Melexis NV has launched the MLX80153 half-bridge motor controller IC including extensive application specific firmware libraries. The MLX80153 is a new member in Melexis’ portfolio of dc and BLDC automotive motor controller solutions, which enables dc motor suppliers to introduce on-demand control, required by emissions legislation, with minimum development effort. The MLX80153 is the next generation of the 80151 OTP (One Time Programmable) half-bridge motor controller, offering more program and RAM memory. Like the previous generation MLX80151, the focus applications are pwm-controlled dc engine cooling fans, HVAC blowers and fuel pumps. Additionally the MLX80153’s two high-side drivers with individual pwm control are able to individually control dual engine cooling fans with separate power control and partial stall detection.
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The integrated dead time control of the MLX80153 is designed to realize cost effective full NFET half-bridge solutions, reducing peak on-board dissipation by as much as 30% compared to solutions using freewheeling diodes. Motor currents up to 30A can be controlled on full SMD PCB’s using cost-effective and reliable DPAK NFETs. A double charge pump avoids the need for logic level transistors. Extensive (c-code) software libraries and application software examples, including examples for partial stall detection using current limiting, or using BEMF monitoring, are available.
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For development a pin compatible Flash variant (MLX80154) is available. The user friendly development kit includes evaluation boards and a pwm master with USB interface. The MLX80153 is qualified in TSSOP28 exposed pad package for operation up to Tj=150C. Development samples and tools are currently available for qualified customers and applications. Contact our sales organization for a consultation on these motor control solutions.
source: http://www.powerpulse.net/story.php?storyID=31220
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