LTC1730ES8-4.2 Linear Technology, LTC1730ES8-4.2 Datasheet
![IC BATT PULSE CHRGR LI-ION 8SOIC](/photos/7/34/73467/ltc1730es8-4_2_sml.jpg)
LTC1730ES8-4.2
Specifications of LTC1730ES8-4.2
Available stocks
Related parts for LTC1730ES8-4.2
LTC1730ES8-4.2 Summary of contents
Page 1
... The LTC1730-4 is available in the 16-pin SSOP package and the LTC1730-4.2 is available in the 8-pin SO package. , LTC and LT are registered trademarks of Linear Technology Corporation. = 4.5V TO 12V LTC1730ES8-4.2 4.1k 7 GATE 3 CHRG 1 SENSE 8 6 NTC/SHDN BAT R4 ...
Page 2
... C, JMAX The denotes the specifications which apply over the full operating = unless otherwise noted CONDITIONS Charger On; Fast Charge Mode Shutdown NTC/SHDN Sleep Mode BAT LTC1730ES8-4.2 (5V V 12V) CC LTC1730EGN-4 (5V V 12V), SEL = GND CC LTC1730EGN-4 (5V V 12V), SEL = 0.1 SENSE BAT (V – V ...
Page 3
DC ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER I CHRG Pin Pull-Down Current CHRG T TIMER Accuracy TIMER V GATE Pin Voltage GATE T Thermal Shutdown Temperature SHDN T Thermal Shutdown Hysteresis SHDN V Recharge Battery ...
Page 4
LTC1730-4/LTC1730-4 TYPICAL PERFOR A CE CHARACTERISTICS Trickle Charge Current vs Input Supply Voltage (V) CC 1730 G01 ...
Page 5
... If the voltage at the BAT pin drops 150mV below final float voltage after the charge cycle has ended, the timer resets and a new charge cycle begins. LTC1730EGN-4 GND (Pins 16): Refer to LTC1730ES8-4.2 SENSE (Pin 2): Refer to LTC1730ES8-4.2 V (Pin 3): Refer to LTC1730ES8-4.2 CC ACPR (Pin 4): Wall Adapter Present Open-Drain Output. ...
Page 6
... TIMER (Pin 10): Refer to LTC1730ES8-4.2 NTC/SHDN (Pin 11): Refer to LTC1730ES8-4.2 SEL (Pin 12): 4.1V/4.2V Battery Selection Input. Ground- ing this pin will set the output float voltage to 4.1V, while connecting to V GATE (Pin 13): Refer to LTC1730ES8-4.2 BAT (Pin 15): Refer to LTC1730ES8-4.2 40mV C/10 STOP I MAX C4 ...
Page 7
U OPERATIO The LTC1730 is a complete lithium-ion battery pulse charger with an internal 0.35 N-MOSFET switch driven by an internal charge pump. The charge current is set by the current limit of the input supply (wall adapter). An external ...
Page 8
LTC1730-4/LTC1730-4 APPLICATIO S I FOR ATIO Stop Charging The charger is off when any of the following conditions exist. The voltage at the V pin is less than 40mV above CC V (sleep mode), or the potential at ...
Page 9
U U APPLICATIO S I FOR ATIO End-of-Charge (C/10) The LTC1730 includes a comparator to monitor the duty cycle at the GATE pin to detect a near end-of-charge condition. When the duty cycle falls below 10%, the comparator trips and ...
Page 10
LTC1730-4/LTC1730-4 APPLICATIO S I FOR ATIO Surface mount packages rely primarily on the copper leads (pins) to conduct the heat from the package to the sur- rounding PC board copper which is acting as a heat sink. The ...
Page 11
... 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. ...
Page 12
... SEL 1, 8, 9,16 GND TIMER 0.1 F Using External N-MOSFET for Higher Charge Current 12V WITH 2A CURRENT LIMIT 10k LTC1730ES8-4.2 0.047 SENSE 3 7 CHRG GATE 6 8 NTC/SHDN BAT 0.022 F R3 10k NTC* TIMER GND TIMER 0.1 F COMMENTS CC/CV Charges Li-Ion Cells, 8-Lead MSOP Stand Alone Charger, Automatic Battery Detection, 10-Lead MSOP Most Compact ...