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L5955 Datasheet(PDF) 7 Page - STMicroelectronics |
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L5955 Datasheet(HTML) 7 Page - STMicroelectronics |
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7 / 17 page  L5955 Electrical specification 7/17 ΔV load Load regulation 0.5mA ≤ I ST-BY2 ≤ 300mA 100 mV VDROPOUT Dropout voltage (measure VBAT - VST-BY2 when VST-BY2 drops0.1V) IST-BY2 = 300mA IST-BY2 = 5mA 4.1 3 V V Ilim2 Current limit 360 700 mA SVR3 Supply voltage rejection ST-BY2 fo = 120-10kHz, VBAT = 14V with 1.0Vp-p AC, fo = 20-20kHz, VBAT = 14V with 1.0Vp-p AC 50 45 dB dB 10V/40mA REG1 output VREG1 Output voltage IREG1 = 40mA 9.50 10 10.5 V ΔV line Line regulation 11.4V ≤ V BAT≤ 18V (measure Δ VREG1 across VBAT range) 55 mV ΔV load Load regulation 5mA ≤ I REG1 ≤ 40mA 55 mV VDROPOUT Dropout voltage (measure VBAT - VREG1 when VREG1 drops 0.1V) IREG1 = 40mA IREG1 = 5mA 1200 300 mV mV Ilim1 Current limit 60 200 mA SVR Supply voltage rejection (guaranteed by characterization- test at 1kHz with 50dB Limit) 50 dB 8.5V/200mA REG2 output VREG2 Output voltage IREG2 = 200mA 8.3 8.5 8.7 V ΔV line Line regulation 9.6V ≤ V BAT ≤ 18V (measure Δ VREG2 across VBAT range) 50 mV ΔV load Load regulation 5mA ≤ I REG2 ≤ 200mA 50 mV VDROPOUT Dropout voltage (measure VBAT - VREG2 when VREG2 drops 0.1V) IREG2 = 200mA IREG2 = 5mA 1100 600 mV mV Ilim2 Current limit 225 525 mA SVR Ripple rejection (guaranteed By characterization-test at 1kHz with 50dB limit) 50 dB 3.3V/850mA REG3 output VREG3 Output voltage IREG3 = 850mA 3.14 3.46 V ΔV line Line regulation 7V ≤ V BAT ≤ 18V (Measure Δ VREG2 Across VBAT range) 40 mV ΔV load Load regulation 5mA ≤ I REG3 ≤ 850mA 100 mV VDROPOUT Dropout voltage (measure VBAT - VREG3 when VREG3 drops 0.1V) IREG3 = 850mA IREG3 = 5mA 3.46 2.86 V V Table 4. Electrical characteristics (continued) (Refer to the application circuit, Vbat =Vbat1+Vbat2+Vbat3= 14V, IST-BY1 = 0.5mA, IST-BY2 = 0.5mA, IREG1 = IREG2 = IREG3 = IREG4 = IREG5 = IREG6 = 5mA, RHSD1 = RHSD2 = RHSD3 = 16Ω) Symbol Parameter Test condition Min. Typ. Max. Unit |
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