FAN800D2TF [FAIRCHILD]
2-Channel Motor Drive; 2通道马达驱动器
| 型号： | FAN800D2TF |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | 2-Channel Motor Drive |
| 文件： | 总14页 (文件大小：211K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
FAN8002D2
2-Channel Motor Drive
Features
Description
• 2-Channel BTL driver with mute circuit
• Built-in 2-regulator
• Built-in 2-comparator
The FAN8002D is a monolithic integrated circuit, suitable
for a 2-ch motor driver which drives the focus actuator,
tracking actuator.
• Built-in thermal shutdown circuit
• Built-in mute circuit
• Built-in switch circuit
• Built-in OP-AMP circuit
• Operating supply voltage: 4.5~13.2V
• Corresponds to 3.6V DSP
28-SSOPH-300
Ordering Information
Device
Package
Operating Temperature
−35°C ~ 85°C
FAN8002D2 28-SSOPH-300
FAN800D2TF 28-SSOPH-300
−35°C ~ 85°C
Rev. 1.0.1
Jul. 2000.
©2000 Fairchild Semiconductor International
FAN8002D2
Pin Assignments
FIN
(GND)
27
26
25
24
23
22
21
20
19
18
17
16
15
28
FAN8002D2
1
2
3
6
7
4
5
8
9
12
10
11
13
14
FIN
(GND)
Pin Definitions
Pin Number
Pin Name
I/O
Pin Function Description
1
2
COUT1
CIN1-
CIN1+
CIN2+
CIN2-
COUT2
RSTIN
SWOUT
PVCC1
REG1
REG2
PVCC2
DO1-
O
I
Comparator1 Output
Comparator1 (-) Input
Comparator1 (+) Input
Comparator2 (+) Input
Comparator2 (-) Input
Comparator2 Output
Reset Input
3
I
4
I
5
I
6
O
I
7
8
O
-
Switch Output
9
Power Supply1 (Reg,switch Part)
Regulator1 Output
10
11
12
13
14
15
16
17
18
19
20
O
O
-
Regulator2 Output
Power Supply 2 ( Drive Power Output Part)
Drive1 Output (-)
O
O
O
O
-
DO1+
DO2+
DO2-
Drive1 Output (+)
Drive1 Output (+)
Drive1 Output (-)
PGND
IN2
Power Ground
I
CH2 Drive Input
IN1
I
CH1 Drive Input
VREF
I
Reference Voltage
REG2
CONT
21
22
I
I
Regulator2 On/off Control
Drive Mute
MUTE
Rev. 1.0.1
Jul. 2000.
2
FAN8002D2
Pin Definitions (Continued)
Pin Number
Pin Name
RSTOUT
CRST
I/O
Pin Function Description
23
24
25
26
27
28
O
-
Reset Output
Reset Capacitor
Opamp Output
Opamp Input -
Opamp Input +
OPOUT
OPIN -
-
-
OPIN +
SVCC
-
-
Signal Supply (Comparator, Reset, Opamp Drive Pre-amp Part)
Block Diagram
FIN
(GND)
28
27
26
25
24
23
22
21
17
16
15
20
19
18
+
DRIVER
Mute
REG2
Control
+
+
-
-
+
-
-
PVCC1
Switch
+
-
I/V-Convertor
TSD
I/V-Convertor
-
+
VREG
Pref
Regulator1
Regulator2
Comparator1
-
Comparator2
-
+
-
+
-
+
-
+
-
+
+
1
2
3
4
5
6
13
7
8
9
12
10
11
14
FIN
(GND)
Rev. 1.0.1
Jul. 2000.
