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FSB43004A Rev. 1.1

3rd Notes:

1. To avoid malfunction, the wiring of each input should be as short as possible. (less than 2~3 cm)

3. Input signal is High-Active type. There is a 5 kΩ resistor inside the IC to pull down each input signal line to GND. RC coupling circuits is recommended for the prevention of

5. Relays are used at almost every systems of electrical equipment of home appliances. In these cases, there should be sufficient distance between the CPU and the relays.

6. The zener diode should be adopted for the protection of ICs from the surge destruction between each pair of control supply terminals. (Recommended zener diode=24 / 1 W)

Figure 8. Typical Application Circuit

Fault

+15V

+5V

Motor

Gating UH

Gating VH

Gating WL

Gating VL

Gating UL

M

C

U

Current Sensing

LVIC

VFO

VCC

IN(UL)

IN(VL)

IN(WL)

COM

OUT(UL)

OUT(VL)

OUT(WL)

U (4)

V (3)

W (2)

P (1)

(12) COM

HVIC

VB(W)

COM

VS(W)

OUT(WH)

VB(V)

VS(V)

VB(U)

VS(U)

VCC

IN(WH)

IN(VH)

IN(UH)

OUT(VH)

OUT(UH)

VS(W)

VS(V)

VS(U)

Gating WH