NCP304 ON, NCP304 Datasheet - Page 16

• Manufacturer Part Number: NCP304
• Description: Voltage Detector Series
• Manufacturer: ON

2.85 V
2.70 V
NCP304
Series
5.0 V
3.3 V
2
3
Figure 28. Dual Power Supply Undervoltage Supervision
Input
GN
D
APPLICATION CIRCUIT INFORMATION
Figure 26. Microprocessor Reset Circuit
LSQ27T1
NCP304
1
Reset Output
2
3
Figure 27. Battery Charge Indicator
Input
GN
D
NCP304, NCP305
LSQ45T1
LSQ30T1
NCP305
NCP305
http://onsemi.com
2
3
2
3
1
Reset Output
Input
GN
D
Input
GN
D
*
Required for
16
NCP305
Reset Output
Reset Output
1
1
*
Reset
V
supply
V
V
in
in
Microprocessor
< 2.7 ON
> 2.835 ON
Low state output if either
power supply is below the
respective undervoltage de-
tector threshold but greater
than 1.0 V.
GND
V
DD
To Additional Circuitry
V
DD