Microchip Technology ADM00344 Fiche De Données
RE46C190
DEMO BOARD
USER’S GUIDE
© 2011 Microchip Technology Inc.
DS51970A-page 11
Chapter 2. Installation and Operation
2.1
INTRODUCTION
The RE46C190 Demo Board allows full evaluation of the RE46C190 functionality,
including programmability. The demo board consists of two parts:
including programmability. The demo board consists of two parts:
• RE46C190 application circuit (see Figure 2-1)
• A smoke-chamber emulation circuit (see Figure 2.2).
The smoke-chamber emulation circuit can be disconnected from the RE46C190
application circuit so the actual photo smoke chamber components can be evaluated
in the RE46C190 application circuit. The board can be operated from a CR123A
battery, or be powered from a 3V power supply.
application circuit so the actual photo smoke chamber components can be evaluated
in the RE46C190 application circuit. The board can be operated from a CR123A
battery, or be powered from a 3V power supply.
FIGURE 2-1:
RE46C190 Application Circuit.
V
SS
IRED
V
V
DD
TEST
TEST2
TEST2
IRP
IRN
RLED
IRN
RLED
LX
V
BST
HS
HB
IO
IRCAP
FEED
GLED
VBATc
IRCAPc
IREDc
IREDc
IRPc
IRNc
GND
3V
C1
1 nF
C2
4.7 μF
C3
1 μF
C4
100 μF
C5
33 μF
C6
10 μF
RED
D1
GREEN
D2
D3
D4
HORN
IC1
RE46C190
L1
10 μH
V
DD
GND
IO
V
BST
LX
HB
HS
TEST
FEED
GLED
IRCAP
RLED
TEST2
RLEDR
IRED
GLEDR
V
BAT
GND2
R1
33
0
R2
100
R3
330
330
R4
100
R5
1.
5M
R6
22
0K
R7
10k
R8
100
0
R15
0
R17
0
R18
0
R19
0
R20
Rv2
2K
POT
SW1
SW2
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
16
15
14
13
12
11
10
15
14
13
12
11
10
9