DRV10975ZPWPR datasheet(49/64 Pages) TI1

49 / 64 page

DRV10975, DRV10975Z

www.ti.com

SLVSCP2D – JANUARY 2015 – REVISED MARCH 2018

Product Folder Links: DRV10975

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Typical Application (continued)

9.2.1 Design Requirements

Table 10 provides design input parameters and motor parameters for system design.

Table 10. Recommended Application Range

MIN

TYP

MAX

UNIT

Motor voltage

6.5

BEMF constant

Phase to phase, measured while motor is coasting

0.001

1.4

V/Hz

Motor phase resistance

1 phase, measured ph-ph and divide by 2

0.3

Motor electrical constant

1 phase; inductance divided by resistance, measured ph-ph is

equal to 1 ph

100

5000

µs

Operating closed loop speed Electrical frequency

1000

Operating current

PGND, GND

0.1

1.5

Absolute maximum current

During start-up or lock condition

Table 11. External Components

COMPONENT

PIN 1

PIN 2

RECOMMENDED

CVCC

VCC

GND

10-µF ceramic capacitor rated for VCC

CVCP

VCP

VCC

0.1-µF ceramic capacitor rated for 10 V

CCP

CPP

CPN

0.1-µF ceramic capacitor rated for VCC × 2

LSW-VREG

VREG

47-µH ferrite inductor with 1.15-A current rating, 1.15-A saturation current, and < 1 Ω DC

resistance (buck mode)

RSW-VREG

VREG

39-Ω series resistor rated for ¼ W (linear mode)

CVREG

VREG

GND

10-µF ceramic capacitor rated for 10 V

CV1P8

V1P8

GND

1-µF ceramic capacitor rated for 5 V

CV3P3

V3P3

GND

1-µF ceramic capacitor rated for 5 V

RSCL

SCL

V3P3

4.75-kΩ pullup to V3P3

RSDA

SDA

V3P3

4.75-kΩ pullup to V3P3

RFG

V3P3

4.75-kΩ pullup to V3P3

DZener (For 3.3-V Vreg

mode)

GND

VREG

Only for DRV10975Z, Zener Voltage (Vz) = 4 V (±5%). Peak Power > 2.5 W, Leakage

Current <100 µA

DZener (For 5-V Vreg

mode)

GND

VREG

Only for DRV10975Z, Zener Voltage(Vz) = 6 V (±5%). Peak Power > 2.5 W, Leakage

Current <100 µA

9.2.2 Detailed Design Procedure

1. See the Design Requirements section and make sure your system meets the recommended application

range.

2. See the DRV10983 and DRV10975 Tuning Guide and measure the motor parameters.

3. See the DRV10983 and DRV10975 Tuning Guide. Configure the parameters using DRV10975 GUI, and

optimize the motor operation. The Tuning Guide takes the user through all the configurations step by step,

including: start-up operation, closed-loop operation, current control, initial positioning, lock detection, and

anti-voltage surge.

4. See the Programming Guide for the DRV10983 and Non-Volatile Memory section for burning tuned settings

into EEPROM.

5. Build your hardware based on Layout Guidelines.

6. Connect the device into system and validate your system solution.

DRV10975ZPWPR Datasheet(PDF) 49 Page - Texas Instruments

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