MAX4272ESA Maxim Integrated Products, MAX4272ESA Datasheet
MAX4272ESA
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MAX4272ESA Summary of contents
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... Internal Charge Pump Generates Gate Drive for External n-MOSFET ♦ Status Output Pin Indicates Fault/Safe Condition ♦ Space-Saving 8-Pin SO, 16-Pin QSOP Packages ________________________Applications Base Stations RAID Remote-Access Servers PART MAX4271ESA MAX4272ESA MAX4273EEE MAX4273ESE Pin Configurations appear at end of data sheet. Typical Operating Circuit M1 R SENSE N IN ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection ABSOLUTE MAXIMUM RATINGS IN to GND ............................................................................+15V STAT, OUTC, LLMON, AUXVCC to GND ...............-0.3V to +14V GATE to GND ..............................................-0. GATE to LLMON (Note 1).........................................-1V to +8.5V ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection ELECTRICAL CHARACTERISTICS (continued +2.7V to +13.2V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Slow Turn-Off Time t ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection ELECTRICAL CHARACTERISTICS (continued +2.7V to +13.2V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Input Voltage Range Input ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection ( 100mΩ 47µ SENSE BOARD SUPPLY CURRENT vs. INPUT VOLTAGE 1 10μA GATE ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection ( 100mΩ 47µ SENSE BOARD FAST GATE DISCHARGE CURRENT vs. V GATE 1 12V IN 1 ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection ( 100mΩ SENSE BOARD FAST GATE DISCHARGE CURRENT vs. TEMPERATURE 2 2.2 GATE IN 2.0 1.8 ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection ( 100mΩ 47µ SENSE BOARD INC THRESHOLD vs. INPUT VOLTAGE 0.625 RISING 0.615 0.605 FALLING 0.595 0.585 0.575 ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection ( 100mΩ 47µ SENSE BOARD STARTUP TIME (C BOARD 100μs/div 100mΩ, BOARD SENSE C = ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection PIN MAX4271 MAX4273 NAME MAX4272 6 11 CTIM 7 12 STAT — 14 REF — 15 INC — 16 OUTC Detailed Description The MAX4271/MAX4272/MAX4273 are circuit ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection 2.45V INPUT UVLO 150ms DELAY ON V RISING IN STAT V IN 4μA CTIM C TIM GND Figure 1. MAX4271/MAX4272 Functional Diagram Unlike other circuit breaker ICs, the MAX4271/ ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection AUXVCC 2.45V INPUT REF REF UVLO 1.2V 150ms DELAY ON V RISING IN STAT V IN 4μA CTIM CTIM V IN 4μA CTON CTON OUTC GND Figure 2. MAX4273 ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection In each case, when a fault is encountered, the status pin (STAT) goes low, and for the MAX4273, the device discharges the output voltage through a 1kΩ resistor from ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection If the sensed current is still high after the startup timer expires, the MOSFET gate is discharged completely as described below. In normal operation (after startup), the fast comparator ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection is stable. Any input voltage transient at IN below the UVLO threshold will reset the device and initiate a start- up sequence. These devices also have an overvoltage lockout ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection configured in automatic retry mode (see MOSFET Thermal Considerations). Using the MAX4271/MAX4273 in latched mode allows the consideration of MOSFETs with higher R lower power ratings. A MOSFET can ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection CTON determines the maximum time allowed to com- plete turn-on for the MAX4273. The default values for turn-on time (t ) and t are chosen by leaving ON RETRY ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection Table 6. “No-Overcurrent” Turn-On Timing (Startup Without Current Limit) C GATE DEVICE (nF) 0 Fairchild FDS6670A 22 0 International Rectifier IRF7401 22 0 Motorola MMSF5N03HD 22 t AND t ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection MOSFET with a duty cycle equal current equal Therefore, particular care FAST,SET has to be taken when choosing between immediate retry and board ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection SENSE GATE LLMON INC MAX4273 OUTC Figure 12. Power-On Reset SENSE GATE INC REF MAX4273 ON OUTC LLMON GND Figure 13. Power-On Reset ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection • • • Figure 15. Adjustable Undervoltage Lockout and Output Voltage Reset Generator is discharged immediately, but note that the MOSFET is not completely off until V < V ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection 100 D = 0.50 0.20 10 0.10 0.05 0.02 1 0.01 SINGLE PULSE (THERMAL RESPONSE) 0.1 0.0001 0.001 Figure 17. Example Curves (from IRF7413A) for Maximum Effective Transient Thermal ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection Calculate the MOSFET thermal resistance required for a short to ground (150°C - 85°C) / (5V θJA Using t = 1ms as the pulse duration, use START ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages TOP VIEW D ...
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Current-Limiting Hot-Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ Package Information (continued) 25 ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 26 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products ...