SA9258 [SILAN]
4-CH BTL DRIVER FOR CD PLAYER WITH 5V OUTPUT VOLTAGE; 4通道BTL驱动器的CD播放器， 5V输出电压
| 型号： | SA9258 |
| 厂家： | 
SILAN MICROELECTRONICS JOINT-STOCK |
| 描述： | 4-CH BTL DRIVER FOR CD PLAYER WITH 5V OUTPUT VOLTAGE |
| 文件： | 总10页 (文件大小：645K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SA9258
4-CH BTL DRIVER FOR CD PLAYER WITH 5V OUTPUT VOLTAGE
DESCRIPTION
The SA9258, an IC for CD players, has a 4-channel BTL driver, 5V
regulator (attached PNP transistor required), standard operational
amplifier, and internal reset output linked to an internal thermal shutdown
circuit. The driver has gain adjustment input pins for each channel,
allowing gain to be set to the desired value. Also, the internal level shift
circuit helps reduce the number of attached components.
FEATURES
* 1-phase, full-wave, linear DC motor driver
* Gain is adjustable with an attached resistor.
ORDERING INFORMATION
* Internal standard operational amplifier.
Device
Package
* Internal 5V regulator. (required attached PNP transistor)
* Internal thermal shutdown circuit with hysteresis capabilities.
SA9258
HSOP-28-375-0.8
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.7 2009.03.10
Page 1 of 11
SA9258
ABSOLUTE MAXIMUM RATING (Tamb=25°C, unless otherwise specified)
Characteristics
Supply Voltage
Symbol
Value
12
Unit
V
V
DD
Power Dissipation
P
1.7(Note)
-40~85
-55~150
1
W
D
Operating Temperature
Storage Temperature
Maximum Output Current
T
°C
°C
A
opr
T
stg
I
max
Note: 1. When mounted on 76mm x 114mm x 1.57mm PCB (Phenolic resin material).
2. Power dissipation reduces 13.6mW / °C for using above Tamb=25 °C
3. Do not exceed Pd and SOA (Safe Operating Area).
2.0
1.5
1.0
0.5
0
0
25
50
75
100 125 150 175
Ambient temperature: ( Tamb ℃)
ELECTRICAL CHARACTERISTICS (Tamb=25°C, VCC=8.0V, unless otherwise specified)
Parameter
Operating Voltage
Symbol
Test conditions
Min.
Typ.
Max.
Unit
VCC
5.5
8
12
V
A REGULATOR PART
Regulator Output Voltage
Load Regulation
V
I =100mA
4.75
-40.0
-10.0
5
0
0
5.25
10.0
20.0
V
REG
L
ΔV
I =0mA to 200mA
L
mV
mV
RL
Line Regulation
ΔV
I =200mA, V =6 to 9V
L CC
CC
B DRIVER PART
Quiescent Circuit Current
Input Offset Voltage
I
V =0
5.5
-5.0
-30
0.5
0.5
2.5
4.5
9.5
0
13.5
5.0
30
--
mA
mV
mV
A
CCQ
I
V
-
-
OF
Output Offset Voltage
Maximum Sink Current
Maximum Source Current
Maximum Output Voltage
Closed Loop Voltage Gain
V
0
OO
I
R =4Ω, V
L CC
0.8
0.8
3.0
6.5
SINK
I
R =4Ω, GND
L
--
A
SOU
V
V =2VRMS, 1kHz
I
--
V
OM
AVF
V =0.1V
I
, 1kHz
7.5
dB
RMS
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.7 2009.03.10
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SA9258
Parameter
Ripple Rejection Ratio
Slew Rate
Symbol
Test conditions
Min.
60.0
1.0
Typ.
80.0
2.0
Max.
Unit
dB
R
V =-20dB, 120Hz
--
--
R
I
SR
100Hz, squarewave
V/μs
C OP AMP
Input Offset Voltage
Input Bias Current
V
-
-
-
-
-5.0
--
0
--
5.0
mV
nA
V
OF1
I
300
B1
High Level Output Voltage
Low Level Output Voltage
Output Sink Current
Output Source Current
Open Loop Voltage Gain
Ripple Rejection Ratio
V
6
-
-
OH1
V
-
-
1.8
V
OL1
I
R =50Ω, V
CC
10
10
65
50
40
50
78
70
-
-
-
-
mA
mA
dB
dB
SINK1
L
I
R =50Ω, GND
L
SOURCE1
G
V =-75dB, f=1KHz
IN
VO1
R
V =-20dB, 120Hz
IN
R1
S
Square, V
=2Vp-p,
OUT
R
Slew Rate
0.5
70
1
-
-
V/μs
f=120KHz
Common Mode Rejection Ratio
C
V =-20dB, 1KHz
IN
84
dB
MRR1
PIN CONFIGURATION
PIN DESCRIPTION
Pin No.
Symbol
I/O
Description
1
2
3
4
5
6
7
8
9
OUT1A
OUT1B
IN1A
O
O
I
Drive output
Drive output
Drive input
Drive input
Regulator
Regulator output
Mute
IN1B
I
REG
REO
O
I
MUTE
GND
--
I
Ground
IN2B
Drive input
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
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REV:1.7 2009.03.10
Page 3 of 11
SA9258
Pin No.
