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参数资料
| 型号： | LB1860M |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1.5 A, PDSO14 |
| 封装： | MFP-14 |
| 文件页数： | 3/6页 |
| 文件大小： | 78K |
| 代理商： | LB1860M |
Block Diagram and Application Circuit
Truth Table
(
): LB1860M, 1861M
IN
+
IN
–
Ct
Rt1
Rt2
CR
OUT1
OUT2
RD
Mode
H
L
H
L
—
L
H
L
Full speed
L
H
L
—
L
H
L
Full speed
(H)
(L)
—
(H)
(L)
(H)
(L)
(Full speed)
(L)
(H)
—
(H)
(L)
(H)
(L)
(Full speed)
—
L
H
L
H
L
Low speed
—————
HHHH
Lock protection
Designer’s Notes
(1) Variable-speed circuit (Rt and Ct pins) — Refer to the application circuit diagram
.
The time constant gained by external components C2 and R2 is used to set the length of an ‘off’ operation time period after
phase switching. This means that the variable-speed operations can be performed by changing the ‘on’ operation time of each
phase through the duty control.
.
The sawtooth waveform signals are generated by the C2-R2 time constant. The voltage of this signal (Ct pin voltage) increases
from 1.3 V to 4.0 V (Vct) at each phase switching. That is, during this period, the driver becomes inactive (toff), in which
output circuit is turned off.
.
If VCC ^ 4.0 V, the driver IC remains active (ton) until the next phase switching. During this period, output circuit is turned on.
.
If the active drive time of each phase is assumed to ‘to’, the following relation can be established:
to =toff +ton
↑↑
Fixed
Rotation speed
constant
proportional constant
toff = 0.69 c C2 c R2 ........................................ 1
Constant
current
circuit
Output timing control
Unit (resistance:
, capacitance: F)
Figure 1
(
): MFP14S
0.47 to 10
LB1860,1860M,1861,1861M
No.3519-3/6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB1860M-TLM-E | 功能描述:马达/运动/点火控制器和驱动器 FAN MOTOR 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 |
| LB1860M-TLM-H | 功能描述:马达/运动/点火控制器和驱动器 FAN MOTOR DRIVER 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 |
| LB1861 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Variable Speed Fan Motor Driver |
| LB1861-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 |
| LB1861M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Variable Speed Fan Motor Driver |
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