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FDS8880 датащи(PDF) 3 Page - Analog Devices |
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FDS8880 датащи(HTML) 3 Page - Analog Devices |
3 / 28 page Data Sheet ADP2381 Rev. 0 | Page 3 of 28 SPECIFICATIONS VIN = 12 V, TJ = −40°C to +125°C for min/max specifications, and TA = 25°C for typical specifications, unless otherwise noted. Table 1. Parameter Symbol Test Conditions/Comments Min Typ Max Unit PVIN PVIN Voltage Range V PVIN 4.5 20 V Quiescent Current I Q No switching 2 2.8 3.5 mA Shutdown Current I SHDN EN/SS = GND 80 130 170 µA PVIN Undervoltage Lockout Threshold PVIN rising 4.3 4.5 V PVIN falling 3.7 3.9 V FB FB Regulation Voltage V FB 0°C < T J < 85°C 0.594 0.6 0.606 V −40°C < T J < +125°C 0.591 0.6 0.609 V FB Bias Current I FB 0.01 0.1 µA ERROR AMPLIFIER (EA) Transconductance g m 360 500 620 µS EA Source Current I SOURCE 40 60 80 µA EA Sink Current I SINK 40 60 80 µA INTERNAL REGULATOR (VREG) VREG Voltage V VREG V PVIN = 12 V, IVREG = 50 mA 7.6 8 8.4 V Dropout Voltage V PVIN = 12 V, IVREG = 50 mA 350 mV Regulator Current Limit 65 100 135 mA SW High-Side On Resistance1 V BST − VSW = 5 V 44 70 mΩ High-Side Peak Current Limit 7.7 9.6 11.5 A Negative Current-Limit Threshold Voltage2 20 mV SW Minimum On Time t MIN_ON 120 170 ns SW Minimum Off Time t MIN_OFF 200 300 ns LOW-SIDE DRIVER (LD) Rising Time2 t R C DL = 2.2 nF; see Figure 17 20 ns Falling Time2 t F C DL = 2.2 nF; see Figure 20 10 ns Sourcing Resistor 4 6 Ω Sinking Resistor 2 3.5 Ω BST Bootstrap Voltage V BOOT 4.5 5 5.7 V OSCILLATOR (RT PIN) Switching Frequency f SW RT pin connected to GND 210 290 360 kHz RT pin open 400 550 690 kHz R OSC = 100 kΩ 425 500 570 kHz Switching Frequency Range f SW 250 1400 kHz SYNC Synchronization Range 250 1400 kHz SYNC Minimum Pulse Width 100 ns SYNC Minimum Off Time 100 ns SYNC Input High Voltage 1.3 V SYNC Input Low Voltage 0.4 V EN/SS Enable Threshold 0.5 V Internal Soft Start 1500 Clock cycles SS Pin Pull-Up Current I SS_UP 2.6 3.3 4 µA |
Аналогичный номер детали - FDS8880 |
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Аналогичное описание - FDS8880 |
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