Unipolar Driver
Unipolar Driver ICs
SI-7300A and SI-7330A
s Ratings
Absolute maximum rating Type No. SI-7300A SI-7330A Supply voltage (...
Description
Unipolar Driver ICs
SI-7300A and SI-7330A
s Ratings
Absolute maximum rating Type No. SI-7300A SI-7330A Supply voltage (V) VCC1 48 42 VCC2 8 8 Output current (A) Io 1.7 3.2 Junction temperature (°C) Tj +125 +125 Operating ambient temperature (°C) Top –20 to +80 –20 to +80 (Ta = 25 °C) Storage temperature (°C) Tstg –30 to +100 –30 to +100
s Characteristics
Electrical characteristics Supply voltage Output current VCC2 input current Oscillation frequency External zener diode breakdown voltage (V) VZ min VCC1 +5 VCC1 max 70 43
(Ta = 25 °C) Input excitation signal (active high) Input voltage (V) High level input current (mA) Low High Io= Io= Io= Io= level level 0.5A/ø 1.0A/ø 1.5A/ø 3.0A/ø (OFF) (ON) VIL max 0.8 0.3 V IH typ 2.8 1.8 lIH lIH lIH lIH min max min max min max min max 2.2 10.0 3.0 10.0 4.9 10.0 5 100 15 100 40 100
(V) VCC1 Type No. SI-7300A SI-7330A VCC2 IO
(mA/ø) IOM*
(mA) lCC2 max 45 45 min 19 19
(kHz) F typ max 21 21 25 25
min typ max min typ max min max min typ max 15 15 30 30 42 4.5 35 4.5 5 5 5.5 200 1500 535 580 625 5.5 200 3000 535 580 625
* Measurement conditions are as shown in the external connection diagram.
s Block diagram
SI-7300A
Auxiliary power supply VCC2
Reference voltage RX Trigger pulse generator circuit Excitation signal amplifier Excitation signal (4-phase) Current detection resistor Rs Rx : Variable current resistor Counter EMF canceller Comparator amplifier Main power supply VCC1 Zener diode for cancelling counter EMF ZD
Current control...
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