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RE46C109 датащи(PDF) 5 Page - Microchip Technology

номер детали RE46C109
подробное описание детали  Voltage Regulator, Voltage Converter and Piezoelectric Horn Driver
PDF  9 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

RE46C109 датащи(HTML) 5 Page - Microchip Technology

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RE46C109
Voltage Regulator, Voltage Converter and
R&E International
Piezoelectric Horn Driver
A Subsidiary of Microchip Technology Inc.
Product Specification
© 2009 Microchip Technology Inc.
DS22168A-page 5
PIN DESCRIPTIONS
VDD
(Pin 1, Input) - Connect to the positive
terminal of the supply voltage for the voltage
regulator, charge pump voltage converter
and bi-directional Interconnect block.
IO1
(Pin 2, Input/Output) - This bi-directional
pin provides an interface to additional
RE46C109 IO1 pins. This serves as a
communication link between separate
modules.
IODIR
(Pin 3, Input) - This input provides
control for the bi-directional pins IO1 and
IO2.
IO2
(Pin 4, Input/Output) - This bi-directional
pin provides an interface to a TTL/CMOS I/O
of a uP or ASIC. Refer to the interconnect
logic truth table.
LBST
(Pin 5, Input) - This input provides an
enable or strobe control for the analog low
battery detection function.
PG
(Pin 6, Output) - This open drain NMOS
output provides a status indication of when
the VREG output is above or below a
specified voltage level.
HRNEN
(Pin 7, Input) - This input provides
activation control for the charge pump boost
regulator and horn driver outputs.
VSS
(Pin 8, Input) - This power pin is
connected to the negative terminal of the
supply voltage.
FEEDBACK
(Pin9, Input) - Horn driver
input.
HORNS
(Pin10, Output) - Horn output driver
which provides VPOS to VSS output voltage
swing for the piezoelectric horn.
HORNB
(Pin11, Output) - Horn output driver
which provides VPOS to VSS output voltage
swing for the piezoelectric horn.
LBAT
(Pin12, Output) - Analog output
voltage that is proportional to the VDD
supply and functions as a low battery
detection output.
VREG
(Pin13, Output) - Voltage regulator
output, requires an external capacitor.
VCAP-
(Pin14, I/O) - Negative terminal for
the external charge pump boost (fly)
capacitor.
VCAP+
(Pin 15, I/O) - Positive terminal for
the external charge pump boost (fly)
capacitor.
VPOS
(Pin 16, Output) - This output pin
requires an external filter capacitor which
supplies voltage for the horn driver outputs.



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