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Sanyo Semicon Device - System Power Supply IC for Car AV Systems

Numéro de référence LA5657H
Description System Power Supply IC for Car AV Systems
Fabricant Sanyo Semicon Device 
Logo Sanyo Semicon Device 





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LA5657H fiche technique
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

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