DATASHEET ISL6186 FN7698 Rev 2.00 USB Port Power Supply Controller November 3, 2011 The ISL6186 USB power controller family provides Features overcurrent (OC) fault protection for one or more USB ports. 2.5V to 5V Operating Range This product family consists of eight individual functional 45m Integrated Power P-channel MOSFET Switches product variants and three package options and is operation rated for a nominal +2.5V to +5V range and specified over Continuous Current Options for 1.5A, 3A and 3.6A the full commercial and industrial temperature ranges. Thermally Insensitive 12ms of Current Limiting Prior to Each ISL6186 type incorporates a 45m P-channel MOSFET Turn-Off power switch for power control and features internal current Output Discharges with Reverse Current Blocking When monitoring, accurate current limiting, and current limited Disabled delay to turn-off for system supply protection along with control and communication I/O. Latch-off or Auto Restart and Enable Polarity Options 1A Off-State Supply Current The ISL6186 family offers product variants with specified continuous output current levels of 1.5A, 3A or 3.6A, enable Industry Standard Pin-for-Pin SOIC and Smaller DFN active high or low inputs, and latch off or automatic retry after Packages Available overcurrent turn-off, making these devices well suited for many low-power applications. Applications This family of ICs is offered in an industry standard SOIC package USB Port Power Management Including USB 3.0 as well as in the 70% smaller 3x3 DFN package, which provides Low Power Electronic Circuit Limiting and Breaker the same performance and an additional Power-Good output feature in the smallest possible (10 Ld DFN) package. D+ D- USB PORT 1 1.3 U S VBUS OUT B ENABLE 1.2 FAULT C O 1.1 N +5V VIN GND T R ISL6186 1.0 O L L E 0.9 R VBUS 0.8 USB PORT 2 D+ 0.7 D- -40 -25 0 254575 85 115 TEMPERATURE (C) USB PORT POWER FIGURE 2. NORMALIZED r TEMPERATURE FIGURE 1. TYPICAL APPLICATION DS(ON) CHARACTERISTIC CURVE FN7698 Rev 2.00 Page 1 of 18 November 3, 2011 NORMALIZED r DS(ON)ISL6186 Simplified Block Diagram PGD only on 10DFN GND PGD -V COMP - + VIN OUT POR VIN OUT CURRENT AND TEMP. MONITORING, GATE, DELAY AND OUTPUT CONTROL LOGIC EN FAULT Pin Configurations ISL6186 ISL6186 (8 LD SOIC/DFN) (10 LD DFN) TOP VIEW TOP VIEW GND PGD 1 10 GND OUT 1 8 VIN OUT 2 9 (GND) (GND) VIN 2 7 OUT EPAD VIN OUT 3 8 DFN ONLY EPAD 4 7 VIN OUT 3 6 VIN OUT 5 6 EN/EN FLT 4 5 EN/EN FLT Pin Descriptions PIN NUMBER 8 Ld SOIC/DFN 10 Ld DFN SYMBOL DESCRIPTION 1 1 GND IC ground reference 2, 3 2, 3, 4 VIN Chip bias, Controlled Voltage Input, Undervoltage Lock Out (UVLO). V provides chip bias voltage. At V IN IN < 1.7V, chip functionality is disabled, FLT is active and floating and OUT is held low. Range 0V to 5.5V 4 5 EN/EN Enable/Disable inputs, Active high (EN) and active low (EN) options enable the power switch. These inputs have internal 1M pull-off resistors. Range 0V to V IN FN7698 Rev 2.00 Page 2 of 18 November 3, 2011