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FS6600 Scheda tecnica(PDF) 90 Page - NXP Semiconductors |
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FS6600 Scheda tecnica(HTML) 90 Page - NXP Semiconductors |
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90 / 166 page  NXP Semiconductors FS6600 Fail-safe system basis chip with multiple SMPS and LDO TA = −40 °C to 125 °C, unless otherwise specified. VSUP = VSUP_UVH to 36 V, unless otherwise specified. All voltages referenced to ground. Symbol Parameter Min Typ Max Unit To be recalculated for different RSHUNT and different VPRE_LIM_TH VPRE_DRV HS and LS gate driver output voltage — VBOS — V 60 130 220 mA 120 260 430 mA 220 520 860 mA IPRE_GATE_DRV HS and LS gate driver pull up and pulldown current capability (OTP_VPRESRHS[1:0] and OTP_ VPRESRLS[1:0] bits by default + VPRESRHS[1:0] and VPRESRLS[1:0] bits by SPI) 420 900 1490 mA Effective output capacitor for FPRE_SW = 455 kHz 40 66 220 μF Effective output capacitor for FPRE_SW = 2.22 MHz 20 44 110 µF COUT_PRE Output decoupling capacitor — 0.1 — μF Effective input capacitor (Cpi2) 20 — — μF CIN_PRE Input decoupling capacitor — 0.1 — μF IPRE_DRV Combined HS + LS gate driver average current capability IPRE_DRV < FPRE_SW × (QCHS + QCLS) with QCHS = gate charge of Q2 at VBOS with QCLS = gate charge of Q1 at VBOS — — 30 mA gmEAPRE Error amplifier transconductance 1.0 1.5 2.1 ms 29 40 51 mV/μs 36 50 64 mV/μs 43 60 77 mV/μs 51 70 89 mV/us 58 80 102 mV/μs 65 90 115 mV/μs 73 100 127 mV/μs 102 140 178 mV/μs 124 170 216 mV/μs 146 200 254 mV/μs VPRE_SLOPE Slope compensation (OTP_VPRESC[5:0] bits) 175 240 305 mV/μs TPRE_UV_DFS VPRE_UVL filtering time to go to DEEP-FS during VPRE start up 1.8 2 2.2 ms TPRE_DT Dead time to avoid cross conduction (this timing does not take into account the external FET turn ON/OFF times) 20 30 40 ns — 250 — μs VPRE_OFF_DLY Wait time between VBOOST OFF and VPRE OFF (OTP_VPRE_off_dly bit) — 32 — ms RPRE_DIS Discharge resistor (when VPRE is disabled) 250 500 1000 Ω IPRE_SW_LKG PRE_SW leakage — — 10 µA RDRV_OFF HS and LS gate driver pulldown resistor when VPRE is disabled 5 — 35 kΩ RBOOT_OFF PRE_BOOT pulldown resistor when VPRE is disabled 1.2 — 2.6 kΩ Table 79. Electrical characteristics...continued FS6600 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved. Product data sheet Rev. 3 — 17 July 2024 Document feedback 90 / 166 |
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