good statusNot InstalledNot Installed
JP12STAT pin LED indicator connection. This indicates the current charger StatusInstalledInstalled
JP13Charger D+ pin and charger D- pin short connection. Connect this on D+/D- detection enabled chargers to simulate the connection of a DCP-type USB port as defined by USB BC1.2Not InstalledNot Installed
JP14CE pin connection to ground to enable charging. When removed, CE pin will pull up to disable chargeInstalledInstalled
JP15PSEL pin input current selection. Connect this to HIGH on PSEL enabled chargers to select 500mA default input current limit. Connect this to LOW on PSEL enabled chargers to select 2.4-A default input current limitNot InstalledShort PSEL to LOW
JP16VPB status LED indicator connection. On power bank PMID_GOOD enabled chargers, this indicates VPB rail is activeNot InstalledNot Installed
S1QON control switch. Press either for exiting Shipping Mode or System Reset.Default OffDefault Off

Table 1-4 lists the recommended operating conditions for this EVM.

Table 1-4 Recommended Operating Conditions
SymbolDescriptionMINTYPMAXUnit
VVBUS, VVACInput voltage applied to VAC and VBUS pins3.914.0V
VBATBattery voltage applied to BAT pin04.2084.52V
IVBUSInput current into VBUS03.2A
ISWOutput current (SW)3.2A
IBATFast charging current03.0(1) A
Discharging current through internal BATFET6A
(1) BQ25619EVM maximum IBAT is 1.5A.