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LT1432CN8 Datasheet(PDF) 5 Page - Linear Technology |
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LT1432CN8 Datasheet(HTML) 5 Page - Linear Technology |
5 / 28 page 5 LT1432 Restart Load Current CC HARA TERISTICS A TYPICALPERFOR CE No Load Battery Current in Burst Mode BATTERY VOLTAGE (V) 0 3 4 5 20 LT1432 G09 2 1 0 5 10 15 25 TJ = 25°C JUNCTION TEMPERATURE (°C) 0 2000 3000 100 LT1432 G12 1000 40 25 50 75 4000 Gm = ∆I(VC PIN) ∆VOUT Transconductance – VOUT to VC Current Line Regulation Burst Mode Load Regulation 0 0 20 20 LT1432 G13 –20 –40 5 10 15 40 BURST MODE NORMAL MODE INPUT VOLTAGE (V) TJ = 25°C LOAD CURRENT (mA) 0 –25 0 80 –50 –75 20 40 60 100 25 LT1432 G14 TJ = 25°C Mode Pin Current JUNCTION TEMPERATURE (°C) 0 20 30 100 LT1432 G16 10 0 25 50 75 40 VOUT = 4.5V Restart Time Delay JUNCTION TEMPERATURE (°C) 0 2 3 100 LT1432 G16 1 0 25 50 75 4 Startup Switch Characteristics BATTERY VOLTAGE (V) 0 1.0 1.5 20 LT1432 G10 0.5 0 5 10 15 25 2.0 * TO CALCULATE TOTAL BATTERY CURRENT IN BURST MODE, MULTIPLY LOAD CURRENT BY INCREMENTAL FACTOR AND ADD NO-LOAD CURRENT. TJ = 25°C Incremental Battery Current * in Burst Mode MODE PIN VOLTAGE (V) 0 20 40 60 8 LT1432 G15 0 –20 –40 2 4 6 10 MODE DRIVE MUST SINK ≈ 30µA AT 0V TJ = 25°C V+ TO VIN VOLTAGE –2 –20 0 5 20 LT1432 G18 –40 –60 –80 –1 0 10 30 TJ = 25°C NOTE VERTICAL & HORIZONTAL SCALE CHANGES AT 0,0 |
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