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RT9202B Datasheet(PDF) 5 Page - Richtek Technology Corporation |
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RT9202B Datasheet(HTML) 5 Page - Richtek Technology Corporation |
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5 / 14 page  RT9202B 5 DS9202B-03 March 2007 www.richtek.com Electrical Characteristics (VCC = 5V, TA = 25° C, Unless otherwise specified.) Parameter Symbol Test Conditions Min Typ Max Units VCC Supply Current / Regulated Voltage Nominal Supply Current ICC UGATE, LGATE open -- 3 6 mA Regulated Voltage from BOOT VCC VBOOT = 12V 5 6 7 V Power-On Reset Rising VCC Threshold VOCSET = 4.5V 3.85 4.1 4.35 V VCC Threshold Hysteresis VOCSET = 4.5V 0.3 0.5 0.7 V Rising VOCSET Threshold 0.8 1.25 2.0 V Reference Reference Voltage 0.784 0.8 0.816 V Oscillator Free Running Frequency 250 300 350 kHz Ramp Amplitude ∆ VOSC -- 1.75 -- VP-P Error Amplifier DC gain 32 35 38 dB PWM Controller Gate Driver Upper Drive Source RUGATE BOOT= 12V BOOT-VUGATE = 1V -- 7 11 Ω Upper Drive Sink RUGATE VUGATE = 1V -- 5 7.5 Ω Lower Drive Source RLGATE VCC - VLGATE = 1V, -- 4 6 Ω Lower Drive Sink RLGATE VLGATE = 1V -- 2 4 Ω To be continued Absolute Maximum Ratings (Note 1) l Supply Input Voltage, VCC ----------------------------------------------------------------------------------------- 7V l BOOT & UGATE to GND -------------------------------------------------------------------------------------------- 15V l Input, Output or I/O Voltage ---------------------------------------------------------------------------------------- GND − 0.3V to 7V l Power Dissipation, PD @ TA = 25 °C SOP-8 ------------------------------------------------------------------------------------------------------------------- 0.625W l Package Thermal Resistance (Note 4) SOP-8, θJA-------------------------------------------------------------------------------------------------------------- 160°C/W l Ambient Temperature Range ---------------------------------------------------------------------------------------0 °C to +70°C l Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260 °C l Storage Temperature Range ---------------------------------------------------------------------------------------- −65°C to +150°C l ESD Susceptibility (Note 2) HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV MM (Machine Mode) ------------------------------------------------------------------------------------------------- 200V Recommended Operating Conditions (Note 3) l Junction Temperature Range --------------------------------------------------------------------------------------- −40°C to +125°C |
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