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PDF LA5657H Data sheet ( Hoja de datos )
| Número de pieza | LA5657H | |
| Descripción | System Power Supply IC for Car AV Systems | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENN7596
www.DataSheet4U.com
Monolithic Digital IC
LA5657H
System Power Supply IC for Car AV Systems
Overview
The LA5657H provides 10 V/2.2 A and 5 V/1.4 A
external pnp transistor based low-saturation regulators
with standby functions, as well as 3.3 V, 5 V, and 8 V
constant voltage, open collector, and VCC linked (VCC -
1 V) outputs that can be controlled from serial data (CCB).
It also includes three reset detection circuits for the VDD,
ACC, and battery systems. The LA5657H is an optimal
power supply IC for car audio systems and similar
products.
Features
• Built-in 10 V and 5 V regulators (external pnp transistor
required) with standby (on/off) functions
• Extensive set of output systems: two 8 V systems, single
5 V, 3.25 V, and 5 to 9.7 V (set with an external resistor)
systems, four open-collector output systems, and two
VCC linked systems.
• Three reset circuits: ACC, VDD (with delay circuit), and
BATT
• Full complement of protection circuits
— Overcurrent protection circuits for all output systems
except the open collector and reset circuits
— Thermal protection circuits for all outputs except the
reset circuits
Package Dimensions
unit: mm
3233A-HSOP28H
[LA5657H]
15.2
(6.2)
28 15
1
(0.8)
0.8
2.0
14
0.3 0.25
2.7
SANYO: HSOP28H (375 mil)
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Topr
Tstg
Conditions
Ta ≤ 25°C, independent IC
Ta ≤ 25°C, mounted on a 76.1 × 114.3 × 1.6 mm glass
epoxy printed circuit board
Ratings
24
0.82
2.0
–30 to +85
–55 to +150
Unit
V
W
W
°C
°C
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
52804TN (OT) No. 7596-1/8
1 page  
LA5657H
2.5
Mounted on a
circuit board
2.0
Pd max — Ta
2.00
1.5
1.0
Independent IC 0.82
0.5
1.04
0.43
0
–30 0
30 60 90 120
Ambient temperature, Ta — °C ILA06471
Pin Assignment and Test Circuit
www.DataSheet4U.com
CCB serial signal
generator
1 CN
2 CAP MR
3 P3(M2F)
4 P2(LCD)
5 P1(ILL)
6 DI
7 CE
GND
VSTB
8 STBY
9 CL
10 RESET
11 BATRO
12 ACCRO
VACCIN
13 ACC IN
VBATIN
14 BAT IN
LCDV 28
+
C03
TAPE8V 27
+
C04
DSP5V 26
+
C06
RD8V 25
+
C05
COM10V 24
+
C01
CONT1 23
2SB921
DSP3.25V 22
+
C07
GND
Top view
COM5V 21
+
C02
CONT2 20
2SB921
AMP+B 19
VCC 18
+
CIN
ANT+B 17
VVDDIN
VDD IN 16
CDLY 15
VCC
No. 7596-5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LA5657H.PDF ] | |
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