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参数资料
| 型号： | LB1948M |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, PDSO10 |
| 封装： | 6.40 X 5 MM, MFP-10 |
| 文件页数： | 4/6页 |
| 文件大小： | 86K |
| 代理商： | LB1948M |
LB1948M
No.7714-4/6
Design Documentation
(1) Voltage magnitude relationship
There are no restrictions on the magnitude relationships between the voltages applied to VCC and IN1 to IN4.
(2) Parallel connection
The LB1948M can be used as a single-channel H-bridge power supply by connecting IN1 to IN3, IN2 to IN4, OUT1
to OUT3, and OUT2 to OUT4 as shown in the figure. (IOmax = 1.6A, VO(sat) = 0.6V (typical) at IO = 800mA)
1VCC
2 IN1
3 IN2
4 IN3
5 IN4
10
9
8
7
6
OUT1
OUT2
OUT3
OUT4
GND
LB1948M
M
(3) Observe the following points when designing the printed circuit board pattern layout.
Make the VCC and ground lines as wide and as short as possible to lower the wiring inductance.
Insert bypass capacitors between VCC and ground mounted as close as possible to the IC.
Resistors of about 10K must be inserted between the CPU output ports and the IN1 to IN4 pins if the
microcontroller and the LB1948M are mounted on different printed circuit boards and the ground potentials differ
significantly.
Thermal Shutdown Temperature
(1) Thermal shutdown temperature
The thermal shutdown temperature Ttsd is 200
± 20°C with fluctuations.
(2) Thermal shutdown operation
The operation of the thermal shutdown circuit is shown in the figure below.
When the chip temperature Tj is in the direction of increasing (solid line), the output turns off at approximately 200
°C.
When the chip temperature Tj is in the direction of decreasing (dotted line), the output turns on (returns) at approximately
125
°C.
100
120
140
160
180
200
220
0
14
12
10
8
6
4
2
VCC = 12V
100
°C 220°C
220
°C 100°C
Return
TSD operation
Chip temperature, Tj --
°C
Output
voltage,
V
O
--
V
LB1948M Thermal shutdown reference chart
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB1948M_09 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:12V Low Saturation Voltage Drive |
| LB1948MC | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Monolithic Digtal IC 12V Low Saturation Voltage Drive Forward/Reverse Motor Driver |
| LB1948MC-AH | 功能描述:马达/运动/点火控制器和驱动器 Bidirectional Motor Driver IC 12V Oper 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 |
| LB1948MC-BH | 功能描述:马达/运动/点火控制器和驱动器 Integrated Circuits (ICs) PMIC - Motor and Fan Controllers, Drivers - IC MTR DVR FOR/REV MFP10S 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 |
| LB1948MCGEVB | 功能描述:电源管理IC开发工具 EVABORD FOR LB1948MC RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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