NIS5452 Series +5 Volt Electronic Fuse The NIS5452 series is a cost effective, resettable fuse. It is designed to buffer the load device from excessive input voltage which can damage sensitive circuits. It also includes an overvoltage clamp circuit that limits the output voltage during transients but does not shut the unit down, thereby allowing the load circuit to continue operation. www.onsemi.com Features Integrated Power Device 5 AMP, 5 VOLT 33 m Typical ELECTRONIC FUSE Internal Charge Pump Internal Undervoltage Lockout Circuit Internal Overvoltage Clamp WDFN10 These are PbFree Devices and are RoHS Compliant CASE 522AA Typical Applications Mother Board MARKING DIAGRAM Hard Drives Pin Function 1 Fan Drives XXX 15 SOURCE AYW 6NC 7 ILIMIT 8 Enable/Fault 9 dv/dt 10 GND 11 (flag) VCC XXX = Specific Device Code A = Assembly Location Y = Year W = Work Week = PbFree Package (Note: Microdot may be in either location) PIN ASSIGNMENTS Src GND Src dv/dt Src En/Flt Src I LIM Src NC (Top View) ORDERING INFORMATION Device Features Marking Package Shipping NIS5452MT1TXG Thermal Latching WDFN10 52 3000 / Tape & Reel V = 5.85 V, I = 2.1 A 18 (PbFree) clamp LIM NIS5452MT1TWG Thermal Latching WDFN10 52W 3000 / Tape & Reel V = 5.85 V, I = 2.1 A 18 (PbFree) clamp LIM For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: June, 2016 Rev. 3 NIS5452/DNIS5452 Series V IN Charge Enable/Fault Enable Pump V OUT Current I Thermal LIMIT Limit Shutdown Voltage dv/dt dV/dt Clamp Control UVLO GND Figure 1. Block Diagram FUNCTIONAL PIN DESCRIPTION Pin Function Description 15 Source This pin is the source of the internal power FET and the output terminal of the fuse. 7 I A resistor between this pin and the source pin sets the overload and short circuit current limit levels. Limit 8 Enable/Fault The enable/fault pin is a tristate, bidirectional interface. It can be used to enable or disable the output of the device by pulling it to ground using an open drain or open collector device. If a thermal fault occurs, the voltage on this pin will go to an intermediate state to signal a monitoring circuit that the device is in thermal shutdown. It can also be connected to another device in this family to cause a simultaneous shutdown during thermal events. 9 dv/dt The internal dv/dt circuit controls the slew rate of the output voltage at turn on. It has an internal ca- pacitor that allows it to ramp up over a period of 1.4 ms. An external capacitor can be added to this pin to increase the ramp time. If an additional time delay is not required, this pin should be left open. 10 Ground Negative input voltage to the device. This is used as the internal reference for the IC. 11 (belly pad) V Positive input voltage to the device. CC MAXIMUM RATINGS Rating Symbol Value Unit Input Voltage, operating, steadystate (V to GND, Note 1) V 0.6 to 14 V CC IN Thermal Resistance, JunctiontoAir C/W JA 2 0.1 in copper (Note 2) 154 2 0.5 in copper (Note 2) 93 JESD517 4layer board 50 Thermal Resistance, JunctiontoLead (Pin 1) 49 C/W JL Thermal Resistance, JunctiontoCase 20 C/W JC Total Power Dissipation T = 25C (operating) P 2.5 W A max Operating Temperature Range (Notes 3 and 4) T 40 to 150 C J Nonoperating Temperature Range T 55 to 155 C J Lead Temperature, Soldering (10 Sec) T 260 C L Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Negative voltage will not damage device provided that the power dissipation is limited to the rated allowable power for the device. 2. 1 oz copper, doublesided FR4. 3. Thermal limit is set above the maximum thermal rating. It is not recommended to operate this device at temperatures greater than the maximum ratings for extended periods of time. 4. Exceeding T will thermally destroy the FET. See AND9042/D. J www.onsemi.com 2