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XCL225 Datasheet(PDF) 5 Page - Torex Semiconductor |
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XCL225 Datasheet(HTML) 5 Page - Torex Semiconductor |
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5 / 27 page  5/27 XCL225/XCL226 Series ■ ELECTRICAL CHARACTERISTICS XCL225/XCL226 Series Ta=25℃ PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT CIRCUIT FB Voltage VFB VFB=0.739V→0.761V, VFB Voltage when Lx pin oscillates 0.739 0.750 0.761 V ② Output Voltage Setting Range(*1) VOUTSET - 1 - 15 V - Operating Voltage Range VIN - 3 - 18 V - UVLO Detect Voltage VUVLO1 VIN:2.8V→2.6V, VFB=0.675V, VIN Voltage when Lx pin voltage changes from "H" level to "L" level 2.60 2.70 2.80 V ② UVLO Release Voltage VUVLO2 VIN:2.7V→2.9V、VFB=0.675V, VIN Voltage when Lx pin voltage changes from "L" level to "H" level 2.70 2.80 2.90 V ② Quiescent Current(XCL226) Iq VFB=0.825V - 12.5 17.5 μA ④ Stand-by Current ISTB VEN/SS=0V - 1.65 2.5 μA ⑤ Oscillation Frequency fOSC Connected to external components, IOUT=100mA 1098 1200 1302 kHz ① Minimum Duty Cycle DMIN VFB=0.825V - - 0 % ② Maximum Duty Cycle DMAX VFB=0.675V 100 - - % ② Lx SW "H" On Resistance RLxH VFB=0.675V, ILX=200mA - 0.99 1.14 Ω ② Lx SW "L" On Resistance RLxL VFB=0.825V, ILX=200mA - 0.73(*2) - Ω ② PFM Switch Current(XCL226) IPFM Connected to external components, IOUT=1mA - 320 - mA ① High side Current Limit (*3) ILIMH VFB=0.675V 920 1100 - mA ② Latch Time tLAT Type A only, Connected to external components, VFB=0V 0.5 1.0 1.7 ms ⑥ Internal Soft-Start Time tSS1 VEN/SS=0V→12V, VFB=0.675V, Time until Lx pin oscillates 0.5 1.0 1.7 ms ② External Soft-Start Time tSS2 VEN/SS=0V→12V, VFB=0.675V, RSS=430KΩ, CSS=0.47μF Time until Lx pin oscillates 17 26 35 ms ③ PG Detect Voltage VPGDET VFB=0.712V→0.638V, RPG:100kΩ pull-up to 5V, VFB Voltage when PG pin voltage changes from "H" level to "L" level 0.638 0.675 0.712 V ② PG Output Voltage VPG VFB=0.6V, IPG=1mA AGND - 0.3 V ② Efficiency (*4) EFFI Connected to external components, VOUT=5V, IOUT=1mA - 82(2) - % ① FB Voltage Temperature Characteristics ∆VFB/ (∆Topr・VFB) -40℃≦Topr≦105℃ - ±100 - ppm /℃ ② FB ‘H’ Current IFBH VIN=VEN/SS=18V、VFB=3.0V -0.1 - 0.1 μA ④ FB ‘L’ Current IFBL VIN=VEN/SS=18V、VFB=0V -0.1 - 0.1 μA ④ EN/SS ‘H’ Current IEN/SSH VIN=VEN/SS=18V、VFB=0.825V - 0.1 0.3 μA ④ EN/SS ‘L’ Current IEN/SSL VIN=18V、VEN/SS=0V、VFB=0.825V -0.1 - 0.1 μA ④ EN/SS ‘H’ Voltage VEN/SSH VEN/SS=0.3V→2.5V、VFB=0.71V, VEN/SS Voltage when Lx pin voltage changes from "L" level to "H" 2.5 - 18.0 V ② EN/SS ‘L’ Voltage VEN/SSL VEN/SS=2.5V→0.3V, VFB=0.71V, VEN/SS Voltage when Lx pin voltage changes from "H" level to "L" AGND - 0.3 V ② Thermal Shutdown Temperature TTSD Junction Temperature - 150 - ℃ - Hysteresis Width THYS Junction Temperature - 25 - ℃ - Inductance L Test Freq.=1MHz - 4.3 - μH - Inductor Rated Current IDC ∆T=+40℃ - 1200 - mA - Test Condition: Unless otherwise stated, VIN=12V, VEN/SS=12V (*1): Please use within the range of VOUT/VIN≧0.14 (*2): Design reference value. This parameter is provided only for reference. (*3): Current limit denotes the level of detection at peak of coil current. (*4): EFFI = {(output voltage) x (output current)} / {(input voltage) x (input current)} x 100 |
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