View LA6568_4359968.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Ordering number : ENN7740
LA6568
Overview
Monolithic Linear IC
Six-Channel Driver for Optical Disc Drives
The LA6568 is a six-channel driver for optical disc drives that includes built-in 3.3 V and 5 V regulators.
Functions
* 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 = 25C
Parameter Maximum supply voltage Maximum output current Maximum input voltage Mute pin voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max IO max VINB max VMUTE Pd max Topr Tstg Mounted on a board 1 Independent IC Each channel for Ch.1 to Ch.6 Conditions Ratings 14 0.7 13 13 2.00 1.20 -30 to +85 -55 to +150 Unit V A V V W C C
Note 1: Mounted on a board (76.1 x 114.3 x 1.66 mm) Material: glass epoxy
Recommended Operating Conditions at Ta = 25C
Parameter Supply voltage Symbol VCC Conditions Ratings 6 to 13 Unit V
Any and all SANYO Semiconductor 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 Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor 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 Semiconductor products described or contained herein.
N2206 / 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 resistor between VCC and RESET With a 10 k 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 = 3 mA, VCC = 6 to 12 V When IO = 1 to 3 mA 4.75 5 100 100 5.25 V mV mV VO-REG1 V-LIN1 V-LOAD1 IO = 100 mA When IO = 100 mA, VCC = 6 to 12 V When IO = 0 to 200 mA 3.15 -100 -100 3.3 3.45 +100 +100 V mV mV VOF VOR VOMF VOMR VOFF I-IN VIN+ = 2 V, VIN-=0 V VIN+ = 0 V, VIN- = 2 V VIN+ = 5 V, VIN- = 0 VIN+ = 0 V, VIN- = 5 V Potential difference between the outputs when braking is applied When VIN = 3.3 V -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
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
S-GND
100k 100k
IN-MUTE
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
x2 Level shift Level shift VO31 x2 VO3+ 2
x2 30 x2 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 Power system VCC 3.3 VREG Signal system VCC
23
P-VCC (IN)
VREF
9
Reference voltage
22
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 22 k VIN5 13 + x3/8 VIN3+ 14 x3/8 VIN315
x3/8 18 x3/8 17 VIN6VIN6+
Overheat protection circuit (Thermal shutdown) 5VREG 16 5VREG
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
11 MUTE RESET 12 CHANGER REV FW D LOADING FW D 13
O-RESET
V IN 1
20
SLED MOTOR
V IN 4
V IN 2
19
SPINDLE MOTOR
V IN 5
V IN 6+
18
14
V IN 3+
V IN 6-
17
FOCUS COIL
TRACKING COIL REV 15 V IN 35VREG 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 OFF OFF OFF CH3, 6 (LOADING) 3.3VREG 5VREG OFF OFF
-
OFF
-
-
Note: * 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 > 0.7 (V) VREF < 0.7 (V) BTL-AMP (CH1, 2, 4, 5) ON OFF
Loading Block
VIN+ (FWD) L VIN- (REV) L H H L H Loading output Brake Reverse (VO = -1.5 x REV) 1 Forward (VO = 1.5 x FWD) 1 (VO = 1.5 x (FWD - 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 VREF VREF < 0.7 V VREF > 0.7 V VREF < 0.7 V VREF > 0.7 V O-RESET L L L H
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 Semiconductor 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 Semiconductor 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 Semiconductor 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, or otherwise, without the prior written permission of SANYO Semiconductor 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 Semiconductor 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 Semiconductor 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 other rights of third parties.
This catalog provides information as of August, 2004. Specifications and information herein are subject to change without notice.
No.7740-8/8

▲Up To Search▲

Price & Availability of LA6568

	To Download LA6568 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .