Texas Instruments Archives - Page 28 of 128

Description

The SN74HC14 is Hex Inverters with Schmitt-Trigger Inputs.

These Schmitt-trigger devices contain six independent inverters. They perform the Boolean function Y = Ain positive logic. The SN54HC14 is characterized for operation over the full military temperature range of –55°C to 125°C. The SN74HC14 is characterized for operation from –40°C to 85°C.

Features

1. Buffered inputs
2. Wide operating voltage range: 2 V to 6 V
3. Wide operating temperature range: -40°C to +85°C
4. Supports fanout up to 10 LSTTL loads
5. Significant power reduction compared to LSTTL logic ICs

Applications:

1. Synchronize invterted clock inputs
2. Debounce a switch
3. Invert a digital signal

Other data sheets are available within the file: SN74HC14DR, SN74HC14NR, SN54HC14JR

Part Number: BQ24151A

Function: Fully Integrated Switch-Mode One-Cell Li-Ion Charger

Package: 2 x 2 mm 20-Pin WCSP Type

Manufacturer: Texas Instruments

Product Image :

BQ24151A datasheet

Description

The bq24150A, BQ24151A is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I²C interface. The bq24150A/1A integrates a synchronous PWM controller, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.

The bq24150A/1A charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on user-selectable minimum current level. A safety timer with reset control provides a safety backup for I²C interface. During normal operation, bq24150A/1A automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status is reported to the host using the I²C interface.

During the charging process, the bq24150A/1A monitors its junction temperature (T_J) and reduces the charge current once T_J increases to approximately 125°C. To support USB OTG device, bq24150A/1A provides VBUS (approximately 5.05 V) by boosting the battery voltage. The bq24150A/1A is available in 20-pin WCSP package

Features

1. Charge Faster than Linear Chargers

2. High-Accuracy Voltage and Current Regulation

3. High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs

4. 20-V Absolute Maximum Input Voltage Rating

5. 6-V Maximum Operating Input Voltage

6. Built-In Input Current Sensing and Limiting

Official Homepage: https://www.ti.com/product/BQ24151A

Datasheet PDF Download

Other data sheets are available within the file: BQ24150AYFFR, BQ24150AYFFT, BQ24151A,