Brushless DC motor drive circuit
Brushless DC motor drive circuit
Brushless DC motor drive circuit
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Philips Semiconductors<br />
Product specification<br />
<strong>Brushless</strong> <strong>DC</strong> <strong>motor</strong> <strong>drive</strong> <strong>circuit</strong><br />
TDA5142T<br />
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT<br />
FG (push-pull)<br />
V OL LOW level output voltage I O = 1.6 mA − − 0.4 V<br />
V OH HIGH level output voltage I O = −60 µA V P − 0.3 − V<br />
t THL HIGH-to-LOW transition time C L = 50 pF; R L =10kΩ − 0.5 − µs<br />
ratio of FG frequency and<br />
commutation frequency<br />
− 1 −<br />
CAP-ST<br />
I sink output sink current 1.5 2.0 2.5 µA<br />
I source output source current −2.5 −2.0 −1.5 µA<br />
V SWL LOW level switching voltage − 0.20 − V<br />
V SWH HIGH level switching voltage − 2.20 − V<br />
CAP-TI<br />
I sink output sink current − 28 − µA<br />
I source output source current 0.2 V < V CAP-TI < 0.3 V − −57 − µA<br />
0.3V
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