LTC1731EMS8-4.2#TR Linear Technology, LTC1731EMS8-4.2#TR Datasheet
LTC1731EMS8-4.2#TR
Specifications of LTC1731EMS8-4.2#TR
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LTC1731EMS8-4.2#TR Summary of contents
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... Fully discharged cells are automatically trickle charged at 10% of the programmed current until cell voltage exceeds 2.457V. The LTC1731 is available in the 8-pin MSOP and SO packages. , LTC and LT are registered trademarks of Linear Technology Corporation. 500mA Li-Ion Battery Charger ...
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... Operating Temperature Range (Note 2) .....– Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 ORDER PART NUMBER BAT 1 LTC1731EMS8-4.1 CHRG 2 LTC1731EMS8-4.2 TIMER 3 GND 4 MS8 PART MARKING 8-LEAD PLASTIC SO LTJK T LTKQ JMAX The denotes the specifications which apply over the full operating = 25 C ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER V Automatic Shutdown Threshold Voltage ASD V Voltage Mode Disable Threshold Voltage DIS I PROG Pin Current PROG PROG Pin Load Regulation V PROG Pin Voltage PROG I CHRG ...
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LTC1731-4.1/LTC1731-4 TYPICAL PERFOR A CE CHARACTERISTICS Trickle Charge Threshold Voltage vs Temperature 2.470 2.465 2.460 2.455 2.450 –50 – 100 125 150 0 TEMPERATURE ( C) 1731 G04 Battery Charge Current ...
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PIN FUNCTIONS BAT (Pin 1): Battery Sense Input. A bypass capacitor of at least required to keep the loop stable when the battery is not connected. A precision internal resistor divider sets the final ...
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LTC1731-4.1/LTC1731-4.2 W BLOCK DIAGRA CHRG 2 C/10 100 A SHDN TIMER 3 OSCILLATOR C3 BATTERY CURRENT I = (2.457V • 800 )/(R BAT – STOP C/10 720 LOGIC SLP COUNTER V REF + ...
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U OPERATIO The LTC1731 is a linear battery charger controller for single cell lithium-ion batteries. The charge current is programmed by the combination of a program resistor (R ) from the PROG pin to ground and a sense resistor PROG ...
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LTC1731-4.1/LTC1731-4 APPLICATIONS INFORMATION voltage. The DRV pin will then be pulled turn off the external P-channel MOSFET. The internal timer is reset in the shutdown mode. Programming Charge Current The formula for the battery charge ...
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U U APPLICATIONS INFORMATION After an internal time delay of 320ms, this state is then latched. This delay will help prevent false triggering due to transient currents. The end-of-charge comparator is dis- abled in trickle charge mode. Gate Drive Typically ...
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LTC1731-4.1/LTC1731-4.2 PACKAGE DESCRIPTIO 0.007 (0.18) (0.53 0.015) * 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. ...
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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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... Needs Only Two External Components, Monitors Charge Current, No Reverse Diode or Sense Resistor Required MBRS130LT3 0.47 F CER R3 7 0.082 1/4W 4.7 8 SENSE 6 Q2 DRV Si2305DS LTC1693 CDRH6D38-220NC 1 BAT + Li-ION 5 BATTERY R4 18.2k 1% OUT 1731f LT/TP 0301 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1999 CER D1 MBRS130LT3 + C3 100 F 1731 TA03 ...