HA17339AF RENESAS [Renesas Technology Corp], HA17339AF Datasheet - Page 12

• Manufacturer Part Number: HA17339AF
• Description: Quadruple Comparators
• Manufacturer: RENESAS [Renesas Technology Corp]

HA17339A Series
6. Inverting Comparator (with Hysteresis)
7. Zero-Cross Detector (Single-Voltage Power Supply)
Rev.3.00 Mar 10, 2006 page 12 of 14
In this circuit, the output Vout inverts from high to low when +V
inverts from low to high when +V
Vout = 15V, this circuit will have a 5V hysteresis. Figure 10 shows the I/O characteristics for the circuit in figure 9.
In this circuit, the noninverting input will essentially beheld at the potential determined by dividing V
and 10k resistors. When V
the high level. (See figure 11.)
Figure 10 Inverting Comparator I/O Transfer Characteristics
IN
Vin
is 0V or higher, the output will be low, and when V
IN
+Vin
V
20
16
12
CC
< V
8
4
0
1S2076
Figure 9 Inverting Comparator
0
Figure 11 Zero-Cross Detector
5.1k
CC
/3. With the circuit constants shown in figure 9, assuming V
1M
5.1k
Input Voltage V
100k
5
1M
HA17339A
+
V
CC
100k
10k
1M
HA17339A
+
IN
V
10
20M
CC
V
(V)
CC
IN
V
CC
V
> (V
CC
3k
= 15 V
Vout
CC
5.1k
+ Vout)/3. Similarly, the output Vout
Vout
15
IN
is negative, Vout will invert to
CC
CC
with 100k
= 15V and