LB11867FV-MPB-E [ONSEMI]
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| 型号： | LB11867FV-MPB-E |
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ONSEMI |
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Ordering number : ENA0730B
Monolithic Digital IC
For Fan Motor
LB11867FV
Variable Speed Single-phase
Full-wave Pre-driver
Overview
LB11867FV is a single-phase bipolar driving motor pre-driver with the variable speed function compatible with external
PWM signal. With a few external parts, a highly-efficient and highly-silent variable drive fan motor with low power
consumption can be achieved. This product is best suited for driving of the server requiring large air flow and large current
and the fan motor of consumer appliances.
Features
• Single-phase full-wave driving pre-driver
⇒ Low-saturation drive using external PMOS-NMOS enables high-efficiency low power-consumption drive.
• Variable speed control possible with external PWM input
⇒ Separately-excited upper direct PWM (f =30kHz) control method ensures highly silent speed control.
• Current limiting circuit incorporated
⇒ Chopper type current limiting made at startup and during lock.
• Reactive current cut circuit incorporated
⇒ Reactive current before phase changeover is cut, ensuring highly silent and low power-consumption drive.
• Minimum speed setting pin
⇒ Minimum speed can be set by setting the resistance.
• Soft start setting pin
• Lock protection and automatic reset circuits incorporated
• FG (rotation speed detection) output
• Thermal shutdown circuit incorporated
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.
11911 SY/O1007 MS/50907 MS PC 20070228-S00004 No.A0730-1/9
LB11867FV
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
V
pin maximum supply voltage
V
max
18
20
CC
CC
OUTN pin maximum output
current
IOUTN max
mA
OUTP pin maximum Sink current
IOUTP max
VOUT max
20
18
7
mA
V
OUT pin output withstand voltage
VTH, RMI pins withstand voltage VVTH, VRMI max
V
S-S pin withstand voltage
V
max
max
max
7
V
S-S
FG output pin withstand voltage
FG pin maximum output current
V
I
19
10
20
V
FG
mA
mA
FG
5VREG pin maximum output
current
I5VREG max
Allowable power dissipation
Pd max
Topr
with specified substrate *1
*2
800
-30 to 95
-55 to 150
mW
°C
Operating temperature
Storage temperature
Tstg
°C
*1 Specified substrate: 114.3mm×76.1mm×1.6mm, glass epoxy board.
*2 Tj max=150°C must not be exceeded.
Recommended Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
V
Supply voltage
V
CC
CC
5.5 to 16
0 to 5
VTH, RMI input voltage range
VTH, RMI
VICM
V
Hall input common-phase input
voltage range
0.2 to 3
V
Electrical Characteristics at Ta = 25°C, V
= 12V
CC
Ratings
typ
Parameter
Circuit current
Symbol
Conditions
Unit
min
max
9.5
9.5
5.10
215
3.2
1.3
36
I
I
1
2
During drive
5.5
5.5
7.5
mA
mA
V
CC
During lock protection
I5VREG = 5mA
7.5
4.95
200
3.0
1.1
30
CC
5VREG voltage
5VREG
VLIM
4.80
185
2.8
0.9
24
Current limiting voltage
CPWM pin “H” level voltage
CPWM pin “L” level voltage
