ROHM BD63860EFV-E2

BD63860EFV is a high-grade stepping motor driver with an internal 3-bit DAC, designed to drive bipolar stepping motors in eighth-step modes. The IC features several integrated protection circuits and achieves excellent thermal dissipation performance due to its low ON-resistance DMOS output transistors and high-dissipation power package. This IC is rated for 36 V maximum input voltage / 2.5 A maximum output current and employs a constant-current, PWM allowing for full-, half-, quarter- and eighth-step excitation modes. Additionally, the current decay mode can be freely set to a ratio of fast and slow decay, allowing the IC to adapt to the optimum control conditions for every motor. The single-power supply configuration allows for easy design and layout in the application.

• Single power supply input (Vin max. 36 V)
• Rated output current: 2.5 A (peak)
• Low ON-resistance DMOS output (0.8 Ω total across upper + lower FETs)
• Serial/CLK-IN drive mode (integrated translator circuit)
• PWM constant-current control (fixed chopping frequency)
• Built-in spike noise cancel function (external noise filter is unnecessary)
• Full-, half-, quarter- and eighth-step functionality
• AUTO decay mode
• Current decay mode switching function (linearly variable fast/slow decay ratio)
• Normal rotation & reverse rotation switching function
• Power-save function
• Built-in logic input pull-down resistor
• Power-on reset function
• Thermal shutdown circuit (TSD)
• Over-current protection circuit (OCP)
• Under-voltage lockout circuit (UVLO)
• Over-voltage lockout circuit (OVLO)
• Ghost Supply Prevention (protects against malfunction when power supply is disconnected)
• Micro-miniature, ultra-thin and high heat-radiation (exposed metal type) HTSSOP package

• Laser printers
• Multi-function printers
• Inkjet printers
• Scanners
• Mini printers
• PPCs
• Photo printers