10
Symbol
IN2A
I/O
I
Description
Drive input
11
OUT2B
OUT2A
GND
O
O
--
O
I
Drive output
Drive output
Ground
12
13
14
OPOUT
OPIN (-)
OPIN (+)
OUT3A
OUT3B
IN3A
Opamp output
Opamp input (-)
Opamp input (+)
Drive output
Drive output
Drive input
15
16
I
17
O
O
I
18
19
20
IN3B
I
Drive input
21
V
V
V
--
--
I
Supply voltage
Supply voltage
2.5V bias voltage
Drive input
CC
22
CC
23
REF
24
IN4B
I
25
IN4A
I
Drive input
26
OUT4B
OUT4A
GND
O
O
--
Drive output
Drive output
Ground
27
28
FUNCTIONAL DESCRIPTION
1. MUTE
Function
Mute
Operation conditions
○
○
T≥175°C
Thermal shutdown
External muting
V(mute)≤1.4V or open
Output Driver
Bias
7
1) The circuit is muted during thermal shutdown and during the mute-on state. In each case, only the drivers
are muted.
2) During mute, the output pins remain at the internal bias voltage, roughly (Vcc-Vf)/2.
3) When the mute pin #7 is open or the voltage of the mute pin #7 is below 0.5V, the mute circuit is activated so
that the output circuit will be muted..
4) When the voltage of the mute pin is above 2V, the mute circuit is stopped and the output circuit is operated
normally.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
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REV:1.7 2009.03.10
Page 4 of 11
SA9258
5) If the chip temperature rises above 175°C, then the TSD (Thermal Shutdown) circuit is activated and the
output circuit is muted.
2. TSD (THERMAL SHUTDOWN)
VREF
Output Driver
Bias
R1
R2
Qn
1) The V
is the output voltage of the band-gap-referenced biasing circuit and acts as the input voltage of the
REF
TSD circuit.
2) The base-emitter voltage of the TR, Qn is designed to turn-on at below voltage.
V
BE
=V
* R2/(R1+R2)=460mV
REF
3) When the chip temperature rises up to 175°C, then the turn-on voltage of the Qn would drop down to 460mV.
(Hysteresis: 25°) and, the Qn would turn on so the output circuit will be muted.
3. OP-AMP
OP-Amp is integrated in the IC for user convenuence.
OPIN(+)
OPOUT
OPIN(-)
Pins 14, 15 and 16 may be left open when the operational amplifier is not used.
4. DRIVER
1) The voltage, V , is the reference voltage given by the BIAS voltage of the pin #23.
REF
2) The input signal through the pin #3 is amplified by 10K/10K times and then fed to the level shift.
3) The level shift produces the current due to the difference between the input signal and the arbitrary reference
signal. The current produced as +ΔV and -ΔV is fed into the driver buffer.
4) Driver buffer operates the power TR of the output stage according to the state of the input signal.
5) The output stage is the BTL driver and the motor is rotating in forward direction by operating TR Q1 and TR
Q4. on the other hand, if TR Q2 and TR Q3 is operating, the motor is rotating in reverse direction.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.7 2009.03.10
Page 5 of 11
SA9258
6) When the input voltage through the pin #3 is below the V
, then the direction of the motor in forward
REF
REF
direction.
7) When the input voltage through the pin #3 is above the V
direction.
, then the direction of the motor in reverse
8) If it is desired to change the gain, then the pin #4 or #24 can be used.
5. RADIATION FIN IS CONNECTING TO THE INTERNAL GND OF THE PACKAGE.
Connect the fin to the external GND.
6. REGULATOR
This is a typical series regulator that generates a reference voltage internally. A PNP low saturation type
transistor must be connected.
REG
Attached
PNP
VOUT
REO
VREF
Oscillation prevention
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.7 2009.03.10
Page 6 of 11
SA9258
TEST CIRCUIT
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.7 2009.03.10
Page 7 of 11
SA9258
TYPICAL APPLICATION CIRCUIT
ELECTRICAL CHARACTERISTICS CURVES
Fig.1 Driver I/O characteristics (variable load)
Fig.2 Driver I/O characteristics
(variable power supply)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.7 2009.03.10
Page 8 of 11
SA9258
Fig. 3 Power supply voltage vs.
output offset voltage
Fig. 4 Driver gain vs. temperature (RIN connected via
gain adjustment pin)
Fig. 5 Regulator voltage vs. temperature
Fig. 6 Load current vs. regulator voltage
Fig. 7 Operational amplifier vs. open loop
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.7 2009.03.10
Page 9 of 11
SA9258
PACKAGE OUTLINE
HSOP-28-375-0.8
UNIT: mm
Disclaimer:
•
Silan reserves the right to make changes to the information herein for the improvement of the design and performance
without further notice!
•
All semiconductor products malfunction or fail with some probability under special conditions. When using Silan products
in system design or complete machine manufacturing, it is the responsibility of the buyer to comply with the safety
standards strictly and take essential measures to avoid situations in which a malfunction or failure of such Silan products
could cause loss of body injury or damage to property.
•
Silan will supply the best possible product for customers!
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.7 2009.03.10
Page 10 of 11
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