3-Pin/4-Pin, Low-Power uP Reset Circuits with Manual Reset
The MAX6800/MAX6801/MAX6802 microprocessor (µP) supervisory circuits monitor the power supplies in 2.85V to 5.0V µP and digital systems. They increase circuit reliability and reduce cost by eliminating external components and adjustments. These devices perform a single function—they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for a preset timeout period after VCC has risen above the reset threshold. The only difference among the three devices is their output. The MAX6801 (push/pull) and MAX6802 (open-drain) have an active-low RESET output, while the MAX6800 (push/pull) has an active-high RESET output. The MAX6800/MAX6801 are guaranteed to be in the correct state for VCC down to 0.7V. The MAX6802 is guaranteed to be in the correct state for VCC down to 1.0V. The reset comparator in these ICs is designed to ignore fast transients on VCC. Reset thresholds are factory-trimmable between 2.63V and 4.80V, in approximately 100mV increments. These devices are available with a 1ms (min), 20ms (min), or 100ms (min) reset pulse width. Ideal for space-critical applications, the MAX6800/MAX6801/MAX6802 come packaged in a 3-pin SOT23. For a lower threshold voltage version, see the MAX6332/MAX6333/MAX6334.
title | Download file |
---|---|
MAX6800-MAX6802 Data Sheet | MAX6800-MAX6802.pdf |
Part Number | Reset Thresh. (V) | Reset Out | tRESET | Watchdog Feature | ICC (µA) | Package/Pins | Budgetary Price |
---|---|---|---|---|---|---|---|
min | max | See Notes | |||||
MAX6800 | 2.5 to 3.3 3.3 to 5.5 | Active High Push-Pull | 1ms to 15ms 15ms to 85ms 85ms to 300ms | No Watchdog | 12 | SOT/3 | $1.51 @1k |
MAX6801 | Active Low Push-Pull | SOT/3 | $1.22 @1k | ||||
MAX6802 | Active Low Open Drain | SOT/3 | $1.51 @1k | ||||
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
---|---|---|---|---|---|
MAX6802UR26D1+T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
MAX6802UR26D1-T | No Longer Available | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR26D2+T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
MAX6802UR26D2-T | No Longer Available | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR26D3+ | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
MAX6802UR26D3+T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
MAX6802UR26D3-T | No Longer Available | MAX6802UR26D3+T | SOT,;3 pin;8 mm² | -40°C to +125°C | No |
MAX6802UR27D1+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR27D1-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR27D2+T | Active | SOT; | -40°C to +125°C | See data sheet | |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
MAX6802UR27D2-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR27D3+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR27D3-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR28D1+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR28D1-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR28D2+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR28D2-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR28D3+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR28D3-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR29D1+T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
MAX6802UR29D1-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR29D1/V+T | No Longer Available | MAX16083AXR32B/V+T | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free |
MAX6802UR29D2+ | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
MAX6802UR29D2+T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
MAX6802UR29D2-T | No Longer Available | MAX6802UR29D2+T | SOT,;3 pin;8 mm² | -40°C to +125°C | No |
MAX6802UR29D3+ | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
MAX6802UR29D3+T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
MAX6802UR29D3-T | No Longer Available | MAX6802UR29D3+T | SOT,;3 pin;8 mm² | -40°C to +125°C | No |
MAX6802UR30D1+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR30D1-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
MAX6802UR30D2+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR30D2-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR30D3+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR30D3-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR31D1+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR31D1-T | No Longer Available | MAX6802UR31D1+T | SOT,;3 pin;8 mm² | -40°C to +125°C | No |
MAX6802UR31D2+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR31D2-T | No Longer Available | MAX6802UR31D2+T | SOT,;3 pin;8 mm² | -40°C to +125°C | No |
MAX6802UR31D3+ | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
MAX6802UR31D3+T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | Lead Free | |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
MAX6802UR31D3-T | No Longer Available | MAX6802UR31D3+T | SOT,;3 pin;8 mm² | -40°C to +125°C | No |
MAX6802UR32D1+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR32D1-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR32D2+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR32D2-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR32D3+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR32D3-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR33D1+T | Active | SOT; | -40°C to +125°C | See data sheet | |
MAX6802UR33D1-T | Active | SOT,;3 pin;8 mm² | -40°C to +125°C | No | |
MAX6802UR33D2+T | Active | SOT; | -40°C to +125°C | See data sheet |