LTC4219IDHC-12#TRPBF Linear Technology, LTC4219IDHC-12#TRPBF Datasheet
LTC4219IDHC-12#TRPBF
Specifications of LTC4219IDHC-12#TRPBF
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LTC4219IDHC-12#TRPBF Summary of contents
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... L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...
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... ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC4219CDHC-12#PBF LTC4219CDHC-12#TRPBF 421912 LTC4219IDHC-12#PBF LTC4219IDHC-12#TRPBF 421912 LTC4219CDHC-5#PBF LTC4219CDHC-5#TRPBF LTC4219IDHC-5#PBF LTC4219IDHC-5#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER DC Characteristics V Input Supply Range DD I Input Supply Current DD V Input Supply Undervoltage Lockout DD(UVL) V Output Power Good Threshold OUT(PGTH) DV Output Power Good ...
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LTC4219 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER Outputs V INTV Output Voltage INTVCC CC PG, FLT Pin Output Low Voltage V OL PG, FLT Pin Input Leakage Current TIMER Pin High ...
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TYPICAL PERFORMANCE CHARACTERISTICS 2.0 1.8 85°C 1.6 25°C 1.4 –40°C 1.2 1 (V) DD 4219 G01 EN1, EN2 Hysteresis vs Temperature 0.10 0.08 0.06 0.04 –50 –25 0 ...
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LTC4219 TYPICAL PERFORMANCE CHARACTERISTICS I Resistor vs Temperature SET –50 – TEMPERATURE (°C) 4219 G10 PG, FLT V Low vs I OUT LOAD 14 12 FLT ...
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TYPICAL PERFORMANCE CHARACTERISTICS Gate Pull-Up Current vs Gate Drive 3. –5 –10 –15 I GATE Gate Drive vs Temperature 6.15 6.14 6.13 6.12 6.11 6.10 –50 –25 0 ...
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LTC4219 PIN FUNCTIONS EN1: Inverted Enable 1 Input. Ground this pin to enable the MOSFET to turn on after 100ms debounce delay. If the voltage at this pin rises above 1.235V for longer than 10μs a turn-off command is detected, ...
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FUNCTIONAL DIAGRAM INTERNAL 7.5mΩ (EXPOSED PAD) SENSE RESISTOR V DD – CS +– 1.235V EN1 EN1 – + 1.235V EN2 EN2 – – UVLO1 + 2.73V TIMER * 100k (LTC4219-5) 150k (LTC4219-12) ** 40k (LTC4219-5) ...
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LTC4219 OPERATION The Functional Diagram displays the main circuits of the device. The LTC4219 is designed to turn a board’s supply voltage on and off in a controlled manner allowing the board to be safely inserted and removed from a ...
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APPLICATIONS INFORMATION The typical LTC4219 application high availability system that uses a positive voltage supply to distribute power to individual cards. A complete application circuit is shown in Figure 1. External component selection is discussed in detail ...
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LTC4219 APPLICATIONS INFORMATION Adding a capacitor and a 1k series resistor from GATE to ground will lower the inrush current below the default value set by the inrush circuit. The GATE is then charged with a 24μA current source. The ...
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APPLICATIONS INFORMATION Tying the TIMER pin to INTV will force the part to use CC the internally generated (circuit breaker) delay of 2ms. In either case the FLT pin is pulled low to indicate an overcurrent fault has turned off ...
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LTC4219 APPLICATIONS INFORMATION Power Good Indication In addition to setting the foldback current limit threshold, the FB pin is used to determine a power good condition. The LTC4219-12 and LTC4219-5 use an internal resis- tive divider on the OUT pin ...
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APPLICATIONS INFORMATION The power good threshold using the internal resistive divider on the FB pin matches the 10.5V requirement. The fi nal schematic in Figure 5 results in very few external components. The pull-up resistors, R1 and R3, connect to ...
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LTC4219 PACKAGE DESCRIPTION 3.50 ±0.05 1.65 ±0.05 2.20 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS PIN 1 TOP MARK (SEE NOTE 6) 0.200 REF NOTE: 1. DRAWING PROPOSED TO BE MADE VARIATION OF VERSION (WJED-1) IN JEDEC PACKAGE ...
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... Revised 170mA to 140mA in Turn-Off Sequence section of the Applications Infomation 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... Operates from 1V to 13.5V, Multifunction Current Control, SSOP-16 Operates from 1.7V to 16.5V, Multifunction Current Control, SSOP-20 Operates from 2.9V to 18V, 3mm ¥ 3mm DFN-12 www.linear.com ● V OUT 12V 5A LOAD 4219 TA02 , SSOP-20 or SENSE 4219fb LT 1110 REV B • PRINTED IN USA ” LINEAR TECHNOLOGY CORPORA TION 2010 ...