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FDS8880 数据表(PDF) 4 Page - Analog Devices |
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FDS8880 数据表(HTML) 4 Page - Analog Devices |
4 / 32 page ADP2325 Data Sheet Rev. 0 | Page 4 of 32 SPECIFICATIONS PVIN1 = PVIN2 = 12 V at TJ = −40°C to +125°C, unless otherwise noted. Table 1. Parameters Symbol Test Conditions/Comments Min Typ Max Unit POWER INPUT (PVINx PINS) Power Input Voltage Range VPVIN 4.5 20 V Quiescent Current (PVIN1 + PVIN2) IQ MODE = GND, no switching 3 5 mA Shutdown Current (PVIN1 + PVIN2) ISHDN EN1 = EN2 = GND 30 40 μA PVINx Undervoltage Lockout Threshold UVLO PVINx Rising 4.2 4.4 V PVINx Falling 3.5 3.7 V FEEDBACK (FBx PINS) FBx Regulation Voltage1 VFB PVINx = 4.5 V to 20 V 0.594 0.6 0.606 V FBx Bias Current IFB 0.01 0.1 μA ERROR AMPLIFIER (COMPx PINS) Transconductance gm 370 500 630 μS Error Amplifier Source Current ISOURCE 40 65 90 μA Error Amplifier Sink Current ISINK 45 65 85 μA INTERNAL REGULATOR (INTVCC PIN) INTVCC Voltage 4.75 5 5.25 V Dropout Voltage IINTVCC = 30 mA 300 mV Regulator Current Limit 80 100 120 mA SWITCH NODE (SWx PINS) High-Side On Resistance2 VBST to VSW = 5 V 48 80 mΩ High-Side Peak Current Limit RILIM = floating, VBST to VSW = 5 V 6.4 8 9.6 A RILIM = 47 kΩ, VBST to VSW = 5 V 3.4 4.8 6.2 A Low-Side Negative Current-Limit Threshold Voltage3 50 mV SWx Minimum On Time3 tMIN_ON 130 ns SWx Minimum Off Time3 tMIN_OFF 150 ns LOW-SIDE DRIVER (DLx PINS) Rising Time3 tR CDL = 2.2 nF, see Figure 23 20 ns Falling Time3 tF CDL = 2.2 nF, see Figure 26 10 ns Sourcing Resistor 4 6 Ω Sinking Resistor 1.4 3 Ω OSCILLATOR (RT PIN) PWM Switching Frequency fSW ROSC = 100 kΩ 510 600 690 kHz PWM Frequency Range 250 1200 kHz SYNCHRONIZATION (SYNC PIN) SYNC Input SYNC configured as input Synchronization Range 300 1200 kHz Minimum On Pulse Width 100 ns Minimum Off Pulse Width 100 ns High Threshold 1.3 V Low Threshold 0.4 V SYNC Output SYNC configured as output Frequency on SYNC Pin fCLKOUT fSW kHz Positive Pulse Time 100 ns SOFT START (SSx PINS) SSx Pin Source Current ISS 2.5 3.5 4.5 μA |
类似零件编号 - FDS8880 |
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类似说明 - FDS8880 |
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