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BD7962FM
Optical disc ICs
Power driver IC for CD changer
BD7962FM
BD7962FM is a 6-channel driver (3-channel BTL driver + 3-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 three BTL drivers and three loading drivers. 2) Two wide dynamic range loading drivers of MOS output (RON=1.0). 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=25C)
Parameter Supply voltage Power dissipation Operating temperature range Storage temperature range Symbol VCC Pd Topr Tstg Limits 15 2.2 -40 to +85 -55 to +150 Unit V W C C
Reduced by 17.6mW for each increase in Ta of 1C over 25C, on less than 3% (percentage occupied by copper foil), 70mmx70mm, t=1.6mm, glass epoxy mounting.
!Recommended operating conditions (Ta=25C)
Parameter Supply voltage 1 (CH1, CH2) Supply voltage 2 (CH3, CH4) Supply voltage 3 (CH5, CH6) Symbol VCC1 VCC2 VCC3 Min. 4.5 4.5 4.5 Typ. 5.0 8.0 8.0 Max. VCC3 14.0 14.0 Unit V V V
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BD7962FM
Optical disc ICs
!Block diagram
36
35
CH6
34
33
32
31 F
30 R
29
28
27
26
25
24
23
22
CH4
21
20
CH3
19
10k
10k
10k
10k
+- + 47k -+ 47k Control logic F
CH5
Level shift
Level shift
47k -+ -+
47k
Level shift + -
Level shift + -
LD CONT2 LD CONT3
47k
47k
Control logic R R F
+ -
+ -
+ -
VCC1
CH2
CH1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
!Pin descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Pin name GND2 OUT5- OUT5+ IN5FWD IN5REV IN6REV IN6FWD LDCONT2 LDCONT3 OPIN1- OP1OUT OPIN2- OP2OUT VCC1 OUT2- OUT2+ OUT1- OUT1+ Function 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 Loading driver (CH5) voltage setting terminal Loading driver (CH6) voltage setting terminal CH1 opamp negative input CH1 opamp output CH2 opamp negative input CH2 opamp output Supply voltage (CH1, CH2) BTL driver (CH2) output - BTL driver (CH2) output + BTL driver (CH1) output - BTL driver (CH1) output + Pin No. 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Pin name OUT3+ OUT3- OUT4+ OUT4- VCC2 Function BTL driver (CH3) output + BTL driver (CH3) output - Loading driver (CH4) input + Loading driver (CH4) input - Supply voltage (CH3, CH4)
LDCONT1 Loading driver (CH4) voltage setting terminal GND1 OPOUT OPIN- VCC3 MUTE IN4REV IN4FWD OPIN3- OP3OUT OUT6+ OUT6- BIAS POW GND (BTL driver unit) Opamp output Opamp negative input Supply voltage (CH5, CH6) BTL driver mute terminal Loading driver (CH4) REV input Loading driver (CH4) FWD input CH3 opamp negative input CH3 opamp output 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
+ -
18
+
-
+
-
-+
-+
- T.S.D +
BIAS
Control logic
VCC3 MUTE +- LD CONT1
VCC2
+ - 10k 10k 10k
+ - 10k
+ - 10k 10k 10k
+ - 10k
-
-
+
10k
10k
10k
10k
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BD7962FM
Optical disc ICs
!Input output circuit
BIAS OUT1+/OUT1-/OUT2+/OUT2- OUT3+/OUT3-/OUT4+/OUT4-
VCC2 VCC2 VCC2 (CH3 / CH4) VCC1 (CH1 / CH2)
10k pin36 3k 10k 50k 50k 10k 10k
pin15~22
IN4FWD/IN4REV
LDCONT1
OUT5+/OUT5- OUT6+/OUT6-
VCC3
VCC2 VCC2 pin2, 35 50k pin24 50k 50k 50k 47k
pin30, 31
pin3, 34
GND2
IN5FWD/IN5REV IN6FWD/IN6REV
LDCONT2/LDCONT3
OPIN1-/OPIN2- OPIN3-/OPIN-
VCC2 pin4, 5, 6, 7 VCC2 VCC2 pin10, 12, 27, 32 25k pin8, 9 25k 40k BIAS
200k
OP1OUT/OP2OUT OP3OUT/OPOUT
VCC2 VCC2
MUTE
x6
VCC2 pin29 pin11, 13, 26, 33 50k
50k x6
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BD7962FM
Optical disc ICs
!Electrical characteristics (unless otherwise noted, Ta=25C, VCC1=5V, VCC2=VCC3=8V, BIAS=1.65V, RL=8)
Parameter Quiescent current (VCC1) Quiescent current (VCC2) Quiescent current (VCC2) BTL driver CH1 to CH3 Output offset voltage Max. output amplitude (CH1, CH2) Max. output amplitude (CH3) Closed circuit voltage gain Mute terminal sink current Bias terminal sink current Loading driver CH4 to CH6 Output offset voltage Max. output amplitude (CH4) Output saturation voltage H (CH5, CH6) Output saturation voltage L (CH5, CH6) Voltage gain Input terminal sink current LDCONT terminal source current (LDCONT1) LDCONT terminal source current (LDCONT2, 3) Opamp and Pre opamp CH1 to CH3 Input offset voltage Input bias current Common mode input voltage range Maximum output source current Maximum output sink current Slew rate
The product is not designed for protection against radioactive rays.
