MIC5013 datasheet(10/15 Pages) MICREL

10 / 15 page

MIC5013

Micrel, Inc.

MIC5013

July 2005

Fault

V+

Gate

MIC5013

Gnd

Thresh

Sense

Source

Input

IRFZ40

10µF

20kΩ

100Ω

22mΩ

LOAD

12V

10kΩ

100nF

1N4148

100kΩ

MPSA05

CPSL-3 (Dale)

Applications Information (Continued)

Fault

V+

Gate

MIC5013

Gnd

Thresh

Sense

Source

Input

IRFP044 (2)

10µF

20kΩ

100Ω

5mΩ

LOAD

24V

15kΩ

OFF

330kΩ

100kΩ

24V

LVF-15 (RCD)

CR2943-NA102A

(GE)

100kΩ

1kΩ

To MIC5013 Input

100kΩ

4N35

33kΩ

33pF

MPSA05

15V

10mA

Control Input

for only a short period of time (≤25ms). If the load is left

energized for a long period of time (>25ms), the bootstrap

capacitor will discharge and the MIC5013 supply pin will

fall to V+ = VDD –1.4. Under this condition pins 3 and 4 will

be held above V+ and may false trigger the over-current

circuit. A larger capacitor will lengthen the maximum “on”

time; 1000µF will hold the circuit up for 2.5 seconds, but

requires more charge time when the circuit is turned off.

The optional Schottky barrier diode improves turn-on time

on supplies of less than 10V.

Figure 7. 10-Ampere

Electronic Circuit Breaker

Figure 8. Improved

Opto-Isolator Performance

Figure 9. 50-Ampere

Industrial Switch

MIC5013 Datasheet(PDF) 10 Page - Micrel Semiconductor

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