LTC2954ITS8-2 Linear Technology Corporation, LTC2954ITS8-2 Datasheet
LTC2954ITS8-2
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LTC2954ITS8-2 Summary of contents
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... LTC2954 ideally suited for battery powered applications. Two versions of the part are available to accommodate either positive or negative enable polarities. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners ...
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... EN/EN PDT KILL ORDER PART NUMBER LCJG LTC2954CTS8-1 LCNJ LTC2954CTS8-2 LCJG LTC2954ITS8-1 LCNJ LTC2954ITS8-2 ● The denotes the specifi cations which apply over the full operating = 25° 2.7V to 26.4V, unless otherwise noted. (Note CONDITIONS Steady State Operation System Power On 2.7V to 24V ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER ⎯ P ⎯ B Input Current I ⎯ P ⎯ B ⎯ P ⎯ B Input Threshold V ⎯ P ⎯ B (VTH) ⎯ P ⎯ B Open ...
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LTC2954 W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Temperature 26 – –25 TEMPERATURE (°C) 2954 G01 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS ⎯ P ⎯ B Current vs ⎯ P ⎯ B Voltage –250 –200 –150 –100 –50 0 –10 – VOLTAGE (V) EN/ ⎯ E ⎯ Current Load ...
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LTC2954 CTIO S (TSOT-23/DFN) V (Pin 1/Pin 4): Power Supply Input: 2.7V to 26.4V. IN ⎯ P ⎯ B (Pin 2/Pin 3): Push Button Input. Connecting ⎯ P ⎯ ground through a momentary ...
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W BLOCK DIAGRA 1. 2.7V TO 26.4V 29V 2.4V ZENER 100k PB 0.8V GND DIAGRA S REGULATOR 2.4V OSCILLATOR 10µS DEBOUNCE FILTER ONT t KILL(PW) KILL t KILL(PD) EN/EN LTC2954 HIGH VOLTAGE ...
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LTC2954 DIAGRA S PB ONT EN (LTC2954-1) PB PDT INT Off Interrupt Timing, ⎯ P ⎯ B Pressed and Released, Enable Remains Active PB PDT INT EN (LTC2954-1) Forced Off, Power Down Timing, ⎯ ...
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U U APPLICATIO S I FOR ATIO Description The LTC2954 is a push button On/Off controller that pro- vides control of system power via a push button interface. An enable output toggles system power while an interrupt output provides debounced ...
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LTC2954 U U APPLICATIO S I FOR ATIO DB, ON ONT t ONT PDT INT KILL XXX DON'T CARE EN Figure 1. Simplifi ed Power On/Off Sequence for LTC2954-1. μP Asserts ⎯ K ⎯ I ⎯ ...
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U U APPLICATIO S I FOR ATIO low 512ms after it went high. Note that the LTC2954 does not sample ⎯ K ⎯ I ⎯ L ⎯ L and ⎯ P ⎯ B until after the 512ms internal timer has ...
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LTC2954 U U APPLICATIO S I FOR ATIO LTC2954-1, LTC2954-2 Versions The LTC2954-1 (high true EN) and LTC2954-2 (low true ⎯ E ⎯ differ only by the polarity of the high voltage (33V ABS MAX), enable pin. The ...
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U TYPICAL APPLICATIO S capacitor extends the length of time (beyond 64ms) that the ⎯ P ⎯ B input must be held low before releasing the enable output. High Voltage Power Path Switching The high voltage ⎯ E ⎯ N ...
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LTC2954 U TYPICAL APPLICATIO S External Pull-Up Resistor on ⎯ P ⎯ internal pull-up resistor on the ⎯ P ⎯ B pin makes an ex- ternal pull-up resistor unnecessary. Leakage current on the ⎯ P ⎯ B board ...
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... MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. U DDB Package 8-Lead Plastic DFN (3mm × ...
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... Power Down Fault Detect ⎯ K ⎯ I ⎯ L ⎯ L Timer No External MOSFET, Automatic Switching Between DC Sources Effi cient Diode-ORing, Automatic Switching Between DC Sources 36V Wide Input Range: 1.2V to 18V ● www.linear.com V OUT 1.8V R1 10k INT µP KILL 2954 TA02 LT 0107 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2006 2954fa ...