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NCP4326 Datasheet(PDF) 8 Page - ON Semiconductor |
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NCP4326 Datasheet(HTML) 8 Page - ON Semiconductor |
8 / 30 page NCP4326 http://onsemi.com 8 ELECTRICAL CHARACTERISTICS (For typical values TJ = 25°C, for min/max values TJ = 0°C to +105°C, Vcc = 12 V unless otherwise noted.) Characteristic Unit Max Typ Min Symbol Pin Flux Pin Internal Current Sourced by Flux pin when it is grounded (Note 5) 14 IFlux − 120 − mA Maximum Sink Current on Flux pin when the internal 1.0 V clamp is activated 14 IFlux_max − − 1.0 mA Input Clamp Voltage High state: when a current is sunk by pin 14 (Ipin 14 = IFlux_max) Low state: when a current is sourced by pin 14 (Ipin 14 = −1.0 mA) 14 VFlux_H VFlux_L − − 1.4 −60 − − V mV Internal Voltage gain of input signal sensed on Flux pin (guaranteed by design) 14 Gain − 9.5 − N/A Synchronization Block Input Threshold Voltage (Vpin 7 decreasing) 7 Vsync_th 50 70 100 mV Hysteresis (Vpin 7 increasing) 7 Vsync_Hyst − 35 − mV Maximum Sink Current on Sync pin when the internal 7.0 V clamp is activated 7 Isync_max − − 3.0 mA Input Clamp Voltage High state: when a current is sunk by pin 7 (Ipin 7 = Isync_max) Low state: when a current is sourced by pin 7 (Ipin 7 = −3.0 mA) 7 7 VCH VCL − − 7.4 −0.3 − − V Delay between the Sync and DRVx pin (Figures 8 and 9), when applying a falling edge on Sync in normal mode operation (Note 6) with 1.0 nF connected to DRVx pin 7 and 11 or 7 and 13 Tprop_ON − 200 500 ns Delay between the Ct voltage (VCt) and DRVx pin (Figures 8 and 9), when applying a rising edge on Ct @ VCPx = 1.7 V in normal mode operation (Note 6) with 1.0 nF connected to DRVx pin 4, 7 and 11 or 1, 7 and 13 Tprop_OFF − 280 500 ns Internal input capacitance at Vpin 7 = 1.0 V 7 Cpar − 10 − pF Error Amplifier Section 1 and 2 Voltage Feedback Input @ TJ = 25°C (Note 7) * Voltage follower measurement to reach 1% accuracy 2, 5 VFB1, 2 1.241 1.253 1.266 V Input Bias Current (VFB = 1.30 V) 2, 5 IIB1, 2 − −0.1 − mA Open Loop Voltage Gain (VCPx = 1.0 V to 5.0 V) 2, 5 AVOL1, 2 − 90 − dB Unity Gain Bandwidth (TJ = 25°C) 2, 5 BW1, 2 − 3.3 − MHz Power Supply Rejection Ratio (Vcc = 10 V to 15 V, Frequency range 120 Hz) 2, 5 PSRR1, 2 − 55 − dB Output Current Sink Current (VCPx = 1.1 V, VFB = 1.45 V) Source Current (VCPx = 4.5 V, VFB = 1.05 V) 1, 4 1, 4 Isink1, 2 Isource1, 2 2.0 − +6.0 −13 − −5.0 mA Output Voltage Swing High State (RL = 15 k to Ground, VFB=1.05 V) Low State (RL = 15 k to Vcc, VFB =1.45 V) 1, 4 1, 4 VOH1, 2 VOL1, 2 4.8 − 5.0 0.7 − 1.1 V 5. See characterization curves IFlux_pin (VFlux_pin) with −100 mV < VFlux_pin < +100 mV. 6. Normal operation when VENX > VENX_TH3. 7. See characterization curve for Voltage Reference vs. Temperature. |
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