3
FAN8002D2
Equivalent Circuits
Comparator Output
Comparator Input
1
6
2.5kΩ
1kΩ
3
5
2
4
23Ω
23Ω
Reset Input & Reset Capacitor
Switch Output
10kΩ
1kΩ
65kΩ
23Ω
7
24
8
80kΩ
30kΩ
23Ω
23Ω
2kΩ
30kΩ
Regulator Output
Btl Driver Output
10kΩ
10
11
15
16
13
14
1.7kΩ
5kΩ
20kΩ
Vref & Btl Driver Input
Reg2 & Switch Control Input
1kΩ
14kΩ
14kΩ
18
19
21
20
50kΩ
50kΩ
30kΩ
30kΩ
23Ω
23Ω
Rev. 1.0.1
Jul. 2000.
4
FAN8002D2
Equivalent Circuits (Continued)
Mute Input
Reset Output
23
50kΩ
23Ω
22
23Ω
20kΩ
50kΩ
Op-amp Output
Op-amp Input
8kΩ
27
26
25
23Ω
23Ω
23Ω
Absolute Maximum Ratings (Ta = 25 °C)
Parameter
Maximum supply voltage
Power dissipation
Symbol
Value
15
1.4note
Unit
V
V
CCmax
P
d
W
Operating temperature range
Storage temperature range
T
-35 ~ +85
-55 ~ +150
°C
°C
opr
T
stg
NOTE:
1. When mounted on a 76.2mm × 114mm × 1.57mm PCB (Phenolic resin material).
2. Power dissipation reduces 11.2mW/°C for using above Ta = 25°C
3. Do not exceed Pd and SOA(Safe operating area).
PD (temporary)
Pd (mW)
2,000
1,200
SOA
400
0
0
25
50
85 100
125
150
175
Ambient Temperature, Ta (°C)
Rev. 1.0.1
Jul. 2000.
5
FAN8002D2
Recommended Operating Conditions
Parameter
Signal Supply Voltage
Power Supply Voltage 1
Power Supply Voltage 2
Symbol
SVCC
Min.
4.5
Typ.
Max.
13.2
Unit
V
-
-
-
PVCC1
PVCC2
4.5
SVCC
SVCC
V
4.0
V
Electrical Characteristics
(Unless otherwise specified, Ta = 25 °C, V
= VM12 = VM3,4 = 5V,Vref=1.65V, Comparator out=Hi-Z)
CC
Parameter
Quiescent Current 1
Quiescent Current 2
Quiescent Current 3
Quiescent Current 4
DRIVE PART
Symbol
Conditions
Min.
Typ. Max.
Unit
mA
mA
mA
mA
I
I
I
V
V
V
V
=Vref, Pin21=0V, Pin22=5V
= Vref, Pin21=5V, Pin22=5V
= Vref, Pin21=5V, Pin22=0V
= Vref, Pin21=0V, Pin22=0V
-
-
-
-
9
19
15
6
-
CC1
CC2
CC3
IN
IN
IN
IN
-
-
-
Icc4
Output Offset Voltage
Maximum output voltage1
Maximum output voltage2
Closed loop voltage gain
Mute on voltage
V
V
= Vref
-50
3.1
-
3.5
4.0
12
-
+50
-
mV
V
OO
IN
V
V
SV =5V, R =24ohm,
CC
OM1
OM2
L
SV =12V, R =24ohm
CC
3.6
-
V
L
G
V =0.1Vrms, f=1KHz, Rext=0
IN
10.5
GND
2
13.5
0.5
Vcc
dB
V
VC
V
Pin22 = Variation
Pin22 = Variation
MON
Mute off voltage
V
MOFF
-
V
REGULATOR PART
Maximum output current
Regulator output voltage
Load regulation
Iomax
Vreg
-
200
3.5
-40
-
-
3.6
-
-
mA
V
I =50mA
3.7
10
L
∆Vrl
I =0~200mA
L
mV
mV
V
Line regulation
∆Vcc
Vr2on
Vr2off
V
=4.5~5.5V
CC
10
-
30
Regulator2 on voltage
Regulator2 off voltage
COMPARATOR PART
Input offset voltage
Input offset current
Input bias current
Pin21=Variation
Pin21=Variation
2.0
GND
Vcc
0.5
-
V
Vio
Iio
-
-
-
-
-
-
-
-
5.0
25
-
4.0
-
mV
nA
nA
V
Ib
-
250
3.5
-
Common mode input voltage
Output sink current
Slew rate
Vicm
Isink
SR
0
3.0
-
-
mA
us
V =4Vp_p, f=100KHz,Square
IN
1.3
-
RESET PART
Reset on voltage
Vrston
Vrsthys
VoL
V
V
l=H / L
4.1
100
-
4.2
-
4.3
200
200
V
CT
Reset hysteresis voltage
Low level output voltage
SWITCH PART
l=H / L /H
CT
mV
mV
R =4.7 K
100
L
Upper satuaration voltage
Output off current
Vupsat
Ioff
V
V
=5V, Iout=150mA
=5V
-
-
0.13
-
0.2
20
V
CC
µA
CC
OP-AMP PART
Rev. 1.0.1
Jul. 2000.
