Maxim Integrated 1 Voltage Supervisor Microprocessor Power Supply Supervisor 4-Pin SOT-223 DS1233DZ-15+

Maxim Integrated DS1233DZ-15+ is a highly reliable 1 voltage supervisor designed for microprocessor power supply monitoring. It features a 4-pin SOT-223 surface mount package optimized for compact and efficient PCB layouts. This microprocessor power supply supervisor uses a precision temperature-compensated reference and comparator circuit to monitor the power supply voltage status.

The device detects out-of-tolerance power conditions and generates an internal power-fail signal to force the reset to active state, ensuring stable microprocessor operation during voltage irregularities. When the supply voltage returns within tolerance, the reset is maintained active for approximately 350ms, allowing the processor and power supply to stabilize safely.

Operating over a wide temperature range from -40°C to 85°C, the DS1233DZ-15+ maintains robust performance in industrial and embedded system environments. It supports a minimum supply voltage of 1.2V and a maximum of 5.5V, making it suitable for a variety of power supply levels commonly found in microprocessor circuits.

This device does not include a watchdog timer or manual reset function, focusing instead on accurate voltage supervision and power fail detection. The internal 5k pull-up resistor simplifies circuit design and reduces external component count. The SOT-223 package's compact dimensions (6.7mm length, 3.7mm width, 1.8mm height) enhance board space efficiency.

Applications include power management ICs for microprocessor systems in industrial control, consumer electronics, and embedded computing, helping prevent erratic system behavior caused by power supply faults. It is compatible with Motorola 68XXX series and HC16 microprocessors, but applicable to a broad range of microcontroller platforms.

Monitors supply voltage and resets processor on power fail events. Wide operating temperature range for harsh environments. Compact surface mount SOT-223 package for space-constrained designs. Internal pull-up resistor reduces external parts.

Accurate voltage thresholds ensure system reliability. No watchdog timer or manual reset functionality included. Compatible with popular microprocessor architectures. Low cost and easy to implement power supervisor solution.

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