1.5A USB-Friendly Li-Ion Battery Charger and Power-Path Management IC with 4.2 VBAT The BQ24075TRGTR (from Texas Instruments) is a highly integrated single-cell Li-Ion / Li-Polymer linear battery charger IC with power-path management. It is designed for portable and space-constrained applications, allowing a device to be powered from a USB port or AC adapter while simultaneously charging the battery. The device integrates charging control, power-path management, and safety features into a compact package. A key feature is its Dynamic Power Path Management (DPPM), which ensures the system is powered even when the battery is low or absent, while intelligently managing charging current. Key Features Battery Charging Supports single-cell Li-Ion / Li-Polymer batteries Up to 1.5 A programmable charge current Three-phase charging: Pre-charge (conditioning) Constant current Constant voltage Fixed 4.2 V charge voltage Power Path Management Dynamic Power Path Management (DPPM): Powers system and charges battery simultaneously Prioritizes system load over charging Allows system operation even with: Deeply discharged battery No battery connected Input & Power Features Operates from: USB input (100 mA / 500 mA selectable) AC adapter Programmable input current limit up to 1.5 A Input voltage range: ~4.35 V to 6.4 V (28 V max rating) Input dynamic power management (VIN-DPM) prevents source overload Protection & Safety Thermal regulation and shutdown Over-voltage protection (OVP) Short-circuit and reverse current protection Battery temperature monitoring (NTC thermistor input) Battery disconnect (SYSOFF) feature Control & Status Standalone operation (no MCU required, resistor-programmable) Charge status outputs: Charging Charge complete Power good Physical Characteristics Package: 16-pin VQFN (3 mm × 3 mm) Operating temperature: –40°C to +85°C #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

NTC Thermistor 10kOHM 3977K Bead #commonpartslibrary #thermistor

NTC Thermistor 10k 0201 (0603 Metric) #commonpartslibrary #crystal #oscillator

NTC Thermistor 10k 3380K 0201 (0603 Metric) #commonpartslibrary #crystal #oscillator

NTC Thermistor 4.7k 0603 (1608 Metric) #commonpartslibrary #ntc #thermistor #sensor #temperature #transducer #NTCS0603E

NTC Thermistor 10k Disc, 4.5mm Dia x 4.5mm W #commonpartslibrary #thermistor

NTC Thermistor 47k 0402 (1005 Metric) #CommonPartsLibrary #Sensor #Temperature-sensor #Transducer #Thermistor

NTC Thermistor 47k 0603 (1608 Metric) #commonpartslibrary #ntc #thermistor #sensor #temperature #transducer

NTC Thermistor 470k 0402 (1005 Metric) #CommonPartsLibrary #Sensor #Transducer #Temperature-Sensor

THERMISTOR NTC 10KOHM 3380K 0603

NTC Thermistor 10k 0603 (1608 Metric) NTC Thermistor 10k 0603 (1608 Metric)

Resistors 0402 NTC Thermistor 10k 0402 (1005 Metric)

The HOTCHIP HT4936S is a sophisticated mobile power management integrated circuit designed by Hotchip, optimized for portable power solutions that require efficient charging and power management capabilities. This advanced component integrates features for charging and discharging through a common port, automatic load detection for boost startup and shutdown, four-light battery level indication, and a low battery alert functionality. The HT4936S stands out for its ability to manage 1A input/output with minimal external components, leveraging synchronous rectification to enhance efficiency and reduce thermal footprint. Additionally, it supports a versatile charging protocol accommodating both 4.20V and 4.35V batteries, and is packaged in a compact SOP16 form factor, ensuring a low-cost, space-efficient solution for a wide range of mobile power applications including power banks, backup power supplies, and lithium battery chargers. It incorporates protection features against battery overcharge, over-discharge, and thermal overload, thereby ensuring reliable operation across a range of conditions. Furthermore, the HT4936S facilitates direct LED drive and includes an NTC thermistor input for temperature monitoring, making it an all-encompassing solution for power management in consumer electronics.

NTC Thermistor 100kOHM 4250K 0603 (1608 Metric) #commonpartslibrary #ntc #thermistor #sensor #temperature #transducer