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SI8540 Datasheet(PDF) 5 Page - Silicon Laboratories |
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SI8540 Datasheet(HTML) 5 Page - Silicon Laboratories |
5 / 18 page Si8540 Rev. 1.2 5 Table 2. DC and AC Characteristics (Unless otherwise specified: VRG1 =+5 to +36V, RG1=RG2=200, VSENSE =0 V, TA = –40 to +85 °C) Parameter Symbol Test Condition Min Typ Max Unit Operating Voltage VRG1 5— 36 V Operating Frequency F 0 20 — kHz Total Input Current IRG1+IRG2 ILOAD = 0 A — 46 90 µA Input Currents IRG1, IRG2 ILOAD = 0 A — 23 45 µA Input Current Matching IOS IRG1 – IRG2 — ±0.4 ±1.5 µA Sense Voltage1 VSENSE — 100 — mV OUT Current Accuracy IRG/IOUT VSENSE = 100 mV — ±0.2 ±1.5 % No-Load OUT Error VRG1 =10V, VSENSE =0V — 0.5 15 µA Low-Level OUT Error VRG1 =10V, VSENSE =3mV — ±0.5 +10 µA Power-Supply Rejection PSR VSENSE = 100 mV — -85 — dB Shutdown Supply Current IRG1+IRG2 VSHDN =2.4 V — 3.5 9 µA SHDN Input Low Voltage VIL —— 0.3 V SHDN Input Low Current IIL VSHDN =0V — — 1.0 µA SHDN Input High Voltage VIH 2.4 — — V SHDN Input High Current IIH VSHDN = 2.4 V — — 1.0 µA OUT Output Voltage Range VOUT VOUT clamped at 8 V 0 — VRG1 – 3.5 (<8) V OUT Output Resistance (Internal) IOUT =1.5 mA 1 3 — M OUT Rise, Fall Time VSENSE = 5 mV to 150 mV, ROUT =2 =k, COUT = 50 pF, 10% to 90% (Note 2) — — 0.4 0.5 — — µs µs OUT Settling Time to 1% of Final Value VSENSE = 5 to 150 mV, ROUT =2k, COUT = 50 pF (Note 2) — — 1 2 — — µs µs Maximum Output Current IOUT For IOUT > 1.5 mA the internal current limitation starts to limit the output current 1.5 — 10 mA Notes: 1. VSENSE is the voltage across the sense resistor. 2. COUT is the load capacitance seen by the OUT pin. |
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