BD7960FM-E2 [ROHM]
Motion Control Electronic, BICMOS, PDSO44,;
| 型号： | BD7960FM-E2 |
| 厂家： | 
ROHM |
| 描述： | Motion Control Electronic, BICMOS, PDSO44, 信息通信管理 光电二极管 |
| 文件： | 总10页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BD7960FM
Optical disc ICs
Power driver IC for CD changer
BD7960FM
BD7960FM is a 6-channel driver (4-channel BTL driver + 2-channel loading driver) for car CD changer. This IC integrates
1-channel operational amplifier for various purposes. The size reduction of the set is achieved by integrating loading driver
and actuator driver into a single chip.
!Applications
CD changer
!Features
1) This circuit is a 6-channel driver IC consisting of four BTL drivers and two loading drivers.
2) Two wide dynamic range loading drivers of MOS output (RON=1.0Ω).
3) The circuit is provided with loading driver voltage setting terminals.
4) A general Opamp and Pre Opamp are built in.
5) The circuit has a mute switch.
6) The circuit has a reset terminal.
7) A thermal shutdown circuit is built in.
8) Since HSOP-M36 power package is used, the set requires a reduced space.
!Absolute maximum ratings (Ta=25°C)
Parameter
Supply voltage
Symbol
Unit
V
Limits
15
V
CC
∗
Power dissipation
Pd
W
2.2
−40~+85
Operating temperature range
Storage temperature range
Topr
Tstg
°C
°C
−55~+150
∗ Reduced by 17.6mW for each increase in Ta of 1°C over 25°C,
on less than 3% (percentage occupied by copper foil), 70mm×70mm, t=1.6mm, glass epoxy mounting.
!Recommended operating conditions (Ta=25°C)
Parameter
Supply voltage 1
Supply voltage 2
Symbol
Min.
4.5
Typ.
8.0
Max.
14.0
Unit
V
VCC
1
2
VCC
4.5
8.0
V
CC1
V
1/10
BD7960FM
Optical disc ICs
!Block diagram
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
CH4
CH3
CH6
(POWVCC
(CH5/CH6)
CC2
)
−
+
−
+
V
GND1
BIAS
(POWGND)
(CH1~4)
+
−
47k
47k
LD
CONT1
−
+
− +
−
+
−
+
47k
47k
LD
CONT2
Level shift
Level shift
47k
47k
Level shift
Level shift
−
+
−
+
+
−
+ −
MUTE
T.S.D
+
−
−
+
47k
47k
(POWGND)
(CH5/CH6)
Control
logic
Control
logic
(POWVCC
)
(CH1~4)
100
+
−
+ −
GND2
V
CC1
F
R
R
F
CH5
CH2
CH1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
The resistance values are indicated in Ω.
!Pin descriptions
Pin No. Pin name
Function
Pin No. Pin name
Function
1
2
GND2
OUT5−
POW GND (loading driver unit)
Loading driver (CH5) output −
Loading driver (CH5) output +
Loading driver (CH5) FWD input
Loading driver (CH5) REV input
Loading driver (CH6) REV input
Loading driver (CH6) FWD input
BTL driver mute terminal
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
OUT3+
OUT3−
OUT4+
OUT4−
BTL driver (CH3) output +
BTL driver (CH3) output −
BTL driver (CH4) output +
BTL driver (CH4) output −
3
OUT5+
4
IN5FWD
IN5REV
IN6REV
IN6FWD
MUTE
5
LDCONT2 Loading driver (CH6) voltage setting terminal
LDCONT1 Loading driver (CH5) voltage setting terminal
6
7
GND1
OPOUT
OPIN−
POW GND (BTL driver unit)
Opamp output
8
9
RESET
OPIN1−
OP1OUT
OPIN2−
OP2OUT
Reset output terminal
Opamp negative input
10
11
12
13
14
15
16
17
18
CH1 opamp negative input
CH1 opamp output
V
CC2
Supply voltage (loading driver unit)
Opamp positive input
OPIN+
CH2 opamp negative input
CH2 opamp output
OPIN4−
CH4 opamp negative input
OP4OUT CH4 opamp output
V
CC1
Supply voltage (BTL driver unit)
BTL driver (CH2) output −
BTL driver (CH2) output +
BTL driver (CH1) output −
BTL driver (CH1) output +
OPIN3−
CH3 opamp negative input
OUT2−
OUT2+
OUT1−
OUT1+
OP3OUT CH3 opamp output
OUT6+
OUT6−
BIAS
Loading driver (CH6) output +
Loading driver (CH6) output −
BIAS terminal
∗ Symbol of + and − (output of BTL driver) means polarity to opamp output pin.
