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PDF BD8253EFV-M Data sheet ( Hoja de datos )
| Número de pieza | BD8253EFV-M | |
| Descripción | 6ch System Motor Driver | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Datasheet
System Motor Driver for CD/DVD/BD Players
6ch System Motor Driver
for Car AV
BD8253EFV-M
General Description
BD8253EFV-M is a 6-ch motor driver system developed
for driving coil actuator (2ch), SLED motor (2ch), loading
motor and three phase motor for spindle.
It can drive motor and coil of the DVD drive.
Features
AEC-Q100 Qualified(Note 1)
Two Control Pins For Each Driver ON/OFF, Standby
Mode And Brake Mode For Spindle
High Efficiency At 180° PWM For Spindle Driver
Built In Current Limit, Hall Bias, FG and Reverse
Protect Circuit For Spindle
Built-in 2-channel Stepping Motor Driver For SLED
Built-in VCC Short And GND Short Circuit Protection
For Loading Driver
Built-in Over Current Protection Circuit For Actuator
Driver
(Note 1) Grade3
Key Specifications
Ron(Spindle):
Ron(SLED):
Ron(Actuator):
Ron(Loading):
Driver Temperature Range
1.0Ω(Typ)
2.2Ω(Typ)
2.2Ω(Typ)
2.2Ω(Typ)
-40°C to +85°C
Package
HTSSOP-B54
W(Typ) x D(Typ) x H(Max)
18.50mm x 9.50mm x 1.00mm
Applications
Car Navigation
Car AV
HTSSOP-B54
Typical Application Circuit
TRACKING FOCUS LOADING
COIL
COIL MOTOR
M
54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28
BD8253EFV-M
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
SPINDLE
MOTOR
M
SLED
MOTOR
Figure 1. Application Circuit
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
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1 page  
BD8253EFV-M
Electrical Characteristics
(Unless otherwise specified, Ta=25°C, VVCC=VSPVM=VSLRNF1=VSLRNF2=VVM_S=8V, VVMFCRNF=VVMTKRNF=8V,
VVC=1.25V, RL=8Ω, RLSP=2Ω, RSPRNF=0.165Ω, RSLRNF1=RSLRNF2=0.5Ω)
Parameter
Symbol
Limits
Unit
Min Typ Max
Conditions
Circuit Current
Quiescent Current
Standby Current
IQ - 12.5 25 mA At no-load, VCTL2=H
IST - 0.22 1.0 mA VCTL1=VCTL2=L
Spindle
Motor
Driver
Hall
Bias
Hall
Amplifier
Spindle
Torque
Input and
Output
FG
Output
Hall Bias Voltage
Input Bias Current
Input Level
Common Mode Input Range
Input Dead Zone (One Side)
Input-Output Gain
Output ON Resistance (Total Sum)
Output Limit Current
Input Impedance
PWM Frequency
Low Level Voltage
VHB
IHIB
VHIM
VHICM
VDZSP
gmSP
RONSP
ILIMSP
RINSP
fOSC
VFGL
0.45 0.9 1.35 V IHB=10mA
-5 - 5 μA
50 -
- mVpp
1 - 6V
0 10 40 mV
1.59 2.05 2.46 A/V RSPRNF=0.165Ω, RLSP=2Ω
- 1 1.8 Ω IL=500mA
1.2 1.5 1.8 A
(0.198) (0.247) (0.297) (V)
35 47 59 kΩ
RSPRNF=0.165Ω
- 100 - kHz
- 0.1 0.3 V 10KΩ pull-up (3.3V)
SLED Motor Driver
Input Dead Zone (One Side)
Input Impedance
Input-Output Gain
Output ON Resistance (Total Sum)
Output Limit Current
VDZSL
RINSL
gmSL
RONSL
ILIMSL
5 30 55
35 47 59
0.51 0.66 0.81
- 2.2 3.7
0.42 0.5 0.58
(0.21) (0.25) (0.29)
mV
kΩ
A/V
Ω
A
(V)
RSLRNF1, RSLRNF2=0.5Ω
IL=500mA
RSLRNF1, RSLRNF2=0.5Ω
Actuator Driver
Loading Driver
PWM Frequency
fOSC - 100 - kHz
Output Offset Voltage
VOFACT -50 0
50 mV RL=8Ω
Output ON Resistance (Total Sum) RONACT - 2.2 3.7 Ω IL=500mA
Input Impedance
RINACT 37 50 63 kΩ
Input-Output Gain
GVACT 16 17.5 19 dB RL=8Ω
Output Offset Voltage
VOFLD -75 0 75 mV RL=8Ω
Output ON Resistance (Total Sum) RONLD - 2.2 3.7 Ω IL=500mA
Input Impedance
RINLD 35 47 59 kΩ
Input-Output Gain
GVLD 14.2 15.6 16.9 dB RL =8Ω
Actuator Protection
Circuit
Actuator Protection
Flag Output
PRTT/PRTF Default Voltage
PRTT/PRTF Protect Detection Voltage
PRTLIM Voltage
Detection Amplifier Input Offset Voltage
PRTOUT Low Level Output Voltage
VPRTREF
VPRTDET
VPRTLIM
VOFDET
1.00
2.82
500
-5
1.06
3.00
530
0
1.12
3.18
560
5
V
V
mV
mV
VOL1
- 0.1 0.3 V 33kΩ pull-up (3.3V)
ACTMUTE
CTL1, CTL2
L Input Voltage
H Input Voltage
High Level Input Current
VICTL
-
- 0.8 V
VICTH
2
-
-
V
ICTH
- 50 100 μA VCTL1, VCTL2, VACTMUTE = 3.3V
Function
VC Drop Mute Voltage
VCC Drop Mute Voltage
VC Input Current
VMVC 0.4 0.7 1
V
VMVCC 3.4 3.8 4.2 V
IVC - 4 8 μA VVC=1.25V
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
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TSZ02201-0H5H0BK01730-1-2
26.Jan.2016 Rev.001
5 Page 
BD8253EFV-M
6. Actuator Driver (Focus/Tracking)
(1) Voltage Gain Calculation
The output voltage is set by the input voltage (difference voltage of FCIN/TKIN and VC) x voltage gain (GVACT).
Voltage gain can be adjusted by an external input resistor RIN.
VIN
VC
RIN
50k
IN
100k
VC
100k
RIN + 50k
Level
Shift
×0.94
VO+
+ ×2
×2
- VO-
100kΩ
VREF + RIN + 50kΩ ×0.94×2×(VIN-VC)
VO+
VREF
VO-
100kΩ
VREF - RIN + 50kΩ ×0.94×2×(VIN-VC)
×2
VO = (VO+) - (VO-) → 4 times between output
Figure 17. Actuator (Focus/Tracking) Closed Loop Voltage Gain Calculation Diagram
Voltage Gain expression is given by following formula
������������������������������
=
������������
������������������
=
100k
������������������+50k
×
0.94
×
2
×
2
[dB]
When RIN = 0
������������������������������
=
������������
������������������
=
100k
50k
×
0.94
×
2
×
2
=
17.5
[dB]
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
11/37
TSZ02201-0H5H0BK01730-1-2
26.Jan.2016 Rev.001
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BD8253EFV-M.PDF ] | |
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