tca280b Hendon Semiconductors, tca280b Datasheet - Page 10

• Manufacturer Part Number: tca280b
• Description: General Purpose Triggering Circuit
• Manufacturer: Hendon Semiconductors

Integrated Electronic Solutions, Hendon, South Australia
2002 Nov 08
General purpose triggering circuit
Note: In certain applications the time proportional controller requires a value of smoothing capacitor (C1) three
times higher; typical performance.
smoothing capacitor C1 as a function of average supply current I
Fig.5 Voltage dropping resistor Rd, dissipation P
P Rd
(W)
Rd
(KΩ)
C1
(x 10µF)
diode D. I
1000
100
10
1
1
2
RX2(AV)
3
4
includes the supply of any external (peripheral) circuit supplied from V
5
6
7
8
9
Rd
10
11
12
Rd
13
C1 min
9
in this resistor, and recommended minimum value of
14
15
P in R d
Rd min
I RX2(AV) (mA)
16
RX2(AV)
17
18
, for the supply arrangement with series
V s
16
13
RX2
V EE
R d
D
TCA280B
11
V CC
Fig-5-graph
CC
TCA280B
C 1
.
Data Sheet