6
FAN8002D2
Electrical Characteristics (Continued)
(Unless otherwise specified, Ta = 25 °C, V
CC
= VM12 = VM3,4 = 5V,Vref=1.65V, Comparator out=Hi-Z
Parameter
Input offset voltage
Symbol
Conditions
Min.
Typ. Max.
Unit
mV
nA
V
V
-
-
-
-
-7
0
-
+7
OF
B1
Input bias current
I
-
200
High level output voltage
Low level output voltage
Output sink current
V
4.4
4.7
0.1
4
-
OH1
V
-
0.4
V
OL1
I
R =1Kohm
2
-
mA
mA
V
SINK
L
Output source current
Common mode input range
Open Loop voltage gain
Ripple rejection ratio
slew rate
I
R =1Kohm
2
4
-
SOU1
L
VICM
-
-0.3
-
4.0
G
VO1
f=1kHz, V =-75dB
IN
-
-
-
-
80
65
1.2
80
-
-
-
-
dB
dB
V/us
dB
RR1
SR1
f=120Hz, V =-20dB
IN
f=120Hz, 2Vp-p
Common Mode rejection ratio
CMRR
f=1kHz, V =-20dB
IN
Rev. 1.0.1
Jul. 2000.
7
FAN8002D2
Application Information
1. Reference Input
Pin 20 (REF) is a reference Input pin.
• Reference Input
The applied voltage at the reference input pin must be between 1.5 (V) and 3.5 (V), when Vcc = 5V.
2. Channel Mute Function
These pins are used for channel mute operation.
• When the mute pin (pin22) is Low level, the mute circuit is enabled and the output circuits are muted.(both CH1, CH2)
• When the voltage of the mute pin (pin22) is High level, the mute circuit is disabled and the output circuits operate normally.
• If the chip temperature rises above 175 °C, then the thermal shutdown (TSD) circuit is activated and the output circuits are
muted.
• Mute(pin 22)-CH1, 2 mute control input pin.
3. Protection Function
Thermal Shutdown (TSD)
• 1) If the chip temperature rises above 175 °C the thermal shutdown (TSD) circuit is activated and the output circuit is in the
Mute state, that is Off state.
• The TSD circuit has a temperature hysteresis of 25°C.
4. Focus, Tracking Actuator
• The reference voltage REF is given externally through pin 20
• The input signal is amplified by R2/R1 times and then fed to the level shift circuit.
• The level shift circuit produces the differential output voltages and drives the two output power amplifiers.
Since the differential gain of the output amplifiers is equal to 2 × (1+ R4/R3), the input signal is amplified by
(R2/R1) × 2 × (1+R4/R3).
• If the total gain is too high, you can reduce the closed loop gain by adding an external resistance at pin18, 19
• The power reference voltage (Vr) is about a half of the supply voltage(VM).
13 16
M
14 15
Power Amp
R4
R4
AP3
AP2
- +
-
+
Vr
R3
R3
-
+
LEVEL
SNIFT
AP1
R2
+
-
20
+
-
R1
Vref
Vin
18 19
Rev. 1.0.1
Jul. 2000.
