Overview
The MAX6369KA+TG05 is a pin-selectable watchdog timer produced by Analog Devices Inc./Maxim Integrated. This component is designed to supervise microprocessor (μP) activity and signal when a system is operating improperly. It operates within a voltage range of +2.5V to +5.5V and is packaged in a miniature 8-pin SOT23 package, making it suitable for a variety of embedded and industrial applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Operating Voltage Range | VCC | 2.5 | 5.5 | V | ||
| Supply Current | ICC | No load, TA = -40°C to +85°C | 8 | 20 | µA | |
| No load, TA = -40°C to +125°C | 10 | 22 | µA | |||
| Input High Voltage | VIH | WDI, SET0, SET1, SET2 | 0.8 x VCC | V | ||
| Input Low Voltage | VIL | WDI, SET0, SET1, SET2, VCC ≥ 3.3V, TA = -40°C to +85°C | 0.8 | V | ||
| WDI, SET0, SET1, SET2, VCC ≥ 3.3V, TA = -40°C to +125°C | 0.6 | V | ||||
| WDI, SET0, SET1, SET2, VCC ≥ 2.5V, TA = -40°C to +85°C | 0.6 | V | ||||
| WDI, SET0, SET1, SET2, VCC ≥ 2.5V, TA = -40°C to +125°C | 0.4 | V | ||||
| Watchdog Timeout Period | tWD | VSET2 = 0V, VSET1 = 0V, VSET0 = 0V | 1 | 3 | ms | |
| VSET2 = 0V, VSET1 = 0V, VSET0 = VCC | 10 | 30 | ms | |||
| VSET2 = 0V, VSET1 = VCC, VSET0 = 0V | 30 | 90 | ms |
Key Features
- Precision Watchdog Timer for Critical μP Applications
- Pin-Selectable Watchdog Timeout Periods
- Pin-Selectable Watchdog Startup Delay Periods
- Ability to Change Watchdog Timing Characteristics Without Power Cycling
- Open-Drain or Push-Pull Pulsed Active-Low Watchdog Output
- Watchdog Timer Disable Feature
- +2.5V to +5.5V Operating Voltage Range
- 8μA Low Supply Current
- No External Components Required
- Miniature 8-Pin SOT23 Package
- AEC-Q100 Qualified (for specific models)
Applications
- Embedded Control Systems
- Industrial Controllers
- Automotive Systems
- Medical Devices
- Aerospace and Defense Systems
Q & A
- What is the operating voltage range of the MAX6369KA+TG05?
The operating voltage range is +2.5V to +5.5V. - What is the typical supply current of the MAX6369KA+TG05?
The typical supply current is 8µA at no load and TA = -40°C to +85°C. - What types of watchdog output options are available?
The watchdog output can be either open-drain or push-pull. - Can the watchdog timing characteristics be changed without power cycling?
Yes, the watchdog timing characteristics can be changed without power cycling. - What is the package type of the MAX6369KA+TG05?
The component is packaged in a miniature 8-pin SOT23 package. - Is the MAX6369KA+TG05 AEC-Q100 qualified?
Yes, specific models like MAX6369KA/V+ and MAX6374KA/V+ are AEC-Q100 qualified. - What are the typical startup delay periods for the MAX6369KA+TG05?
The startup delay periods range from 1ms to 180s depending on the pin settings. - What are some common applications of the MAX6369KA+TG05?
Common applications include embedded control systems, industrial controllers, automotive systems, medical devices, and aerospace and defense systems. - Does the MAX6369KA+TG05 require external components?
No, the MAX6369KA+TG05 does not require external components. - What is the temperature range for the MAX6369KA+TG05?
The operating temperature range is -40°C to +125°C.
