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TPS3421EGDRYR Datasheet(PDF) 3 Page - Texas Instruments |
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TPS3421EGDRYR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 19 page TPS3420 TPS3421 TPS3422 www.ti.com SBVS211A – AUGUST 2012 – REVISED MARCH 2013 ELECTRICAL CHARACTERISTICS All specifications are over the operating temperature range of –40°C < TJ < +125°C and 1.6 V ≤ VCC ≤ 6.5 V, unless otherwise noted. Typical values are at TJ = +25°C and VCC = 3.3 V. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VCC Input supply range 1.6 6.5 V VCC = 3.3 V 250 nA TPS3421, VCC = 6.5 V, –40°C < TJ < +85°C 1 µA TPS3422 VCC = 6.5 V 3.3 µA Supply current (standby) VCC = 3.3 V 350 nA ICC TPS3420 VCC = 6.5 V, –40°C < TJ < +85°C 1.2 µA VCC = 6.5 V 3.4 µA TPS3420, PB1, PB2 = 0 V, VCC = 6.5 V 6 12 µA Supply current TPS3421 (active timer)(1) TPS3422 PB1, PB2 = 0 V, VCC = 6.5 V 106 136 µA TPS3421, PB1, PB2 0.7 VCC V High-level input TPS3422 VIH voltage TPS3420 PB1, PB2 0.85 V TPS3421, PB1, PB2 0 0.3 VCC V Low-level input TPS3422 VIL voltage TPS3420 PB1, PB2 0 0.3 V PB1 internal pull-up resistance RPB1 65 k Ω (TPS3422) TPS3420 PB1, PB2 = 0 V or VCC –50 50 nA Input current TPS3421 IPB (PB1, PB2) TPS3422 PB1, PB2 = VCC -50 50 nA VCC ≥ 4.5 V, ISINK = 8 mA 0.4 V VOL Low-level output voltage VCC ≥ 3.3 V, ISINK = 5 mA 0.3 V VCC ≥ 1.6 V, ISINK = 3 mA 0.3 V Ilkg(OD) Open-drain output leakage current High impedance, V RST = 6.5 V –0.35 0.35 µA (1) Includes current through pull-up resistor between input pin (PB1) and supply pin (VCC) for TPS3422. TIMING REQUIREMENTS All specifications are over the operating temperature range of –40°C < TJ < +125°C and 1.6 V ≤ VCC ≤ 6.5 V, unless otherwise noted. Typical values are at TJ = +25°C and VCC = 3.3 V. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT –20% 20% TPS3420D: TS = GND 6 7.5 9 s ttimer Push button timer(1) TPS3420D: TS = VCC 10 12.5 15 s TPS3421Ey, TPS3422Ey: TS = GND 6 7.5 9 s TPS3421Ey, TPS3422Ey: TS = VCC 0 s –20% 20% TPS3421xC 64 80 96 ms trst Reset pulse duration TPS3421xG 320 400 480 ms TPS3422xG 320 400 480 ms Detection delay (from input to 150 µs tdd For 0-s ttimer condition RST)(2) Start-up time(2) VCC rising 300 µs (1) For devices with a 0-second delay while TS = VCC, this option is only for factory testing and is not intended for normal operation. In normal operation, the TS pin should be tied to GND. (2) For devices with a 0-second delay when TS = VCC, reset asserts in tdd time when both PB inputs go low in this configuration. During start up, if the PB inputs are low, reset asserts after a start-up time delay. This value is specified by design. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TPS3420 TPS3421 TPS3422 |
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