TA8492P(2001) Просмотр технического описания (PDF) - Toshiba
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производитель
TA8492P Datasheet PDF : 11 Pages
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Functional Description
• Hall amp. circuit
Ha+
Ha−
TA8492P
The Hall amp is a high-gain amp. The input sensitivity is 20 mVp-p (min). Make sure that the input amplitude
does not exceed 400 mVp-p.
The common mode voltage VCMRH = 2.0 to VCC − 3.5 V.
Ha+
Ha−
20 mVp-p~400 mVp-p
• CW/CCW/Stop control circuit
3ST
In Reverse mode, the control input (3ST) voltage range is VRV = 0 to 0.4 V. However, keep the voltage as close to
the IC GND as possible (see the application circuit diagram).
Similarly, in Stop mode, keep the voltage as close to the IC VCC as possible.
In Forward mode, Toshiba recommend the input voltage be VCC/2.
• Output circuit
VS
La
La
(Upper)
(Lower)
The output circuit uses voltage control where the upper and lower output transistors are saturated and the
output current is controlled by the VS voltage. To reduce switching noise, connect a snubber capacitor to the
output circuit.
• Thermal shut-down circuit
The circuit turns off output when Tj = 160°C (typ.) (according to design specification)
2001-02-01 4/11
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