NIS5112 Electronic Fuse The NIS5112 is an integrated switch utilizing a high side Nchannel FET driven by an internal charge pump. This switch features a MOSFET which allows for current sensing using inexpensive chip resistors instead of expensive, low impedance current shunts. It is designed to operate in 12 V systems and includes a robust www.onsemi.com thermal protection circuit. MARKING Features DIAGRAM Integrated Power Device 8 Power Device Thermally Protected 112x No External Current Shunt Required SOIC8 NB 8 AYWW CASE 751 Enable/Timer Pin 1 1 Adjustable Slew Rate for Output Voltage 9 V to 18 V Input Range x = L for thermal latch off 30 m Typical = H for thermal autoretry Internal Charge Pump A = Assembly Location Y = Year ESD Ratings: Human Body Model (HBM) 4000 V WW = Work Week These are PbFree Devices = PbFree Package (Note: Microdot may be in either location) Typical Applications Hard Drives ORDERING INFORMATION Device Package Shipping NIS5112D1R2G SOIC8 2500 Latch Off Tape & Reel (PbFree) NIS5112D2R2G SOIC8 2500 / 8 AutoRetry Tape & Reel V CC (PbFree) For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Charge Voltage Brochure, BRD8011/D. Pump Regulator Current Current Limit Limit 4 Overvoltage Clamp Source Thermal 5, 6, 7 Latch Voltage Enable/ Slew Rate Timer Enable/Timer GND dV/dt 31 2 Figure 1. Block Diagram Semiconductor Components Industries, LLC, 2011 1 Publication Order Number: April, 2017 Rev. 10 NIS5112/DNIS5112 Table 1. FUNCTIONAL PIN DESCRIPTION Pin Function Description 3 Enable/Timer A high level signal on this pin allows the device to begin operation. Connection of a capacitor will delay turn on for timing purposes. A low input signal inhibits the operation. 1 Ground Negative input voltage to the device. This is used as the internal reference for the IC. 4 I A resistor between this pin and the source pin sets the current limit level. Limit 5,6,7 Source Source of power FET, which is also the switching node for the load. 2 dV/dt A capacitor from this pin to ground programs the slew rate of the output at turn on. This capacitor is discharged by an internal discharge circuit when the device is disabled via the enable pin. 8 V Positive input voltage to the device. CC Table 2. MAXIMUM RATINGS (Maximum ratings are those, that, if exceeded, may cause damage to the device. Electrical characteristics are not guaranteed over this range) Rating Symbol Value Unit Input Voltage, Operating, SteadyState (Input+ to Input) V 0.3 to 18 V in Transient (Conditions 1 ms) 0.3 to 25 Drain Voltage, Operating, SteadyState (Drain to Input) V 0.3 to 18 V DD Transient (Conditions 1 ms) 0.3 to 25 Drain Current, Peak (Internally Clamped) I 25 A Dpk Drain Current, Continuous (T =25C), (Note 2) I 5.3 A A Davg Thermal Resistance, JunctiontoAir Q JA 2 0.5 in Copper 120 C/W 2 1.0 in Copper 110 C/W Thermal Resistance, JunctiontoLead (Pin 8) Q 27 C/W JL Power Dissipation (T = 25C) (Note 1) P 1.0 W A max Operating Temperature Range (Note 2) T 40 to 175 C J Nonoperating Temperature Range T 55 to 175 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. Mounted on FR4 board, 1 in sq pad, 1 oz coverage. 2. Actual maximum junction temperature is limited by an internal protection circuit and will not reach the absolute maximum temperature as specified. www.onsemi.com 2