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L6491D 데이터시트(PDF) 8 Page - STMicroelectronics |
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L6491D 데이터시트(HTML) 8 Page - STMicroelectronics |
8 / 24 page Electrical characteristics L6491 8/24 DocID024832 Rev 1 5 Electrical characteristics 5.1 AC operation Table 7. AC operation electrical characteristics (VCC = 15 V; PGND = SGND; TJ = +25 °C) Symbol Pin Parameter Test conditions Min. Typ. Max. Unit ton 1 vs. 8 3 vs 13 High/low-side driver turn-on propagation delay OUT = 0 V BOOT = VCC CL = 1 nF Vi = 0 to 3.3 V see Figure 3 85 120 ns toff High/low-side driver turn-off propagation delay 85 120 ns tsd 2 vs. 8, 13 Shutdown to high/low-side driver propagation delay 85 120 ns tisd Comparator triggering to high/low-side driver turn-off propagation delay Measured applying a voltage step from 0 V to 3.3 V to pin CP+; CP- = 0.5 V 175 220 ns MT Delay matching, HS and LS turn-on/off(1) 30 ns DT 5 Deadtime setting range see Figure 4 RDT = 0 , CL = 1 nF 0.12 0.18 0.24 µs RDT = 100 k, CL = 1 nF, CDT = 100 nF 1.2 1.4 1.6 µs RDT = 200 k, CL = 1 nF, CDT = 100 nF 2.2 2.6 3 µs MDT Matching deadtime(2) RDT = 0 , CL = 1 nF 50 ns RDT = 100 k, CL = 1 nF, CDT = 100 nF 165 ns RDT = 200 k, CL = 1 nF, CDT = 100 nF 260 ns tr 8,13 Rise time CL = 1 nF 15 40 ns tf Fall time CL = 1 nF 15 40 ns 1. MT = max. (|ton(LVG) - toff(LVG)|, |ton(HVG) - toff(HVG)|, |toff(LVG) - ton(HVG)|, |toff(HVG) - ton(LVG)|). 2. MDT = | DTLH - DTHL | (see Figure 5 on page 14). |
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