LTC2954ITS8-1#TRMPBF Linear Technology, LTC2954ITS8-1#TRMPBF Datasheet
LTC2954ITS8-1#TRMPBF
Specifications of LTC2954ITS8-1#TRMPBF
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LTC2954ITS8-1#TRMPBF Summary of contents
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... Two versions of the part are available to accommodate either positive or negative enable polarities. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and PowerPath and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...
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... LTC2954CTS8-1 LTC2954CTS8-1#TR LTC2954CTS8-2 LTC2954CTS8-2#TR LTC2954ITS8-1 LTC2954ITS8-1#TR LTC2954ITS8-2 LTC2954ITS8-2#TR Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: For more information on tape and reel specifications, go to: ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER V Supply Voltage Range Supply Current Undervoltage Lockout UVL Undervoltage Lockout UVL(HYST) IN Hysteresis Pushbutton, Enable (PB, EN/EN)) PB ...
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LTC2954 ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: All currents ...
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TYPICAL PERFORMANCE CHARACTERISTICS Internal Default PB Power-Down Debounce Time ( PD,MIN 25° (V) IN 2954 G07 PB Current ...
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LTC2954 PIN FUNCTIONS (TSOT-23/DFN) V (Pin 1/Pin 4): Power Supply Input: 2.7V to 26.4V (Pin 2/Pin 3): Pushbutton Input. Connecting PB to ground through a momentary switch provides on/off control via the EN/EN and INT outputs. An internal ...
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BLOCK DIAGRAM V 1.5k IN 2.7V TO 26.4V 2.4V 100k PB 0.8V GND TIMING DIAGRAMS REGULATOR 2.4V 29V ZENER OSCILLATOR 10μS DEBOUNCE FILTER OSCILLATOR ONT t KILL(PW) KILL t KILL(PD) EN/EN LTC2954 EN (–1) EN (–2) HIGH VOLTAGE KILL LOGIC ...
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LTC2954 TIMING DIAGRAMS PB ONT EN (LTC2954-1) PB PDT INT Off Interrupt Timing, PB Pressed and Released, Enable Remains Active PB PDT INT EN (LTC2954-1) Forced Off, Power-Down Timing, PB Pressed and Held Low for t > ...
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APPLICATIONS INFORMATION Description The LTC2954 is a pushbutton on/off controller that provides control of system power via a pushbutton interface. An enable output toggles system power while an interrupt output provides debounced pushbutton status. The inter- rupt output can be ...
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LTC2954 APPLICATIONS INFORMATION DB, ON ONT t ONT PDT INT KILL XXX DON'T CARE EN Figure 1. Simplified Power On/Off Sequence for LTC2954-1. μP Asserts KILL After an Interrupt POWER-ON TIMING KILL Figure 2. KILL Remaining ...
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APPLICATIONS INFORMATION low 512ms after it went high. Note that the LTC2954 does not sample KILL and PB until after the 512ms internal timer has expired. The reason PB is ignored is to ensure that the system is not forced ...
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LTC2954 APPLICATIONS INFORMATION LTC2954-1, LTC2954-2 Versions The LTC2954-1 (high true EN) and LTC2954-2 (low true EN) differ only by the polarity of the high voltage (33V ABS MAX), enable pin. The LTC2954-1 EN pin is a low leakage high true ...
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TYPICAL APPLICATIONS width detected is 30μs. If there are glitches on the resis- tor pull-up voltage that are wider than 30μs and transition below 0.6V, then an appropriate bypass capacitor should be connected to the KILL pin. The optional C ...
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LTC2954 TYPICAL APPLICATIONS External Pull-Up Resistor internal pull-up resistor on the PB pin makes an ex- ternal pull-up resistor unnecessary. Leakage current on the PB board trace, however, will affect the open circuit voltage on the PB ...
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PACKAGE DESCRIPTION 0.61 ±0.05 (2 SIDES) 0.70 ±0.05 2.55 ±0.05 1.15 ±0.05 PACKAGE OUTLINE 0.25 ± 0.05 0.50 BSC 2.20 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS NOTE: 1. DRAWING CONFORMS TO VERSION (WECD-1) IN JEDEC PACKAGE OUTLINE ...
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LTC2954 PACKAGE DESCRIPTION 0.40 MAX 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ 0.30 – 0.50 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF ...
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... Revised notes for Figures 5 and 6 in Typical Applications 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. ...
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... Wide Input Range: 1.2V to 18V Automatic Low Loss Switchover Between DC Sources High Voltage Pushbutton Controller with 200ms Voltage Reset Monitor ● www.linear.com V OUT 1.8V R1 10k INT μP KILL 2954 TA02 LT 0211 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORA TION 2006 2954fb ...