ltc1734es6-4.2 Linear Technology Corporation, ltc1734es6-4.2 Datasheet
ltc1734es6-4.2
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ltc1734es6-4.2 Summary of contents
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... The LTC1734 can also function as a general purpose current source current source for charging nickel- cadmium (NiCd) and nickel-metal-hydride (NiMH) batter- ies using external termination. , LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. FMMT549 I ...
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... PROG 4.55V V 8V, Pass PNP Beta > 50 3.5V DRIVE U W INFORMATION ORDER PART NUMBER TOP VIEW LTC1734ES6-4.1 6 DRIVE LTC1734ES6-4.2 5 BAT 4 PROG S6 PART MARKING S6 PACKAGE LTHD = 230 C/W JA LTRG is equal to the float voltage unless BAT MIN TYP MAX 4. 0), 670 ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T otherwise noted. All current into a pin is positive and current out of a pin is negative. All voltages are referenced to GND, unless otherwise specified. SYMBOL PARAMETER Charger Manual Control ...
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LTC1734 W U TYPICAL PERFOR A CE CHARACTERISTICS I vs Temperature BAT2 and Supply Voltage 740 R = 2.15k PROG PNP = FCX589 700 V = 4.55V AND 8V CC 660 – 125 –25 100 TEMPERATURE ...
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PIN FUNCTIONS I (Pin 1): Sense Node for Charge Current. Current SENSE from V passes through the internal current sense resis- CC tor and reappears supply current to the SENSE external PNP emitter. The ...
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LTC1734 U OPERATIO The LTC1734 is a linear battery charger controller. Opera- tion can best be understood by referring to the Block Diagram. Charging begins when V UVLO (Undervoltage Lockout) threshold V external current programming resistor is connected be- tween ...
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U U APPLICATIONS INFORMATION Manual Shutdown Floating the program resistor allows an internal 3 A current source ( pull the PROG pin above the PROGPU 2.15V shutdown threshold (V MSDT the charger. In this mode, the LTC1734 continues ...
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LTC1734 U U APPLICATIONS INFORMATION Programming Constant Current When in the constant current mode, the full-scale charge current (C) is programmed using a single external resistor between the PROG pin and ground. This charge current will be 1000 times greater ...
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U U APPLICATIONS INFORMATION Monitoring Charge Current The voltage on the PROG pin indicates the charge current as a proportion of the maximum current set by the program resistor. The charge current is equal to 1000 • ...
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LTC1734 U U APPLICATIONS INFORMATION Table 1. PNP Pass Transistor Selection Guide Maximum P (W) D Mounted on Board Package Style A 0.5 SOT-23 0.625 SOT-23 1 SOT-89 1.1 SOT-23 SOT-89 2 ...
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... HORIZONTAL SCALE: 100 s/DIV Figure 5. Stability Waveforms 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. W ...
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... See the External JA 2.80 – 3.10 (.110 – .118) (NOTE 3) 2.60 – 3.00 1.50 – 1.75 (.102 – .118) (.059 – .069) (NOTE 3) PIN ONE ID A1 .95 (.037) REF .25 – .50 (.010 – .020) (6PLCS, NOTE 2) sn1734 1734fs LT/TP 0801 2K • PRINTED IN THE USA LINEAR TECHNOLOGY CORPORATION 2001 S6 SOT-23 0401 ...