19-5930 Rev 1 1/12 EVALUATION KIT AVAILABLE MAX34406 Quad Current-Sense Amplifier with Overcurrent Threshold Comparators General Description Features The MAX34406 is a quad, high-side, unidirectional, cur- S Four Precision Current-Sense Amplifiers rent-sense amplifier that offers precision accuracy. It S Fixed Gains of 25V/V, 50V/V, 100V/V, and 200V/V provides analog outputs for each of the four amplifiers S Less Than 600V of Input Offset that can be routed to an external ADC, and contains four S Less Than 0.6% of Gain Error (T/F/H) or 0.8% of overcurrent comparators with a fixed 1.0V threshold. All four comparators are logically ORed, and the result can Gain Error (W) be delayed/filtered with an external capacitor before it is S Wide 2.0V to 28V Common Mode Range fed to a latched common shutdown open-drain output pin. S Analog Voltage Outputs for Each Amplifier S Independent Overcurrent Comparators with Fixed Applications 1.0V Threshold Network Switches/Routers S Low Power Consumption Base Stations S -40NC to +85NC Temperature Range Servers S Small 24-Pin TQFN (4mm x 4mm) Package Smart Grid Network Systems Ordering Information appears at end of data sheet. Industrial Controls Block Diagram V DD ENA AMPLIFIER 4 POR AMPLIFIER 3 AMPLIFIER 2 AMPLIFIER 1 MAX34406 R1 OR 4 INx+ R1 4 P INx- OR CLR R OUT SHTDN D 5A 6V N N CLAMP CK Q N LATCH THRESHOLD = V x 50% DD 1.0V 4 4 REFERENCE OUTx GND OCx CDLY For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX34406.related Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX34406 Quad Current-Sense Amplifier with Overcurrent Threshold Comparators ABSOLUTE MAXIMUM RATINGS Voltage Range on INx+ and INx- OUT1, OUT2, OUT3, OUT4 Short Circuit to GND ....Continuous Relative to GND .................................................-0.3V to +30V Operating Junction Temperature Range ........... -40NC to +85NC Voltage Range on V Relative to GND .................-0.3V to +6V Storage Temperature Range ............................ -55NC to +125NC DD Voltage Range on Remaining Pins Lead Temperature (soldering, 10s) ................................+300NC Relative to GND .................................... -0.3V to (V + 0.3V) Soldering Temperature (reflow) ......................................+260NC DD Continuous Power Dissipation (T = +70NC) A TQFN (derate 27.8mW/NC above +70NC)...............2222.2mW Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional opera- tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = V = 12V, V = 0V, T = -40NC to +85NC, unless otherwise noted. Typical values are T = +25NC) (Note 1) INx+ INx- SENSE A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V Operating Range V 2.7 5.5 V DD DD V Supply Current I (Note 2) 200 FA DD DD Common-Mode Input Range V Guaranteed by CMRR 2.0 28 V CM Common-Mode Rejection Ratio CMRR V > 2.0V at T = +25NC 86 120 dB INx+ A Input Offset Voltage V (Note 3) Q100 Q600 FV OS MAX34406T 25 MAX34406F 50 Gain (0.5V < V < 1.5V) G V/V OUTx MAX34406H 100 MAX34406W 200 MAX34406T/F/H Q0.6 Gain Error GE (Note 4) % MAX34406W Q0.8 MAX34406T/F/H 10 OUTx Output Resistance R (Note 5) k OUTx MAX34406W 20 MAX34406T 15 MAX34406F 30 OUTx Low Voltage V mV OL MAX34406H 60 MAX34406W 120 MAX34406T 125 MAX34406F 60 V = 2.0V OUTx Bandwidth BW kHz (Note 5) MAX34406H 30 MAX34406W 15 V x V + DD DD ENA Input Logic-High V V IH 0.7 0.3 V - V x GND DD ENA Input Logic-Low V V IL 0.3 0.3 ENA Input Leakage Q1 FA Output Logic-Low (SHTDN, OCx) V I = 2mA 0.3 V OL OL Maxim Integrated Products 2