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参数资料
| 型号： | LB1870M |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1 A, PDSO36 |
| 封装： | MFP-36 |
| 文件页数： | 2/11页 |
| 文件大小： | 108K |
| 代理商： | LB1870M |
No. 4356-10/11
LB1870, 1870M
10. Measuring the IC’s temperature rise
Thermocouple measurement
When using a thermocouple for temperature measurement, attach the thermocouple to a heat sink fin. This
temperature measurement technique is straightforward. However, a large measurement error occurs when the heat
generation is not in a steady state.
Measurement using IC internal diode characteristics
We recommend using the parasitic diode that exists between LD and ground in this IC. Remove the external
resistor when measuring. (Sanyo data indicates that ILD = –1 mA, about –1.9 mV/°C, when the LD pin is high.)
11. Servo constants
The servo constant calculation varies significantly with the motor used, and requires specialized know-how. Thus
this should be handled by the motor manufacturer. Sanyo can provide the required IC characteristics data for servo
constant calculation, and the motor manufacture should provide the frequency characteristics simulation data for the
specified filter characteristics.
Output current, IO –A
Vsat -- IO
Output
saturation
voltage,
Vsat
–
V
0
1
2
3
0
0.2
0.4
0.6
0.8
1.0
LD pin inflow current, ILD –mA
VLD sat -- ILD
LD
pin
voltage,
V
LD
(sat)
–
V
0
0.1
0.2
0.3
02
468
10
FGS pin current, IFGS –mA
VFGS (sat) -- IFGS
FDS
pin
voltage,
V
FGS
(sat)
–
V
0
0.1
0.2
0.3
01
234
5
Error amplifier output voltage, VCTL –V
V-type amplifier characteristics
V
RF
–V
0
0.2
0.4
0.5
0
1234
5
6
Total
Sink
Source
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB1871 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Three-Phase Brushless Motor Driver |
| LB1871M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Three-Phase Brushless Motor Driver |
| LB1872 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Polygon Mirror Scanner Driver IC |
| LB1875 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Polygon Mirror Motor Predriver IC |
| LB1876 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Three-Phase Brushless Motor Driver for Polygon Mirror Motors |
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