For example if Opamp output voltage is H, BTL driver +output is H, −output is L
2/10
BD7960FM
Optical disc ICs
!Input output circuit
OUT1+/OUT1−/OUT2+/OUT2−
OUT3+/OUT3−/OUT4+/OUT4−
BIAS
V
CC1
VCC1
VCC1
10k
15~22pin
10k
36pin
3k
10k
50k
50k
10k
IN5FWD/IN5REV
IN6FWD/IN6REV
OUT5+/OUT5−
OUT6+/OUT6−
LDCONT1/LDCONT2
VCC2
VCC1
VCC1
4, 5, 6, 7
pin
200k
23, 24
pin
2, 35pin
25k
25k
3, 34pin
GND2
40k
OPIN1−/OPIN2−/OPIN3−
OPIN4−/OPIN−/OPIN+
OP1OUT/OP2OUT/OP3OUT
OP4OUT/OPOUT
VCC1
VCC1
VCC1
×6
VCC1
10, 12, 27
30, 32pin
29pin
11, 13, 26
31, 33pin
×6
MUTE
RESET
VCC1
VCC1
9pin
8pin
100
50k
50k
T.S.D
3/10
BD7960FM
Optical disc ICs
!Electrical characteristics
(unless otherwise noted, Ta=25°C, VCC1, VCC2=8V, BIAS=2.5V, RL=8Ω)
Parameter
Symbol
Min.
15
−
Typ.
25
3
Max.
Unit
mA
mA
Conditions
Under no load
Under no load
Quiescent current (VCC1)
Quiescent current (VCC2)
〈 BTL driver CH1 to CH4 〉
Output offset voltage
I
I
CC
1
2
35
CC
6
V
OFS
−40
5.4
10
0
+70
−
mV
V
Max. output amplitude
V
OM
VC
6.0
12
Closed circuit voltage gain
〈 Loading driver CH5 and CH6 〉
Output offset voltage
G
14
dB
VIN=BIAS 0.5V Opamp : Buffer
V
OFSL
OLH
−35
−
0
+35
0.70
0.25
8.0
mV
V
When brake is applied
Output saturation voltage H
Output saturation voltage L
Voltage gain
V
0.38
0.12
6.0
I
I
O
O
=500mA
=500mA
V
OLL
VLD
−
V
G
4.0
dB
LDCONT=1V
〈 Opamp and Pre Opamp CH1 to CH4〉
Input offset voltage
V
OPOFS
−5
0.3
500
2
0
−
+5
mV
V
Common mode input voltage range
Maximum output source current
Maximum output sink current
〈 Reset 〉
V
OPICM
V
CC−1.2
I
SOURCE
800
−
−
−
µA
mA
I
SINK
Output sat voltage
V
ORST
−
−
0.3
0
0.5
10
V
Output leak current
I
REAK
µA
The product is not designed for protection against radioactive rays.
4/10
BD7960FM
Optical disc ICs
!Measurement circuits
LDCONT
LDCONT
VCC2
OPAMP_B
OUT_LD
(CH6)
OPAMP_A
(CH3)
OPAMP_A
(CH4)
OUT_A
(CH4)
OUT_A
(CH3)
VB
ILDC2
IB
A
A
A
A
IQ2
ILDC1
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
CH4
CH3
CH6
−
+
−
+
VCC2
BIAS
+
−
47k
47k
LD
CONT1
−
+
− +
−
+
−
+
47k
47k
LD
CONT2
Level shift
Level shift
47k
47k
Level shift
Level shift
−
+
−
+
+
−
+
−
MUTE
T.S.D
+
−
−
+
47k
47k
Control
logic
Control
logic
100
+
−
+ −
V
CC1
F
R
R
F
CH5
CH2
CH1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
IMUTE
IQ1
A
A
A
A
A
A
IQ5F
IQ5R
IQ6R
IQ6F
100k
(CH5)
OUT_LD
(CH1)
OPAMP_A
(CH2)
OPAMP_A
(CH2)
OUT_A
(CH1)
OUT_A
VCC1
VCC1
LDINF LDINR LDINR LDINF VMUTE
The resistance values are indicated in Ω.