CPWM pin charge current
CPWM pin discharge current
CPWM Oscillation frequency
CT pin “H” level voltage
CT pin “L” level voltage
CT pin charge current
mV
V
V
H
CPWM
V
L
V
CPWM
I
I
1
V
V
= 0.5V
= 3.5V
μA
μA
kHz
V
CPWM
CPWM
CPWM
2
21
27
33
CPWM
FPWM
C = 220PF
30
V
H
L
2.8
0.9
1.6
0.16
8
3.0
1.1
2.0
0.20
10
3.2
1.3
2.5
CT
V
V
CT
I
1
V
V
I
= 0.5V
= 3.5V
μA
μA
times
μA
V
CT
CT
CT pin discharge current
CT pin charge/discharge ratio
S-S pin discharge current
OUTN output H-level voltage
OUTN output L-level voltage
OUTP output L-level voltage
Hall input sensitivity
I
2
0.25
12
CT
CT
R
1/I
2
CT
CT CT
I
V = 1V
S-S
0.4
0.5
-0.85
0.9
0.5
±10
0.6
S-S
V
NH
I
= 10mA
= 10mA
= 10mA
V
V
-1.00
1.00
0.65
±20
O
O
CC
CC
V
NL
PL
I
I
V
O
O
O
V
V
O
+
-
VHN
IN , IN differential voltage
mV
(including offset and hysteresis)
FG output L-level voltage
FG pin leakage current
VTH/RMI pin bias current
V
L
I
= 5mA
FG
0.15
0.30
20
V
FG
I
L
V
= 19V
μA
μA
FG
IVTH/IRMI
FG
CPWM = VTH/RMI = 2V
0.1
No.A0195-2/9
LB11867FV
Package Dimensions
unit : mm (typ)
3178B
Pd max -- Ta
1000
800
600
400
200
0
Mounted on a specified board:
114.3×76.1×1.6mm3, glass epoxy
5.2
16
9
352
1
8
0.65
0.15
(0.33)
0.22
-30
0
30
60
9095
120
Ambient temperature, Ta -- °C
SANYO : SSOP16(225mil)
Pin Assignment
OUT2P
OUT2N
1
2
3
4
5
6
7
8
16 OUT1P
15 OUT1N
14 SGND
13 5VREG
12 S-S
V
CC
SENSE
RM
VTH
11 CT
+
CPWM
FG
10 IN
IN
-
9
Top View
No.A0195-3/9
LB11867FV
Block Diagram
CT
Discharge circuit
Thermal shat down
0.47 to 1μF
FG
Discharge pulse
V
CC
5VREG
OUT1N
OUT1P
5VREG
Controller
HALL
+
IN
IN
-
OUT2N
OUT2P
Osillaton
SGND
S-S RMI VTH CPWM
SENSE
Truth table
(1) Drive lock CPWM=H VTH, RMI, S-S=L
-
+
IN
IN
CT
OUT1P
L
OUT1N
OUT2P
OFF
L
OUT2N
FG
Mode
H
L
L
H
L
L
H
L
H
L
L
OUT1 → 2 drive
OUT2 → 1 drive
L
OFF
OFF
OFF
OFF
L
H
L
OFF
OFF
H
L
H
Lock protection
H
H
OFF
(2) Speed control CT, S-S=L
-
+
VTH, RMI
CPWM
IN
IN
OUT1P
L
OUT1N
OUT2P
OUT2N
Mode
H
L
L
H
L
L
H
L
OFF
L
H
L
OUT1 → 2 drive
OUT2 → 1 drive
L
H
OFF
OFF
OFF
H
L
OFF
OFF
H
L
H
L
Regeneration mode
H
H
For VTH, RMI, and S-S pins, refer to the timing chart.
No.A0195-4/9
LB11867FV
Application Circuit Example (12V)
*3
Rp=1kΩ
1μF to /25V
1
2
3
100Ω
4
RF
RFG=10k
to 100kΩ
*2
1μF to /25V
V
CC
*9
5VREG
FG
*8
SENSE
1
2
3
4
*4
-
H
IN
+
IN
*11
*6
S-S
RMI
*1
SGND
CT
*7
VTH
PWM-IN
CPWM
*5
*10
CP=220pF
30kHz
CT=0.47μF
*1. Power−GND wiring
SGND is connected to the control circuit power supply system.
*2. Power stabilization capacitor
For the power stabilization capacitor on the signal side, use the capacitance of 1μF or more.
Connect V and GND with a thick and shortest pattern.
CC
*3. Power stabilization capacitor on the power side
For the power stabilization capacitor on the power side, use the capacitance of 1μF or more.
Connect the power supply on the power side and GND with a thick and shortest pattern.
+
-
*4. IN , IN pins
Hall signal input pin.
Wiring should be short to prevent carrying of noise.
If noise is carried, insert the capacitor between IN and IN pins.
