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PDF LA6576 Data sheet ( Hoja de datos )

Número de pieza LA6576
Descripción 5-channel Driver
Fabricantes Sanyo 
Logotipo Sanyo Logotipo



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No Preview Available ! LA6576 Hoja de datos, Descripción, Manual

Ordering number : EN7742
LA6576 Monolithic Linear IC
5-channel Driver for Compact Disk
Applications
Overview
The LA6576 is a 5-channel driver for optical disc drives with a VREF switching function.
Features
Power amplifier 5-channel built-in. (Bridge-connection (BTL): 4-channel, H bridge: 1-channel)
IO max 1A.
Level shift circuit built-in (except H bridge).
Mute circuit (output ON/OFF) built-in.
(Operable with BTL AMP with CH1 to 4 and not operable for the H bridge of 5VREG)
5V regulator built-in (external PNP transistor).
With VREF changeover function (H: external, L: internal).
Overheat protection circuit (thermal shutdown) built-in.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Maximum supply voltage
Maximum output current
Maximum input voltage
VCC max
IO max
VINB
Each output for H bridge, channel 1 to 4
Mute pin voltage
VMUTE
Allowable operation
Pd max
Independent IC
Specified board*
Operating temperature
Topr
Storage temperature
Tstg
*1 A circuit board for mounting (76.1mm×114.3mm×1.6mm, glass epoxy resin)
Recommended Operating Conditions at Ta = 25°C
Parameter
Supply voltage
Symbol
VCC
Conditions
Ratings
14
1
13
13
0.8
2
-30 to +85
-55 to +150
Ratings
5.6 to 13
Unit
V
A
V
V
W
W
°C
°C
Unit
V
D2605 MS IM B8-5577 No.7742-1/8

1 page




LA6576 pdf
Pin Description
Pin name Pin name Pin no.
Input
(CH1 to 4)
Input
(H bridge)
VIN1+A
VIN1+B
VIN1-A
VIN1-B
VIN1
VIN2+
VIN2-
VIN2
VIN3+
VIN3-
VIN3
VIN4-
VIN4+
VIN4
FWD
REV
17
19
16
18
15
22
21
20
25
24
23
32
31
33
1
2
VCC
VIN*+
S-GND
FW D
Output
(BTL-AMP)
VO1+
VO1-
VO2+
VO2-
VO3+
VO3-
VO4+
VO4-
Output
(H bridge)
VLO-
VLO+
S-GND
12
13
10
11
8
9
6
7
4
5
VCC
LA6576
Equivalent circuit
VIN*-
VIN*
Pin explanation
Input pin (CH1 to 4)
Logic input pin.
By combining H and L of this pin, any
one of four modes
(forward/reversed/brake/idling) can be
selected.
REV
VCC*
VO*
VLO+
VLO-
RF
Output for channel 1 to 4.
H bridge (LOADING) output
MUTE
MUTE1
MUTE2
34
35
P-GND
VCC1
MUTE
S-GND
BTL AMP output, which turns ON/OFF
the output for CH1 – CH4,
MUTE: H Output ON
MUTE: L Output OFF
No.7742-5/8

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