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Part Number: CAT803
Description: The CAT803, CAT809, and CAT810 are supervisory circuits that monitor power supplies in digital systems...
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CAT803
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DataSheet
General Description
CAT803 General Description
The CAT803, CAT809, and CAT810 are supervisory circuits that monitor power supplies in digital systems. The CAT803, CAT809, and CAT810 are direct replacements for the MAX803, MAX809 and MAX810 in applications operating over the industrial temperature range.
These devices generate a reset signal, which is asserted while the power supply voltage is below a preset threshold level and for at least 140 ms after the power supply level has risen above that level. The underlying floating gate technology, AE2(TM) used by Catalyst Semiconductor, makes it possible to offer any custom reset threshold value. Seven industry standard threshold levels are offered to support +5.0V, +3.3V, +3.0V and +2.5V systems.
The CAT803 has an open-drain RESET output (active LOW). The CAT803 requires a pull-up resistor on the reset output.
The CAT809 features a push-pull RESET output (active LOW) and the CAT810 features a push-pull RESET output (active HIGH).
Fast transients on the power supply are ignored and the output is guaranteed to be in the correct state at Vcc levels as low as 1.0V.
The CAT803, CAT809, and CAT810 are available in both the compact 3-pin SOT-23 and SC70 packages.
CAT803 Maximum Ratings
| Any pin with respect to ground |
-0.3V to +6.0V |
| Input Current, VCC |
20mA |
| Output Current, RESET,RESET |
20mA |
| Rate of Rise, VCC |
100V/s |
| Continuous Power Dissipation | |
| Derate 2.2mW/ºC above 70ºC (SC70) |
1 75 mW |
| Derate 4mW/ºC above 70ºC (SOT23) |
320 mW |
| Operating Temperature Range |
-40ºC to +85ºC |
| Storage Temperature Range |
-65ºC to +105ºC |
| Lead Soldering Temperature (10 sec) |
300ºC |
CAT803 Features
Precision monitoring of
+5.0V (-5%, -10%, -20%),
+3.3V (-5%, -10%),
+3.0V (-10%) and
+2.5V (-5%) power supplies
Offered in three output configurations:
- CAT803: Open-Drain Active LOW reset
- CAT809: Push-Pull Active LOW reset
- CAT810: Push-Pull Active HIGH reset
Direct replacements for the MAX803, MAX809 and MAX810 in applications operating over the industrial temperature range
Reset valid down to VCC = 1.0V
6A power supply current
Power supply transient immunity
Industrial temperature range: -40ºC to +85ºC
Available in RoHS-compliant SOT-23 and SC70 packages
+5.0V (-5%, -10%, -20%),
+3.3V (-5%, -10%),
+3.0V (-10%) and
+2.5V (-5%) power supplies
Offered in three output configurations:
- CAT803: Open-Drain Active LOW reset
- CAT809: Push-Pull Active LOW reset
- CAT810: Push-Pull Active HIGH reset
Direct replacements for the MAX803, MAX809 and MAX810 in applications operating over the industrial temperature range
Reset valid down to VCC = 1.0V
6A power supply current
Power supply transient immunity
Industrial temperature range: -40ºC to +85ºC
Available in RoHS-compliant SOT-23 and SC70 packages
CAT803 Typical Application
Computers
Servers
Laptops
Cable modems
Wireless communications
Embedded control systems
White goods
Power meters
Intelligent instruments
PDAs and handheld equipment
Servers
Laptops
Cable modems
Wireless communications
Embedded control systems
White goods
Power meters
Intelligent instruments
PDAs and handheld equipment
CAT803 Connection Diagram
CAT102
PDF/DataSheet Download
- Datasheet: CAT102
- File Size: 83422 KB
- Manufacturer: CATALYST [Catalyst Semiconductor]
- Click here to Download
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