TMP821

SLDS152A – JANUARY 2008 – REVISED MAY 2015

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Typical Application (continued)

8.2.2 Detailed Design Procedure

Pins:

•

Connect hall sensor differential inputs to IN+ and IN–.

•

Connect LD to Lock Detection capacitor.

•

Connect drive outputs to the gates of the H bridge switches.

•

Pull up on FG.

Power Supply:

•

Make sure the power supply is set with sufficient current limit at the decided motor voltage (12 V and 1 A are

shown in Application Curves).

Build the circuit with recommended connections at the pins.

Test the motor circuit with hardware connected to it.

8.2.3 Application Curves

Figure 6. Start-up at 12 V (Soft Start)

Figure 7. Motor Outputs and DC Current

Figure 8. Lock Detection and Retries

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