PANASONIC AN8377N

ICs for CD/CD-ROM Player
AN8377N
3-channel Linear Driver
■ Overview
Unit : mm
(maximum drive current : 500mA)
Stable circuit operation against supply voltage change
and temperature change due to the built-in stabilized
power supply
• Built-in +5V low drop power supply (external PNP
power transistor)
• Built-in reset circuit (reset voltage : 4.82V)
• Built-in thermal protective circuit (operating temperature : 159 ; typ.)
• Built-in power cut circuit (motor driver 1 only)
1.7
1.5±0.1
17
•
0.5±0.1
16
15
14
13
12
11
10
9
0.560.1
3.80±0.3
ø2.1
+ 0.1
0 ~ 6˚
0.45 – 0.05
7.62±0.25
16-Lead DIP Package with Fin (HDIP016-P-0300)
■ Applications
Linear driving of the DC motors and actuators of the
CD players, CD radio cassette tape recorder, and so on.
■ Block Diagram
15
13
14
BTL
Motor
Driver 1
RST
Thermal
Shutdown
9
10
BTL
Motor
Driver 3
11
12
BTL
Motor
Driver 2
5V
Regulator
(low–sat)
3
4
–
16
Error
Amp.
+
5
–
Error
Amp.
+
7
100kW
Band–
gap
(2.5V)
100kW
2
100kW
1
VCC
3.05±0.25
1.06±0.25
1.2±0.25
1
2
3
4
5
6
7
8
4.70.25
2.54 2.54
27.4±0.3
■ Features
• Operating supply voltage range ; VCC=5.5V to 18V
• Built-in 3 circuits of voltage BTL drivers
21.6±0.3
6.35±0.3
5.08±0.1
The AN8377N is an IC which incorporates 3 circuits of
BTL drivers for driving various DC motors such as actuators (focus, tracking, traverse), spindles, and loading of
the CD players, and the +5V low drop type power supply.
–
P VCC
F GND
Error
Amp.
+
6
8
VREF
(1⁄2VCC)
ICs for CD/CD-ROM Player
AN8377N
■ Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Rating
VCC
20
Supply Voltage
Unit
V
Power Dissipation
PD
1500
Operating Ambient Temperature
Topr
–25 ~ +80
˚C
Storage Temperature
Tstg
–55 ~ +150
˚C
mW
■ Recommended Operating Range (Ta=25˚C)
Parameter
Symbol
Range
Operating Supply Voltage Range
VCC
5.5V ~ 16V
■ Electrical Characteristics (Ta=25˚C)
Parameter
Symbol
Condition
min.
typ.
max.
Unit
7
10.5
15
VCC=12V, RL=50W
4.75
5
5.25
V
DVRI
VCC=12V, RL=50W ~ 25W
–15
30
mV
DVRVC
VCC=15.5V ~ 5.5V , RL=50W
–15
50
mV
No Load Current
ICC
VCC=12V
5V Regulator Output Voltage
VRO
5V Regulator Load Change
5V Regulator Input Change
mA
Reset Threshold Voltage
VRST
4.55
4.82
5.1
V
Reset Threshold Hysteresis Width
VHYS
90
170
310
mV
Reset Operating Minimum Voltage
VR (min.)
Input Offset Voltage
VIOF
Output Offset Voltage
VOOF
Minimum VCC Voltage
at which V15=Low
VCC=18V, RL=20W,
RIN=10kW
VCC=18V, RL=20W,
RIN=10kW
VCC=18V, RL=20W,
RIN=10kW
VCC=18V, RL=20W,
RIN=10kW
VCC=18V, RL=20W,
RIN=10kW
VCC=18V, RL=20W,
RIN=10kW
VCC=18V, RL=20W,
RIN=10kW
V
3.1
–7
7
mV
–50
50
mV
22.5
dB
– 0.85
0.85
dB
7.1
10.9
V
–10.9
–7.1
V
–10
30
mV
1.2
V
Gain (+)
G+
(+) (–) Relative Gain
GR
Limit Voltage (+)
VL+
Limit Voltage (–)
VL–
Dead Zone Width
VDZ
PC Input Threshold (L)
VPCL
VCC=18V
PC Input Threshold (H)
VPCH
VCC=18V
2.8
Motor Driver 2 Output Voltage at Reset
V2RS
VCC=3.5V, RL=10kW
–50
50
mV
Motor Driver 3 Output Voltage at Reset
V3RS
VCC=3.5V, RL=10kW
–50
50
mV
Motor Driver 1 Output Voltage at Reset
V1RS
VCC=3.5V, RL=10kW
–50
50
mV
5V Regulator External Transistor Base
Current Limit Value
I3LIM
16
mA
Thermal Protective Circuit Operating
Temperature Balancing Value
TTHD
159
˚C
Thermal Protective Circuit Operating
Temperature Hysteresis Width
DTTHD
64
˚C
16.5
9
20
V
12
Note) The specified values of VIOF, VOOF, G+, GR, VL+, VL– , and VDZ are common ones for each of the motor driver 1, motor driver 2,
and motor driver 3 circuits.
ICs for CD/CD-ROM Player
AN8377N
■ Application Circuit
(Used when driving the focus, tracking actuator, and traverse motor)
from
MN6622
or
MN6625
+5V
M
20kW
16
15
14
13
12
11
10
9
AN8377N
1
2
3
4
5
F
6
7
8
A1547
PVCC
VCC
Motor Driver 3
+
22mF
Motor Driver 2
5V
Motor Driver 1
(shot circuit possible)
VREF
(typ.2.5V)
■ Pin Descriptions (The following description applies when the 3 channels for the motor drivers 1, 2, and 3 are used.)
Pin No.
Symbol
I/O
DC Voltage
(VCC/12V)
Equivalent Circuit
Description
1
1
PVCC
I
12V
2
VCC
I
12V
3
TB
O
11.3V
Power VCC pin.
Supplies a current flowing to
the output power transistor.
33
VCC pin.
Not connected to the power
VCC pin.
2
3
External PNP transistor base
connection pin
4
10kW
10kW
4
VMON
I
5V
External PNP transistor
collector connection pin
(=5V output pin)
ICs for CD/CD-ROM Player
AN8377N
■ Pin Descriptions (Cont.) (The following description applies when the 3 channels for the motor drivers 1, 2, and 3 are used.)
DC Voltage
(VCC/12V)
Pin No.
Symbol
I/O
Equivalent Circuit
Description
15
RST
O
F
GND
I
0V
8
VREF
I
2.5V
5
TVDI
I
2.5V
6
FDI
I
2.5V
7
TDI
I
2.5V
9
TD –
O
(0.3V)
10
TD+
O
(0.3V)
BTL driver 3 non-inverting
output pin
11
FD –
O
(0.3V)
BTL driver 2 inverting output
pin
12
FD+
O
(0.3V)
BTL driver 2 non-inverting
output pin
13
TVD –
O
(0V)
15
Reset output pin.
Open collector output type.
200W
F
GND pin
····
VREF input pin
8
Driver 1 error input pin
5
Driver 2 error input pin
500W
or
6
14
TVD+
O
or
Driver 3 error input pin
7
(P VCC)
BTL driver 3 inverting output
pin
(0V)
9
10
or
or
11
12
or
or
13
14
BTL driver 1 inverting output
pin
BTL driver 1 non-inverting
output pin
16
16
PC
I
0V
PC (power cut) input pin