Texas Instruments DRV821 EVM Series Скачать руководство пользователя страница 14

7 Removing and Installing Supported Motor Drivers

The EVM can support the DRV8210/8212/8220DSG, DRV8210/8212PDSG, and DRV8210/8212/8220DRL
devices. The EVM contains two footprints that can support the devices listed above. Footprint U2 supports the
DSG and PDSG devices and footprint U5 supports the DRL devices. U2 and U5 share the same output
connector so only one of the two footprints should be populated at any time. Below are step-by-step instructions
on how to remove and place different drivers on the EVM:

1. Disconnect power from the EVM.
2. Carefully de-solder the device from the PCB. Make sure to follow proper soldering and ESD protection

procedures to prevent damage to the EVM.

3. Carefully solder the new device to the EVM. See 

Table 7-1

 for further instructions. Visit 

ti.com

 or any

authorized third party vendor to purchase the desired driver.

4. The EVM uses a combination of resistors to identify the device that is populated on the board. 

Figure 7-1

show the resistors used for device identification. The MCU reads the values of ID1, ID2, and ID3 to determine
the device that is installed on the EVM. The firmware will function slightly different depending on the device
that is on the board. Each of the supported devices have unique values for ID1, ID2, and ID3 which are set by
R5, R7, R8, R9, R13, and R14. After installing the new device, make sure to populate the appropriate
resistors. 

Table 7-2

 show the unique device ID for each supported device and the resistor combination to

populate.

Table 7-1. Procedure For Soldering New Device and Passives to EVM

New device being installed

Soldering procedures

DRV8210/8212DSG or DRV8210/8212PDSG

Solder the device to footprint U2. Make sure pin 1 of device aligns with the dot on
the PCB

If not already de-populated, de-populate R10

If not already populated, populate C6 (1210, 25V, 22µF), C9 (1210, 25V, 22µF),
C3 (0402, 25V, 0.1µF), C1 (0603, 25V, 0.1µF), and R15 (0603, 0Ω)

DRV8220DSG

Solder the device to footprint U2. Make sure pin 1 of device aligns with the dot on
the PCB

If not already de-populated, de-populate R15

If not already populated, populated C6 (1210, 25V, 22µF), C9 (1210, 25V, 22µF),
C3 (0402, 25V, 0.1µF), C1 (0603, 25V, 0.1µF).

If not already populated, populate J7 (2x1, 2.54 mm, TH header). See 

Table 3-1

 to

learn about the function of J7 header.

DRV8210/8212/8220DRL

Solder the device to footprint U5. Make sure pin 1 of device aligns with the dot on
the PCB.

If not already de-populated, de-populate C6, C9, C3, C1, R10, and R15.

If not already populated, populate C10 (0402, 25V, 0.1µF).

Figure 7-1. Device ID Resistors

Table 7-2. Unique Device Identifier Resistors

Device

Device ID

Device ID resistors to populate

DRV8210DSG

ID1=0; ID2=0; ID3=0

R9, R13, R14

DRV8210PDSG

ID1=0; ID2=0; ID3=1

R9, R13, R8

Removing and Installing Supported Motor Drivers

www.ti.com

14

DRV821xEVM and DRV8220EVM User's Guide

SLOU540A – NOVEMBER 2020 – REVISED DECEMBER 2020

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Copyright © 2020 Texas Instruments Incorporated

Содержание DRV821 EVM Series

Страница 1: ...ous current of both channels be limited to 0 9 A RMS when operating for extended periods of time at an ambient temperature of 25 C Table of Contents 1 Introduction 3 2 Power Connectors 3 3 Test Points...

Страница 2: ...CB Top 3 D View Figure 1 2 PCB Assembly View PCB Top Assembly View www ti com 2 DRV821xEVM and DRV8220EVM User s Guide SLOU540A NOVEMBER 2020 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2...

Страница 3: ...FR5969 Note that a four pin angled male header is required and must be soldered to J21 of this Launchpad from V pin to GND pin We recommend a pin header with pin dimensions similar to 850 10 050 20 00...

Страница 4: ...0FR5969 LaunchPad connected to EVM Power Connectors www ti com 4 DRV821xEVM and DRV8220EVM User s Guide SLOU540A NOVEMBER 2020 REVISED DECEMBER 2020 Submit Document Feedback Copyright 2020 Texas Instr...

Страница 5: ...SE output from the current sense amplifier U4 R2 R3 R4 R16 and R19 can be removed to connect external MCU to J4 J2 Header use to set the state of the MODE nSLEEP signal MODE nSLEEP can be set to eithe...

Страница 6: ...DRV821xDSG are EN IN1 and PH IN2 The functions of these inputs are IN1 and IN2 when the MODE is GND PWM mode or Hi Z independent half bridge mode When MODE is connected to 3 3 V PH EN control mode the...

Страница 7: ...4 2 MODE nSLEEP jumper configuration for PH EN Table 4 1 PH EN Control Mode EN PH OUT1 OUT2 Description LOW turn IN1 PWM Pot completely counter clockwise X L L Brake Low Side Slow Decay PWM set IN1 PW...

Страница 8: ...IN1 PWM pot in any position LOW turn PH IN2 PWM pot completely counter clockwise H L Forward OUT1 OUT2 HIGH turn EN IN1 PWM pot completely clockwise HIGH turn PH IN2 PWM pot completely clockwise L L B...

Страница 9: ...is shown in Table 4 4 Figure 4 4 MODE nSLEEP does not require a jumper for independent half bridge mode Table 4 4 Independent Half Bridge Control Mode INx OUTx Description LOW turn INx PWM pot comple...

Страница 10: ...not populated on the EVM The user needs to populate C11 with a desired value The current sense amplifier and the surrounding components R17 R18 and C6 are not populated on the EVM The user needs to p...

Страница 11: ...s populated and no power is being supplied to the EVM 2 Short EN IN1 and PH IN2 pins on J4 with a jumper See Figure 6 1 3 Short OUT1 and OUT2 at connector J3 with an unexposed small wire or short the...

Страница 12: ...nd low side driver for two loads DRV821xDSG VM 1 OUT1 2 OUT2 3 GND 4 VCC 8 MODE 7 IN1 6 IN2 5 Thermal Pad BDC 0 1 F CBulk VM 0 1 F Controller PWM VCC O X RLimit Figure 6 3 Half bridge mode used as a h...

Страница 13: ...a a jumper to enable the device 5 If the DRV821xPDSG is populated connect the MODE nSLEEP header to 3 3V to set nSLEEP logic high and enable the device The MODE pin becomes the nSLEEP pin for the PDSG...

Страница 14: ...ate the appropriate resistors Table 7 2 show the unique device ID for each supported device and the resistor combination to populate Table 7 1 Procedure For Soldering New Device and Passives to EVM Ne...

Страница 15: ...0DSG ID1 1 ID2 1 ID3 0 R5 R7 R14 DRV8220DRL ID1 1 ID2 1 ID3 1 R5 R7 R8 8 Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from Revi...

Страница 16: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

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