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L5950 Datasheet(PDF) 3 Page - STMicroelectronics |
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L5950 Datasheet(HTML) 3 Page - STMicroelectronics |
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3 / 8 page  ELECTRICAL CHARACTERISTICS (Refer to the application circuit, VS = 14.4V; Tamb = 25°C; unless otherwise specified.) Symbol Parameter Test Condition Min. Typ. Max. Unit Iq,ST-BY Standby Quiescent Current All Outputs Off, VBAT = 14V 2 µA Iq Maximum Quiescent Current VBAT = 14V, IREG1 = 350mA, IREG2 = 175mA, IREG3 = 350mA, IREG4 = 1A, IREG5 = 250mA, IHSD1 = 2A, IHSD2,3 = 450mA 150 mA IEN Enable Input Current VBAT = 14V, Enable ≥ 2V VBAT = 14V, Enable ≥ 0.8V -10 10 µA µA VIL, VIH Enable Threshold Voltage VBAT = 14V, VIL VBAT = 14V, VIH 2 0.8 V V 10V/350mA REG 1 OUTPUT VREG1 Output Voltage IREG1 = 350mA 11V ≤ VCC ≤ 16V 9.50 10 10.5 V ∆Vline Line Regulation 11V ≤ VCC ≤ 26V (Measure ∆ VREG1 Across VCC Range) 55 mV ∆Vload Load Regulation 5mA ≤ IREG1 ≤ 350mA 55 mV VDROPOUT Dropout Voltage (Measure VBAT- VREG1 when VREG1 drops 0.1V) (Measure VBAT- VREG1 when VREG1 drops 0.1V) IREG1 = 350mA IREG1 = 5mA 900 300 mV mV Ilim1 Current Limit 0.51 1.1 A SVR Ripple Rejection fo = 1kHz, VBAT = 14V with 1Vpp AC IREG1 = 175mA 50 dB 8.5V/175mA REG 2 OUTPUT VREG2 Output Voltage IREG2 = 175mA 9.5V ≤ VBAT ≤ 16V 8.3 8.5 8.7 V ∆Vline Line Regulation 9.5V ≤ VBAT ≤ 26V (Measure ∆ VREG2 Across VBAT Range) 50 mV ∆Vload Load Regulation 5mA ≤ IREG2 ≤ 175mA 50 mV VDROPOUT Dropout Voltage (Measure VBAT- VREG2 when VREG2 drops 0.1V) IREG2 = 175mA IREG2 = 5mA 900 300 mV mV Ilim2 Current Limit 280 525 mA SVR Ripple Rejection fo = 1kHz, VBAT = 14V with 1Vpp AC IREG2 = 100mA 50 dB 5V/350mA REG 3 OUTPUT VREG3 Voltage Offset from VREF 10 40 mV ∆Vline Line Regulation 7V ≤ VBAT ≤ 26V (Measure ∆ VREG3 Across VBAT Range) 40 mV ∆Vload Load Regulation 5mA ≤ IREG3 ≤ 350mA 100 mV L5950 3/8 |
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