Application information

L6229Q

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Doc ID 15209 Rev 3

6

Application information

A typical application using L6229Q is shown in Figure 23. Typical component values for the

the L6229Q to improve the high frequency filtering on the power supply and reduce high

EN input to ground sets the shut down time when an over current is detected (see

layout. The sense resistor should be non-inductive resistor to minimize the dI/dt transients

across the resistor. To increase noise immunity, unused logic pins are best connected to 5 V

(high logic level) or GND (low logic level) (see pin description). It is recommended to keep

power ground and signal ground separated on PCB.

Table 9.

Component values for typical application

Component

Value

100 µF

100 nF

220 nF

220 nF

1 nF

10 nF

33 nF

100 nF

5.6 nF

10 nF

1N4148

1N4148

5 k6

Ω

1 k8

Ω

4 k7

Ω

1 M

Ω

1 k

Ω

100 k

Ω

0.6

Ω

33 k

Ω

47 k

Ω

10 k

Ω