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ICs for Compact Disc/CD-ROM Player
AN8735NSB
2-channel linear driver IC for CD/CD-ROM player
s Overview
The AN8735NSB is a 2-channel BTL driver IC for CD/CD-ROM. It is a small package version of the AN8735SB.
12.630.20 (1.90) 24 19 18 13
Unit: mm
s Features
* 2-channel of D range widening type BTL driver built in * Optimum to drive a motor actuator * 2 pieces of exclusive op-amp. built in * PC (power cut) function * Thermal shut-down circuit built-in (with hysteresis)
1 6 7 12
2.000.20
5.500.20 7.600.30
(1.05)
0.100.10
0.20 -0.05
+0.10
(0.715)
(3.20) 0.80
+0.10 0.30-0.05
0 to 10 0.500.20
s Applications
* Car CD player * CD/CD-ROM player
Seating plane
HSOP030-P-0300
s Block Diagram
PVCC1 PVCC2 VO1- VO1+ VO2- VO2+ 11 SVCC 6
18
14
17
8
1 V 2 CC 12 PGND 13
VCC det.
Temp. det.
1 V 2 CC PGND 5
Reset
7
VREF det.
OP2 4 3 2 OP1 1
Fin
24
16 22 21 23 VREF PC1 IN1 IN2 PC2 9
1
AN8735NSB
s Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Description Op-amp. 1: inverted inpuit pin Op-amp. 1: output pin Op-amp. 2: non-inverted input pin Op-amp. 2: inverted inpuit pin Op-amp. 2: output pin Power supply pin Driver power supply pin 2 Driver-2 reverse rotation output pin Power cut input pin 2 N.C. Driver-2 forward rotation output pin Driver GND pin 1 Driver GND pin 2
ICs for Compact Disc/CD-ROM Player
Pin No. 14 15 16 17 18 19 20 21 22 23 24 Fin
Description Driver-1 reverse rotation output pin N.C. Power cut input pin 1 Driver-1 forward rotation output pin Driver power supply pin 1 N.C. N.C. VREF input pin Driver-1 input pin Driver-2 input pin Op-amp. 1: non-inverted input pin GND pin
s Absolute Maximum Ratings
Parameter Supply voltage Supply current
*2 *1
Symbol VCC ISVCC IPVCC1 , IPVCC2
Rating 14.4 250 800 390 -30 to +85 -55 to +150
Unit V mA
Power dissipation
PD Topr Tstg
*1
mW C C
Operating ambient temperature Storage temperature
Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25C. *2: Referring to "s Usage Notes", use within the range of PD = 390 mW or less at Ta = 85C, following the allowable power dissipation characteristic curve of "s Application Notes".
s Recommended Operating Range
Parameter Supply voltage Symbol SVCC PVCC1 , PVCC2 Range 4.5 to 14 3.5 to 14 Unit V
2
ICs for Compact Disc/CD-ROM Player
AN8735NSB
s Electrical Characteristics at SVCC = 12 V, PVCC1 = PVCC2 = 5 V, VREF = 1.65 V, RL = 8 , VPC1 = 5 V, VPC2 = 5 V, Ta = 25C
Parameter Current consumption 1 with no signal Current consumption 2 with no signal Current consumption 3 with no signal Driver 1, 2 RL1 = RL2 = 8 VDROF G1+ G1 VL1+ VL1- VIN = 3.3 V VIN = 0 V SVCC = 12 V SVCC = 12 V SVCC = 12 V, IOP = +2 mA SVCC = 12 V, IOP = -2 mA SVCC = 12 V SVCC = 12 V SVCC = 12 V SVCC = 12 V SVCC = 12 V SVCC = 12 V SVCC = 12 V, PC1 = 5 V SVCC = 12 V, PC2 = 5 V IIN1 = IIN2 = 0 A RIN1 = RIN2 = 10 k, VIN = VREF 50 mV -65 21.5 - 0.7 3.8 -10 -2 10 2.0 2.0 0 22.9 4.25 -4.25 65 24.3 +0.7 -3.8 mV dB dB V V Symbol ISVCC IPVCC1 IPVCC2 Conditions IIN1 = IIN2 = 0 A, PC1 = PC2 = 0 V IIN1 = IIN2 = 0 A, PC1 = 0 V IIN1 = IIN2 = 0 A, PC2 = 0 V Min Typ 2.5 0.3 0.3 Max 5 1 1 Unit mA mA mA
