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REV. A
Structure : Silicon Monolithic Integrated Circuit
Product Name : Power Driver For Compact Disc Players
Device Name : BA5929FP
Features : • 3-ch BTL driver
• Use of an HSOP-25 PIN power package can achieve downsizing of the set.
• A wide dynamic range (Vcc12=5V, Vcc3=12V, 4.2V (typ.) when RL=8Ω)
• A built-in thermal shutdown circuit is installed.
• A built-in general operational amplifier installed.
• Through the standby terminal, the power saving mode can be set.
{ ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
Parameter Symbol Limits Unit
Power Supply Voltage Vcc12, Vcc3 13.5 V
Power Dissipation Pd 1.45 *1 W
Operating Temperature
Range Topr -35 to 85 °C
Storage Temperature
Range Tstg -55 to 150 °C
*1 When mounted on the glass/epoxy board with the size: 70 mm×70 mm, the thickness: 1.6 mm, and
the rate of copper foil occupancy area: 3% or less.
Over Ta=25°C, derating at the rate of 11.6mW/°C
{ OPERATING CONDITIONS
Parameter Symbol Limits Unit
Power Supply
Voltage Vcc12, Vcc3 4.5 to 13.2 V
This product has not been checked for the strategic materials (or service) defined in the Foreign
Exchange and Foreign Trade Control Low of Japan so that a verification work is required before
exporting it.
Not designed for radiation resistance.
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REV. A
{ ELECTRIC CHARACTERISTICS (Ta=25°C, Vcc12=5V, Vcc3=12V, BIAS=1.65V, RL=8Ω, unless
otherwise noted.)
Parameter Symbol MIN. TYP MAX. Unit Condition
Standby
Consumption
Current IST - - 100
µA
Consumption
Current (at no signal) IQ - 18 28 mA
No load applied
Output Offset
Voltage Voof -70 - 70 mV
Maximum Output
Amplitude (CH1, 2) VOM12 3.8 4.2 - V
Maximum Output
Amplitude (CH3) VOM3 8.5 9.5 - V
Closed Circuit
Voltage Gain (CH1,
2) GVC12 10.0 11.5 13.0 dB
VIN=0.1Vrms f=1KHz
Closed Circuit
Volt age Gain (CH3) GVC3 16.0 17.5 19.0 dB
VIN=0.1Vrms f=1KHz
Standby Voltage VSTBY - - 0.5 V
Standby Reset
Voltage VSTOFF 2.0 - - V
<OP-AMP>
Offset Voltage VOFOP -6 0 6 mV
Input Bias Current VBOP - - 300 nA
High-level Output
Voltage VOHOP 10.0 11.3 - V
Low-level Output
Voltage VOLOP - 0.1 0.4 V
Output Driving
Current Sink ISI 1.0 5.0 - mA
VCC with 50Ω attached
Output Driving
Current Source ISO 8.0 12.0 - mA
GND with 50Ω attached
Slew Rate SROP - 1 - V/µs100KHz squa re wave,
2Vp-p output
{ OUTLINE DIMENSIONS, SYMBOLS
(UNIT: mm)
Product
Number
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REV. A
{ APPLICATION CIRCUIT DIAGRAM
6131345
2910 11 1278
20
21232425 22 18 17 14
19 16 15
levelshift
levelshift
level
shift
STBY ×２
10K
20K 20K
20K 20K
GND
BIAS PreVcc
PVcc3
PVcc12
×２ ×２
×２×２×２
T.S.D
STBY
LOW:ON
HIGH:OFF
0.1μF
VCC3=12V
VCC12=5V
BIAS
ＳＥＲＶＯ ＰＲＥ ＡＭＰ
SLED
FOCUS
TRACKING
TRACKING
COIL
FOCUSCOIL
M
SLED
MOTOR
0.1μF
20K
Resistance unit : [Ω]
{ PIN NUMBERS, PIN NAMES
No. Pin Name Description No. Pin Name Description
1 OPIN2P
Operational amplifier 2
Non-inverted input 14 OUT2P Driver CH2 Positive output
2 OPIN2M
Operational amplifier 2
Inverted input 15 OUT3M Driver CH3 Negative output
3 OPOUT2 Operational amplifier 2 Output 16 OUT3P Driver CH3 Positive output
4 OPIN1P
Operational amplifier 1
Non-inverted input 17 STBY Standby control terminal
5 OPIN1M
Operational amplifier 1
Inverted input 18 GND GND
6 OPOUT1 Operational amplifier 1 Output 19 PVCC3 VCC (CH3/pre-stage)
7 PVCC12 VCC (CH1/CH2) 20 CH3IN CH3 Input
8 OPOUT3 Operational amplifier 2 Output 21 CH2IN CH2 Input
9 OPIN3M
Operational amplifier 2
Inverted input 22 OPOUT4 Operational amplifier 4
Output
10 OPIN3P
Operational amplifier 2
Non-inverted input 23 OPIN4M Operational amplifier 4
Inverted input
11 OUT1M Driver CH1 negative output 24 OPIN4P Operational a m plifier 4
Non-inverted input
12 OUT1P Driver CH1 positive output 25 BIAS Bias input
13 OUT2M Driver CH2 negative output
Note) The positive or negative polarity of driver outputs is determined by the input polarity.
