LB11867RV-MPB-H [ONSEMI]
Variable Speed Single-phase Full-wave Pre-driver;
| 型号： | LB11867RV-MPB-H |
| 厂家： | 
ONSEMI |
| 描述： | Variable Speed Single-phase Full-wave Pre-driver 电动机控制 光电二极管 |
| 文件： | 总11页 (文件大小：202K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LB11867RV
Monolithic Digital IC
For Fan Motor
www.onsemi.com
Variable Speed Single-phase
Full-wave Pre-driver
Overview
LB11867RV 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.
Feature
SSOP16 (225mil)
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
RD (lock detection) output
Thermal shutdown circuit incorporated
Typical Applications
Computing & Peripherals
Industrial
Server
Consumer Appliances
ORDERING INFORMATION
See detailed ordering and shipping information on page 11 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
June 2015 - Rev. 1
1
Publication Order Number :
LB11867RV/D
LB11867RV
Specifications
Absolute Maximum Ratings at Ta = 25C
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
RD output pin withstand voltage
RD pin maximum output current
V
I
19
10
20
V
RD
mA
mA
RD
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: 114.3mm76.1mm1.6mm, glass epoxy board.
*2 Tj max=150°C must not be exceeded.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Recommended Operating Conditions at Ta = 25C
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
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
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2
LB11867RV
Electrical Characteristics at Ta 25C, V
= 12V
CC
Ratings
typ
Parameter
Circuit current
Symbol
Conditions
Unit
min
max
9.5
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
9.5
5.10
215
3.2
1.3
36
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
A
A
kHz
V
CPWM
CPWM
2
21
27
33
CPWM
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
CT
V
V
CT
I
1
V
V
I
= 0.5V
= 3.5V
2.5
μA
μA
times
A
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)
RD output L-level voltage
RD pin leakage current
VTH/RMI pin bias current
V
L
I
= 5mA
RD
0.15
0.30
20
V
RD
I
L
V
= 19V
A
A
RD
IVTH/IRMI
RD
CPWM = VTH/RMI = 2V
0.1
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be
indicated by the Electrical Characteristics if operated under different conditions.
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3
LB11867RV
Package Dimensions
unit : mm
SSOP16 (225mil)
CASE 565AM
ISSUE A
GENERIC
MARKING DIAGRAM*
SOLDERING FOOTPRINT*
5.80
(Unit: mm)
1.0
0.32
XXXXXXXXXX
YMDDD
XXXXX = Specific Device Code
Y = Year
0.65
M = Month
DDD = Additional Traceability Data
NOTE: The measurements are not to guarantee but for reference only.
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
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4
LB11867RV
Pd max -- Ta
1000
800
600
400
200
0
Mounted on a specified board:
114.3×76.1×1.6mm3, glass epoxy
352
-30
0
30
60
9095
120
Ambient temperature, Ta -- °C
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
RMI
VTH
11 CT
+
CPWM
RD
10 IN
IN
-
9
Top View
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5
LB11867RV
Block Diagram
CT
Discharge circuit
Thermal shat down
0.47 to 1 F
RD
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
RD
Mode
H
L
L
H
L
L
H
L
H
L
L
OUT1 2 drive
OUT2 1 drive
L
OFF
OFF
OFF
L
H
L
OFF
OFF
H
L
OFF
OFF
H
Lock protection
H
H
(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.
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6
LB11867RV
Application Circuit Example (12V)
*3
1
2
3
4
RF
*2
V
CC
*9
*8
5VREG
RD
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
*1. PowerGND 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.
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7
LB11867RV
*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. RD pin
Lock detection pin
In open collector output, L upon rotation and H when locked (using pull-up resistance).
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.
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8
LB11867RV
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
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 speedhigh speed
PMW control is made by comparing the CPWM oscillation voltage (1.1V3.0V) 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.
(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.)
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9
LB11867RV
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: 0.1 to 1F
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10
LB11867RV
ORDERING INFORMATION
Device
Package
Shipping (Qty / Packing)
90 / Fan-Fold
SSOP16 (225mil)
(Pb-Free / Halogen Free)
LB11867RV-MPB-H
LB11867RV-TLM-E
LB11867RV-TLM-H
SSOP16 (225mil)
(Pb-Free)
2000 / Tape & Reel
2000 / Tape & Reel
SSOP16 (225mil)
(Pb-Free / Halogen Free)
† For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel
Packaging Specifications Brochure, BRD8011/D. http://www.onsemi.com/pub_link/Collateral/BRD8011-D.PDF
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