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LTC2919CDDB-2.5-PBF Datasheet(PDF) 3 Page - Linear Technology |
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LTC2919CDDB-2.5-PBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 16 page  LTC2919 3 2919f The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 2.5V (LTC2919-2.5), VCC = 3.3V (LTC2919-3.3), VCC = 5V (LTC2919-5), ADJ1 = ADJ2 = 0.55V, SEL = floating, unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC(MIN) Operating Supply Voltage RST, OUT1, OUT2 in Correct State ● 0.5 V VCC(SHUNT) VCC Shunt Regulation Voltage ICC = 1mA, IREF = 0 ● 6.0 6.5 7.1 V ICC VCC Input Current 2.175V < VCC < 6V (C-Grade, I-Grade) 2.175V < VCC < 6V (H-Grade) ● ● 50 50 220 280 μA μA VRT ADJ Input Threshold ● 495.0 492.5 500 500 505.0 507.5 mV mV ΔVRT ADJ Hysteresis (Note 4) TMR = VCC 1.5 3.5 10.0 mV IADJ ADJ Input Current VADJ = 0.55V (C-Grade, I-Grade) VADJ = 0.55V (H-Grade) ● ● 0 0 ±15 ±40 nA nA VCC(UVLO) VCC –10% UVLO Threshold LTC2919-2.5 LTC2919-3.3 LTC2919-5 ● ● ● 2.175 2.871 4.350 2.213 2.921 4.425 2.250 2.970 4.500 V V V ΔVCC(UVLO) UVLO Hysteresis (Note 4) TMR = VCC 0.3 0.7 2.0 % VREF Buffered Reference Voltage VCC > 2.175V, IREF = ±1mA ● 0.990 0.985 1.000 1.000 1.010 1.015 V V ITMR(UP) TMR Pull-Up Current VTMR = 1V ● –1.5 –2.2 –2.9 μA ITMR(DOWN) TMR Pull-Down Current VTMR = 1V ● 1.5 2.2 2.9 μA tRST(EXT) Reset Timeout Period, External CTMR = 2.2nF ● 15 20 27 ms tRST(INT) Reset Timeout Period, Internal VTMR = 0V ● 140 200 280 ms VTMR(DIS) Timer Disable Voltage VTMR Rising ● VCC – 0.40 VCC – 0.20 VCC – 0.10 V ΔVTMR(DIS) Timer Disable Hysteresis VTMR Falling ● 40 100 160 mV VTMR(INT) Timer Internal Mode Voltage VTMR Falling ● 0.10 0.20 0.40 V ΔVTMR(INT) Timer Internal Mode Hysteresis VTMR Rising ● 40 100 160 mV tPROP ADJx Comparator Propagation Delay to OUTX ADJx Driven Beyond Threshold (VRTX) by 5mV ● 50 150 800 μs tUV VCC Undervoltage Detect to RST VCC Less Than UVLO Threshold (VCC(UVLO)) by 1% ● 50 150 800 μs VOL Output Voltage Low VCC = 0.5V, I = 5μA VCC = 1V, I = 100μA VCC = 3V, I = 2500μA ● ● ● 0 0 0 0.01 0.01 0.10 0.15 0.15 0.30 V V V IOH Output Voltage High Leakage Output = VCC (C-Grade, I-Grade) Output = VCC (H-Grade) ● ● 0 0 ±1 ±5 μA μA Three-State Input SEL VIL Low Level Input Voltage ● 0 0.4 V VIH High Level Input Voltage ● 1.4 VCC V VZ Pin Voltage when Left in Open State ISEL = 0μA 0.8 0.9 1.0 V ELECTRICAL CHARACTERISTICS |
Similar Part No. - LTC2919CDDB-2.5-PBF |
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Similar Description - LTC2919CDDB-2.5-PBF |
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