Power Combo Driver

The F-VHS Motor Driver L6287 COMBO IC includes a double three phase brushless Motor Driver plus a DC full bridge Motor Driver for VCR application. The package is SDIP42 (38+2+2 pin ground frame). The device is realized in BCD technology with power LDMOS output stages. The Gate drive for high side stages is provided by an internal Charge Pump with two external capaci- tors. The first three phase Motor Driver is devoted to the DRUMmotor control. The phase sequence update signal is provided in- itially by an external start-up signal (FSTART), whose frequency is internally divided by four, while, during normal operation, is provided by an optical tacho converter signal. This signal is used as Clock and reset for the state machine. The regulation of the speed is externally provided by means of PWM signal generated by the P (DPWM), without external sensing resistor. The feedback to the P unit is given by a suitable open drain output signal (PUD) synchronized by the internal state machine. The second three phase Motor Driver is devoted to the CAPSTAN control. While the DRUM will al- ways spin in a fixed direction, the CAPSTAN mo- tor needs a more sophisticated Logic to control the changes in spin direction. By STMicroelectronics
Part Manufacturer Description Datasheet Samples
ISL62871HRUZ-T Renesas Electronics Corporation $ Input Voltage Range: 3.3V to 25V $ Output Voltage Range: 0.5V to 3.3V $ Output Load up to 30A $ Extremely Flexible Output Voltage Programmability $$ 2-Bit VID (ISL62872) Selects Four Independent Setpoint Voltages $$ 1-Bit VID (ISL62871) Selects Two Independent Setpoint Voltages $$ Simple Resistor Programming of Setpoint Voltages $$ Accepts External Setpoint Reference Such as DAC $ ±0.75% System Accuracy: -10°C to +100°C $ One Capacitor Programs Soft-start and Setpoint Slew-rate $ Fixed 300kHz PWM Frequency in Continuous Conduction $ External Compensation Affords Optimum Control Loop Tuning $ Automatic Diode Emulation Mode for Highest Efficiency $ Integrated High-current MOSFET Drivers and Schottky Boot-Strap Diode for Optimal Efficiency $ Choice of Overcurrent Detection Schemes $$ Lossless Inductor DCR Current Sensing $$ Precision Resistive Current Sensing $ Power-Good Monitor for Soft-Start and Fault Detection $ Fault Protection $$ Undervoltage $$ Overvoltage $$ Overcurrent (DCR-Sense or Resistive-Sense Capability) $$ Over-Temperature Protection $$ Fault Identification by PGOOD Pull-Down Resistance $ Pb-Free (RoHS compliant)
ISL62872HRUZ-T Renesas Electronics Corporation $ Input Voltage Range: 3.3V to 25V $ Output Voltage Range: 0.5V to 3.3V $ Output Load up to 30A $ Extremely Flexible Output Voltage Programmability $$ 2-Bit VID (ISL62872) Selects Four Independent Setpoint Voltages $$ 1-Bit VID (ISL62871) Selects Two Independent Setpoint Voltages $$ Simple Resistor Programming of Setpoint Voltages $$ Accepts External Setpoint Reference Such as DAC $ ±0.75% System Accuracy: -10°C to +100°C $ One Capacitor Programs Soft-start and Setpoint Slew-rate $ Fixed 300kHz PWM Frequency in Continuous Conduction $ External Compensation Affords Optimum Control Loop Tuning $ Automatic Diode Emulation Mode for Highest Efficiency $ Integrated High-current MOSFET Drivers and Schottky Boot-Strap Diode for Optimal Efficiency $ Choice of Overcurrent Detection Schemes $$ Lossless Inductor DCR Current Sensing $$ Precision Resistive Current Sensing $ Power-Good Monitor for Soft-Start and Fault Detection $ Fault Protection $$ Undervoltage $$ Overvoltage $$ Overcurrent (DCR-Sense or Resistive-Sense Capability) $$ Over-Temperature Protection $$ Fault Identification by PGOOD Pull-Down Resistance $ Pb-Free (RoHS compliant)
ISL62870HRUZ-T Renesas Electronics Corporation $ Input Voltage Range: 3.3V to 25V $ Output Voltage Range: 0.5V to 3.3V $ Output Load to 30A $ Simple Resistor Programming for Output Voltage $ ±0.75% System Accuracy: -10°C to +100°C $ Capacitor Programming for Soft-Start Delay $ Fixed 300kHz PWM Frequency in Continuous Conduction $ External Compensation Affords Optimum Control Loop Tuning $ Automatic Diode Emulation Mode for Highest Efficiency $ Integrated High-Current MOSFET Drivers and Schottky Boot-Strap Diode for Optimal Efficiency $ Choice of Overcurrent Detection Schemes $$ Lossless Inductor DCR Current Sensing $$ Precision Resistive Current Sensing $ Power-Good Monitor for Soft-Start and Fault Detection $ Fault Protection $$ Undervoltage $$ Overvoltage $$ Overcurrent (DCR-Sense or Resistive-Sense Capability) $$ Over-Temperature Protection $$ Fault Identification by PGOOD Pull-Down Resistance $ Pb-Free (RoHS Compliant)
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L6287 Pinout, Pinouts
L6287 pinout,Pin out
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