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RT9205ACS Datasheet(PDF) 5 Page - Richtek Technology Corporation |
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RT9205ACS Datasheet(HTML) 5 Page - Richtek Technology Corporation |
5 / 16 page Preliminary RT9205/A DS9205/A-03 May 2003 www.richtek.com 5 Absolute Maximum Ratings Supply Voltage VCC 7V BOOT & UGATE to GND 19V Input, Output or I/O Voltage GND −0.3V ~ 7V Package Thermal Resistance SOP-14, θJA 160 °C/W Ambient Temperature Range 0 °C ~ +70°C Junction Temperature Range -40 °C ~ +125°C Storage Temperature Range −65°C ~ +150°C Lead Temperature (Soldering, 10 sec.) 260 °C CAUTION: Stresses beyond the ratings specified in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Electrical Characteristics (VCC = 5V, TA = 25°C, Unless otherwise specified.) Parameter Symbol Test Conditions Min Typ Max Units VCC Supply Current Nominal Supply Current ICC UGATE, LGATE open -- 3 -- mA VCC Regulated Voltage ICC VBOOT = 12V 5 6 7 V Power-On Reset Rising VCC Threshold 3.8 4.1 4.4 V VCC Threshold Hysteresis -- 0.5 -- V Reference Reference Voltage VFB Both PWM and linear regulator 0.784 0.8 0.816 V Oscillator Free Running Frequency 250 300 350 KHz Ramp Amplitude ∆ VOSC -- 1.75 -- VP-P PWM Error Amplifier DC gain 32 35 38 dB PWM Controller Gate Driver Upper Drive Source RUGATE BOOT= 12V BOOT-VUGATE = 1V -- 7.5 11 Ω Upper Drive Sink RUGATE VUGATE = 1V -- 5 8 Ω Lower Drive Source RLGATE VCC - VLGATE = 1V, -- 3.5 6 Ω Lower Drive Sink RLGATE VLGATE = 1V -- 2 5 Ω Linear Regulator DRV Driver Source VDRV = 2V 100 -- -- mA Protection FB Over-Voltage Trip FB Rising 0.9 1 -- V FB & FBL Under-Voltage Trip FB & FBL Falling -- 0.5 0.65 V Soft-Start Interval -- 2.5 -- mS |
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