LTC1729CMS8-4.2 Linear Technology, LTC1729CMS8-4.2 Datasheet
LTC1729CMS8-4.2
Specifications of LTC1729CMS8-4.2
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LTC1729CMS8-4.2 Summary of contents
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... The LTC1729 termi- nation controllers are also compatible with step-down/ step-up (SEPIC) chargers, including the LT1512 (2A switch) and LT1513 (3A switch). The LTC1729 series is available in the 8-pin MSOP and SO packages. , LTC and LT are registered trademarks of Linear Technology Corporation LT1510-5 6 ...
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... SENSE Pin C/10 Offset C10 2 U (Note 1) STATUS .................................................... – 0.3V to 30V Operating Temperature Range .................... Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec)................. 300 ORDER PART NUMBER LTC1729CMS8-4.1 OVP 1 LTC1729CMS8-4.2 LTC1729CMS8-8.2 BAT 2 LTC1729CMS8-8.4 SENSE 3 GND 4 MS8 PART MARKING 8-LEAD PLASTIC SO LTLY T JMAX LTJH LTLZ ...
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ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are T SYMBOL PARAMETER I NTC Pin Current NTC V Thermistor Pin Reset Threshold NTC-RESET V Thermistor Pin Hot Hold Threshold NTC-HOT V Thermistor Pin ...
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LTC1729 Series ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are (Note 2) SYMBOL PARAMETER AC CHARACTERISTICS TIMER1 Timer for Trickle-Charge Preconditioning TIMER2 Timer for Charging TIMER3 Timer ...
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CTIO S OVP (Pin 1): Connection to an Internal Precision Resistor Divider Used as a Voltage Feedback Monitor for Constant- Voltage Mode Charging. BAT (Pin 2): Input to Battery Monitor Circuits and OVP Resistor Divider. ...
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LTC1729 Series W BLOCK DIAGRA 3 SENSE 100 A – COMP1 + 1.3mA BAT 2 UVLO M1 2.465V OVP 1 100 A COMP4 + NTC 5 – 2.79V COMP5 + 0.405V – COMP6 + 0.2V – 6 UVLO 12mA COMP2 ...
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U U APPLICATIO S I FOR ATIO Overview The LTC1729 is a charge termination controller for the LT1505/LT1510/LT1511/LT1512/LT1513/LT1769 con- stant-voltage/constant-current battery charger family. Table 1 details these chargers. The primary function of this stop the charger after ...
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LTC1729 Series U U APPLICATIO S I FOR ATIO For a battery that has been deeply discharged, the LTC1729 provides a 12mA start-up current. This preconditioning trickle charge begins when the battery voltage drops below 2.7V/cell. Comparator COMP3 is used ...
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U U APPLICATIO S I FOR ATIO State Machine The state machine is responsible for the following items: 1. When to start and stop the charger. The internal timer must be initialized every time a new battery is installed or ...
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LTC1729 Series U U APPLICATIO S I FOR ATIO Second, if the battery is removed from the charger, the V signal is activated as mentioned in the Block Dia- MAX gram section. This causes the state machine to make the ...
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U U APPLICATIO S I FOR ATIO the NTC pin will float soon as the Status pull-down is open. This will force the state machine into the Hold mode. The V pin is pulled low which turns ...
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LTC1729 Series U TYPICAL APPLICATIO S L1 28V + ON/OFF S/S LT1512 GND 470 C5 0.1 F LTC1729-8.4 OVP ...
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U TYPICAL APPLICATIO S TO SYSTEM DBODY LOAD 0.025 Si4435 IN (FROM + C * ADAPTER 35V CC 500 1 F CLN CLP R5 3k INFET UV SYNC R6 5.1k ...
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LTC1729 Series PACKAGE DESCRIPTIO 0.007 (0.18) * DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD ...
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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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... Programmable Timer, C/10 Flag, AC Power Good, 10-Pin MSOP LT1505 Charger Functionality with SMBus Control 28-Pin SSOP Package D1 R1 SS24 INPUT POWER 11.5V TO 28V R S4 0.05 TO MAIN SYSTEM LOAD SS24 R6 5.1K R PROG 4.93k R7 1.4k † D5 1729 TA04 SENSE 1729f LT/LCG 0800 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1999 ...