LTC1473CGN Linear Technology, LTC1473CGN Datasheet
LTC1473CGN
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LTC1473CGN Summary of contents
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... MOSFET switches are in current limit and latches them off when the programmed time is exceeded. A unique “2-diode mode” logic 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. MBRD340 Si9926DY ...
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... (Note 4) GS SAB1 SAB2 C = 1000pF 20V (Note 4) GS SAB1 SAB2 U W INFORMATION ORDER PART TOP VIEW NUMBER 16 GA1 15 SAB1 14 GB1 LTC1473CGN + 13 SENSE LTC1473IGN – 12 SENSE 11 GA2 GN PART MARKING 10 SAB2 9 GB2 1473 GN PACKAGE 1473I = 125 C, = 150 MIN TYP MAX 4.75 – ...
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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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LTC1473 W U TYPICAL PERFORMANCE CHARACTERISTICS Turn-Off Delay and Gate Fall Time vs Temperature 2 20V 2 1000pF LOAD V = 20V SAB 1.8 GATE FALL 1.6 TIME 1.4 TURN-OFF 1.2 DELAY 1.0 0.8 0.6 ...
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PIN FUNCTIONS IN1 (Pin 1): Logic Input of Gate Drivers GA1 and GB1. IN1 is disabled when IN2 is high or DIODE is low. IN2 (Pin 2): Logic Input of Gate Drivers GA2 and GB2. IN2 is ...
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LTC1473 U U FUNCTIONAL DIAGRA IN1 1 IN2 2 DIODE 5.5 A TIMER 4 TO GATE DRIVERS + GND INRUSH CURRENT SENSE + 900k – 1.20V V ...
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U OPERATION The LTC1473 is responsible for low-loss switching and isolation at the “front end” of the power management system, where up to two battery packs can be connected and disconnected seamlessly. Smooth switching between input power sources is accomplished ...
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LTC1473 U U APPLICATIONS INFORMATION 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 standard logic-level MOSFET switches ...
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U U APPLICATIONS INFORMATION block current flow in either direction when both switches are turned off. 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 ...
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LTC1473 U U APPLICATIONS INFORMATION As a general rule, select the switch with the lowest R and able to withstand the maximum allowable V will minimize the heat dissipated in the switches while increasing the overall system efficiency. Higher switch ...
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U U APPLICATIONS INFORMATION V Regulator Inductor and Capacitors GG The V regulator provides a power supply voltage 8.5V GG higher than any of the three main power source voltages to allow the control of N-channel MOSFET switches. This micropower, ...
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LTC1473 TYPICAL APPLICATIONS Input Power Routing Circuit for Microprocessor Controlled Dual Battery Dual Chemistry System Si9926DY LTC1473 16 GA1 IN1 15 IN2 SAB1 14 DIODE GB1 13 + SENSE TIMER 12 R SENSE – SENSE 0.033 11 V ...
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U TYPICAL APPLICATIONS Complete Front End Including Battery Charger and DC/DC Converter with Automatic Switchover Between Battery and DCIN C OSC 57pF 10k 51pF 330pF C1 C5 ...
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LTC1473 U TYPICAL APPLICATION 5V SUPPLY V1 10k – – 10k SUPPLY V2 *1812LS-105XKBC, COILCRAFT 14 Protected Automatic Switchover Between Two Supplies 1 8 LT1121 ...
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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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... LOGIC SUPPLY 100k SUPPLY V1 5V 100k SUPPLY V2 12V *1812LS-105XKBC, COILCRAFT Hot Swap is a trademark of Linear Technology Corporation. RELATED PARTS PART NUMBER DESCRIPTION LTC1155 Dual High Side Micropower MOSFET Driver LTC1161 Quad Protected High Side MOSFET Driver LTC1473L Dual PowerPath Switch Driver ...