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RT8223L Datasheet(PDF) 9 Page - Richtek Technology Corporation |
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RT8223L Datasheet(HTML) 9 Page - Richtek Technology Corporation |
9 / 24 page RT8223L/M 9 DS8223L/M-04 April 2011 www.richtek.com Parameter Symbol Test Conditions Min Typ Max Unit UVP Shutdown Blanking Time tSHDN_UVP From ENTRIPx Enable -- 5 -- ms Thermal Shutdown Thermal Shutdown TSHDN -- 150 -- °C Thermal Shutdown Hysteresis -- 10 -- °C Logic Input Low Level (DEM Mode) -- -- 0.8 REF Level (PWM Mode) 1.8 -- 2.3 SKIPSEL Input Voltage High Level (Ultrasonic Mode) 2.7 -- -- V On Level (SMPS On) -- -- 3 ENTRIPx Input Voltage VENTRIPx High Level (SMPS Off) 4.5 -- -- V Logic-High VIH 2.4 -- -- EN Threshold Voltage Logic-Low VIL -- -- 0.4 V EN Voltage VEN Floating, Default Enable 2.4 3.3 4.2 V VEN = 0.2V, Source 1.5 3 5 EN Current IEN VEN = 5V, Sink -- 3 8 μA Logic-High VIH_ENC 2 -- -- ENC Threshold Voltage (RT8223M) Logic-Low VIL_ENC -- -- 0.6 V VOUT1 / VOUT2 = 200kHz/250kHz -- -- 0.8 VOUT1 / VOUT2 = 300kHz/375kHz 1.8 -- 2.3 TONSEL Setting Voltage VOUT1 / VOUT2 = 400kHz/500kHz 2.7 -- -- V VTONSEL, VSKIPSEL = 0V or 5V −1 -- 1 Input Leakage Current VENC = 0V or 5V −1 -- 1 μA Internal BOOT Switch Internal Boost Switch On-Resistance VREG5 to BOOTx, 10mA -- 40 80 Ω Power MOSFET Drivers UGATEx, High State, BOOTx to PHASEx Forced to 5V -- 4 8 UGATEx On-Resistance UGATEx, Low State, BOOTx to PHASEx Forced to 5V -- 1.5 4 Ω LGATEx, High State -- 4 8 LGATEx On-Resistance LGATEx, Low State -- 1.5 4 Ω LGATEx Rising -- 30 -- Dead Time UGATEx Rising -- 40 -- ns |
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