This Day On The Street
Continue to site
This account is pending registration confirmation. Please click on the link within the confirmation email previously sent you to complete registration.
Need a new registration confirmation email? Click here

Motor Pre-Driver From Diodes Incorporated Simplifies Speed Control

Diodes Incorporated (Nasdaq: DIOD), a leading global manufacturer and supplier of high-quality application specific standard products within the broad discrete, logic and analog semiconductor markets, today announced the ZXBM1021. This single-phase, brushless, DC motor pre-driver provides a small, feature-rich variable speed control solution for cooling fans, blowers, extractors, motors and pumps deployed in a variety of consumer and industrial products. By integrating an array of normally external components, including a PWM integrator and MOSFET buffers, this flexible pre-driver enables designers to greatly simplify system architecture and reduce overall board component count.

The pre-driver can closely control motor speed via the direct application of either an external PWM signal, DC voltage signal or thermistor network input. Through the integration of Hall bias and amplifier circuits, compatibility with all types of Hall effect sensor is assured. An open-collector frequency generator pin provides a tachometer output enabling external monitoring of rotation and speed. To prevent motor stalling or speed falling below a minimum value in the event of loss of control signals, the ZXBM1021 allows the setting of a minimum speed.

Offering high-side and low-side drive outputs, with 50mA sink and 100mA source/sink capability, the ZXBM1021 can be accurately matched to the needs of external H-bridge switches and motor powers without the need for additional buffering. A separate low-side output drive supply voltage pin also provides the ability to adjust external low-side MOSFET turn-on speed independently of turn-off speed to help minimize EMI noise and shoot-through.

An operating voltage range of 6.8V to 18V means the pre-driver will support 12V motors directly, and 24V and 48V motors via an external voltage regulator. With a programmable over current limit, the pre-driver is able to detect locked rotor conditions and protect the H-bridge and motor windings from over-heating or burn-out, instigating a soft start on removal of the rotor lock to minimize motor inrush current.

1 of 2

Check Out Our Best Services for Investors

Action Alerts PLUS

Portfolio Manager Jim Cramer and Director of Research Jack Mohr reveal their investment tactics while giving advanced notice before every trade.

Product Features:
  • $2.5+ million portfolio
  • Large-cap and dividend focus
  • Intraday trade alerts from Cramer
Quant Ratings

Access the tool that DOMINATES the Russell 2000 and the S&P 500.

Product Features:
  • Buy, hold, or sell recommendations for over 4,300 stocks
  • Unlimited research reports on your favorite stocks
  • A custom stock screener
Stocks Under $10

David Peltier uncovers low dollar stocks with serious upside potential that are flying under Wall Street's radar.

Product Features:
  • Model portfolio
  • Stocks trading below $10
  • Intraday trade alerts
14-Days Free
Only $9.95
14-Days Free
Dividend Stock Advisor

David Peltier identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.

Product Features:
  • Diversified model portfolio of dividend stocks
  • Updates with exact steps to take - BUY, HOLD, SELL
Trifecta Stocks

Every recommendation goes through 3 layers of intense scrutiny—quantitative, fundamental and technical analysis—to maximize profit potential and minimize risk.

Product Features:
  • Model Portfolio
  • Intra Day Trade alerts
  • Access to Quant Ratings
Real Money

More than 30 investing pros with skin in the game give you actionable insight and investment ideas.

Product Features:
  • Access to Jim Cramer's daily blog
  • Intraday commentary and news
  • Real-time trading forums
Only $49.95
14-Days Free
14-Days Free
AAPL $93.64 0.00%
FB $118.57 0.00%
GOOG $698.21 0.00%
TSLA $241.80 0.00%
YHOO $36.53 0.00%


Chart of I:DJI
DOW 17,891.16 +117.52 0.66%
S&P 500 2,081.43 +16.13 0.78%
NASDAQ 4,817.5940 +42.2360 0.88%

Free Reports

Top Rated Stocks Top Rated Funds Top Rated ETFs