Low ON resistance(85mΩ) High Function Power Switch New Product Leaflet XC8107/XC8108/XC8109 Series Smartphone Portable Gaming Digital Camera Notebook PC The XC8107/XC8108/XC8109 series are high-function power switch ICs with an internal Pch MOS. These ICs are ideal as a USB high-side switch, for power line distribution, and as a load switch for load breaker applications. As an additional function, the XC8107 series includes overcurrent limiting with an accuracy of ±10%. On the XC8108/XC8109 series, an external resistor can be used to set the current limit to a value from 0.075A to 2.4A. The flag pin is an Nch open drain that detects abnormal system states such as overcurrent, reverse current, and overheating, and outputs Low level. The IC is housed in the small USP6C package or the standard SOT-25 package (XC8107 only). USP-6C (1.8x2.0x0.6mm) SALES 1 Features a variety of additional functions and protective circuits Reverse current protection Internal UVLO circuit (1.9V detection, 2.0V release) Internal soft-start function (0.6 ms) Inrush Current 5V USB Input VIN VOUT 0.1μF 10kΩ FLG CE USB Control + 120μF 0.1μF USB Port ILIM VSS RILIM Flag Out Flag output reports over current conditions on USB VBUS as well as over heating or reverse current Adjustable Current Limit (XC8108/XC8109) CE pin input logic selection SALES 2 Auto reset and latch-off types are selectable Latch-off types(ＸＣ810xxD) Auto reset types(ＸＣ810xxC) CIN=1.0μF(ceramic), CL=1.0μF(ceramic) CIN=1.0μF(ceramic), CL=1.0μF(ceramic) 6.0 0.5A type 1.0A type 1.5A type 2.0A type 5.0 4.0 Output Voltage : VOUT[V] Output Voltage : VOUT[V] 6.0 3.0 2.0 0.5A type 1.0A type 1.5A type 2.0A type 5.0 4.0 3.0 2.0 1.0 1.0 0.0 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.0 4.0 Output Current : IOUT[A] Automatically resets when overcurrent state or reverse voltage state stops 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Output Current : IOUT[A] Even after the overcurrent or reverse voltage state stops, the switching transistor is latched to the OFF state. When the input voltage or CE voltage is reapplied, latch operation is cancelled. Features 85mΩ(VIN=5.0V USP-6C) 2.5V～5.5V(Operation Voltage 6V) Flag Function Over-current detection, Reverse voltage detection Input Voltage Supply Current 40μA Protection Circuit XC8107:0.5A(0.9A),1.0A(1.4A),1.5A(1.9A),2.0A(2.4A) Functions Reverse Current, Soft-start, Over Current Flag Output, CE Pin Input Logic Selectable XC8108: 2.0A(0.9A~2.4A) XC8109: 0.9A(0.075A~1.3A) UVLO Function Packages USP-6C, SOT-25(XC8107 only) ON Resistance Maximum Recommended Output Current (Current limit set) Overheat state detection Detect Voltage(1.9V), Release Voltage(2.0V) www.torex.co.jp/english July 2014 ● Values shown in this sheet can be changed without any prior notice. New Product Leaflet Low ON resistance(85mΩ) High Function Power Switch XC8107/XC8108/XC8109 Series SALES Current limiting responds quickly (in 2μs) when an output short occurs 3 XC8107xxxxxR XC8107xxxxxR VIN=5.0V,Ta=25℃,CL=open 14.0 6.0 12.0 4.0 10.0 2.0 8.0 Output Voltage 0.0 6.0 -2.0 4.0 -4.0 2.0 In Rush Current -6.0 0.0 -8.0 -2.0 Current Limit Response [μs] 8.0 In Rush Current:[A] Voltage:[V] VIN=5.0V,Ta=25℃,CL=open 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0.0 1.0 Time [2μs/div] 2.0 3.0 4.0 5.0 6.0 Peak Limit Current [A] High-speed short-circuit protection reduces effects on the power line SALES Abnormal system state detection with flag function 4 Flag operation when overcurrent occurs ② Count resets if current limit turns OFF before 7.5 ms ② When reverse voltage state stops, count resets Count starts again if reverse voltage state occurs Count starts again if current limit turns ON ④ Current limit OFF ⇒Count starts ① Current limit ON ⇒Count starts 7.5ms Count IOUT Flag operation during reverse current protection ⑤ Count resets if current limit turns ON before 7.5 ms Count starts again when current limit turns OFF ⑥When normal state continues for 4 ms, FLG=H is output ⇒Flag function off ① VIN<VOUT (reverse voltage state) ⇒Reverse current protection circuit ON Count starts 4ms Count VOUT 7.5ms Count H Output ⑤ Count resets if reverse voltage state occurs again On return to normal state, count starts again H Output FLG 4ms Count H Output H Output L Output FLG L Output ③ When current limit ON state continues for 7.5 ms, FLG = L is output ⇒Flag function operates ⑥ When current limit OFF state continues for 7.5 ms, FLG = H is output ⇒Flag function off ③ When reverse voltage state continues for 4 ms, FLG = L is output ⇒Flag function operates When overcurrent state continues for 7.5ms (TYP.), flag pin outputs Low level ④ VIN≧VOUT (normal state) ⇒Count starts When reverse current state continues for 4ms (TYP.), flag pin outputs Low level The flag function for detection of abnormal system states contributes to the simplification of sequence control circuit design SALES 5 Ideal for a low ON resistance (85mΩ) load switch XC8107/XC8108/XC8109 Discrete load Pch VIN VOUT CE R VSS VIN VIN Nch Signal Low ON resistance Pch FET and integration of peripheral circuits into one chip contribute to space saving and higher device reliability through reduction of the number of components www.torex.co.jp/english July 2014 ●Values shown in this sheet can be changed without any prior notice.