Symbol
Min. - 11.5 1.9 -40 3.7 5.4 10 - - -35 5.4 - - 4.0 - - - -5 - 0.3 500 2 -
Typ. 0.30 23 3.8
Max. 0.70 32 5.7 +70 - - 14 125 120 +35 - 0.70 0.25 8.0 270 0.5 300
Unit mA mA mA
Conditions Under no load Under no load Under no load
ICC1 ICC2 ICC3
VOFS VOM1 VOM2 GVC IMUTE IBIAS
0 4.0 6.0 12 80 75
mV V V dB A A
VIN=BIAS0.5V Opamp : Buffer
VMUTE=5V VBIAS=2.5V
VOFSL VOML VOLH VOLL GVLD IINL ILDC1 ILDC2
0 6.0 0.38 0.12 6.0 180 - -
mV V V V dB A mA nA
When brake is applied RL=8 IO=500mA IO=500mA LDCONT=1V LDIN=5V LDCONT=5V LDCONT=5V
VOPOFS IOPIB VOPICM ISOURCE ISINK SR
0 - - 800 - 2
5 300 VCC-1.2 - - -
mV nA V A mA V/s
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BD7962FM
Optical disc ICs
!Measurement circuits
FIN VBIAS
LDDRV_B (CH6) OPAMP_B (CH3)
OUT INN
RIN
VMUTE
VCC3
CONT
VCC2
OPAMP_B
OUT INN
LDDRV_B (CH4)
DRIVE_B (CH3)
IQB
A
36
R
F
A
IFIN IRIN 31 F
A
30 R
A
IMUTE 29 IQ3
A
28
A
ICONT IQ2 25 24
A
23
R
F
R
F
35
CH6
34
33
32
27
26
22
CH4
21
10k
20
CH3
19
10k
10k
10k
+- + 47k -+ 47k Control logic F
CH5
Level shift
Level shift
47k -+ -+
47k
Level shift + -
Level shift + -
LD CONT2 LD CONT3
47k
47k
+ -
Control logic R R F
+ -
+ -
VCC1
CH2
CH1
1
2
R
3
F
4
5
6
7
8
9 ICONT ICONT
10
INN
11
OUT
12
INN
13
OUT
14 IQ1
15
R
16
F
17
R
A
IFIN
A
IRIN
A
IRIN
A
IFIN
A
A
A
(CH5) LDDRV_B
(CH1) OPAMP_B
(CH2) OPAMP_B
(CH2) DRIVE_B
(CH1) DRIVE_B
VCC1 FIN RIN RIN FIN CONT CONT The resistance values are indicated in .
Fig.1
+ -
18
F
5/10
+
-
+
-
-+
-+
- T.S.D +
BIAS
Control logic
VCC3 MUTE +- LD CONT1
VCC2
+ - 10k 10k 10k
+ - 10k
+ - 10k 10k 10k
+ - 10k
-
-
+
10k
10k
10k
10k
BD7962FM
Optical disc ICs
BIAS
VOFB+ VOFB-
INN
OUT
V V
+ +
SW2
1 2
10k
OPOUT
V
1M 3 4 10k
SW1
+
1
2
SW3
+
V
VBOP-
IOP
VBIAS 2 VIN 1
OPAMP_B
F
R
F
R
OUTF
+
OUTR
V
+
+
OUTF
VOLD
+
OUTR
V
SW4
V
+
V V
V
VO (VOLD)
+
2 1
1
2
RL IO IO
DRIVE_B LDDRV_B
Fig.2
6/10
BD7962FM
Optical disc ICs
!Switch table for measuring circuit diagrams (unless otherwise noted, Ta=25C, VCC1=5V, VCC2=VCC3=8V, BIAS=1.65V, RL=8 Unless otherwise specified, the switch 1 is used.)
