Texas Instruments bq34110EVM-796 Скачать руководство пользователя страница 8 | Manualshive

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Texas Instruments bq34110EVM-796 Скачать руководство пользователя страница 8

Operation

8

SLUUBI1A – October 2016 – Revised July 2018

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Copyright © 2016–2018, Texas Instruments Incorporated

bq34110EVM-796 Evaluation Module

3.2.1

Cell Configuration

The bq34110 operates in one of two modes for measuring battery voltage. Place jumpers on the J2 and
J5 headers to select the mode of operation. See the

EVM Connections

section.

For packs where the stack voltage is less than 5 V:

•

Enable Calibration Mode on the device by pressing the

CAL_TOGGLE

button on the Commands

panel. Verify that the

CAL_EN

flag is set in the

Manufacturing Status

register.

•

Update the

Flash Update OK Voltage

parameter on the Data Memory

Configuration

screen to

100mV (default is 2.8V). This parameter prevents flash updates when the measured voltage is below
this setting. This can later be updated to an appropriate voltage once the dividers are configured.

•

Set the

Number of Series Cells

parameter to the appropriate value on the Data Memory

Configuration

screen.

•

Reset the gauge using the

RESET

button on the

Commands

panel.

•

Calibrate the stack voltage. See the

section.

NOTE:

The EVM can support single cell applications, where the cell voltage can drop below 2.5 V,

by providing an external 3.3-V supply to power REGIN. For voltages below 2.5V, remove the
jumper from J2 – pins 3 and 4 (upper

≤

5-V jumper location) and apply a 3.3-V supply to the

REGIN test point.

For packs where the stack voltage is greater than 5 V:

•

Enable Calibration Mode on the device by pressing the

CAL_TOGGLE

button on the

Commands

panel. Verify that the

CAL_EN

flag is set in the

Manufacturing Status

register.

•

Update the

Flash Update OK Voltage

parameter on the Data Memory

Configuration

screen to

100mV (default is 2.8V). This parameter prevents flash updates when the measured voltage is below
this setting.

•

Set the

VEN_EN

bit to “1” in the

Pin Control Config

in Data Memory on the

Settings

screen. This

enables the external voltage divider on the EVM and disables the internal voltage divider. The VEN pin
will pulse to enable the external resistor divider only during a voltage measurement to save power.

•

Set the

Number of Series Cells

parameter to the appropriate value on the Data Memory

Configuration

screen.

•

Set the

Voltage Divider

parameter in Data Memory on the

Calibration

screen. This value should be

set based on the external resistor divider setting. (For example, use ~19,200 when the J5 header is set
to the 16V setting which divides the BAT+ voltage by 19.2).

•

Reset the gauge using the

RESET

button on the

Commands

panel.

•

Calibrate the stack voltage. See the

section.

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Содержание bq34110EVM-796

Страница 1: ...on Evaluate the overall functionality under different charge and discharge conditions Contents 1 Features 2 1 1 Kit Contents 2 1 2 Ordering Information 2 1 3 bq34110 Circuits Module Performance Specif...

Страница 2: ...module for quick setup Personal computer PC software and interface board for easy evaluation Software allows data logging for system analysis 1 1 Kit Contents The following items are included in the...

Страница 3: ...ing the evaluation software connect the EV2400 to the PC using the USB cable The EV2400 driver will install automatically 2 3 EV2400 Firmware Updater The EV2400 firmware is updated periodically The bq...

Страница 4: ...ange for your pack Table 3 Cell Configuration Jumper Placement Cell Configuration Jumper Placement J2 Single cell or stack voltage less than 5 V Place jumpers in the 5 V positions Multicell Place jump...

Страница 5: ...drain outputs ALERT1 and ALERT2 Monitor the outputs monitored on J6 2 5 3 Pin Description Table 4 lists the EVM pin descriptions Table 4 EVM Pin Descriptions Pin Name Description ALERT1 Open drain al...

Страница 6: ...n or Refresh single time scan buttons can be clicked in order to update the data in the Registers and Data Memory windows bqStudio provides a logging function which logs selected Data Registers last r...

