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參數(shù)資料
| 型號(hào)： | LB1922 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Three-Phase Brushless Motor Driver for Office Automation Applications |
| 中文描述： | 三相無(wú)刷電機(jī)的辦公自動(dòng)化應(yīng)用程序 |
| 文件頁(yè)數(shù)： | 8/10頁(yè) |
| 文件大?。?/td> | 123K |
| 代理商： | LB1922 |
16. Techniques for measuring IC internal temperature increases
Thermocouple measurement
When using a thermocouple for temperature measurement, the thermocouple is attached to a fin on the heat sink.
While this measurement technique is simple, it suffers from large measurement errors when the thermal
generation process is not at steady state.
Measurement using IC internal diode properties
We recommend using the properties of the parasitic diode that exists between INT.IN and ground for measuring
the temperature of this IC. (Sanyo data: For ID = 1 mA, the temperature characteristic is about 1.8 mV/°C.) The
external resistor must be disconnected when measuring the temperature.
17. Servo constants
The servo constant calculations depend strongly on the characteristics of the motor used and require special expertise.
Normally, the motor manufacturer will set up these constants. Sanyo can provide the data required for the servo
constant calculations. This data includes both the characteristics data for this IC as well as the frequency
characteristics simulation data for the filter characteristics set up by the motor manufacturer.
If the resistor (R10) between DOUT and INT.IN is too small, then C8 and C9 will become excessively large, and if
R10 is too large, then speed errors due to the speed discriminator shutoff current and the integrator input current will
become more likely to occur. Therefore, this resistor should have a value in the range 10 to 100 k
. If the resistor
(R8) between P
OUT
and INT.IN is too small, the influence of the PLL system will become excessive and the lock
state pull-in characteristics will be degraded. Thus the value of this resistor must not be made too small. We
recommend a value of around 1 M
when R10 is 75 k
. Applications must be designed by first setting up only the
speed discriminator system (R9, R10, C8, and C9) and only then setting up the PLL system resistor R8.
No. 5679-8/10
LB1922
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LB1923M | Power Brushless Motor Pre-Driver IC for OA Equipment |
| LB1924 | Power Brushless Motor Driver IC for Office Automation Equipment |
| LB1929 | Three-Phase Brushless Motor Driver for OA Products |
| LB1930 | Single-Channel Low Saturation Voltage Forward/Reverse Motor Driver |
| LB1930M | Single-Channel Low Saturation Voltage Forward/Reverse Motor Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB1923M | 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Power Brushless Motor Pre-Driver IC for OA Equipment |
| LB1923M-MPB-E | 制造商:ON Semiconductor 功能描述:3PHASE MOTOR PRE-DRIVER - Trays |
| LB1923M-TLM-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| LB1924 | 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:Power Brushless Motor Driver IC for Office Automation Equipment |
| LB1927 | 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:For Office Automation Equipment 3-phase Brushless Motor Driver |
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