Output offset voltage Gain (+) Relative gain (+/-) Maximum output amplitude (+) Maximum output amplitude (-) Op-amp. 1, 2 Input offset voltage Input bias current High-level output voltage Low-level output voltage Output driving current sink Output driving current source Power cut operation PC1 threshold high-level voltage PC1 threshold low-level voltage PC2 threshold high-level voltage PC2 threshold low-level voltage PC1 input current PC2 input current Reset circuit Reset operation release supply voltage VREF detection voltage
VOPOF IBOP VOH VOL ISIN ISOU
0 - 0.5 70 70
10 0 0.9 1.0 1.0 140 140
mV A V V mA mA
VPC1H VPC1L VPC2H VPC2L IPC1 IPC2 VRST VR
2.9 2.9 1.35
V V V V A A
4.5
V V
3
AN8735NSB
ICs for Compact Disc/CD-ROM Player
s Electrical Characteristics at SVCC = 12 V, PVCC1 = PVCC2 = 5 V, VREF = 1.65 V, RL = 8 , VPC1 = 5 V, VPC2 = 5 V, Ta = 25C (continued)
* Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter Thermal protection circuit Operating temperature equilibrium value Operating temperature hysteresis width Supply voltage detection hysteresis width
Symbol
Conditions
Min
Typ
Max
Unit C C V
TTHD TTHD VHD
160 45 0.2
s Usage Notes
1. Be sure to use SVCC in the maximum potential. Otherwise, it is likely to cause an operating error. 2. On driver gain setting, Power amp. voltage gain: 23 dB
10 k Input
Pin 22 or pin 23 Input pin
10 k 200
Pin17 or pin 11 Pin14 or pin 8
5.5 k VREF VREF
Power amp. Output pin
Load
3. On operating mode of mute, 1) Driver PC1 High Channel 1 Channel 2 2) General-use op-amp. PC1 High PC2 High Low (open) Active Active Low (open) Active Mute Active Low (open) Mute High Active PC2 Low (open) Mute
4. Appropriate care should be taken on the characteristics. When changing an external circuit constant on actual use, secure an appropriate margin in consideration of characteristic fluctuation of external parts and our ICs including transient characteristics as well as static ones. 5. Avoid the short-circuits between output pin and VCC , output pin and GND (line-to-supply and line-to-ground), and between output pins (load short-circuit). Otherwise, the IC is likely to emit smoke and break down. 6. An appropriate prior study should be done for use of dip soldering.
4
ICs for Compact Disc/CD-ROM Player
s Application Notes
* PD Ta curves of HSOP030-P-0300 PD T a
4.500 4.152 4.000 3.500
AN8735NSB
Power dissipation PD (W)
Infinite a heat sink Rth(j-c) = 30.1C/W
3.000 2.500 Mounted on standard board (glass epoxy: 50 mm x 50 mm x t0.8 mm) Rth(j-a) = 93.1C/W
2.000 1.500 1.343 1.000
0.686 0.500 Independent IC without a heat sink Rth(j-a) = 182.0C/W 0.000 25 50 0
75
100
125
150
Ambient temperature Ta (C)
s Application Circuit Example
VO1- VO1+ VO2- VO2+
PVCC1
18
14
17
SVCC
11
6
8
1 V 2 CC PGND 12 GND 13
VCC det.
Temp. det.
1 V 2 CC 5 PGND OP2 4 3 2 OP1 1 24
Reset VREF det.
Fin
16
RIN1 = 10 k 22
21
RIN2 = 10 k 23
PC1
VREF
IN1
IN2
PC2
9
7
PVCC2
5
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(1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: * Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. * Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company.
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2001 MAR

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