lb1877v Sanyo Semiconductor Corporation, lb1877v Datasheet
lb1877v
Available stocks
Related parts for lb1877v
lb1877v Summary of contents
Page 1
... Ordering number : ENN6200A Overview The LB1877V is a motor driver well suited for driving motors of minicassette recorders, headphone stereos, and microcasette recorders that use a 3V power supply. Functions and Features • Brushless sensorless motor drive (3-phase half-wave drive) • Forward/reverse drive possible • ...
Page 2
... Input voltage range [OUT pin] Output current [RI pin] Current detection precision [U, V, WOUT pins] Output saturation voltage [Thermal] Thermal protection trigger temperature Temperature hysteresis width Note: Items shown to be “Target” are not measured. LB1877V = 2.4V CC Symbol Conditions I 1 S/S pin High level ...
Page 3
... FC Frequency response adjustment pin 17 LB Motor start lockup prevention. Connect to GND via capacitor Pin Assignment VOUT WOUT PGND OSC COM GND LB1877V Function LB1877V Top view UOUT VCC OUT 15 VSP 14 13 ...
Page 4
... Block Diagram Transfer current Lockup prevention LB1877V Predriver Speed detection start logic Waveform detection Forward/ reverse Current detection No. 6200-4/7 ...
Page 5
... Pin number 18 VCC 1.8V to 5.0V 9 GND 12 VREF 0.7V to 0.9V OSC 1V to Vcc 7 8 COM 1.3V to Vcc 14 VSP 0.1V to Vcc – 0.7V 13 IN+ OUT LB1877V Equivalent circuit 12 50k 7 200 To comparator input 10k To WOUT To VOUT To UOUT 1k 20k 20k 20k To U,V,WOUT 10k 10k 14 5k 200 Drive current 10k 200 13 ...
Page 6
... Voltage input not allowed 11 S Vcc Vcc 20 UOUT VOUT 2 WOUT – GND LB1877V Equivalent circuit Drive current pin 16 80k 50k 50k 11 50k 50k 100k 17 200 Unit (Resistance: , capacitance: F) Pin function Frequency characteristics adjustment pin ...
Page 7
... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of August, 1999. Specifications and information herein are subject to change without notice. LB1877V Equivalent circuit ...