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1. Describe
The MAX16000–MAX16007 are low-voltage, quad/hexa/octa voltage μP supervisors in small TQFN and TSSOP packages. These devices provide supervisory functions for complex multi-voltage systems. The MAX16006FTG+ provides reset outputs that are active as long as any monitored voltage falls below their respective thresholds or as long as the manual reset input is active. The reset output remains active for the reset timeout period after all voltages are above their respective thresholds and the manual reset input is inactive. The minimum reset timeout is internally set to 140ms or can be adjusted with an external capacitor. All open-drain outputs have internal 30µA pull-up resistors, eliminating the need for external pull-up resistors. However, each output can be driven by external voltages up to 5.5V. Other available features include a manual reset input, a tolerance pin to select 5% or 10% input threshold, and a margin enable function to de-assert the output during margin testing. The MAX16006FTG+ provides a watchdog timer that asserts RESET or a separate watchdog output (MAX16005) when the watchdog timeout (1.6s typ) is exceeded. The watchdog timer can be disabled by keeping the input open. These devices are available in 12-, 16-, 20- and 24-pin TQFN and 16-pin TSSOP packages. These are fully specified over the -40°C to +125°C range.
2. Features
1. Fixed threshold 5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V, 1.2V and 0.9V systems
2. Adjustable thresholds monitor voltages down to 0.4V
3. Open-drain output with internal pull-up reduces external component count
4. Fixed 140 ms (minutes) or capacitor adjustable reset timeout
5. Manual reset, margin enable and tolerance selection inputs
6. Watchdog timer
- 1.6 second (typ) timeout
- 54s startup delay after reset (except MAX16005)
7. Independent watchdog output (MAX16005)
8. RESET output indicates that all voltages are present
9. Independent voltage monitor
10. Guaranteed correct logic state down to VCC = 1V
11. Small (4mm x 4mm) TQFN package
12. TSSOP (5mm x 4.4mm) package (MAX16005)
13. Compliant with AEC-Q100
3. Application
1. Warehousing equipment
2. Server
3. Network/Telecom Equipment
4. Multi-voltage ASIC
4. Pin configuration
5. Application Information
Brown-out Detection Circuitry The open-drain outputs of the MAX16000–MAX16007 can be configured to detect a brown-out condition. These devices can also be used in applications such as system monitoring, multi-voltage level detection, and VCC bar graph monitoring.