8
FAN8002D2
5. Regulator & Control Function
The regulator circuit is illustrated in the figure.1.
• The capacitor is used as a ripple eliminator and should have a good temperature characteristics.
• The regulator output voltage is calculated as follows
VREG = (1 + R1 ⁄ R2) × 2.5 = 3.4V
REG2 OUT REG2 CONT
PVCC1
REG1 OUT
21
11
10
9
+
+
-
-
Regulator1
Regulator2
R1
R2
R1
R2
Figure 1.
• When the voltage of the pin21 is high (above 2.0V), the regulator operates normally.
On the other hand, when the voltage of the pin21 is low (below 0.5V), the regulator will be turned off.
Truth table is as follows
Pin#21
High
Regulator 2
Turn On
Low
Turn Off
Rev. 1.0.1
Jul. 2000.
9
FAN8002D2
6. Reset Circuit
The reset circuit is illustrated in the figure.2.
• 1) The capacitor is used for delay.
RESET IN
RESET OUT
CRST
7
24
23
R1
R2
VREG
Figure 2.
• 2) When the voltage of the pin7 is above 4.2V, the output of the reset circuit is OPEN (no load).
On the other hand, when the voltage of the pin7 is low , the output of the reset circuit is low.
Truth table is as follows
Pin#7
High
Low
Reset Output
Open
Low
7. Switch Circuit
The switch circuit is illustrated in the figure.3.
SWITCH IN
PVCC1
SWITCH OUT
9
21
8
Switch
When the voltage of the pin21 is high (above 2.0V), the output of the switch circuit is above 4.8V.
On the other hand, when the voltage of the pin21 is low (below 0.5V), the routput of the reset circuit is below 0.5V.
Truth table is as follows
Pin#21
High
Switch Output
Above 4.8v
Low
Below 0.5v
Rev. 1.0.1
Jul. 2000.
10
FAN8002D2
The regulator2 control pin and the switch control pin is same(pin21).
If the pin21 is high, first switch circuit operates and then regulator circuit operates normally.
The operation is illustrated in the following time table
Control
Signal
OFF
ON
ON
ON
Switch
Output
OFF
OFF
Reg2
Output
Delay time
Rev. 1.0.1
Jul. 2000.
11
FAN8002D2
Test Circuit
TRACKING
FOCUS
~
~
REG2
CONT
VREF
MUTE
8Ω
10µF
2
2
+
+
1
1
3
3
SW3
SW2
+
28
27
26
25
24
23
22
21
20
19
18
17
16
15
FAN8002D2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
+
+
SW1
1
2
+
RESET
INPUT
REG1
1000µF
REG2
8Ω
+
100µF
~
RIPPLE
VCC
OP-AMP
COMP IN(+)
OPIN(+)
COMP OUT
OPOUT
COMP IN(−)
OPIN(−)
&
COMPARATOR PART
A
B
D
1
2
3
1
2
3
V
OUT
50Ω
V
PULSE
V
A
V
B
C
V
CC
1
2
Rev. 1.0.1
Jul. 2000.
12
FAN8002D2
Application Circuit
(Voltage Control Mode)
[SERVO PRE AMP]
REG2
CONTROL
FOCUS TRACKING
VREF
INPUT
INPUT
MUTE
OPAMP OPAMP OPAMP
IN+
RESET
OUT
IN-
OUT
TRACKING
+
28
27
26
25
24
23
22
21
20
19
18
17
16
15
FAN8002D2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SWITCH
OUT
+
+
RESET
IN
COMP1
OUT
COMP2
OUT
COMP2 COMP2
IN-
COMP1COMP1
FOCUS
TRACKING
IN+
IN-
IN+
REG1
REG2
+
100µF
VCC
Rev. 1.0.1
Jul. 2000.
13
FAN8002D2
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
INTERNATIONAL. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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2000 Fairchild Semiconductor International
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