MAX30031 Datasheet, PDF (1/9 Pages) Maxim Integrated Products – Low Leakage Defibrilliation Protection IC Helps ECG SYSTEMS

MAX30031/MAX30032/
MAX30033/MAX30034
Defibrillation/Surge/ESD Protector
General Description
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 defib 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.
Ordering Information appears at end of data sheet.
Benefits and Features
●● Low Leakage Defibrilliation Protection IC Helps ECG
Systems
●● Low Capacitance ~ 3pF
●● Low Leakage ~ 20pA at +70°C
●● Fast Turn-On < 2ns
●● Low On-Voltage 3.9V (typ)
●● High Peak Current in Excess of 4A
●● Withstands Over 100k Defibrilliation Pulses
Without Failure
●● 0°C to 70°C Temperature Range
●● Small, 3mm X 5mm µMAX^® Package
Applications
●● AED Units
●● Wearable Medical
●● Clinical Patient Monitoring
●● Industrial Equipment Protection
●● Fixed Broadband Wireless Access
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Typical Application Circuit
R_LIMIT
R_SEC
V+
+
R_LIMIT
R_SEC
-
19-8491; Rev 0; 3/16