LP4068HB5F

LP4068H 36V/800mA Standalone Single-Cell Linear Charger General Description Features ⚫ Easy-to-use standalone single-cell charger The LP4068H device is a highly advanced linear charger ⚫ High input voltage linear charger for single-cell Li-Ion and Li-Polymer batteries. The device - Support up to 7V input voltage with 36V absolute maximum input rating Maximum BAT withstand voltage up to 14V Programmable up to 800mA fast charge current Trickle current 10% of fast charge current Termination current 10% of fast charge current High integration ⚫ - is ideally suited for portable applications due to the small SOT23-5 and low number of external components required. The device employs a full charge algorithm with trickle current, constant current (CC), constant voltage (CV) modes, charge termination and automatic recharge. The device Integrated reverse blocking MOSFET Built-in charge current sensing Internal loop compensation Integrated charge status indication package supports charge current up to 800mA, programmed by an external resistor. The device can withstand an input voltage up to 36V, which can protect the charger from the accidental insertion of high voltage and hot plug-in. The device can withstand a BAT voltage Support full charge cycle of trickle current mode, constant current (CC) mode, constant voltage (CV) mode, charge termination and automatic recharge ⚫ ⚫ BAT leakage current 30nA typical ⚫ Protection features - up to 14V, which is suited for power battery applications. Without an input supply, the battery reverse current is only 30nA typical. The device provides various safety features for battery charging, including input under voltage lockout (UVLO), Input under-voltage lockout (UVLO) Over-voltage protection (OVP) Battery reverse connection protection Thermal regulation foldback ⚫ RoHS Compliant and 100% Lead (Pb)-Free ⚫ Package: SOT23-5 input over-voltage protection (OVP), battery reverse connection protection, and thermal regulation foldback protection that is implemented by reducing the charge current while the junction temperature reaches 140℃. The LP4068H is available in a SOT23-5 package. Order Information LP4068H Applications ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ Wireless Speaker Cordless Power Tools Gaming Devices Portable Media Players Handheld Battery-Powered Devices Charging Docks and Cradles Power Bank E-Cigarettes Battery Voltage Default:4.20V 405:4.05V F: Pb-Free Package Type B6: SOT23-6 LP4068H Rev0.5 www.lowpowersemi.com Email: marketing@lowpowersemi.com Sep.2023 Page 1 of 15 LP4068H Device Information Part Number Top Marking LP4068 YWXA0 LPS BcYWX LP4068HB5F LP4068HB5F-405 Battery Voltage Moisture Sensitivity Level Package Shipping 4.20V MSL3 SOT23-5 3K/REEL 4.05V MSL3 SOT23-5 3K/REEL Marking indication: Y: Production year. W: Production week. X: Series number. Typical Application Circuit VIN VBAT IN RIN 4.7Ω (0603) R1 2kΩ BAT COUT 1-10μF LP4068H Battery CHRG CIN LED1 ISET 1-10μF RISET GND LP4068H Rev0.5 www.lowpowersemi.com Email: marketing@lowpowersemi.com Sep.2023 Page 2 of 15 LP4068H Pin Diagram SOT23-5 (Top View) CHRG 1 ISET 5 GND 2 BAT IN 3 4 Pin Description Pin Name Description Open-Drain Charge Status Output. When the device is in charging state, the 1 CHRG CHRG pin is pulled low by an internal NMOS. When the charge cycle is completed, the internal NMOS turned-off, the pin could be pulled high by an external pull-up resistor. 2 GND GND. Connect to the system ground. 3 BAT Battery Pin. Connect to the battery, A 1-10µF capacitor is needed typically. Positive Supply Voltage Input. Place a 4.7Ω resistor and a 1-10µF ceramic 4 IN capacitor in series from IN to GND and place the components as close as possible to IC. 5 ISET Fast Charge Current Program Pin. Connect this pin with an external resistor RISET to GND to program the fast charge current. LP4068H Rev0.5 www.lowpowersemi.com Email: marketing@lowpowersemi.com Sep.2023 Page 3 of 15 LP4068H Absolute Maximum Ratings (1) ⚫ IN to GND -------------------------------------------------------------------------------------------------------- -0.3V to 36V ⚫ CHRG to GND -------------------------------------------------------------------------------------------------- -0.3V to 28V ⚫ BAT to GND -------------------------------------------------------------------------------------------------------- -5V to 14V ⚫ ISET to GND ----------------------------------------------------------------------------------------------------- -0.3V to 6.5V ⚫ Maximum Junction Temperature (TJ) ----------------------------------------------------------------------------- 150℃ ⚫ Storage Temperature -------------------------------------------------------------------------------------- -55℃ to 150℃ ⚫ Maximum Soldering Temperature (at leads, 10 sec) --------------------------------------------------------- 260℃ Note: (1) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD Susceptibility ⚫ HBM (Human Body Model) --------------------------------------------------------------------------------------------- 2kV ⚫ MM (Machine Model) -------------------------------------------------------------------------------------------------- 200V Recommended Operating Conditions ⚫ Input Voltage ------------------------------------------------------------------------------------------------------ 4.5V to 6V ⚫ Maximum Charge Current ------------------------------------------------------------------------------------------ 800mA ⚫ Operating Junction Temperature Range (TJ) --------------------------------------------------------- -20℃ to 140℃ ⚫ Operating Ambient Temperature Range (TA) --------------------------------------------------------- -20℃ to 85℃ LP4068H Rev0.5 www.lowpowersemi.com Email: marketing@lowpowersemi.com Sep.2023 Page 4 of 15 LP4068H Electrical Characteristics (The specifications are at TA=25℃, VIN = 5V, unless otherwise noted.) Symbol Parameter Condition Min Typ Max Units 4.5 5 6 V INPUT VOLTAGE AND CURRENT VIN Input Voltage Range IStandby Input Standby Current Standby mode (Charge terminated) VUVLO Under Voltage Lockout of VIN VIN Rising VUVLO_HYS VOVP VUVLO Hysteresis Over-Voltage Protection Threshold Voltage VIN Falling OVP Hysteresis VIN Falling VOVP_HYS VIN Rising 190 3.3 3.5 μA 3.7 V 200 6.7 7 mV 7.3 V 300 mV BATTTERY CHARGER VFLOAT ICC Regulated Output Voltage Fast Charge Current LP4068HB5F 4.179 4.2 4.24 V LP4068HB5F-405 4.01 4.05 4.09 V RISET=3.4kΩ, Constant Current Mode 450 500 550 mA RISET=17kΩ, Constant Current Mode 90 100 110 mA ITERM Termination Current Threshold RISET=3.4kΩ, Constant Voltage Mode 10% ICC ITRIKL Trickle Charge Current VBAT