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参数资料
| 型号： | LB1696 |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 2.5 A, PDIP20 |
| 封装： | DIP-20 |
| 文件页数： | 6/9页 |
| 文件大小： | 290K |
| 代理商： | LB1696 |
1.
Hall input circuit
The Hall input circuit is a differential amplifier with hysteresis (32 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 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. Because the LB1696 has a regulator built in, it can be
used with a single power supply (VM power supply only). In this case, VCC (5.2 V typ.) can be supplied by connecting an external
transistor (NPN) and resistor to the VREG pin. If the regulator is not used, the VREG pin must be left open or connected to GND.
6.
Power supply stabilization capacitor
Great fluctuations in the VCC line may cause the reduced-voltage protector, etc. to malfunction. A capacitor (of several μF) needs
to be connected to the VCC line (between VCC and GND) for stabilization. Since a large switching current flows in the line, wiring
inductance componenet 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 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.
LB1696
No.5244-6/9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB1696-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 |
| LB16CGG01 | 功能描述:按钮开关 SPDT ON-ON GRAY ROUND BODY ONLY RoHS:否 制造商:C&K Components 触点形式:2 NC - 2 NO 开关功能:ON ? OFF 电流额定值:4 A 电压额定值 AC:12 V to 250 V 电压额定值 DC:12 V to 50 V 功率额定值: 安装风格:Through Hole 照明:Illuminated 照明颜色:None IP 等级:IP 40 端接类型:Solder 触点电镀:Silver 执行器:Square 盖颜色: 封装: 可燃性等级:UL 94 V-0 |
| LB16CGG01-05-BJ | 制造商:NKK 制造商全称:Nihon Kaiheiki Industry Co. Ltd. 功能描述:Standard Size Pushbuttons |
| LB16CGG01-12-BJ | 制造商:NKK 制造商全称:Nihon Kaiheiki Industry Co. Ltd. 功能描述:Standard Size Pushbuttons |
| LB16CGG01-12-JG | 制造商:NKK Switches 功能描述:STD SIZE PUSHBUTTON/ILLUMINATED/ 制造商:NKK Switches 功能描述:STD SIZE PUSHBUTTON/ILLUMINATED/SNAP-IN |
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