CH1: When the inverted AMP is used for the input stage OP-AMP, the H input results in L at the
negative output pin and H at the positive output pin.
CH2/CH3: Applying the signal H to the input pin results in L at the negative output pin and H at
the positive output pin.
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REV. A
{ CAUTIONS ON USE
(1) Setting the standby terminal (pin 17) voltage to open or to 0.5V (typ.) or less, the driver will turn OFF
and the power saving mode can be set.
Under conditions of normal use, the pin 17 should be pulled-up to 2.0V or above.
(2) On the Bias terminal (pin 25), the applied voltage of 0.7V (typ.) or less will activate a mute function.
Under conditions of normal use, it should be set to 1.3V or above.
(3) Thermal shutdown (TSD) or bias terminal voltage drop will activate the mute function, where only the
driver part can be muted. While muting, the voltage at the output terminal will equal to the internal
reference voltage (approximately Vcc/2).
(4) Connecting a capacitive load to the OP-AMP output results in a phase margin reduction of the amp and
may cause an oscillation or a peak. When connecting a capacitive load, a resistance must be
inserted in series between the output and the capacitive load. And after careful consideration of the
frequency characteristics, the device should be used within the range where no problem is found in
actual use.
(5) The radiating fin must be connected to the external GND.
(6) Short-circuit between output pin -VCC, output pin-GND, or output terminals (load short) must be
avoided.
Mounting the ICs in improper directions may damage themselves or produce smoke.
(7) About absolute maximum ratings
Exceeding the absolute maximum ratings, such as the applied voltage or the operating temperature
range, may cause permanent device damage. As these cases cannot be limited to the broken short
mode or the open mode, if a special mode where the absolute maximum ratings may be exceeded is
assumed, it is recommended to take mechanical safety measures such as attaching fuses.
(8) About power supply lines
As a measure against the back current regenerated by a counter electromotive force of the motor, a
capacitor to be used as a regenerated-current path can be installed between the power supply an d
GND and its capacitance value should be determined after careful check that any problems, for
example, a leak capacitance of the electrolytic capacitor at low temperature, are not found in various
characteristics.
(9) About GND potential
The electric potential of the GND terminal must be kept lowest in the circuitry at any operation states.
(10) About thermal design
With consideration of the power dissipation (Pd) under conditions of actual use, a thermal design
provided with an enough margin should be done.
(11) About operations in a strong electric field
When used in a strong electric field, note that a malfunction may occur.
(12) ASO
When using this IC, the output Tr. must be set not to exceed the values specified in the absolute
maximum ratings and ASO.
(13) Thermal shutdown circuit
This IC incorporates a thermal shutdown circuit (TSD circuit). When the chip temperat ure reaches the
value shown below, the coil output to the motor will be set to open.
The thermal shutdown circuit is designed only to shut off the IC from a thermal runaway and not
intended to protect or guarantee the entire IC functions.
Therefore, users cannot assume that the TSD circuit once activated can be used continuously in the
subsequent operations.
TSD ON Temperature
[°C] (typ.) Hysteresis Temperature
[°C] (typ.)
175 25
(14) About earth wiring patterns
When a small signal GND and a large current GND are provided, it is recommended that the large
current GND pattern and the small signal GND pattern should be separated and grounded at a single
point of the reference point of the set in order to prevent the voltage of the small signal GND from being
affected by a voltage change caused by the resistance of the pattern wiring and the large current.
Make sure that the GND wiring patterns of the external components will not change, too.
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REV. A
(15) This IC is a monolithic IC which has a P+ isolations and P substrate to isolate elements each other.
This P layer and an N layer in each element form a PN junction to construct various parasitic elements.
Due to the IC structure, the parasitic elements are inevitably created by the potential relationship.
Activation of the parasitic elements can cause interference between circuits and may result in a
malfunction or, consequently, a fatal damage. Therefore, make sure that the IC must not be used
under conditions that may activate the parasitic elements, for example, applying the lower voltage than
the ground level (GND, P substrate) to the input terminals.
In addition, do not apply the voltage to input terminals without applying the power suppl y voltage to the
IC. Also while applying the power supply voltage, the voltage of each input terminal must not be over
the power supply voltage, or within the guaranteed values in the electric characteristics.
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
Appendix1-Rev2.0
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Copyright © 2007 ROHM CO.,LTD.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level
of reliability and the malfunction of which would directly endanger human life (such as medical
instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers
and other safety devices), please be sure to consult with our sales representative in advance.
It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance
of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow
for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in
order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM
cannot be held responsible for any damages arising from the use of the products under conditions out of the
range of the specifications or due to non-compliance with the NOTES specified in this catalog.
21, Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121
FAX : +81-75-315-0172
Appendix
