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LB1877V Dataheets PDF



Part Number LB1877V
Manufacturers Sanyo
Logo Sanyo
Description Brushless Motor Driver
Datasheet LB1877V DatasheetLB1877V Datasheet (PDF)

Ordering number : ENN6200A LB1877V Monolithic Digital IC LB1877V Brushless Motor Driver with Speed Control for Portable Cassette Recorders 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. Package Dimensions unit: mm 3179A-SSOP20 20 11 1.0 4.4 1.6max [LB1877V] • • • • • Brushless sensorless motor drive (3-phase half-wave drive) Forward/reverse drive possible Built-in spe.

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Ordering number : ENN6200A LB1877V Monolithic Digital IC LB1877V Brushless Motor Driver with Speed Control for Portable Cassette Recorders 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. Package Dimensions unit: mm 3179A-SSOP20 20 11 1.0 4.4 1.6max [LB1877V] • • • • • Brushless sensorless motor drive (3-phase half-wave drive) Forward/reverse drive possible Built-in speed control function (voltage servo) Built-in reference voltage (0.9V) Soft switching 1 6.7 10 0.15 0.22 0.65 0.43 SANYO : SSOP20 Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max IO max Pd max Topr Tstg Conditions Ratings 6.0 0.5 0.35 –10 to +80 –40 to +150 Unit V A W °C °C Allowable Operating Ranges at Ta = 25°C Parameter Power supply voltage Symbol VCC Conditions Ratings 1.8 to 5.0 Unit V Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 80699RM(KI) No. 6200-1/7 0.1 0.5 Functions and Features 6.4 LB1877V Electrical Characteristics at Ta = 25°C, VCC = 2.4V Parameter Power supply current [S/S pin] S/S pin High level S/S pin Low level [DR pin] DR pin High level DR pin Low level [Internal reference voltage] Internal reference voltage Output current Reference voltage to power supply voltage characteristics Reference voltage to temperature characteristics [OSC pin] Charge current [COM pin] Sink current [LB pin] Charge current [VSP pin] Input voltage range Speed signal detection precision Speed signal relative precision Speed signal to power supply voltage characteristics Speed signal to temperature characteristics [IN+ pin] 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 Symbol ICC1 ICC2 SSH SSL DRH DRL Conditions S/S pin High level S/S pin Low level (standby) Start Stop Reverse Normal direction 1.5 0 1.5 0 0.8 0.9 min Ratings typ 4.0 max 20 VCC 0.3 VCC 0.3 Unit mA µA V V V V Measurement circuit 1 2 3 4 9 10 11 12 13 Target VREF Output current 0 µA IREF Output current 250 µA ∆VREF/∆VCC VCC 1.8 to 5.0V ∆IREF/∆Ta VCC 2.4V 1.0 V 25 mV/250 µA 5 mV/V +0.3 mV/°C – 0.1 Isc ICOM ILB VIN VCC = 2.4V VSP VIN = 1V RSP ∆VSP/∆VCC VCC 1.8 to 5.0V ∆VSP/∆Ta 3.0 17 4.5 0.15 420 –6 4.5 24 6.5 6.0 33 9.0 1.8 580 +6 2.5 +0.2 µA µA µA V mV % mV/V mV/°C 14 15 16 17 18 Target 19 Target 500 – 0.1 VIN+ IOUT VRI Vsat TTSD ∆TTSD VCC = 2.4V VIN+ = 1V RI = 10 kΩ U, V, Wout = 2.3V IO = 200 mA 0.1 25 10 30 20 VCC – 0.7 47.3 35 0.25 180 15 V µA mV V °C °C 20 21 22 23 Target Target Note: Items shown to be “Target” are not measured. Pd max – Ta 0.8 Allowable power dissipation, Pd max – W 0.6 0.4 0.35 0.2 0 –10 0 20 40 60 80 100 Ambient temperature, Ta – °C No. 6200-2/7 LB1877V Pin Description Pin number Pin name 20 UOUT 1 VOUT 2 WOUT 6 UB 5 VB 4 WB 18 VCC 7 OSC 8 COM 3 P – GND 9 GND 11 S/S 19 DR 12 VREF 14 VSP 13 IN+ 15 OUT 10 RI 16 FC 17 LB Function U-phase output V-phase output W-phase output U-phase base of 3-phase differential V-phase base of 3-phase differential W-phase base of 3-phase differential Power supply Startup oscillator pin Output waveform detection comparator voltage Output transistor and predriver ground Ground pin Start/stop pin Forward/reverse pin Reference voltage 0.9V Output waveform peak detection pin Error amp non-inverted pin Error amp output pin Current feedback resistor connection pin Frequency response adjustment pin Motor start lockup prevention. Connect to GND via capacitor Pin Assignment VOUT 1 WOUT 2 PGND 3 WB 4 VB 5 20 UOUT 19 DR 18 VCC 17 LB 16 FC LB1877V UB 6 OSC 7 COM 8 GND 9 RI 10 15 OUT 14 VSP 13 IN+ 12 VREF 11 S/S Top view No. 6200-3/7 0.1µF 0.1µF 0.1µF VCC UB VB WB Block Diagram Lockup prevention LB Startup detection UOUT VOUT Predriver 0.047µF Transfer current start logic Waveform detection WOUT DR Forward/ revers.


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