Fig.1
5/10
BD7960FM
Optical disc ICs
BIAS
IN−
OUT
VOFB+
+
V
OUT+
OUT−
SW3
10k
1M
OPOUT
1
V +
2
2
1
OUT+
OUT−
3
V
VO
SW4
+ V
VBOP−
IOP
10k
SW2
RL
VB
2
1
VIN
OUT_A
OPAMP_A
IN+
IN−
OUT
OUT−
OUT+
+
V
OPOUT
OUT−
OUT+
V +
SW3
V
VOLD
VOFO
10k
1M
1
+ V
V +
2
SW1
2
1
3
2
1
SW5
+ V
VBOP−
SW4
4
10k
2
2
2
1
1
IOP
SW2
VBOP
IO
IO
1
VIN
OUT_LD
OPAMP_B
Fig.2
6/10
BD7960FM
Optical disc ICs
!Switch table for measuring circuit diagrams
(unless otherwise noted, Ta=25°C, VCC1,VCC2=8V, BIAS=2.5V, VBOP=2.5V, RL=8Ω
unless otherwise noted, the switch 1 is used.)
Switching
Measurement
circuit
Parameter
Symbol
Conditions
1
2
2
2
2
2
3
4
5
Fig.1, 2
Fig.1, 2
Quiescent current
I
I
CC
1
2
LDINF=LDINR=0V, RL=
∞
∞
, ICC1=IQ1
, ICC2=IQ2
Quiescent current (BTL MUTE)
〈 BTLdriver CH1 to CH4 〉
Output offset voltage
CC
LDINF=LDINR=0V, RL=
2
V
IN=VB, VOFS=VO
IN=GND, VOM=VO
Fig.1, 2
Fig.1, 2
V
OFS
V
Max. output amplitude
VOM
Closed circuit voltage gain
(CH1 to CH4)
VIN=VB+0.5V, GVC=20log (VO/0.5)
Fig.1, 2
G
VC
〈 Loading driver CH5 and CH6 〉
Output offset voltage
V
OFSL
Fig.1, 2
Fig.1, 2
LDINF=LDINR=5V, VOFSL=VOLD
LDINF=5V, LDINR=0V, I
O
=500mA,
VOLH=VCC−OUT+
V
OLH
Output saturation voltage H
2
2
LDINF=0V, LDINR=5V, I
VOLH=VCC−OUT−
O
=500mA,
LDINF=5V, LDINR=0V, I
VOLL=OUT−
LDINF=0V, LDINR=5V, I
VOLL=OUT+
O
O
=−500mA,
=−500mA,
V
OLL
VLD
Fig.1, 2
Output saturation voltage L
Voltage gain (Loading)
G
LDCONT=1, GVLD=20log (VOLD/1V)
Fig.1, 2
〈 Opamp and Pre Opamp CH1 to CH4 〉
V
OPOFS
2
Fig.1, 2
Fig.1, 2
Input offset voltage
Common mode
VOPOFS=VOFB+
2
VOPICM=Between VIN to OPOUT
V
OPICM
input voltage range
Max. output source current
Max. output sink current
〈 Reset 〉
2
2
2
2
2
2
Fig.1, 2
Fig.1, 2
I
SOURCE
SINK
I
Output sat voltage
Output leak current
Fig.1, 2
Fig.1, 2
V
ORST
CHIP Ta=T.S.D
I
REAK
7/10
BD7960FM
Optical disc ICs
!Application example
CH3 IN
CH4 IN
LOADING1
CONT
LOADING2
CONT
BIAS
VCC2
M
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
CH4
CH3
CH6
−
+
− +
VCC2
BIAS
+
−
47k
47k
LD
CONT1
−
+
− +
−
+
−
+
47k
47k
LD
CONT2
Level shift
Level shift
47k
47k
Level shift
Level shift
−
+
−
+
+
−
+
−
MUTE
T.S.D
+
−
−
+
47k
47k
Control
logic
Control
logic
100
+
−
+ −
V
CC1
F
R
R
F
CH5
CH2
CH1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
M
M
M
V
CC1
MUTE
LOADING1
FWD IN
LOADING2
REV IN
10k
LOADING1
REV IN
LOADING2
FWD IN
RESET
OUT
CH1 IN
CH2 IN
V
CC
The resistance values are indicated in Ω.
