NCP300 ONSEMI [ON Semiconductor], NCP300 Datasheet - Page 18

• Manufacturer Part Number: NCP300
• Description: Voltage Detector Series
• Manufacturer: ONSEMI [ON Semiconductor]

R
sense
C
LSN27T1
LSN27T1
LSN09T1
NCP301
NCP301
NCP301
V
2
3
supply
Load
Input
GND
HSN27T1
LSN27T1
LSN27T1
NCP301
NCP301
NCP300
5.0 V
2
3
100 k
Input
GND
1
Reset Output
Figure 28. Microcontroller System Load Sensing
Reset Output
1
50 k
Figure 27. Simple Clock Oscillator
Microcontroller
NCP300, NCP301
82 k
http://onsemi.com
V
DD
GND
18
C (mF)
0.01
This circuit monitors the current at the load. As
current flows through the load, a voltage drop with
respect to ground appears across R
V
If:
I
I
0.1
1.0
Load
Load
sense
t V
w (V
= I
DET −
load
DET −
f
* R
Test Data
OSC
/R
+V
2590
sense.
490
sense
52
HYS
(kHz)
)/R
The following conditions apply:
sense
I
Q
21.77
21.97
22.07
Then:
Reset Output = 0 V
Reset Output = V
sense
(mA)
where
DD