NCP380, NCV380 Fixed/Adjustable CurrentLimiting PowerDistribution Switches www.onsemi.com The NCP380 is a high side power-distribution switch designed for applications where heavy capacitive loads and short-circuits are likely to be encountered. The device includes an integrated 55 m (DFN package), P-channel MOSFET. The device limits the output current to a desired level by switching into a constant-current regulation mode UDFN6 TSOP5 TSOP6 when the output load exceeds the current-limit threshold or a short is CASE 517AB CASE 483 CASE 318G present. The current-limit threshold is either user adjustable between 500 mA and 2.1 A via an external resistor or internally fixed. The MARKING DIAGRAMS power-switch rise and fall times are controlled to minimize current ringing during switching. 1 6 An internal reverse-voltage detection comparator disables the XXM 2 5 power-switch if the output voltage is higher than the input voltage to 3 4 protect devices on the input side of the switch. The FLAG logic output asserts low during over current, UDFN6 reverse-voltage or over temperature conditions. The switch is controlled by a logic enable input active high or low. 5 XXXAYW Features 2.5 V 5.5 V Operating Range 1 70 m High-side MOSFET TSOP5 Current Limit: User adjustable from 500 mA to 2.1 A Fixed 500 mA, 1 A, 1.5 A, 2 A and 2.1 A XXXAYW Under Voltage Lock-out (UVLO) Built-in Soft-start 1 Thermal Protection TSOP6 Soft Turn-off Reverse Voltage Protection XXX = Specific Device Code A =Assembly Location Junction Temperature Range: 40C to 125C M = Date Code Enable Active High or Low (EN or EN) Y = Year Compliance to IEC6100042 (Level 4) W = Work Week = PbFree Package 8.0 kV (Contact) 15 kV (Air) (Note: Microdot may be in either location) UL Listed File No. E343275 ORDERING INFORMATION NCV Prefix for Automotive and Other Applications Requiring See detailed ordering and shipping information in the package Unique Site and Control Change Requirements AECQ100 dimensions section on page 20 of this data sheet. Qualified and PPAP Capable These are Pb-Free Devices Typical Applications Laptops USB Ports/Hubs TVs Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: July, 2016 Rev. 16 NCP380/DNCP380, NCV380 USB DATA D+ USB D USB INPUT Port IN OUT VBUS 5 V GND 1 F 120 F R fault NCP380 100 k FLAG FLAG ILIM* EN EN R lim GND *For Adjustable Version Only. Figure 1. Typical Application Circuit OUT 1 6 IN OUT 1 5 IN IN 1 6 OUT PAD1 ILIM* 2 5 GND GND 2 GND 2 5 ILIM* FLAG 3 4 EN FLAG 3 4 EN EN 3 4 FLAG TSOP5 UDFN6 TSOP6 (Top view) *For adjustable version only, otherwise not connected. Figure 2. Pin Connections Table 1. PIN FUNCTION DESCRIPTION Pin Name Type Description EN INPUT Enable input, logic low/high (i.e. EN or EN) turns on power switch GND POWER Ground connection IN POWER Power-switch input voltage connect a 1 F or greater ceramic capacitor from IN to GND as close as pos- sible to the IC. FLAG OUTPUT Active-low open-drain output, asserted during overcurrent, overtemperature or reverse-voltage conditions. Connect a 10 k or greater resistor pull-up, otherwise leave unconnected. OUT OUTPUT Power-switch output connect a 1 F ceramic capacitor from OUT to GND as close as possible to the IC is recommended. A 1 F or greater ceramic capacitor from OUT to GND must be connected if the USB requirement (i.e.120 F capacitor minimum) is not met. ILIM* INPUT External resistor used to set current-limit threshold recommended 5 k < R < 250 k . ILIM PAD1** THERMAL Exposed Thermal Pad: Must be soldered to PCB Ground plane *(For adjustable version only, otherwise not connected. **For DFN version only. www.onsemi.com 2