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FS6407 датащи(PDF) 20 Page - NXP Semiconductors |
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FS6407 датащи(HTML) 20 Page - NXP Semiconductors |
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20 / 111 page ![]() 20 NXP Semiconductors FS6407/FS6408 VPRE voltage pre-regulator fSW_PRE VPRE Switching Frequency 412 437.5 465 kHz tSW_PRE VSW_PRE On and Off Switching Time – – 30 ns (20) tPRE_SOFT VPRE Soft Start Duration (COUT ≤ 100 µF) 500 – 700 µs tPRE_BLK_LIM VPRE Current Limitation Blanking Time 200 – 600 ns tIPRE_OC VPRE Overcurrent Filtering Time 30 – 120 ns (20) tPRE_UV VPRE Undervoltage Filtering Time 20 – 40 µs tPRE_UV_4p3 Vpre Shut-off Filtering Time 3.0 – 7.0 µs dIPRE/DT VPRE Load Regulation Variation – – 25 A/ms (20) tPRE_WARN VPRE Thermal Warning Filtering Time 30 – 40 µs tPRE_TSD VPRE Thermal Detection Filtering Time 1.0 – 3.0 µs tLS_RISE/FALL LS Gate Voltage Switching Time (IOUT = 300 mA) – – 50 ns Vsense voltage regulator tVSNS_UV VSNS Undervoltage Filtering Time 1.0 – 3.0 µs Vcore voltage regulator tCORE_BLK_LIM VCORE Current Limitation Blanking Time 20 – 40 ns fSW_CORE VCORE Switching Frequency 2.20 2.34 2.49 MHz tSW_CORE VSW_CORE On and Off Switching Time 6.0 – 12 ns VCORE_SOFT VCORE Soft Start (COUT = 100 µF max) – – 10 V/ms tCORE_WARN VCORE Thermal Warning Filtering Time 30 – 40 µs tCORE_TSD VCORE Thermal Detection Filtering Time 1.0 – 3.0 µs Vcca voltage regulator tCCA_LIM VCCA Output Current Limitation Filter Time 1.0 – 3.0 µs tCCA_LIM_OFF1 tCCA_LIM_OFF2 VCCA Output Current Limitation Duration 10 50 – – – – ms tCCA_WARN VCCA Thermal Warning Filtering Time 30 – 40 µs tCCA_TSD VCCA Thermal Detection Filter Time (int. MOSFET) 1.0 – 3.0 µs dILOAD/dt VCCA Load Transient – 2.0 – A/ms (20) VCCA_SOFT VCCA Soft Start (5.0 V and 3.3 V) – – 50 V/ms Notes 20. Guaranteed by characterization. Table 5. Dynamic electrical characteristics (continued) TCASE = -40 °C to 125 °C, unless otherwise specified. VSUP = VSUP_UV_L to 36 V, unless otherwise specified. All voltages referenced to ground. Symbol Parameter Min. Typ. Max. Unit Notes |
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