Defibrillation/Surge/ESD Protector

The MAX30031–MAX30034 are patent-pending protection devices intended to (with the help of external, energy-rated resistors) absorb repetitive defibrillation and other high-energy pulses to protect sensitive electronic circuitry in ECG and other medical/industrial equipment. The devices can withstand over 100,000 defibrillation pulses without failure.

The devices are intended to replace the gas-discharge tubes and transient absorbers in applications where its significant reduction in size is beneficial and its lower, well defined on-voltage can offer higher degrees of protection to sensitive electronics.

The devices use a combination of a rugged integrated circuit process and high-speed circuitry to ensure very fast turn-on times with trigger voltages low enough to not require secondary clamping circuitry. A low hold current of approximately 175mA ensures protection is maintained for the entire length of the high-energy transient event.

The MAX30031–MAX30034 are available in a small, 3mm x 5mm µMAX-8 package and are specified over the 0°C to +70°C temperature range.

Applications

* AED Units * Clinical Patient Monitoring * Fixed Broadband Wireless Access * Industrial Equipment Protection * Wearable Medical

* Low Leakage Defibrillation Protection IC Helps ECG Systems

* Low Capacitance ～ 3pF

* Low Leakage ～ 20pA @ 70°C

* Fast Turn-On < 2ns

* Low On-Voltage 3.9V (typ)

* High Peak Current in Excess of 4A

* Withstands Over 100k Defibrillation Pulses Without Failure

* 0°C to 70°C Temperature Range

* Small, 3mm X 5mm µMAX® Package