EVALUATION KIT AVAILABLE MAX17523 4.5V to 36V, 1A Current Limiter with OV, UV, and Reverse Protection General Description Benefits and Features Industrial Power Protection Increases Robustness The Olympus series of ICs are the industrys smallest Wide Input Supply Range: +4.5V to +36V and robust integrated system protection solutions. The Negative Input Tolerance to -36V MAX17523 adjustable overvoltage and overcurrent protec- Low R 190m (typ) tion device is ideal for protecting systems against positive ON and negative input voltage faults up to 40V, and feature Reverse Current Flow Control Input low 190m (typ) R integrated FETs. Thermal Overload Protection ON Extended -40C to +125C Temperature Range The adjustable overvoltage range is between 6V and 36V, while the adjustable undervoltage range is between 4.4V Flexible Design Options Eases Designs and 24V. The overvoltage-lockout (OVLO) and undervoltage- Adjustable OVLO and UVLO Thresholds lockout (UVLO) thresholds are set using optional external Programmable Forward-Current Limit: 0.15A to 1A resistors. The factory preset internal OVLO threshold is 33V Programmable Overcurrent Fault Response: Au- (typ), and the preset internal UVLO threshold is 19V (typ). toretry, Latch-Off, and Continuous Dual Enable Inputs: EN and High Voltage HVEN The MAX17523 also features programmable current-limit protection up to 1A. The device can be set for autoretry, Saves Space latch-off, or continuous fault response when an overcurrent 16-Pin, 3mm x 3mm, TQFN Package event occurs. Once current reaches the threshold, the Applications MAX17523 turns off after 21ms (typ) blanking time, and stays off during the retry period when set to autoretry mode. Sensor Systems The device latches off after the blanking time when set to Condition Monitoring latch-off mode. The device limits the current continuously Factory Sensors when set to continuous mode. The MAX17523 also features Process Analytics reverse current and thermal shutdown protection. Process Instrumentation The MAX17523 is available in a small, 16-pin (3mm x 3mm) Weighing and Batching Systems TQFN package. The MAX17523 operates over the -40C to +125C extended temperature range. Ordering Information appears at end of data sheet. Typical Application Circuit V POWER IN OUT 0.47F 4.7F IN OUT RIEN EN 100k R3 R1 SYSTEM VIO SYSTEM MAX17523 POWER SUPPLY OPTIONAL FOR HVEN HIGH INPUT UVLO FLAG SURGE CLHS APPLICATIONS OVLO GND CLTS1 SETI CLTS2 R4 R2 R SETI CLTS MODE HVEN GND 19-8450 Rev 3 5/21MAX17523 4.5V to 36V, 1A Current Limiter with OV, UV, and Reverse Protection Absolute Maximum Ratings (All voltages referenced to GND.) I (DC Operating)(Note 1) ...................................................1.1A IN IN to GND ...............................................................-40V to +40V Continuous Power Dissipation (T = +70C) A IN to OUT ...............................................................-40V to +40V TQFN (derate 20.8mW/C above +70C) ...................1667mW OUT .......................................................................-0.3V to +40V Operating Temperature Range ..........................-40C to +125C HVEN......................................................................-40V to +40V Maximum Junction Temperature .....................................+150C OVLO, UVLO, FLAG, EN, RIEN, Storage Temperature Range .............................-65C to +150C CLTS1, CLTS2, CLTS MODE .............................-0.3V to +6V Lead Temperature (soldering, 10s) .................................+300C SETI............................................ -0.3V to min(V , 1.22V)+0.3V Soldering Temperature (reflow) .......................................+260C IN CLHS ............................................... -0.3V to min(V , 5V)+0.3V IN Note 1: DC current is also limited by the thermal design of the system. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation 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. Package Information 16 TQFN Package Code T1633+5C Outline Number 21-0136 Land Pattern Number 90-0032 THERMAL RESISTANCE, FOUR-LAYER BOARD Junction to Ambient ( ) 48C/W JA Junction to Case ( ) 10C/W JC For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a +, , or - in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Maxim Integrated 2 www.maximintegrated.com