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Ordering number: EN 5231
Monolithic Linear IC
LA6537M 4-channel Bridge Driver for CD and CD-ROMs
Overview
The LA6537M is a 4-channel bridge (BTL) driver which was developed for compact discs and CD-ROMs.
Package Dimensions
unit : mm
3073A-MFP30SLF
[LA6537M]
Features and Functions
. 4-channel bridge (BTL) power amplifier. . I max 700 mA. . With mute circuit (Amp 3, Amp 4).
O
SANYO : MFP30SLF Pd max -- Ta Allowable power dissipation, Pd max -- W
PCB (glass epoxy resin) Steel substrate (t = 1 mm) reference value Cu foil
Thickness 1.5 mm Mounted on PCB (glass epoxy)
Independent IC
Ambient temperature, Ta -- C
Specifications
Maximum Ratings at Ta = 25 C
Parameter Maximum supply voltage Maximum input voltage Mute pin voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max VINB VM Pd max Topr Tstg * Mounted on PCB shown below Conditions Ratings 14 13 13 0.9 -20 to +75 -55 to +150 Unit V V V W C C
* PCB (20 x 30 x 1.5 mm glass epoxy resin)
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
92995HA(II) No.5231-1/4
LA6537M
Operating Conditions at Ta = 25 C
Parameter Recommended supply voltage Symbol VCC Conditions Ratings 4 to 13 Unit V
Electrical Characteristics at Ta = 25 C, VCC = 7.5 V
Parameter No-load current drain Output offset voltage Input bias current Buffer input voltage range Input voltage range Output source voltage Output sink voltage Closed-circuit voltage gain Slew rate Mute on voltage Mute pin inflow current Symbol ICC1 ICC2 VOF1 VOF2 IB VBIN VIN VO1 VO2 VG SR VM IM Note Note Note Note Conditions 1 2 3, amplifiers 1 -- 2, 7 -- 8 3, ampifiers 3 -- 4, 5 -- 6 min 20 -50 -50 1.5 1.0 5.0 max 60 60 +50 +50 100 500 VCC -1.5 VCC -1.5 5.6 1.8 2.4 12 0.15 2 60 typ 40 26 Unit mA mA mV mV nA V V V V dB V/s V A
Note 4, RL = 8.0 Note 5, RL = 8.0 Bridge amplifier Note 6 Note 6
Notes: 1. Mute off and buffer in assume 1/2 VCC V. 2. Mute off and buffer in assume 0.5 V. 3. Represents the interoutput difference. 4. Voltage relative to ground (source) when an 8 load is connected between bridge amplifier outputs. 5. Voltage relative to ground (sink) when an 8 load is connected between bridge amplifier outputs. 6. Muting is activated when high, and the amplifier outputs 3 and 4 are off.
Test Method
SW No. 1 Item ICC1 ICC2 VOF1,2 IB VO1 VO2 VM IM VG a a b b b b b b b ON ON ON OFF OFF OFF ON ON ON ON ON ON OFF ON OFF ON ON ON OFF OFF OFF ON OFF OFF OFF OFF OFF OFF OFF OFF OFF ON OFF OFF OFF OFF b b b a b a b b b b b b a a b b b b OFF OFF OFF ON OFF OFF OFF OFF OFF ON ON ON OFF OFF ON ON ON ON OFF OFF OFF OFF OFF ON OFF OFF OFF OFF OFF OFF OFF ON ON OFF OFF OFF b a b b b b b b b OFF OFF OFF OFF OFF OFF OFF OFF ON OFF OFF OFF OFF OFF OFF OFF OFF ON 2 3 4 5 6 7 8 9 10 11 12 13 14
1. 2. 3. 4. 5. 6. 7.
For ICC1 and 2, measure the inflow current on the VCC pin. For VOF1 and 2, measure the voltage between pins 3 and 4 (amplifiers 1 and 2), pins 27 and 28 (amplifiers 7 and 8), pins 12 and 13 (amplifiers 3 and 4), and pins 18 and 19 (amplifiers 5 and 6). For IB, measure the voltage across the 100 k resistor (IB = V/100 k). For VO1 and 2, measure each output voltage at input voltages 1.75 V and 5.75 V, respectively. VM is the mute pin (pin 7) voltage when the output goes off. IM is the mute pin (pin 7) inflow current when the output goes off. For VG, measure the voltage between pins 3 and 4 (amplifiers 1 and 2), pins 27 and 28 (amplifiers 7 and 8), pins 12 and 13 (amplifiers 3 and 4), and pins 18 and 19 (amplifiers 5 and 6) at f = 1 kHz, and use the following formula: VG = 20 log VO/V1 dB.
No.5231-2/4
LA6537M
Test Circuit
Block Diagram and Pin Assignment
Top view Do not use the NC pin. No.5231-3/4
LA6537M
Sample Application Circuit
Load
Load
Load
Load
Top view
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: 1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: 2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. 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 other rights of third parties. This catalog provides information as of September, 1995. Specifications and information herein are subject to change without notice.
No.5231-4/4

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