Parameter Quiescent current (VCC1) Quiescent current (VCC2) Quiescent current (VCC3) BTLdriver CH1 to CH3 Output offset voltage Max. output amplitud (CH1, CH2) Max. output amplitud (CH3) Closed circuit voltage gain(CH1 to CH3) Difference between positive and negative voltage gains (CH1 to CH3) Mute terminal sink current Bias terminal sink current Loading driver CH4 to CH6 Output offset voltage Max. output amplitud (CH4) Output saturation voltage H (CH5, 6) Output saturation voltage L (CH5, 6) Voltage gain (Loading) Difference between positive and negative voltage gains (Loading) Input terminal sink current LDCONT terminal source current Opamp and Pre opamp CH1 to CH3 Input offset voltage Input bias current Common mode input voltage range Max. output source current Max. output sink current Slew rate
1 FIN=5V, RIN=0V, VOLH=VCC-OUT+ FIN=0V, RIN=5V, VOLH=VCC-OUT- 2 FIN=5V, RIN=0V, VOLL=OUT- FIN=0V, RIN=5V, VOLL=OUT+
Symbol
Switching 1 2 2 2 2 3 4
Conditions
Measurement circuit Fig.1, 2 Fig.1, 2 Fig.1, 2
ICC1 ICC2 ICC3
Under no load Under no load Under no load
VOFS VOM1 VOM2 GVC GVC IMUTE IBIAS
2
VOFS=VO VIN=GND, VOM1=VO VIN=GND, VOM1=VO
2
Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2
VIN=VB0.5V, GVC=20log (VO/0.5)
VMUTE=5V, IMUTE=IMUTE VB=2.5V, IBIAS=IB
Fig.1, 2 Fig.1, 2
VOFSL VOML VOLH VOLL GVLD GVLD IINL ILDC
2 2
FIN=RIN=5V, VOFSL=VOLD FIN=5V, RIN=0V,VOML=LOLD IO=500mA
1
Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2
IO=500mA2 CONT=1V, GVLD=20log (VOLD/1V)
FIN=RIN=5V, IINL=IFIN, IRIN CONT=5V, ILDC=ICONT
Fig.1, 2 Fig.1, 2
VOPOFS IOPIB VOPICM ISOURCE ISINK SR
2 2 3 2 2 2 2 2 2 2 2
VOPOFS=VOFB+ IOPIB=VBOP-/1M VOPICM : VIN=OPOUT range
Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2
VIN=f : 100kHz, 1V to 3V pulse
Fig.1, 2
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BD7962FM
Optical disc ICs
!Application example
IN3 RV4 OPIN LDCONT1 BIAS FD4 MUTE VCC3 10k 36 35
CH6
10k
10k
VCC2 10k
M
34 33 32 31 F +- + BIAS 47k -+ 47k Control logic - 30 R 29
M
22
CH4
M
21 20
CH3
28
27
26
25
24
23
19
10k
10k
10k
10k
VCC3 MUTE +-
VCC2 (CH3,CH4)
+ - 10k 10k
+ - 10k
+ - 10k
+ -
LD CONT1 T.S.D
Level shift
Level shift
47k -+ -+
47k
Level shift + -
Level shift + -
LD CONT2 LD CONT3
47k
47k
Control logic F
CH5
Control logic R R F
+ -
+ -
+ -
(CH1,CH2) VCC1
CH2
CH1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
M
FD5 RV6 LDCONT2 10k
10k 10k
10k
VCC1
LDCONT3 RV5 FD6 IN1 IN2 The resistance values are indicated in .
Fig.3
!Operation notes (1) BD7962FM has a built-in thermal shutdown circuit. When the chip temperature reaches 175C (Typ.), the output current from all drivers is muted. When the chip temperature returns to 150C (Typ.), the circuit of the driver unit starts up. (2) When the mute terminal (pin29) is opened or the terminal voltage is reduced to 0.5V or less, the output current of the BTL driver (CH1CH3) unit is muted. In the normal state of use, pull up the voltage to 2.0V or more. (3) When the bias terminal (pin36) voltage is reduced to 0.7V or less, the BTL driver (CH1CH3) 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 (CH1, CH2) output terminal voltage becomes the internal bias voltage VCC1/2V and the BTL driver (CH3) output terminal voltage become the internal bias voltage (VCC2-0.7)/2V.
