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参数资料
| 型号： | LB11867FV |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.02 A, PDSO16 |
| 封装： | 0.225 INCH, SSOP-16 |
| 文件页数： | 6/8页 |
| 文件大小： | 214K |
| 代理商： | LB11867FV |
1.
Hall input circuit
The Hall input circuit is a differential amplifier with hysteresis (30 mV typ). The operating DC level must be within the
common-mode input voltage range (1.5 V to VCC – 1.8 V). An input level that is at least three times greater than the hysteresis
(from 120 to 160 mVp-p) is recommended to be independent of noise, etc. If the handling capability needs to be considered in
noise evaluation, etc., connect a capacitor (about 0.01 μF) between the Hall inputs IN
+ and IN–.
2.
Protectors
2-1. Reduced voltage protector
If VCC drops below the prescribed voltage (VLVSD), the output transistor on the sink side turns off. This protector prevents
malfunction which may occur when VCC is reduced.
2-2. Thermal shutdown protector
If the junction temperature exceeds the prescribed temperature (TSD), the output transistor on the sink side turns off. This
protector prevents the IC from being damaged by heat. Thermal design must be such that no operation is performed in other
modes than abnormality.
3.
FG output circuit
IN1, IN2, and IN3 Hall input signals are composited and wave shaped to be output. FG1 has the same frequency as for Hall input,
while FG2 3-fold as many.
4.
Forward/reverse controller
No forward/reverse (F/R) switching is assumed to be performed during motor running period. If F/R switching is performed
during motor running period, through current flows to output and ASO needs to be considered. It is recommended that F/R
switching be performed when the VM power supply is off (in motor stop mode).
5.
VCC and VM power supplies
If the supply voltage (VCC,VM) rise rate is fast when power is applied, through current flows to output and ASO needs to be
considered. The supply voltage rise rate must be such that
ΔVCC/Δt = 0.04 V/μsorlessand ΔVM/Δt = 0.16 V/μs or less. The
desirable order of applying power is VCC on first and then VM on. The desirable order of turning off power supply is VM off first
and then VCC off after motor stop. If, after VM is turned off, VCC is turned off during motor’s inertial running, some types of
motors have a possibility that VM voltage rises, exceeding the withstand voltage.
6.
Power supply stabilization capacitor
Great fluctuations in the VCC line may cause the reduced-voltage protector, etc. to malfunction. A capacitor (several μF) needs to
be connected to the VCC line (between VCC and GND) for stabilization. Since a large switching current flows in the VM line,
wiring inductance component, etc. fluctuates. Because there are also fluctuations in the GND line, a capacitor needs to be
connected to the VM line (between VM and GND) for stabilization thus preventing malfunction and keeping the withstand voltage
from being exceeded. Especially when the routing of wiring (VM,VCC, or GND) is long, be sure to connect capacitors with
adequate capacity for power line stabilization.
7.
Current limiter
The current limiter turns off the sink side output transistor when the output current-set current value (limiter value) is reached. The
output current is limited by the limit value. The RF pin is used to detect the output current. The output current is detected as
voltage by connecting resistor Rf between RF pin and GND. When the RF pin voltage reaches 0.5 V (typ), the current limiter
operates so that the output current is limited to the 0.5/Rf-set limiter value.
LB1694N
No.5243-6/8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB11867FV_11 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:For Fan Motor Variable Speed Single-phase Full-wave Pre-driver |
| LB11867FVL-MPB-E | 制造商:ON Semiconductor 功能描述:SINGLE PHASE MOTOR DRIVER - Ammo Pack |
| LB11867FVL-TLM-E | 制造商:ON Semiconductor 功能描述:SINGLE PHASE MOTOR DRIVER - Tape and Reel |
| LB11867FV-MPB-E | 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| LB11867FV-MPB-H | 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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