ROHM BD8229EFV Technical data
System Motor driver IC Series for CD / DVD Players
4ch
System Motor Driver IC
BD8229EFV
●Description
BD8229EFV is BTL driver of 5 input 4 output developed for driving Spindle motor, Sled/Loading motor and the actuator coil.
The hysteresis comparator for reset is built in, and the number of parts can reduce.
●Features
1) 4CH BTL Driver
2) HTSSOP-B24 power package is adopted, the set is miniaturized.
3) Has a wide dynamic range（PreVcc=PowVcc=8V,RL=8Ω, 6.0Ｖ(typ.)）
4) Built-in thermal-shut down circuit
5) Separating Vcc into Pre and Power (Power divides into CH1/2 and CH3/4), can make better Power efficiency
6) Switches CH2 input by Control input terminal (CNT).
7) Incorporates mute function by CNT terminal and mute terminal
8) Built in hysteresis comparator for reset
●Applications
Car Audio
●Absolute Maximum Ratings
Parameter Symbol Limits Unit
Power supply voltage PreVcc,PowVcc1, PowVcc2 15 V
Input terminal voltage 1 Vin1*3 PreVCC V
Input terminal voltage 2 Vin2*4 PowVCC2 V
No.10011EAT01
Power dissipation Pd
Operating temperature range Topr -40~+85 ℃
Storage temperature Tstg -55~+150 ℃
Junction temperature Tjmax +150 ℃
*1 70mm×70mm×1.6mm,occupied copper foil is less than 3%,glass epoxy standard board) mounting.
Reduce power by 11.6mW for each degree above 25℃.
*2 Exclusive standard board mounting. Reduce power by 32.0mW for each degree above 25℃.
*3 Vin1
*4 Vin2
●Recommended Operating Conditions
PRE part Power supply PreVcc 4.5~14*5 V
DC motor system power supply PowVcc1 4.5~PreVCC*3 V
Actuator system power supply PowVcc2 4.5~PreVCC*3 V
*5 Set the power supply voltage taking allowable dissipation into considering.
Application terminal：IN1, CNT, IN2-1, IN2-2, BIAS, IN3, IN4, MUTE
Application terminal：RSTDET
Parameter Symbol Limits Unit
1.1*1
W
4.0*2
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1/11
2010.02 - Rev.A
BD8229EFV
●Electrical Characteristics （Unless otherwise noted,Ta=25℃, PreVcc=PowVcc=8V, BIAS=1.65V, RL=8Ω）
Parameter Symbol
Quiescent dissipation current IQ － 30 45 mA At no-load
< Driver >
Output offset voltage (CH1,2) Voof 12 -100 0 100 mV
Output offset voltage (CH3,4) Voof 34 -50 0 50 mV
Maximum output amplitude (CH1,2) VOM 12 5.4 6.0 － V
Maximum output amplitude (CH3,4) VOM 34 4.7 5.3 － V
Closed circuit voltage gain (CH1,2) Gv 12 24.0 25.7 27.4 dB
Closed circuit voltage gain (CH3,4) Gv 34 15.5 17.5 19.5 dB
MUTE terminal low level input voltage VML － － 0.5 V
MUTE terminal high level input voltage VMH 2.0 － － V
CNT terminal low level input voltage VCNTL － － 0.5 V
CNT terminal high level input voltage VCNTH 2.0 － － V
LDIN terminal voltage（SLED input） VLDIN － 0.1 0.3 V CNT=’L’
Internal bias voltage VBIN 1.53 1.65 1.77 V CNT=’H’
< Reset >
Reset release voltage VDET 1.19 1.25 1.31 V
Hysteresis voltage VHYS 5 25 55 mV
Detection terminal outflow current ICMP － 50 150 nA
RSTOUT output Low voltage VRSTOUT － 0.1 0.3 V 3.3VPull-up（10kΩ）
●Thermal Derating Curve
MIN TYP MAX
Limits
Unit Condition
Technical Note
④4.0Ｗ
③2.8Ｗ
②1.7Ｗ
①1.1Ｗ
Rating for 70mm×70mm(size), 1.6mm(thickness), copper foil occupation ratio less than 3%,
and use of glass-epoxy substrate.
Fig.1 Power dissipation
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2/11
2010.02 - Rev.A
BD8229EFV
●Package Outlines
Technical Note
D8229EFV
Lot.No
HTSSOP-B24(Unit：mm)
Fig.2 Package Outlines
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© 2010 ROHM Co., Ltd. All rights reserved.
3/11
2010.02 - Rev.A
BD8229EFV
Technical Note
●Block Diagram
24 23 22 21 20 19 18 17 16
IN1
20kΩ
CNT
100kΩ
CNT
20kΩ 20kΩ 47kΩ 47kΩ
IN2-1
1.65V
100kΩ 100kΩ
IN2-2
BIAS
BIAS
47kΩ 47kΩ
IN3
IN4
MUTE
GND
MUTE
15 14 13
PreGND
RSTDET
Pre GND
1.25V
LEVEL
SHIFT
LEVEL
SHIFT
T.S.D
LEVEL
SHIFT
LEVEL
SHIFT
PowVcc11PowGND1
2 3 4 5 6 7 8 9 10 11 12
CH1 CH4
CH2 CH3
PowGND2
PowVcc2
PowVcc1
PowGND1
VO1(-)
VO1(+)
VO2(-)
VO2(+)
VO3(-)
VO3(+)
VO4(-)
VO4(+)
T. S. D：Thermal Shut-Down
Fig.3:Block Diagram
○Pin Descriptions
No. Symbol Description No. Symbol Description
1 PowVcc1 CH1,2 power supply terminal 13 PreVcc Pre,RESET power supply terminal
2 PowGND1 power GND1 14 RSTOUT Reset output
3 VO1(-) Driver CH1 negative output 15 RSTDET Reset detection comparator input
4 VO1(+) Driver CH1 positive output 16 PreGND Pre, Reset Block GND
5 VO2(-) Driver CH2 negative output 17 MUTE MUTE terminal
6 VO2(+) Driver CH2 positive output 18 IN4 CH4 input
7 VO3(-) Driver CH3 negative output 19 IN3 CH3 input
8 VO3(+) Driver CH3 positive output 20 BIAS BIAS input terminal
9 VO4(-) Driver CH4 negative output 21 IN2-2 CH2-2 input
10 VO4(+) Driver CH4 positive output 22 IN2-1 CH2-1 input
11 PowGND2 power GND2 23 CNT Control input terminal
12 PowVcc2 CH3,4 power supply terminal 24 IN1 IN1 input
RSTOUT
PreVcc
PowGND2
PreVcc
PowVcc2
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© 2010 ROHM Co., Ltd. All rights reserved.
4/11
2010.02 - Rev.A
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