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Ordering number : ENN7740
SANYO Semiconductors
DATA SHEET
LA6568
Overview Functions
Six-Channel Driver for Optical Disc Drives
Monolithic Linear IC
The LA6568 is a six-channel driver for optical disc drives that includes built-in 3.3 V and 5 V regulators.
* Six power amplifier channels * IOmax: 700 mA * Built-in level shifter circuits (for the BTL amplifiers) * Muting circuit (output on/off control) for one channel * Built-in 3.3 V power supply (IOmax 300 mA) * Built-in 5 V power supply (IOmax 5 mA) * Thermal protection circuit (thermal shutdown circuit)
Specifications
Absolute Maximum Ratings at Ta
Parameter Maximum supply voltage Maximum output current Maximum input voltage Mute pin voltage Allowable power dissipation Operating temperature Storage temperature Note 1: Mounted on a board (76.1 114.3
25 C
Conditions Ratings 14 0.7 Each channel for Ch.1 to Ch.6 Mounted on a board 1 Independent IC 13 13 2.00 1.20 30 to 85 55 to 150 Unit V A V V W C C
Symbol VCC max IO max VINB max VMUTE Pd max Topr Tstg 1.66 mm) Material: glass epoxy
Recommended Operating Conditions at Ta
Parameter Supply voltage Symbol VCC
25C
Conditions Ratings 6 to 13 Unit V
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co., Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
81004TN(OT) No.7740-1/8
LA6568
Electrical Characteristics (Unless specified otherwise, the conditions are Ta = 25C, S-VCC = P-VCC = 8 V, VREF = 1.65 V)
Parameter [Overall] No load current drain - outputs on No load current drain - outputs off VREF input voltage range [BTL Amplifier Block] Output offset voltage Input voltage range Output voltage Closed circuit voltage gain 1 Closed circuit voltage gain 2 Slew rate Muting on voltage Muting off voltage [Loading Block] Voltage between outputs: F Voltage between outputs: R Output voltage range: F Output voltage range: R Output offset voltage Input current [3.3 V Regulator Block] Output voltage Line regulation Load regulation [5 V Regulator Block] Output voltage Line regulation Load regulation [0-RESET Block] (Operating for VREF) High-level reset output voltage Low-level reset output voltage 0-RESET threshold voltage 0-RESET hysteresis VORH VORL VRT VHYS With a 10 k With a 10 k resistor between VCC and RESET resistor between VCC and RESET 0.5 50 0.7 100 6.5 0.5 0.9 200 V V V mV VO-REG2 V-LIN1 V-LOAD When IO = 3 mA When IO When IO 3 mA, VCC 1 to 3 mA 6 to 12 V 4.75 5 100 100 5.25 V mV mV VO-REG1 V-LIN1 V-LOAD1 IO 100 mA 100 mA, VCC 0 to 200 mA 6 to 12 V 3.15 100 100 3.3 3.45 100 100 V mV mV When IO When IO VOF VOR VOMF VOMR VOFF I-IN VIN VIN VIN VIN 2 V, VIN 0 V, VIN 5 V, VIN 0 V, VIN 0V 2V 0 5V 50 2.5 3.3 4.5 2.9 2.9 5.0 5.0 4.5 50 500 3.3 2.5 V V V V mV A VOFF VIN VO VG1 VG2 SR VMUTE-ON VMUTE-OFF The voltage between the VO and VO outputs when RL 8 2 The gain between input and output for channels 1, 4, and 5 The gain between input and output for channel 2. Input resistance: 11 k Twice the value between each output pair 3 For each of the muting functions 4 For each of the muting functions 4 2 The voltage difference between the output amplifier outputs, for each channel 50 0 4 1.6 3.5 4.5 2 4 1 0.5 2.4 4.5 50 VCC mV V V Multiplier Multiplier V/ s V V ICC-ON ICC-OFF VREF-IN All outputs on 1 All outputs off 1 0.5 30 10 50 20 VCC-1.5 mA mA V Symbol Conditions Ratings min typ max Unit
Potential difference between the outputs when braking is applied When VIN 3.3 V
Note 1: The combined current drain for P-VCC and S-VCC with no load 2: The voltage difference across the load (8 ) terminals. With the outputs in the saturated state. 3: Design target value. Parameters are not tested. 4: When IN-MUTE is high: output on, when IN-MUTE is low: output off (high-impedance state)
No.7740-2/8
LA6568
Package Dimensions unit: mm 3196A
SANYO : DIP30S-D (400mil)
Pin Functions
Pin No. 20 19 12 13 Symbol VIN1 VIN2 VIN4 VIN5 Pin name Input Inputs Pin description
VIN
Equivalent circuit
Vref
26 25 28 27 6 5 4 3 2 1 30 29 10
VO1 VO1 VO2 VO2 VO4 VO4 VO5 VO5 VO3 VO3 VO6 VO6 IN-MUTE
Output
Outputs
OUT
Mute
Controls the on/off state of the outputs. IN-MUTE high: outputs on IN-MUTE low: outputs off
VCC
IN-MUTE 100k S-GND 100k
Continued on next page.
