RE46C109 View Datasheet(PDF) - R and E International, Inc.
Part Name
Description
Manufacturer
RE46C109
R and E International, Inc.
RE46C109 Datasheet PDF : 8 Pages
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RE46C109
Voltage Regulator, Voltage Converter and Piezoelectric Horn Driver
Product Specification
R&E International
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.
Telephone 610.992.0727
Facsimile 610.992.0734
E-mail: rande@randeint.com
Page 5 of 8
DS-RE46C109-011207
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
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