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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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ISL81601 Datenblatt(PDF) 17 Page - Renesas Technology Corp |
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ISL81601 Datenblatt(HTML) 17 Page - Renesas Technology Corp |
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17 / 54 page  FN9299 Rev.3.1 Page 17 of 53 May 27, 2021 ISL81601 3. Specifications IMON_OUT Current ISEN+ = 12V. ISEN- = 11.96V 25 27.8 29.5 µA Output Current Sense Voltage to IMON_OUT Current Source Gain GmISEN 12V common-mode voltage applied to ISEN+/- pins, 0mV to 40mV differential voltage 170 200 220 µS IMON_OUT Error Amp GM Gm4 12 µS IMON_OUT Error Amp Voltage Gain AV4 72 dB IMON_OUT Error Amp Gain-BW Product GBW4 5 MHz Switching Frequency and Synchronization Switching Frequency fSW RT = 144kΩ 220 245 265 kHz RT = 72kΩ 420 450 485 kHz RT Open or to VCC5V 90 120 145 kHz RT = 0V 470 575 650 kHz RT Voltage VRT RT = 72kΩ 580 mV SYNC Synchronization Range fSYNC 140 600 kHz SYNC Input Logic High VSYNCH 3.2 V SYNC Input Logic Low VSYNCL 0.5 V Clock Output and Frequency Dither CLKOUT Output High VCLKH ISOURCE = 1mA, VCC5V = 5V 4.55 V CLKOUT Output Low VCLKL ISINK = 1mA 0.3 V CLKOUT Frequency fCLK RT = 72kΩ 420 450 485 kHz Dither Mode Setting Current Source IDITHER_MODE_SO 10 µA Dither Mode Setting Threshold Low VDITHER_MODE_L 0.26 V Dither Mode Setting Threshold High VDITHER_MODE_H 0.34 V Dither Source Current IDITHERSO 8µA Dither Sink Current IDITHERSI 10 µA Dither High Threshold Voltage VDITHERH 2.2 V Dither Low Threshold Voltage VDITHERL 1.05 V Diode Emulation Mode Detection LG1/PWM_MODE Current Source IMODELG1 7.5 10 12.5 µA LG1/PWM_MODE Threshold Low VMODETHL 0.26 V LG1/PWM_MODE Threshold High VMODETHH 0.34 V Buck Mode Diode Emulation Phase Threshold (Note 11) VCROSS1 VIN = 12V 2 mV Boost Mode Diode Emulation Shunt Threshold (Note 12) VCROSS2 VIN = 12V -2 mV Diode Emulation Burst Mode Burst Mode Enter Threshold VIMONOUTBSTEN IMON_OUT pin voltage 0.81 0.85 0.89 V Burst Mode Exit Threshold VMONOUTBSTEX IMON_OUT pin voltage 0.83 0.88 0.92 V Burst Mode Peak Current Limit Input Shunt Set Point VBST-CS VCS+ - VCS-, 12V common-mode voltage applied to CS+/- pins 16 27 39 mV Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 7 and “Typical Application Schematics” on page 5. VIN = 4.5V to 60V, or VDD = 8V ±10%, C_VCC5V = 4.7µF, TA = -40°C to +125°C, Typical values are at TA = +25°C, unless otherwise specified. Boldface limits apply across the operating temperature range, -40°C to +125°C. (Continued) Parameter Symbol Test Conditions Min (Note 6)Typ Max (Note 6)Unit |
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