TPD4113K

2006-11-01

10

External Parts

Standard external parts are shown in the following table.

Part

Recommended Value

Purpose

Remarks

25 V/2.2

μF

Bootstrap capacitor

(Note 1)

0.62

Ω ± 1% (1 W)

Current detection

(Note 2)

25 V/10 μF

(Note 3)

25 V

/0.1μF

(Note 3)

16 V/1

μF

(Note 3)

16 V/1000 pF

(Note 3)

5.1 k

Ω

FG pin pull-up resistor

(Note 4)

Note 1: The required bootstrap capacitance value varies according to the motor drive conditions. The capacitor is

Do not exceed a detection current of 1 A when using this product.

Note 3: When using this product, some adjustment is required in accordance with the use environment. When

mounting, place as close to the base of this product leads as possible to improve the ripple and noise

elimination.

Note 4: The DIAG pin is open drain. Note that when the DIAG pin is connected to a power supply with a voltage

DIAG pin is not used, connect to the GND.

Handling precautions

(1)

Note that if the power supply is switched off as described above, this product may be destroyed if the

a relay or similar while the motor is still running.

(2)

The RS pin connecting the current detection resistor is connected to a comparator in the IC and also

functions as a sensor pin for detecting over current. As a result, over voltage caused by a surge

voltage, for example, may destroy the circuit. Accordingly, be careful of handling the IC or of surge

voltage in its application environment.