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| 型号： | LB1824 |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 2.5 A, PDIP28 |
| 封装： | HEAT SINK, SDIP-28 |
| 文件页数： | 2/10页 |
| 文件大小： | 116K |
| 代理商： | LB1824 |
P = P2 = 0.19 W
At start time:
P = P1 + P3 + P4 + P5 = 6.51 W
(for an output on duty of 100%)
16. Techniques for measuring the IC temperature increase
Measurement with a thermocouple
When using a thermocouple to measure the IC temperature, the thermocouple should be attached to a fin. While
this measurement technique is simple, it is subject to large measurement errors if the IC is not in a stable heat
generation state.
Measurement using the characteristics of an IC internal diode
We recommend using the parasitic diode between INTIN and GND internal to the IC. (According to our data, ID =
1 mA with about
1.8 mV/°C) Remove the external resistor when making the measurements.
17. Servo constants
When calculating the servo constants, they will be heavily dependent on the motor actually used. Since experience is
generally required, these constants should be determined by the motor manufacturer. We can provide the IC
characteristics data required for the servo constants calculations as well as frequency characteristics simulation data
for the filter constants set by the motor manufacturer.
If the resistor connected between DOUT and INTIN (R10) is too small, C8 and C9 are too large, and R10 is too large,
speed errors will be likely to occur due to the speed discriminator cutoff current and the integrator input current.
Therefore, a 10 to 100 k
resistor should be used. If the resistor connected between P
OUT and INTIN (R8) is too
small, the PLL system influence will become too large and the in-phase pull-in to locking will get worse. Therefore,
do not make this value too small. (We recommend 1 M
when R10 is 75 k.) First set the constants just for the
speed discriminator system (R9, R10, C8 and C9) and then set the R8 value for the PLL system.
LB1824
PS No. 4264-10/10
This catalog provides information as of July, 1999. Specifications and information herein are subject to
change without notice.
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products (including technical data, services) described or contained
herein are controlled under any of applicable local export control laws and regulations, such products must
not be exported without obtaining the export license from the authorities concerned in accordance with the
above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to use.
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.
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| LB1825 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Three-Phase Brushless Motor Driver |
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