LA6595T [SANYO]
BTL Drive Single-Phase Full-Wave Fan Motor Driver; BTL驱动单相全波风扇电机驱动器
| 型号： | LA6595T |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | BTL Drive Single-Phase Full-Wave Fan Motor Driver |
| 文件： | 总4页 (文件大小：77K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA1433
Monolithic Linear IC
BTL Drive Single-Phase Full-Wave
Fan Motor Driver
LA6595T
Overview
The LA6595T is a single-phase bipolar fan motor driver that achieves quite operation, power savings, silent operation and
high efficiency that suppresses reactive current through BTL output linear drive. It provides lock protection and rotation
detection circuits on chip, and is optimal for applications that require high reliability and low noise, such as notebook
personal computers, power supplies in consumer electronic equipment, car audio, and CPU cooling systems.
Features
• BTL output single-phase full-wave linear drive (gain resistor : 1 to 360kΩ, 51dB)
• Supports low-voltage drive and features a wide usable voltage range (2.2 to 14.0V)
• Low saturation output (high side + low side saturation voltage : V sat (total) = 1.2V (typical), I = 200mA)
O
O
• Built-in lock protection and automatic return circuits
• Built-in RD (Rotation Detection) output
• Thermal protection circuit
• Small-sized, high thermal capacity package
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
Symbol
max
Conditions
Ratings
Unit
V
V
I
15
CC
Output current
max
max
0.5
15
A
OUT
Output voltage
V
V
I
V
OUT
RD output pin output withstand voltage
RD output current
max
15
V
RD
max
10
mA
mW
°C
°C
RD
Allowable power dissipation
Operating temperature
Storage temperature
Pd max
Topr
Mounted on a specified board*
400
-30 to +90
-55 to +150
Tstg
* Specified board : 114.3mm × 76.1mm × 1.6mm, glass epoxy board.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. 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.
40809 MS 20090323-S00009 No.A1433-1/4
LA6595T
Recommended Operating Conditions at Ta = 25°C
Parameter
Supply voltage
Symbol
Conditions
Ratings
Unit
V
V
V
2.2 to 14.0
0 to V -1.5
CC
Common-phase input voltage range
of hall input
V
ICM
CC
Electrical Characteristics at Ta = 25°C, V
= 12V, Unless otherwise specified.
CC
Ratings
typ
Parameter
Circuit current
Symbol
1
Conditions
Unit
min
max
I
I
I
Drive mode (CT = low)
mA
mA
µA
3
2.5
0.9
6
9
CC
2
Lock protection mode (CT = high)
5
7.5
1.5
CC
Lock detection capacitor charge
current
1
1.2
CT
Capacitor discharge current
I
2
0.10
5
0.18
6.5
0.25
8
µA
CT
Capacitor charge/discharge current
R
R
= I 1/I
2
CT
CD CT CT
ratio
CT charge voltage
V
1
V
V
1.3
0.3
1.5
0.5
1.7
0.7
CT
CT
OL
CT discharge voltage
V
V
V
2
OUT output low saturation voltage
OUT output high saturation voltage
Hall input sensitivity
I
= 200mA
= 200mA
O
0.25
0.95
7
0.45
1.2
V
O
I
V
OH
VHN
Zero peak value
(including offset and hysteresis)
15
mV
RD output pin low-level voltage
RD output pin leakage current
V
I
= 5mA
= 15V
RD
0.15
1
0.3
30
V
RD
RD
I
V
µA
RDL
Package Dimensions
unit : mm (typ)
3245B
Pd max -- Ta
500
400
300
200
100
0
Specified board: 114.3×76.1×1.6mm3
glass epoxy board.
3.0
8
192
1
2
(0.53)
0.65
0.25
0.125
-30
0
30
60
90
120
Ambient temperature, Ta -- °C
SANYO : MSOP8(150mil)
No.A1433-2/4
LA6595T
Pin Assignment
+
IN
1
2
3
4
8
7
6
5
RD
−
IN
V
CC
LA6595T
CT
OUT2
GND
OUT1
Top View
Block Diagram
V
CC
+
IN
H
OUT1
OUT2
−
IN
GND
RD
Control
circuit
Charge/discharge circuit
Discharge pulse
CT
CT=0.47 to 1µF
Truth Table
−
+
IN
IN
CT
Low
High
OUT1
OUT2
RD
Mode
High
Low
−
Low
High
−
High
Low
Off
Low
High
Off
Low
Low
Off
During rotation
Lock protection
No.A1433-3/4
LA6595T
Application Circuit Example
Di
Cr
*3
*1
V
CC
R2
RD
OUT1
OUT2
GND
*2
+
H
IN
−
IN
*4
R2
CT
Circuit board mounted cpmponents
*1. If the diode Di (which protects the IC destruction by reverse connection) is used, it is necessary to insert the
capacitor Cr and provide a regenerative current route. Similarly, if there is no nearby capacitor on the fan power
supply line, Cr will also be necessary to improve reliability.
*2. If the Hall sensor bias is taken from V , a 1/2 V
bias, as shown in the figure, must be used.
CC
CC
Linear drive is implemented by amplifying the Hall sensor output and applying voltage control to the coil. If the
Hall effect sensor provides a strong output, the startup characteristics and efficiency will be good, then even
quieter operation will be achieved by adjusting the Hall effect sensor.
*3. This pin must be left open if unused.
*4. If the line from the Hall sensor output to the Hall sensor input of IC are long, noise may enter the system from that
line. If that becomes a problem, insert a capacitor as shown in the figure.
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents 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 Semiconductor Co.,Ltd. products described or contained herein are
controlled under any of applicable local export control laws and regulations, such products may require 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 consent of SANYO Semiconductor 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 Semiconductor Co.,Ltd. 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.
Upon using the technical information or products described herein, neither warranty nor license shall be granted
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's
intellctual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of April, 2009. Specifications and information herein are subject
to change without notice.
PS No.A1433-4/4
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