Страница 7: ...To read all the data from the bq34110 non volatile flash memory click on the Read All button on the Data Memory window Make sure the device is not sealed and in full access to read or write to the dat...

Страница 8: ...2 5 V by providing an external 3 3 V supply to power REGIN For voltages below 2 5V remove the jumper from J2 pins 3 and 4 upper 5 V jumper location and apply a 3 3 V supply to the REGIN test point Fo...

Страница 9: ...alue in the Applied Voltage field and select the Calibrate Voltage box Press the Calibrate Gas Gauge button to calibrate the voltage measurement system Deselect the Calibrate Voltage boxes after volta...

Страница 10: ...n to calibrate Verify whether the current reports 0 mA Connect a 2 A load from BAT to PACK Enter 2000 in the Applied Current field and select the Calibrate Current box Press the Calibrate Gas Gauge bu...

Страница 11: ...m I2C window This tool provides access to parameters using I2 C and Manufacturing Access commands see Figure 6 Figure 6 Advanced Comm I2 C Screen Examples Reading an I2 C Command Read SBData Voltage 0...

Страница 12: ...rt the device firmware as an srec bq fs and df fs files Figure 7 Golden Image Window 3 6 1 Exporting the Flash Memory The srec file contains the full flash memory The bq fs contains the program memory...

Страница 13: ...sed to obtain the experimental data needed to calculate the CEDV coefficients Figure 8 CEDV Coefficients Calculation Flow The equipment necessary is as follows bqStudio software bq34110EVM 796 Power s...

Страница 14: ...s Incorporated bq34110EVM 796 Evaluation Module 4 Circuit Module Physical Layout Bill of Materials and Schematic This section contains the board layout bill of materials and schematic for the bq34110...

Страница 15: ...hysical Layout Bill of Materials and Schematic 15 SLUUBI1A October 2016 Revised July 2018 Submit Documentation Feedback Copyright 2016 2018 Texas Instruments Incorporated bq34110EVM 796 Evaluation Mod...

Страница 16: ...ayout Bill of Materials and Schematic www ti com 16 SLUUBI1A October 2016 Revised July 2018 Submit Documentation Feedback Copyright 2016 2018 Texas Instruments Incorporated bq34110EVM 796 Evaluation M...

Страница 17: ...hysical Layout Bill of Materials and Schematic 17 SLUUBI1A October 2016 Revised July 2018 Submit Documentation Feedback Copyright 2016 2018 Texas Instruments Incorporated bq34110EVM 796 Evaluation Mod...

Страница 18: ...k 3 5 mm 2x1 Tin TH Terminal Block 3 5 mm 2x1 TH 39357 0002 Molex 1 Q1 60V MOSFET N CH 60 V 0 17 A SOT 23 SOT 23 2N7002 7 F Diodes Inc 1 Q2 50V MOSFET P CH 50 V 0 13 A SOT 323 SOT 323 BSS84W 7 F Diode...

Страница 19: ...2016 2018 Texas Instruments Incorporated bq34110EVM 796 Evaluation Module Table 6 Bill of Materials continued Qty Reference Designator Value Description Size Part Number Manufacturer 2 U2 U3 ESD in 0...

Страница 20: ...www ti com 20 SLUUBI1A October 2016 Revised July 2018 Submit Documentation Feedback Copyright 2016 2018 Texas Instruments Incorporated bq34110EVM 796 Evaluation Module 4 3 Schematic Figure 13 illustr...

Страница 21: ...entation Feedback Copyright 2016 2018 Texas Instruments Incorporated bq34110EVM 796 Evaluation Module 5 Related Documentation from Texas Instruments bq34110 data sheet bq34110 Multi Chemistry CEDV Bat...

Страница 22: ...ge and example to show the transaction log 1 Added additional jumper settings descriptions within the schematic image 2 Changed Quick Start Guide to include steps to set up EV2400 firmware and bq34110...

Страница 23: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

Страница 24: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments BQ34110EVM 796...

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