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RT34063A Datasheet(PDF) 9 Page - Richtek Technology Corporation |
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RT34063A Datasheet(HTML) 9 Page - Richtek Technology Corporation |
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9 / 13 page  RT34063A 9 DS34063A-13 March 2007 www.richtek.com Absolute Maximum Ratings Power Supply Voltage ------------------------------------------------------------------------------------------------ 30V Feedback Input Voltage Range ------------------------------------------------------------------------------------- −0.3 to +30V Switch Collector Voltage --------------------------------------------------------------------------------------------- 30V Switch Emitter Voltage ----------------------------------------------------------------------------------------------- 30V Switch Collector to Emitter Voltage ------------------------------------------------------------------------------- 30V Driver Collector Voltage ---------------------------------------------------------------------------------------------- 30V Driver Collector Current (see Note) -------------------------------------------------------------------------------- 100mA Switch Current --------------------------------------------------------------------------------------------------------- 1.5A Power Dissipation, PD @ TA = 25 °C DIP-8 --------------------------------------------------------------------------------------------------------------------- 1.25W SOP-8 -------------------------------------------------------------------------------------------------------------------- 0.625W Package Thermal Resistance DIP-8, θJA --------------------------------------------------------------------------------------------------------------- 100°C/W SOP-8, θJA -------------------------------------------------------------------------------------------------------------- 160°C/W Operating Junction Temperature ----------------------------------------------------------------------------------- +125 °C Storage Temperature Range ---------------------------------------------------------------------------------------- 65 to +150 °C Note:Maximum package power dissipation limits must be observed. Electrical Characteristics (VCC = 5V, TA = 25° C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Units Oscillator Frequency VPIN5 = 0V, CT = 1.0nF 26 38 48 kHz Charge Current ICHG 5.0V ≤ VCC ≤ 30V 25 36 43 μA Discharge Current IDISCHG 5.0V ≤ VCC ≤ 30V 160 250 290 μA Discharge to Charge Current Ratio Pin 7 to VCC 5.5 6.9 7.9 -- Current Limit Sense Voltage VLIMIT ICHG = IDISCHG 280 330 380 mV Output Switch Saturation Voltage, Darlington Connection ISW = 1.0A, Pins1, 8 connected -- 1.0 1.3 V Saturation Voltage, Darlington Connection ISW = 1.0A, RPIN8 = 82Ω to VCC, Forced β ≅ 20 -- 0.45 0.7 V DC Current Gain ISW = 1.0A, VCE = 5.0V 50 75 -- -- Collector Off-state Current VCE = 30V -- 0.01 100 μA Comparator Threshold Voltage 1.225 1.25 1.275 V Threshold Voltage Line Regulation 3.0V ≤ VCC ≤ 30V -- 1.4 5.0 mV Input Bias Current IBIAS VIN = 0V -- -20 -400 nA Total Device Supply Current ICC VCC = 5.0V to 30V, CT = 1.0nF, Pin7 = VCC, VPIN5 > VTH, Pin2 = GND, Remaining pins open -- 3.0 4.5 mA |
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