+
-
The Hall input circuit functions as a comparator with hysteresis (15mV).
This also has a soft switch section with ±30mV (input signal differential voltage).
It is also recommended that the Hall input level is minimum 100mV(p-p).
*5. CPWM pin
Pin to connect the capacitor for generation of the PWM basic frequency
The use of CP = 220pF causes oscillation at f = 30kHz, which is the basic frequency of PWM.
As this is used also for the current limiting canceling signal, be sure to connect the capacitor even when the speed
control is not made.
No.A0195-5/9
LB11867FV
*6. RMI pin
Minimum speed setting pin.
Perform pull-up with 5VREG when this pin is not to be used.
If the IC power supply is likely to be turned OFF first when the pin is used with external power supply, be sure to
insert the current limiting resistor to prevent inflow of large current. (The same applies to the VTH pin.)
*7. VTH pin
Speed control pin.
Connect this pin to GND when it is not used (at full speed).
For the control method, refer to the timing chart.
For control with pulse input, insert the current limiting resistor and use the pin with the frequency of 20k to 100kHz
(20kHz to 50kHz recommended).
*8. SENSE pin
Current limiting detection pin.
When the pin voltage exceeds 0.2V, the current is limited and the operation enters the lower regeneration mode.
Connect this pin to GND when it is not to be used.
*9. FG pin
Rotation speed detection pin.
This is an open collector output, which can detect the rotation speed from the FG output according to the phase
changeover. Keep this pin open when it is not to be used.
*10. CT pin
Pin to connect the lock detection capacitor.
The constant-current charge and discharge circuits incorporated cause locking when the pin voltage becomes 3.0V
and unlocking when it is 1.1V.
Connect the pin to GND when it is not to be used (locking not necessary).
*11. S-S pin
Pin to connect the soft-start setting capacitor.
Connect the capacitor between 5VREG and S-S pin.
This pin enables setting of the soft start time according to the capacity of the capacitor.
See the timing char.
Connect the pin to GND when it is not to be used.
No.A0195-6/9
LB11867FV
Control timing chart (Speed control)
f=30kHz (CP=220pF)
VTH voltage
RMI voltage
3.0V
CPWM
1.1V
0V
Minimum speed
setting rotation
(stop mode)
Low speed
High speed
Full speed
PWM control speed variable
FG
100%
ONDUTY
0%
(1) Minimum speed setting (stop) mode
The low-speed fan rotation occurs at the minimum speed set with the RMI pin. When the minimum speed is not set
(RMI pin pulled up to 5VREG), the motor stops.
(2) Low speed⇔high speed
PMW control is made by comparing the CPWM oscillation voltage (1.1V⇔3.0V) and VTH voltage.
Both upper and lower output TRs are turned ON when the VTH voltage is low. The upper output TR is turned OFF
when the VTH voltage is high, regenerating the coil current in the lower TR. Therefore, as the VTH voltage decreases,
the output ON-DUTY increases, causing increase in the coil current, raising the motor rotation speed.
The rotation speed can be monitored with the FG output.
(3) Full speed mode
The full speed mode becomes effective when the VTH voltage is 1.1V or less. (Set VTH = GND when the speed
control is not to be made.)
No.A0195-7/9
LB11867FV
Control timing chart (Soft start)
(1)At VTH < RMI voltage
S-S voltage
3.0V
RMI voltage
VTH voltage
CPWM
1.1V
0V
Lock protection
Soft start section
VTH set speed
100%
ONDUTY
0%
T
(2) At VTH > RMI voltage
S-S voltage
VTH voltage
RMI voltage
3.0V
CPWM
1.1V
0V
Lock protection
Soft
RMI set speed
start
section
100%
ONDUTY
0%
T
Adjust the S-S pin voltage gradient by means of the capacitance of the capacitor between the S-S pin and 5VREG..
Recommended capacitor: 0.1μ to 1μF
No.A0195-8/9
LB11867FV
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 January, 2011. Specifications and information herein are subject
to change without notice.
PS No.A0730-9/9
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