IR2238Q データシートの表示（PDF） - International Rectifier

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IR2238Q

3-PHASE AC Motor Controller IC

International Rectifier 

IR2238Q

AC Electrical Characteristics cont.

VBIAS (VCC, VBS) = 15V, VS1,2,3 = VSS, TA = 25oC and CL = 1000 pF unless otherwise specified.

Symbol

Definition

Propagation Delay Characteristics

tEN

SD negation to output enable propagation delay

tonBR BR output turn-on propagation

toffBR BR output turn-off propagation

trBR

BR output turn-on rise time

tfBR

BR output turn-off fall time

Deadtime/Delay Matching Characteristics

DT

Deadtime

MDT

PM

VM

Deadtime asymmetry skew, any of

DTLoff1,2,3-DTHoff1,2,3

PWM propagation delay matching max {ton/toff}

- min {ton/toff}, (ton/toff are applicable to all six

channels)

Voltage feedback delay matching, I any of

tVFHL1,2,3, tVFHH1,2,3, tVFLL1,2,3, tVFLH1,2,3

- any of tVFHL1,2,3, tVFHH1,2,3, tVFLL1,2,3,

tVFLH1,2,3 I

Min. Typ. Max. Units Test Conditions

—

600

900

VIN =on

VDESAT=0V, Fig.10

—

110

200

—

80

150

—

235

400 ns

Figure 5

—

130

200

900 1050 1200

Figure 8

external resistor=39kΩ

76

100 124

Figure 8

external resistor=0kΩ

4500 5000 5500

Figure 8

external resistor=220kΩ

—

—

145 ns

DT=1000nsec.

Fig.8

—

—

125

DT=1000nsec.

Fig.5

—

—

125

Input pulse width

>400 nsec

Figure 9

6

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