(Hong Kong)
Product Summary
The MC3423P1 is an overvoltage protection circuit (OVP) which protects sensitive electronic circuitry from overvoltage transients or regulator failures when used in conjunction with an external “crowbar” SCR. The MC3423P1 senses the overvoltage condition and quickly “crowbars” or short circuits the supply, forcing the supply into current limiting or opening the fuse or circuit breaker. The protection voltage threshold is adjustable and the MC3423P1 can be programmed for minimum duration of overvoltage condition before tripping, thus supplying noise immunity. The MC3423P1 is essentially a “two terminal” system, therefore it can be used with either positive or negative supplies.
Parametrics
MC3423P1 absolute maximum ratings: (1)Differential Power Supply Voltage VCC–VEE: 40 Vdc; (2)Sense Voltage VSense1: 6.5 Vdc; (3)Sense Voltage VSense2: 6.5 Vdc; (4)Remote Activation Input Voltage Vact: 7.0 Vdc; (5)Output Current IO: 300 mA; (6)Operating Ambient Temperature Range TA: 0 to +70 ℃; (7)Operating Junction Temperature TJ: 125 ℃; (8)Storage Temperature Range Tstg: –65 to +150 ℃.
Features
MC3423P1 features: (1)Supply Voltage Range VCC–VEE: 4.5 to 40 Vdc; (2)Output Voltage (IO = 100 mA) VO: VCC–2.2 to VCC–1.8 Vdc; (3)Indicator Output Voltage (IO(Ind) = 1.6 mA) VOL(Ind): 0.4 Vdc; (4)Sense Trip Voltage (TA = 25℃) VSense1, VSense2: 2.45 to 2.75 Vdc; (5)Temperature Coefficient of VSense1 TCVS1: 0.06%/℃; (6)Remote Activation Input Current (VIH = 2.0 V, VCC – VEE = 5.0 V) IIH: 40μA; (7)Remote Activation Input Current (VIL = 0.8 V, VCC – VEE = 5.0 V) IIL: –180μA; (8)Source Current ISource: 0.1 to 0.3 mA; (9)Output Current Risetime (TA = 25℃) tr: 400 mA/μs; (10)Propagation Delay Time (TA = 25℃) tpd: 0.5 μs; (11)Supply Current ID: 10 mA.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
 |
 MC3423P1 |
ON Semiconductor |
Supervisory Circuits 6.5V OverVoltage |
Data Sheet |
Negotiable |
|
||||
|
MC3423P1G |
ON Semiconductor |
Supervisory Circuits 6.5V OverVoltage Crowbar Sensing |
Data Sheet |
Negotiable |
|
||||