No.7740-3/8
LA6568
Continued from preceding page. Pin No. 11 Symbol O-RESET Pin name Reset Pin description Open-collector output Equivalent circuit
15 14 17 18
VIN3 VIN3 VIN6 VIN6
Input (Loading block)
Inputs
100k
50k
16
5VREG
5VREG
5 V regulator output
22
3.3VREG
3.3VREG
3.3 V regulator output
5.46k
8.87k
13k
39k
No.7740-4/8
LA6568
Block Diagram
2 Level shift Level shift VO31 2 VO3+ 2
2 30 2 29 VO6VO6+
VO5+
Level shift
Level shift
VO5-
3
28
VO2+
4
27
VO2-
VO4+
Level shift
Level shift
VO4-
5
26
VO1+
6
25 Power system ground
VO1-
P-GND1
7 Power system ground
+ -
24
P-GND2
S-GND
8
Signal system ground
23 Power system VCC 3.3 VREG Signal system VCC 22
P-VCC (IN)
VREF
9
Reference voltage
3.3VREG(OUT)
IN- MUTE
10
MUTE
RESET O- RESET 11 22 k VIN4 12 22 k +
The reset output goes low when VREF is under 0.7 V.
21 22 k 22 k + 22 k 200 + 19 20
S-VCC (IN)
VIN1
VIN2
22 k VIN5 13 22 k 3/8 + 3/8 VIN3+ 14 Overheat protection circuit (Thermal shutdown) 5VREG 16 5VREG 3/8 17 VIN618 VIN6+
3/8 VIN315
No.7740-5/8
LA6568
Sample Application Circuit
1 LOADING MOTOR M 2
V O 3-
V O 6+
30 M CHANGER MOTOR
V O 3+
V O 6-
29
3 FOCUS COIL 4
V O 5-
V O 2+
28 M SPINDLE MOTOR
V O 5+
V O 2-
27
5 TRACKING COIL 6
V O 4-
V O 1+
26 M SLED MOTOR
V O 4+
V O 1-
25
7
P-GND1
P-GND2
24
8
S-GND
P-V CC
23
V CC
9 V CC 10
VREF
3.3VREG
22
3.3 V
IN-MUTE
S-V CC
21
MUTE RESET CHANGER REV FW D LOADING FW D
11
O-RESET
V IN 1
20
SLED MOTOR
12
V IN 4
V IN 2
19
SPINDLE MOTOR
13
V IN 5
V IN 6+
18 FOCUS COIL TRACKING COIL
14
V IN 3+
V IN 6-
17
REV
15
V IN 3-
5VREG
16 VREF
No.7740-6/8
LA6568
Relationship Between Muting and the P-VCC Power Supply
CH1(BTL AMP) CH2(BTL AMP) MUTE CH6(LOADING) CH4(BTL AMP) CH5(BTL AMP) CH3(LOADING) P-VCC
Note:
Connect both S-VCC and P-VCC to the power supply system externally. Connect both S-GND and P-GND to the ground system externally.
Muting Functions vs. Outputs and 3.3 V Regulator Operating States
CH1, 2, 4, 5 (BTL-AMP) When IN-MUTE is low When the thermal shutdown circuit has operated When VREF has fallen below 0.7 V Note: OFF OFF OFF OFF CH3, 6 (LOADING) 3.3VREG 5VREG OFF OFF
A dash ( ) indicates no operation for functions to which muting, thermal shutdown, or VREF fall protection apply. The IN-MUTE pin applies to the BTL amplifiers (channels 1, 2, 4, and 5) and the 3.3 V and 5 V regulators. The VREF fall protection function only applies to the BTL amplifiers.
The muting function applies to the BTL amplifiers (channels 1, 2, 4, and 5) and the 3.3 V and 5 V regulators.
IN-MUTE state H L BTL-AMP (CH1, 2, 4, 5) ON OFF 3.3VREG 5 VREG
The VREF fall protection function only applies to the BTL amplifiers.
VREF state VREF VREF 0.7 (V) 0.7 (V) BTL-AMP (CH1, 2, 4, 5) ON OFF
Loading Block
VIN (FWD) L H VIN (REV) L H L H Loading output Brake Reverse (VO Forward (VO (VO 1.5 1.5 1.5 (FWD REV) 1 FWD) 1 REV))
Note 1: FWD: VIN6 , VIN3 , REV: VIN6 , VIN3 Note: In brake mode, the + and - output voltages both go to VCC/2. The "L" voltage level is any level less than VF (approximately 0.6 V). The loading circuit (channels 3 and 6) gain is 3.5 dB (typical).
No.7740-7/8
LA6568
Reset Function
IN-MUTE L H VREF VREF VREF VREF VREF 0.7 V 0.7 V 0.7 V 0.7 V O-RESET L L L H
Note: The O-RESET output is an open-collector output (NPN). The O-RESET low state is when the NPN transistor output is on, and the O-RESET high state is when the NPN transistor output is off.
Relationship Between the BTL Amplifier Inputs and Outputs
VIN1 VIN2 VIN4 VIN5
VO1+ VO2+ VO4+ VO5+ VO1VO2VO4VO5-
Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, of otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or This catalog provides information as of August, 2004. Specifications and information herein are subject to change without notice.
No.7740-8/8

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