+ -
18
8/10
+
-
+
-
10k
10k
10k
10k
-+
-+
+
-
-
+
10k
10k
10k
10k
BD7962FM
Optical disc ICs
(5) The loading drivers operate according to the following logic.
INPUT FWD L L H H REV L H L H OUTPUT OUT+ Hi Z L H L OUT- Hi Z H L L Function High impedance REV mode FED mode 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. When the LDCONT terminal (pin 8, 9, 24) voltage is reduced to 0.7V or less, the loading driver is High impedance mode. But loading driver (CH4) output terminal voltage becomes the internal bias voltage (VCC1-0.7)/2V. (6) Supply voltage of VCC2 (pin23) should be equal to or higher than VCC1 (pin14) and VCC3 (pin28). Insert by the pass capacitor (approx. 0.1F) 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
3
70mmx70mm, thickness of 1.6mm, percentage occupied by copper foil of less 3%, glass epoxy mounting.
400
CIRCUIT CURRENT : ICC1 (mA)
Ta=27C
30
CIRCUIT CURRENT : ICC2 (mA)
MUTE : H L MUTE : H Ta=27C
POWER DISSIPATION : (W)
25 20 15 10 5 0
MUTE : L Ta=27C
300
2
200
1
100
0
0
25
50
75
100
125
150
0
0
5
10
15
0
5
10
15
AMBIENT TEMPERATURE : Ta (C)
SUPPLY VOLTAGE : VCC1 (V)
SUPPLY VOLTAGE : VCC2 (V)
Fig.4 Power dissipation
Fig.5 Circuit current characteristic VCC1
Fig.6 Circuit current characteristic VCC2
6
CIRCUIT CURRENT : ICC3 (mA)
10
Opamp 1 BIAS= VCC 2
10
OUTPUT VOLTAGE : VO (V)
OUTPUT VOLTAGE : VO (V)
5 4 3 2 1 0
CH1, CH2 VCC1=5V, VCC2=VCC3=8V BIAS=1.65V
5 20 4 3 2 1 8
HH
5
8V
-2.0
-1.5
-1.0
-0.5
0 0.5 -1 -2 -3 -4
1.0
1.5
2.0
5V
0
5
10
15
0
0
5 INPUT VOLTAGE : VIN (V)
10
0
0
-5
10
SUPPLY VOLTAGE : VCC3 (V)
INPUT VOLTAGE : VIN (V)
Fig.7 Circuit current characteristic VCC3
Fig.8 Input output characteristic
Fig.9 Input output characteristic
9/10
BD7962FM
Optical disc ICs
10
CH3 VCC1=5V, VCC2=VCC3=8V BIAS=2.5V
1.5
20 8
VCC1=5V, VCC2=VCC3=8V BIAS=2.5V, Ta=27C
VCC2=VCC3=8V
0.5 0 -0.5 -1.0 -1.5 LOAD CURRENT : IO (mA)
100 200 300 400 500 600 700 800 900 1000
OUTPUT VOLTAGE : VO (V)
OUTPUT VOLTAGE : VO (V)
LOSS VOLTAGE : VLOSS (V)
5
1.0
5
8+47H
-3
-2
-1
0
1
2
3
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-5
-5
0
0
10
INPUT VOLTAGE : VIN (V)
LDCONT VOLTAGE : VCONT (V)
Fig.10 Input output characteristic
Fig.11 Output load current regulation
Fig.12 Input output characteristic
1.5
VCC2=VCC3=8V
LOSS VOLTAGE : VLOSS (V)
1.0 0.5 0 -0.5 -1.0 -1.5 LOAD CURRENT : IO (mA)
100 200 300 400 500 600 700 800 900 1000
Fig.13 Output load current regulation
!External dimensions (Units : mm)
18.50.1
36 19
9.90.2
7.50.1
0.85 1
18
2.4Max.
2.770.1 0.8 0.37+0.05 -0.04
0.27+0.055 -0.045 0.08 S 0.08 M
2.20.05 0.10.05
HSOP-M36
0.50.15 1.20.2
10/10
Appendix
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 use silicon as a basic material. Products listed in this document are no antiradiation design.
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 with 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. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0

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