LB1965 [SANYO]
Two-Phase Unipolar Driver for Variable-Speed Fan Motor; 两相单极驱动变速风扇电机
| 型号： | LB1965 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Two-Phase Unipolar Driver for Variable-Speed Fan Motor |
| 文件： | 总6页 (文件大小：64K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENN6189
Monolithic Digital IC
LB1965M
Two-Phase Unipolar Driver
for Variable-Speed Fan Motor
Features
Package Dimensions
unit: mm
• With only a few peripheral parts including a thermistor,
ambient temperature dependent continuous speed control
can be implemented. This allows low-speed startup
(100% duty drive at startup).
3111-MFP14S
[LB1965M]
8
14
• Settable minimum rotation speed for low temperature
• Built-in thermistor voltage amplification circuit assures
high precision of ambient temperature to rotation speed
ratio
• Built-in motor lockup protection and automatic recovery
circuit
1
7
0.15
8.0
Output current Io = 1.5A, built-in output stage protection
Zener diode
–> Low-noise protection with chip capacitors also
possible
1.0
0.35
1.0
SANYO : MFP14S
• Built-in thermal protection
• FG output
• Direct Hall element connection possible
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Parameter
Maximum input current
Maximum applied output voltage
Maximum output current
Current flowing into FG
FG applied voltage
Symbol
Conditions
Ratings
Unit
ICC max t ≤ 20 ms
VOUT max
I out max
200
Internal
1.5
mA
V
A
IRD max
10
mA
V
VRD max
50
Allowable power dissipation
Pd max Mounted on a specified PCB
(114.3 × 76.1 × 1.5 mm3 glass epoxy)
0.8
W
Operating temperature
Storage temperature
Topr
Tstg
–30 to +85
°C
°C
–55 to +150
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
83100RM(KI) No. 6189-1/6
LB1965M
Allowable Operating Ranges at Ta = 25˚C
Parameter
Input current range
Symbol
ICC
Conditions
Ratings
Unit
mA
V
6.0 to 50
Hall amplifier common mode input
voltage range
VICM
0 to VIN–1.5
RMI input voltage range
Rth input voltage range
VRMI
VICM
0.3 to VIN
0 to VIN–1
V
V
Electrical Characteristics at Ta = 25˚C, ICC = 10 mA
Ratings
typ
Parameter
Output limiter voltage
Symbol
Conditions
Unit
min
30
max
34
VoLM1
Vosat1
Vosat2
Vosat3
VIN
Io = 0.1A
Io = 0.5A
Io = 1.0A
Io = 1.5A
Icc = 7.0 mA
32
V
V
0.95
1.15
1.4
6.7
0
1.2
1.5
2.0
7.0
7.0
Output saturation voltage
V
V
Input voltage
6.4
–7.0
–250
V
Amplifier input offset voltage
Amplifier input bias current
FG output saturation voltage
C charge voltage
VOFF
IBA
mV
nA
V
VFG(sat) IFG = 5 mA
0.15
3.9
0.3
5.0
IC1
IC2
C = GND
C = VIN
2.7
µA
µA
V
C discharge voltage
0.35
0.50
0.65
0.83
0.48
0.24
3
Comp input threshold voltage
VTH1
VTH2
VCT
Irt
0.77 0.8VIN
0.42 0.45VIN
0.20 0.22VIN
1
V
Ct discharge voltage
Rt input current
V
VRT = GND
RT = OPEN
µA
times
mA
˚C
VRt amplification
VRt
1.52
–7
1.56
0
1.60
+7
RMI offset voltage
VRMIoff
TSD
Thermal protection operating voltage
Design target value*
150
180
210
* Design target values are not measured.
Pin Assignment
Pd max – Ta
1000
3
Specified substrate (114.3 × 76.1 × 1.5 mm ) glass epoxy
800
600
14
13
12
11
10
9
8
416
400
200
0
LB1965M
3
4
1
2
5
6
7
(Top View)
–30
0
30
60
85 90
120
Ambient temperature, Ta – °C
No. 6189-2/6
LB1965M
Truth Table
+
–
IN
H
L
IN
L
Ct
H
H
H
H
L
Rt
L
RMI
H
CR
L
OUT1
OUT2
FG
L
Mode
H
L
L
H
L
Full speed
H
L
L
H
L
H
L
Full speed
H
L
H
H
H
–
L
L
H
L
Minimum speed
Minimum speed
Low speed
H
–
L
L
H
H
H
H
–
–
H
L
H
H
–
–
–
–
H
–
Lockup protection
Sample Application Circuit
12V
D1
R1
390
C3
FG
VIN
B1
R6
2k
OUT1
R2
470k
H
IN–
IN+
OUT2
B2
R4
18k
R3
30k
GND
CR
RMI
Rth
Ct
C4
Noise absorption
capacitor
0.01 to 0.047µF
C1
0.47µ
TH
10k
C2
0.022 µ
R5
39k
Unit (resistance: Ω, capacitance: F)
The above circuit is an example for ambient temperature based speed control using a thermistor.
The thermistor voltage (Rth pin voltage) is multiplied internally by 1.6 and compared to the
voltage at the Ct pin. With the above settings and at Ta = 25˚C, the Rth pin voltage is interrupted
for the interval t off as defined by the equation below. At Ta = 45˚C, because the Rth pin voltage
× 1.6 becomes less than Vct (=1.5V), there is no cut-off interval and the motor is driven with a
duty ratio of 100%. At low temperatures, the thermistor voltage (Rth × 1.6) will rise, but
minimum rotation speed is maintained to a value defined by the RMI pin voltage. Therefore
minimum rotation speed at temperatures below Ta = 25˚C is constant.
VIN–VRth × 1.6
t = –C2 R2 In (
)
VIN–VCt
No. 6189-3/6
LB1965M
Output Timing Chart
Hall input
Discharge
pulse
Low temperature
To
VRMI
VRth
Ct voltage
×
1.6
(=1.5V)
VCt
Ton
Toff
High temperature
GND
Output off
signal
OUT1
current
Full-phase ON
waveform
Controlled
waveform
OUT2
current
FG output
Timing comparator
×1.6 times circuit
VIN
To output
0.6r
r
GND
Discharge pulse
RMI
Ct
Rth
No. 6189-4/6
LB1965M
Block Diagram
D1
L1
B1
R1
VIN
14
6
5
Thermal
Protect
OUT1
L2
R6
3
2
Control
Block
IN+
AMP
H
IN–
8
9
B2
Constant
Charge/
OUT2
Discharge
CR
4
C1
0.47 to10 µF
13
FG
VIN
R2
C2
Ct
12
GND
7
OUTPUT-Timing-Control
×1.6
11
10
Rth
RMI
R4
R5
R3
TH1
Unit (resistance: Ω, capacitance: F)
No. 6189-5/6
LB1965M
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 August, 2000. Specifications and information herein are subject to change
without notice.
PS No. 6189-6/6
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