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XCL205 Datasheet(PDF) 3 Page - Torex Semiconductor |
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XCL205 Datasheet(HTML) 3 Page - Torex Semiconductor |
3 / 26 page 3/26 XCL205/XCL206/XCL207 Series ■ BLOCK DIAGRAM ■ ABSOLUTE MAXIMUM RATINGS Ta = 25℃ PARAMETER SYMBOL RATINGS UNITS VIN Pin Voltage VIN - 0.3 ~ 6.5 V LX Pin Voltage VLX - 0.3 ~ VIN + 0.3≦6.5 V VOUT Pin Voltage VOUT - 0.3 ~ 6.5 V CE/MODE Pin Voltage VCE - 0.3 ~ 6.5 V LX Pin Current ILX ± 1500 mA Power Dissipation Pd 1000 *1 mW Operating Temperature Range Topr - 40 ~ + 85 ℃ Storage Temperature Range Tstg - 40 ~ + 105 ℃ ● XCL205A / XCL206A / XCL207A series NOTE: The XCL205 offers a fixed PWM control, a signal from CE/MODE Control Logic to PWM/PFM Selector is fixed to "L" level inside. The XCL206 control scheme is PWM/PFM automatic switching, a signal from CE/MODE Control Logic to PWM/PFM Selector is fixed to "H" level inside. The diodes placed inside are ESD protection diodes and parasitic diodes. CE/MODE R2 R1 Error Amp. Vref with Soft Start, CE Phase Compensation PWM/PFM Selector Current Feedback Current Limit PWM Comparator Logic Synch Buffer Drive R3 R4 UVLO UVLO Cmp Ramp Wave Generator OSC Lx VSS VIN VOUT CE/MODE Control Logic VSHORT FB CFB Inductor VSS L2 L1 *1: The power dissipation figure shown is PCB mounted (40mm×40mm, t=1.6mm, Glass Epoxy FR-4). Please refer to page 16 for details. ● XCL205B / XCL206B / XCL207B / XCL205C / XCL206C / XCL207C series CE/MODE R2 R1 Error Amp. Vref with Soft Start, CE Phase Compensation PWM/PFM Selector Current Feedback Current Limit PWM Comparator Logic Synch Buffer Drive R3 R4 UVLO UVLO Cmp Ramp Wave Generator OSC Lx VSS VIN VOUT CE/MODE Control Logic CE/ VSHORT FB CFB VSS Inductor L2 L1 NOTE: The XCL205 offers a fixed PWM control, a signal from CE/MODE Control Logic to PWM/PFM Selector is fixed to "L" level inside. The XCL206 control scheme is PWM/PFM automatic switching, a signal from CE/MODE Control Logic to PWM/PFM Selector is fixed to "H" level inside. The diodes placed inside are ESD protection diodes and parasitic diodes. |
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