8/10
BD7960FM
Optical disc ICs
!Operation notes
(1) BD7960FM has a built-in thermal shutdown circuit.
When the chip temperature reaches 175°C (Typ.), the output current from all drivers is muted.
When the chip temperature returns to 150°C (Typ.), the circuit of the driver unit starts up.
(2) When the mute terminal (8pin) is opened or the terminal voltage is reduced to 0.5V or less, the output current of the
BTL driver unit is muted.
In the normal state of use, pull up the voltage to 2.0V or more.
(3) When the bias terminal (36pin) voltage is reduced to 0.7V or less, the BTL driver unit is muted.
In the normal state of use, set the voltage to 1.1V or more.
(4) Thermal shutdown mutes all drivers. When the mute ON voltage and the bias terminal voltage are reduced, only the
BTL drivers are muted. But Opamp are not muted by all condition.
When the drivers are muted, the BTL driver output terminal voltage becomes the internal bias voltage (VCC1−0.7)/2V.
(5) The loading drivers operate according to the following logic.
INPUT
OUTPUT
Function
FWD
REV
L
OUT+
OUT−
L
L
Hi Z
L
Hi Z
H
High impedance
REV mode
H
H
H
L
H
L
FWD mode
H
L
L
Brake mode
The output voltage can be changed by adjusting the voltage input to the LDCONT terminal (gain of 6dB Typ.).
However, even if the input voltage is increased excessively, the output voltage will not exceed the max. output voltage
that depends on the supply voltage.
(6) Supply the same voltage to VCC1 (14pin) and VCC2 (28pin).
Insert by the pass capacitor (approx. 0.1µF) between VCC pin and GND pin of IC as near as possible.
(7) Connect the radiating fin with external GND.
(8) Output pin is to avoid short-circuit with VCC, GND and other output pins.
An integrated circuit is damaged, and smoke may come out by the case.
!Electrical characteristic curves
25
20
15
10
0
5
0
5
0
Ta=27°C
Ta=27°C
BIAS=2.5V
IN=BIAS
Circuit current
1
V
RL=∞
BIAS=
VCC
2
MUTE=H
MUTE=L
−5
−5
0
5
10
15
0
5
10
15
0
5
10
15
SUPPLY VOLTAGE : VCC (V)
SUPPLY VOLTAGE : VCC (V)
SUPPLY VOLTAGE : VCC (V)
Fig.3 Circuit current characteristic
Fig.4 OP-amp offset voltage
Fig.5 BTL driver offset voltage
9/10
BD7960FM
Optical disc ICs
8
2.0
1.5
8
5
RL=20Ω+47µF
Ta=27°C
Ta=27°C
V
CC2=VCC3=8V
RL=20Ω
BTL driver CH1
V
CC1=5V,
V
CC1=VCC2=8V
VCC2=VCC3=8V
RL=8Ω
RL=8Ω+47µF
5
0
BIAS=2.5V
BIAS=2.5V
1.0
RL=4Ω+47µF
RL=4Ω
FWD mode
(GND standard)
IN=VCC
V
0.5
0
0
−0.5
−1.0
−1.5
−2.0
REV mode
(VCC standard)
IN=GND
V
−5
−8
−5
−8
−3
−2
−1
0
1
2
3
0
100 200 300 400 500 600 700 800 900 1000
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
LDCONT VOLTAGE : VLD (V)
INPUT VOLTAGE : VIN (V)
LOAD CURRENT : IL (mA)
Fig.6 Maximum output amplitude
Fig.7 BTL driver output load regulation
Fig.8 Load driver maximum
output amplitude
5
0
Ta=27°C
3
2
1
0
Lower DMOS loss
Upper PMOS loss
−5
−8
0
25
50
75
100
125
150
0
100 200 300 400 500 600 700 800 900 1000
AMBIENT TEMPERATURE : Ta (°C)
LOAD CURRENT : IL (mA)
70mm×70mm, thickness of 1.6mm, percentage occupied by
copper foil of less than 3%, glass epoxy mounting
Fig.10 Power dissipation
Fig.9 Loading driver
output load regulation
!External dimensions (Units : mm)
18.5 0.1
36
19
18
1
0.85
0.27+−00..005455
2.77 0.1
0.8
0.08 S
0.37+−00..0054
M
0.08
HSOP-M36
10/10
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