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參數(shù)資料
| 型號(hào)： | LB1696 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3-phase Brushless Motor Driver |
| 中文描述： | 三相無(wú)刷電機(jī)驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 9/9頁(yè) |
| 文件大?。?/td> | 71K |
| 代理商： | LB1696 |
8.
Calculation of the IC’s internal power dissipation
Pd = (V
CC
×
I
CC
) + (V
M
×
I
M
) – (power dissipated by the motor coil)
9.
Measuring the increase in the IC’s temperature
Because the temperature of the IC chip cannot be measured directly, the temperature is normally measured using one of the
following methods.
9-1. Measurement using a thermocouple
In order to measure the temperature by using a thermocouple, mount the thermocouple on the fin. Although this method of
measurement is simple, the measurement error is great, if the rate of heat generation has not stabilized.
9-2. Measurement using the characteristics of a diode within the IC
It is recommended that the parasitic diode between FG1 and GND be used to measure the temperature of the IC. Set FG1
high (the ‘‘off’’ state), measure the parasitic diode voltage V
F
, and calculate the temperature based on the temperature
characteristics of the voltage V
F
.
(Sanyo’s data: I
F
= –1 mA, V
F
temperature characteristics: approximately –2 mV/°C)
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,
nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or
indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors
and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and
expenses associated with such use:
2
Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO
ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume
production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use
or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of December, 1995. Specifications and information herein are subject to change without notice.
Fig. 1
Current Limiter Operation Waveform (When Motor Is Locked)
C pin voltage
RF pin voltage
LB1696
No.5244-9/9
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