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Ordering number : ENN6115
LB1967M
Monolithic Digital IC
LB1967M
Fan Motor 2-Phase Half-Wave Driver
Overview
The LB1967M is a brushless motor driver IC for 2-phase halfwave drive well suited for compact fan motor for communication and office equipment, etc.
Features
• Dual power supply voltage design (5/12V) and wide voltage
handling range
• Built-in Hall amplifier with hysteresis (supports core
without auxiliary electrode)
• Built-in lockup protection and automatic recovery circuits
(External capacitor for rotation detection need only be 0.1
µF, allowing compact, cost-saving design)
• Built-in FG output (Vosat = 0.2Vtyp at IO = 5 mA)
• Built-in output transistor with output withstand voltage
24Vmin/output current 500 mA (average), 1.2A (peak)
• Built-in thermal protection circuit
• Compact, high-temperature resistant MFP-10 package
reduces external parts count and mounting space, therefore
making this IC support the motors with a wide range of
sizes and speeds.
Package Dimensions
unit: mm
3086A-MFP10S
[LB1967M]
10
1
0.35
5.1
1.0
6
5
0.55
1.5
0.1
4.4
1.8max
0.625
6.4
5.15
0.15
SANYO : MFP10S
Specification
Absolute Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCC max 18 V
Output current I
Output withstand voltage V
FG output current IFG max 10 mA
FG output withstand voltage
Allowable power dissipation
Operating temperature Topr –30 to +85 °C
Storage temperature Tstg –55 to +150 °C
* Specified substrate (114.3 × 76.1 × 1.5 mm3, glass exposy)
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO 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 products described or contained
herein.
ave 500 mA
OUT
I
peak t ≤ 1 ms 1200 mA
OUT
max Internal V
OUT
VFG
max
OUT
Pd max
With specified substrate * 800 mW
18 V
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O2599RM(KI)
No. 6115-1/4
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LB1967M
Recommended Operating Ranges at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Power supply voltage VCC1 3.6 to 17 V
Common mode input voltage range V
COM
Electrical Characteristics at Ta = 25°C, VCC = 12V
Parameter Symbol Conditions
Circuit current I
CT capacitor charge current ICT1VCT = 0.2V 0.8 1.2 2.0 µA
Capacitor discharge current ICT2VCT = 8V 0.16 0.24 0.4 µA
Capacitor discharge current ratio R
CT charge voltage VCT1 6.8 7.2 7.6 V
VCT2 1.4 1.6 1.8 V
Output limiter withstand voltage V
OLMIO
Output saturation voltage V
Hall input sensitivity V
FG output saturation voltage V
FG output leak current V
Thermal protection trigger temperature V
* Assured design target; Target value, not measured individually
CC
TH
In drive mode (CT = L) 3 5 mA
In lockup protection mode (CT = H) 4 6 mA
R
CT
= ICT1/ICT2 4.0 5.0 7.0 –
CT
= 10 mA 24.0 25.5 27.0 V
IO = 500 mA 1.0 1.3 V
OL
Including offset and hysteresis 2 10 18 mV
HN
IO = 5 mA 0.2 0.5 V
FG
VFG = 14V 0.1 10 µA
FL
+
Assured design target * 150 180 210 °C
0.2 to VCC–2.3 V
Ratings
min typ max
Unit
Truth Table
–
IN
HL
LH HLH
– – H off off – Lockup protection activated
+
IN
CT OUT1 OUT2 FG Mode
L
LHL
Rotating
Pin Assignment
1000
Pd max – Ta
With specified substrate
(114.3×76.1×1.5 mm
800
600
400
200
Allowable power dissipation, Pd max – mW
0
–30 0 30 60 12090
Ambient temperature, Ta – °C
3
, glass exposy)
416
FG
IN
OUT1
MFP-10
1
+
2IN
3
–
4
5
LB1967M
10
V
CC
9
CT
8
NCNC
7
OUT2
GND
6
Top view
A12231
No. 6115-2/4
Page 3
Sample Application Circuit
5/12V power supply (3.8 to 17V)
LB1967M
10kΩ
0.01µF
10
V
CC
5
+
H
2
IN
OUT1
–
IN
4
9
CT
0.1µF
GND
6
OUT2
FG
7
1
On-board parts
A12232
Precautions
• Wiring layout for IN– and OUT1 must be designed to prevent interference.
• If the wiring between the Hall element and the IC input is long, noise interference may lead to chattering in the FG
output waveform. In this case, insert a capacitor with 0.01 to 0.001 µF between IN+ and IN–.
• If CT pin is connected to GND, the lockup protection and restart functions are disabled.
• In a circuit configuration as shown above, a current-GND reverse connection will cause a current to flow as follows:
GND -> OUT -> coil -> power supply. The magnitude of this current is limited by the coil resistance. If it is less
than 500 mA, the IC will not be destroyed. If required, insert a diode between VCC and the coil.
No. 6115-3/4
Page 4
LB1967M
Block Diagram and Sample Application Circuit
5
7
6
OUT1
OUT2
GND
L1 L2
V
CC
IN
IN
C1
10
+
2
4
H
–
1
FG
Constant
current
circuit
CT
9
0.1 to 1µF
Thermal
protection
circuit
Control block
A12233
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.
This catalog provides information as of October, 1999. Specifications and information herein are subject to change
without notice.
No. 6115-4/4
PS
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