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PDF LV8112V Data sheet ( Hoja de datos )
| Número de pieza | LV8112V | |
| Descripción | 3-phase Brushless Motor Driver | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LV8112V (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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Ordering number : ENA1645A
LV8112V
Bi-CMOS IC
For Polygon Mirror Motor
3-phase Brushless Motor Driver
Overview
The LV8112V is a 3-phase brushless motor driver for polygon mirror motor driving of LBP.
A circuit needed to drive of polygon mirror motor can be composed of a single-chip. Also, the output transistor is made
DMOS by using BiDC process, and by adopting the synchronous rectification method, the lower power consumption
(Heat generation) is achieved.
Features
• 3-phase bipolar drive
• Full complement of on-chip protection circuits, including lock
• Direct PWM drive + synchronous rectification
protection, current limiter, under-voltage protection, and thermal
• IO max1 = 2.5A
shutdown protection circuits
• IO max1 = 3.0A (t ≤ 0.1ms)
• Output current control circuit
• Circuit to switch slowing down method while stopped
(Free run or Short-circuit brake)
• PLL speed control circuit
• Constraint protection detection signal switching circuit (FG or LD)
• Phase lock detection output (with mask function) • Forward / Reverse switching circuit
• Compatible with Hall FG
• Hall bias pin (Bias current cut in a stopped state)
• Provides a 5V regulator output
• SDCC (Speed Detection Current Control) function
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Supply voltage
VCC max
VG max
VCC pin
VG pin
Output current
Allowable Power dissipation
IO max1
IO max2
Pd max
*1
t ≤ 0.1ms *1
Mounted on a specified board *2
Operation temperature
Topr
Storage temperature
Tstg
Junction temperature
Tj max
*1. Tj max = 150°C must not be exceeded.
*2. Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board.
Ratings
37
42
2.5
3.0
1.7
-25 to +80
-55 to +150
150
Unit
V
V
A
A
W
°C
°C
°C
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.
30310 SY / 11310 SY 20091224-S00004 No.A1645-1/13
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
Package Dimensions
unit : mm (typ)
3333
LV8112V
TOP VIEW
SIDE VIEW
15.0
44 23
BOTTOM VIEW
(4.7)
1
0.65
(0.68)
0.22
SIDE VIEW
22
0.2
SANYO : SSOP44K(275mil)
Pd max -- Ta
2.0
1.7
1.5
1.0 0.95
0.5
Pin Assignment
0
-25 0
25 50
75 80
100
Ambient temperature, Ta -- C
44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23
LV8112V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Top view
No.A1645-5/13
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
LV8112V
3-phase Logic Truth Table
F/R = H
IN1 IN2 IN3
HLH
HLL
HHL
LHL
L HH
L LH
(IN = “H” indicates the state where in IN+ > IN−)
F/R = L
Output
IN1
IN2
IN3
OUT1
OUT2
OUT3
L H L L HM
LHH LMH
L LHMLH
HLHHLM
H L L HM L
HH L MH L
S/S Pin
Input state
High or Open
Low
Mode
Stop
Start
BRSEL Pin
Input state
High or Open
Low
While stopped
Free run
Short-circuit brake
CSDSEL Pin
Input state
High or Open
Low
Mode
LD standard
FG standard
SDCC Select
Input state
F/R = High or Open
F/R = Low
Mode
Function ON
Function OFF
LV8112V Description
1. Speed Control Circuit
This IC can realize a high efficiency, low-jitter, a stable rotation by adopting the PLL speed control method.
This the PLL circuit compares the phase difference of the edge between the CLK signal and the FG signal and controls
by using the output of error. The FG servo frequency under control becomes congruent with the CLK frequency.
fFG (Servo) = fCLK
2. Output Drive Circuit
This IC adopts the direct PWM drive method to reduce power loss in the output. The output transistor is always
saturated while the transistor is on and adjusts the driving force of the motor by changing the duty that the output
transistor is on.
The PWM switching of the output is performed by the upper-side output transistor.
Also, this IC has a parasitic diode of the output DMOS as a regeneration route when the PWM switching is off.
But, this IC is cut down the fever than the diode regeneration by performing synchronous rectification.
3. Current Limiter Circuit
This IC limits the (peak) current at the value
I = VRF / Rf (VRF = 0.515V (typical), Rf : current detection resister)).
The current limitation operation consists of reducing the PWM output on duty to suppress the current.
To prevent malfunction of the current limitation operation when the reverse recovery current of diode is detected, the
operation has a delay (approximately 300ns). In case of a coil resistance of motor is small or small inductance, since
the current change at start-up is fast, there is a possibility that the current more than specified current is flowed by this
delay.
It is necessary to set the current increases by the delay.
4. Power Saving Circuit
This IC becomes the power saving state of decreasing the consumption current in the stop state. The bias current of the
majority circuits is cut in the power saving state. Also, 5V regulator output is output in the power saving state.
5. Reference Clock
Note that externally-applied clock signal has no noise of chattering. The input circuit has a hysteresis.
But, if noise is a problem, that noise must be excluded by inserting capacitors across the inputs.
If clock input goes to the no input state when the IC is in the start state, the drive is turned off after a few rotation of
motor if the motor constrained protection circuit does operate. (Clock disconnection protection)
No.A1645-11/13
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
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