A3950SLP-T Allegro Microsystems Inc, A3950SLP-T Datasheet
A3950SLP-T
Specifications of A3950SLP-T
Related parts for A3950SLP-T
A3950SLP-T Summary of contents
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Features and Benefits ▪ Low R outputs DS(on) ▪ Overcurrent protection ▪ Motor lead short-to-supply protection ▪ Short-to-ground protection ▪ Sleep function ▪ Synchronous rectification ▪ Diagnostic output ▪ Internal undervoltage lockout (UVLO) ▪ Crossover-current protection Packages: Package LP, 16 ...
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... A3950 Selection Guide Part Number A3950SLP-T 96 pieces / tube A3950SLPTR-T 13 in. reel, 4000 pieces / reel A3950SEU-T 92 pieces / tube A3950SEUTR-T 7 in. reel, 1500 pieces / reel Absolute Maximum Ratings Characteristic Load Supply Voltage Output Current Sense Voltage VBB to OUTx OUTx to SENSE Logic Input Voltage ...
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A3950 VREG 0.22 μ MODE PHASE V DD ENABLE 5 kΩ SLEEP 5 kΩ NFAULT Terminal List Table Name EU NFAULT 15 MODE 16 PHASE 1 GND 2, 12 SLEEP 3 ENABLE 4 OUTA 6 SENSE 7 VBB ...
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A3950 ELECTRICAL CHARACTERISTICS 25°C, V Characteristics Motor Supply Current PHASE, ENABLE, MODE Input Voltage SLEEP Input Voltage PHASE, MODE Input Current 1 ENABLE Input Current SLEEP Input Current NFAULT Output Voltage Input Hysteresis, except SLEEP Output ...
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A3950 SLEEP ENABLE PHASE MODE OUTA OUTB 0 I OUTX OutA 3 A Charge pump and VREG power-on delay (≈200 μs) DMOS Full-Bridge Motor Driver Timing Diagram: PWM Control ...
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A3950 V OUTA High-Z V OUTB I PEAK I OCP I OUTx ENABLE, Source or Sink BLANK Charge Pump Counter NFAULT Motor lead short condition DMOS Full-Bridge Motor Driver Timing Diagram: Overcurrent Control t t BLANK OCP Normal dc motor ...
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A3950 Device Operation. The A3950 is designed to operate one DC motor. The output drivers are all low R drivers that feature internal synchronous rectification to reduce power dissipation. PHASE and ENABLE inputs allow two-wire control with an additional MODE ...
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A3950 NFAULT low, but does not disable the operation of the chip. If the die temperature increases further, to approximately 175°C, the full-bridge outputs will be disabled until the internal temperature falls below a hysteresis of 15°C. Overcurrent Protection. Referring ...
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A3950 Power Dissipation. First order approximation of power dissipation in the A3950 can be calculated by first examining the power dissipation in the full-bridge during each of the operation modes. The A3950 features synchronous rectifica- tion, a feature that effectively ...
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A3950 SENSE Pin. A low value resistor can be placed between the SENSE pin and ground for current sensing purposes. To mini- mize ground-trace IR drops in sensing the output current level, the current sensing resistor should have an independent ...
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A3950 All dimensions reference only, not for tooling use. (reference JEDEC MO-220WGGC-4) Dimensions in millimeters U.S. Customary dimensions (in.) in brackets, for reference only Dimensions exclusive of mold flash, gate burrs, and dambar protrusions Exact case and lead configuration at ...
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A3950 LP Package, 16 Pin TSSOP with Exposed Thermal Pad 16X 0.10 [.004] C 0.30 .012 16X 0.19 .007 0.10 [.004 0.45 .018 NOM 1.65 .065 NOM 2X0.20 .008 MIN The products described here are manufactured ...