BD6660FV

BD6660FV

  • 厂商:

    ROHM(罗姆)

  • 封装:

  • 描述:

    BD6660FV - 3-phase motor driver for CD-ROMs - Rohm

  • 详情介绍
  • 数据手册
  • 价格&库存
BD6660FV 数据手册
Motor driver ICs 3-phase motor driver for CD-ROMs BD6660FV The BD6660FV is low power consumption CD-ROM spindle driver that uses MOS transistor in the output. To meet the requirements for notebook computers, the thin power package SSOP-B28 is used and a PWM drive with a MOS processor output stage achieves an extremely low power consumption. FApplications Portable CD-ROMs, DVDs FFeatures 1) Direct PWM drive. 2) Built-in power save circuit. 3) Built-in current limiter circuit. 4) Built-in FG output. 5) Built-in Hall biasing. FAbsolute maximum ratings (Ta = 25_C) 6) 7) 8) 9) 10) Built-in reverse-rotation prevention circuit. Built-in short brake. Low power consumption with the output MOSFET. Built-in brake mode switching circuit. Built-in rotation detection pin. FRecommended operating conditions (Ta = 25_C) 769 Motor driver ICs FBlock diagram BD6660FV 770 Motor driver ICs FPin descriptions BD6660FV FInput and output circuits (1) Power save 771 Motor driver ICs (2) Torque amplifier BD6660FV (3) MODE1 (4) MODE2 (5) Output pin 772 Motor driver ICs (6) Hall bias pin BD6660FV (7) FG output / CP1 output / FR output (8) CP2 / VPUMP output 773 Motor driver ICs FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 5V, VM = 5V) BD6660FV 774 Motor driver ICs BD6660FV 775 Motor driver ICs FApplication example BD6660FV 776 Motor driver ICs FOperation notes (1) Brake mode (MODE1) logic The brake mode is switched by MODE1 pin and the operation is shown in Table-1 below. BD6660FV (3) PWM operation By the voltage potential difference between EC and ECR, the ON duty when switching the low level output transistor changes as shown in Fig. 11 below. (ECR = 1.65V) (2) MODE2 logic The FG output is switched by MODE2 pin and the operation is shown in Table-2 below. (4) Current limiter operation When the RNF voltage becomes 0.2V (Typ.), the current limiter circuit activates and limits the PWM ON duty. At this time the output current Iomax is limited to: Iomax approx. 0.2 / RNF 777 Motor driver ICs (5) OSC oscillator circuit By connecting a capacitor to the OSC pin, the charging and discharging of the capacitor generates a triangular wave as that shown in Fig. 12. (C = 470pF and f = 100kHz (Typ.)) BD6660FV (6) Charge pump The boost voltage (VPUMP) is VM ) VCC. Therefore, to prevent (VM ) VCC) from increasing much over ratings, set the VM and VCC voltages. 778 Motor driver ICs (7) Timing chart BD6660FV 779 Motor driver ICs FExternal dimensions (Units: mm) BD6660FV 780
BD6660FV
1. 物料型号:BD6660FV,这是一个用于CD-ROMs的三相电机驱动IC。

2. 器件简介: - BD6660FV是一个低功耗CD-ROM主轴驱动器,使用MOS晶体管作为输出。 - 为了满足笔记本电脑的要求,使用了薄型功率封装SSOP-B28。 - 通过PWM驱动和MOS处理器输出阶段实现极低功耗。

3. 引脚分配: - 1号引脚:A3,输出。 - 2号引脚:A2,输出。 - 3号引脚:A1,输出。 - 4号引脚:RNF1,用于连接输出电流检测的电阻。 - 5号引脚:RNF2,用于连接输出电流检测的电阻。 - 6号引脚:VM,电机电源。 - 7号引脚:Vcc,电源。 - 8号引脚:GND,地。 - 9号引脚:H1+,霍尔信号输入。 - 10号引脚:H1-,霍尔信号输入。 - 11号引脚:H2+,霍尔信号输入。 - 12号引脚:H2-,霍尔信号输入。 - 13号引脚:Ha+,霍尔信号输入。 - 14号引脚:H3-,霍尔信号输入。 - 15号引脚:D-GND,数字地。 - 16号引脚:VH,霍尔偏置。 - 17号引脚:CNF,用于连接相位补偿的电容器。 - 18号引脚:OSC,用于连接振荡器的电容器。 - 19号引脚:VPUMP,充电泵输出。 - 20号引脚:CP1,用于连接充电泵的电容器1。 - 21号引脚:CP2,用于连接充电泵的电容器2。 - 22号引脚:MODE1,制动模式开关。 - 23号引脚:ECR,输出电压控制参考。 - 24号引脚:Ec,输出电压控制。 - 25号引脚:FG,FG输出。 - 26号引脚:PS,省电。 - 27号引脚:MODE2,FG输出切换。 - 28号引脚:FR,旋转方向传感器。

4. 参数特性: - 工作电压:Vcc 4.5~5.5V,VM 3~6.5V。 - 功耗:Pd 1020mW(在25°C时,每增加1°C,功耗减少8.16mW)。 - 工作温度范围:-20~+75℃。 - 存储温度范围:-55~+150℃。 - 输出电流:IoMAX 1000mA。

5. 功能详解: - 直接PWM驱动。 - 内置省电电路。 - 内置电流限制器。 - 内置FG输出。 - 内置霍尔偏置。 - 内置防止反转电路。 - 内置短制动。 - 低功耗输出MOSFET。 - 内置制动模式切换电路。 - 内置旋转检测引脚。

6. 应用信息: - 便携式CD-ROMs、DVDs。

7. 封装信息: - SSOP-B28封装。
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