AN440 datasheet(6/8 Pages) STMICROELECTRONICS

部件名	AN440

功能描述	QII and QIII TRIAC triggering with positive power supply

PDF	8 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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Experimental results

AN440

6/8

Experimental results

Figure 6 gives a typical oscillogram within the following conditions:

●

TRIAC = BTA08-600CW

●

IRMS = 2.12 A (load power: 500 W)

●

Line voltage: 230 V rms, 50 Hz

●

VCC = 5 V

●

R1 = 36 Ω

●

R2 = 300 Ω

●

C = 3.3 µF

Figure 6.

Triggering at zero current

The component values are given in the following table for different application cases.

Table 1.

Component values for 3 different cases. TRIAC: BTA08-600CW

(IGT = 35 mA)

IRMS = 2 A

Vcc = 5 V

IRMS = 5 A

Vcc = 5 V

IRMS = 5 A

Vcc = 10 V

t1MIN (µs)

87.5

R1MAX (Ω)

110

CMIN (µF)

3.3

1.76

0.62

R2MAX (Ω)

306

569

1622

Gatecurrent

div)

Gate current

(50 mA/div)

Anode

div)

Anode current

(500 mA/div)

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