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NCL30082B2DR2G Datasheet(PDF) 6 Page - ON Semiconductor |
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NCL30082B2DR2G Datasheet(HTML) 6 Page - ON Semiconductor |
6 / 35 page NCL30082 www.onsemi.com 6 Table 3. ELECTRICAL CHARACTERISTICS (Unless otherwise noted: For typical values TJ = 25°C, VCC = 12 V; For min/max values TJ = −40°C to +125°C, Max TJ = 150°C, VCC = 12 V) Description Unit Max Typ Min Symbol Test Condition ZERO VOLTAGE DETECTION CIRCUIT ZCD threshold voltage VZCD increasing VZCD(THI) 25 45 65 mV ZCD threshold voltage (Note 6) VZCD decreasing VZCD(THD) 5 25 45 mV ZCD hysteresis (Note 6) VZCD increasing VZCD(HYS) 10 – – mV Threshold voltage for output short circuit or aux. winding short circuit detection VZCD(short) 0.8 1 1.2 V Short circuit detection Timer VZCD < VZCD(short) tOVLD 70 90 110 ms Auto−recovery timer duration trecovery 3 4 5 s Input clamp voltage High state Low state Ipin1 = 3.0 mA Ipin1 = −2.0 mA VCH VCL – −0.9 9.5 −0.6 – −0.3 V Propagation Delay from valley detection to DRV high VZCD decreasing tDEM – – 150 ns Equivalent time constant for ZCD input (Note 6) tPAR – 20 – ns Blanking delay after on−time tBLANK 2.25 3 3.75 ms Blanking delay after on−time NCL30082B2 and NCL30082B3 tBLANKB2 1.2 1.6 2.0 ms Timeout after last demag transition tTIMO 5 6.5 8 ms CONSTANT CURRENT CONTROL Reference Voltage at TJ = 25°C VREF 245 250 255 mV Reference Voltage TJ = −40°C to 125°C VREF 242.5 250 257.5 mV Reference Voltage NCL30082D (TJ = 25°C) VREFD 495 500 505 mV Reference Voltage NCL30082D (TJ = 0°C to 85°C) VREFD 492 500 508 mV Reference Voltage NCL30082D (TJ = −40°C to 125°C) VREFD 488 500 512 mV Reference Voltage NCL30082B3 (TJ = 25°C) VREFB3 329 333 337 mV Reference Voltage NCL30082B3 (TJ = 0°C to 85°C) VREFB3 325 333 341 mV Reference Voltage NCL30082B3 (TJ = −40°C to 125°C) VREFB3 321 333 345 mV 50% reference voltage (for thermal foldback) VREF50 – 125 – mV 25% reference voltage (for thermal foldback) NCL30082D VREF25D − 125 − mV Current sense lower threshold for detection of the leakage inductance reset time VCS(low) 30 55 80 mV LINE FEED−FORWARD VVIN to ICS(offset) conversion ratio KLFF 15 17 19 mA/V Offset current maximum value VpinVIN = 4.5 V Ioffset(MAX) 67.5 76.5 85.5 mA VREF value below which the offset current source is turned off VREF decreases VREF(off) – 37.5 – mV VREF value above which the offset current source is turned on VREF increases VREF(on) – 50 – mV VALLEY SELECTION Threshold for line range detection Vin increasing (1st to 2nd valley transition for VREF > 0.75 V) VVIN increases VHL 2.28 2.4 2.52 V Threshold for line range detection Vin decreasing (2nd to 1st valley transition for VREF > 0.75 V) VVIN decreases VLL 2.18 2.3 2.42 V Blanking time for line range detection tHL(blank) 15 25 35 ms Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 6. Guaranteed by design. |
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