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Ordering number : EN6215
LB1966M
Monolithic Digital IC
LB1966M
Fan Motor 2-Phase Half-Wave Driver
Features
• Dual power supply voltage design (5/12V) and wide voltage
handling range
• Built-in Hall amplifier with hysteresis (supports core
without commutating pole)
• 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 latch-type RD (restraint protection) 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.
Specification
Package Dimensions
unit: mm
3086A-MFP10S
[LB1966M]
10
1
5.1
6
5
1.5
0.55
0.1
1.00.35
4.4
0.15
1.8max
SANYO : MFP10S
6.4
5.15 0.625
Absolute Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCC max 18 V
Allowable power dissipation Pd max With specified substrate * 800 mW
Output current I
Output withstand voltage V
RD output current IRD max 10 mA
RD output withstand voltage
Operating temperature Topr –30 to +85 °C
Storage temperature Tstg –55 to +150 °C
* With substrate (114.3 × 76.1 × 1.5 mm3, glass epoxy)
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
V
max
RDOUT
18 V
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
63099RM(KI)
No. 6215-1/4
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LB1966M
Allowable 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 6.0 7.0 8.0 V
CT discharge voltage VCT2 1.2 1.6 2.0 V
Output limiter withstand voltage V
Output saturation voltage VOsat Io = 500 mA 1.0 1.3 V
Hall input sensitivity V
RD output saturation voltage VRDsat IRD = 5 mA 0.2 0.5 V
RD output leak current I
Thermal protection trigger temperature T
* Assured design target: Target value, not measured individually
OLM
RDL
TSD
In drive mode (CT = L) 4 6 mA
CC
In lockup protection mode (CT = H) 4 6 mA
R
CT
HN
= ICT1/ICT2 4.0 6.0 8.0 –
CT
Io = 10 mA 24.0 25.5 27.0 V
Including offset and hysteresis 10 18 mV
VRD = 14V 0.1 10 µA
Assured design target * 150 180 200 °C
min typ max
0.2 to VCC–2.3 V
Ratings
Unit
Truth Table
IN– IN+ CT OUT1 OUT2 RD Mode
H L L L H L Rotating
LH HLL
– – H off off H Lock-up protection activated
Pin Assignment
RD 1
–
LB1966M
4
10 V
9CTIN+2
8NCNC 3
7 OUT2IN
6 GNDOUT1 5
CC
Top view
No. 6215-2/4
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Sample Application Circuit
5/12V power supply (3.8 to 17V)
LB1966M
V
CC
OUT1
OUT2
RD
0.1µF
H
IN+
IN–
CT
GND
On-board parts
Precautions
• Wiring layout for IN– and OUT1 must be designed to prevent interference. (If oscillation occurs for example when
output phase is switched, connect a capacitor with 0.1 µF or less between IN– and IN+ pins.)
• If CT pin is connected to GND, the lockup protection and restart functions are disabled.
• In a circuit configuration as shown above, a power supply/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. 6215-3/4
Page 4
LB1966M
Block Diagram and Sample Application Circuit
VCC
IN+
IN–
C1
0.1 to 1µF
Thermal
protection
circuit
Control block
H
RD
Constant
current
source
CT
L1 L2
OUT1
OUT2
GND
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 June, 1999. Specifications and information herein are subject to change
without notice.
No. 6215-4/4
PS
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