LTC1473LCGN Linear Technology, LTC1473LCGN Datasheet
LTC1473LCGN
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LTC1473LCGN Summary of contents
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... A unique “2-diode” logic mode ensures system start-up regardless of which input receives power first. , LTC and LT are registered trademarks of Linear Technology Corporation. PowerPath is a trademark of Linear Technology Corporation. 3.3V to 4-Cell NiMH Backup Switch LTC1473L ...
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... GS SAB1 SAB2 C = 1000pF (Note 6) GS SAB1 SAB2 C = 1000pF (Note 6) GS SAB1 SAB2 U W ORDER PART NUMBER 16 GA1 15 SAB1 14 GB1 LTC1473LCGN + 13 SENSE – 12 SENSE 11 GA2 GN PART MARKING 10 SAB2 9 GB2 1473L = 150 MIN TYP MAX 2.8 9 – 100 200 7.5 8.5 9 ...
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ELECTRICAL CHARACTERISTICS Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note calculated from the ambient temperature T J dissipation P according to the following formula ...
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LTC1473L W U TYPICAL PERFOR A CE CHARACTERISTICS Turn-Off Delay and Gate Fall Time vs Temperature 2 2 1000pF LOAD SAB 1.8 GATE FALL 1.6 TIME 1.4 1.2 TURN-OFF DELAY 1.0 ...
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CTIO S IN1 (Pin 1): Logic Input of Gate Drivers GA1 and GB1. IN1 is disabled when IN2 is high or DIODE is low. During 2-diode mode, asserting IN1 disables the fault timer function. IN2 ...
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LTC1473L CTIO S GB1, GA1 (Pins 14, 16): Switch Gate Drivers. GA1 and GB1 drive the gates of the first back-to-back external N-channel switches CTIO AL DIAGRA IN1 1 IN2 2 DIODE ...
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U OPERATIO The LTC1473L is responsible for low-loss switching and isolation for a dual supply system, where during a power backup situation, a battery pack can be connected or disconnected seamlessly. Smooth switching between in- put power sources is accomplished ...
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LTC1473L U U APPLICATIO S I FOR ATIO After the transition period, the V of both MOSFETs in the GS selected switch pair rises to approximately 5.6V. The gate drive is set at 5.6V to provide ample overdrive for logic- ...
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U U APPLICATIO S I FOR ATIO The back-to-back topology also allows for independent control of each half of the switch pair which facilitates bidirectional inrush current limiting and the so-called “2-diode mode” described in the following section. The 2-Diode ...
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LTC1473L U U APPLICATIO S I FOR ATIO power dissipated in the switches is never allowed to rise above the manufacturers’ recommended level. Inrush Current Sense Resistor, R SENSE A small valued sense resistor (current shunt) is used by the ...
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U U APPLICATIO S I FOR ATIO V Regulator Inductor and Capacitors GG The V regulator provides a power supply voltage signifi- GG cantly higher than either of the two main power source voltages to allow the control of N-channel ...
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LTC1473L U TYPICAL APPLICATIO S C3 L1A C2** 25V 22 F MBRS130LT3 SYNC ® LT 1512 AND/OR S/S FB L1B* SHDN GND GND 47.55k C5 0.1 F ...
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U TYPICAL APPLICATIO S 2-Cell Li-Ion to 5V/3.5A DC/DC Converter with Battery Charger and Automatic Switchover Between Battery and DCIN C OSC 51pF 33k 220pF 470pF C1 ...
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LTC1473L U TYPICAL APPLICATIO S DCIN 3.3V R1 1.65M LTC1442 1.13M 6 1% – – 1.182V 2 DCIN 3.3V BAT54C C TIMER 550pF DCIN 5V 14 ...
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... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... Si9926DY LTC1473L 1 16 IN1 GA1 2 15 SAB1 IN2 DIODE GB1 0.033 TIMER SENSE – V SENSE GA2 SAB2 8 9 GND GB2 Q2 Si9926DY 1473 • TA02 36V, Fault Protection IN from 2V to 10V IN 1473lf LT/TP 1099 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1999 OUT ...