Charger

BQ24151A Datasheet PDF – One-Cell Li-Ion Charger

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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 (TJ) and reduces the charge current once TJ 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


BQ24151A pdf

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

TC3582DA Datasheet PDF – Multifunctional Charger IC – FM

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Part Number: TC3582DA

Function: Multifunctional Charger IC

Package: DIP 8 Pin, COB 8 Pin Type

Manufacturer: SHENZHEN FUMAN ELECTRONICS

Image

tc3582da-multifunctional-charger-ic

Description

The TC3582DA is Multifunctional Charger IC.

1. Battery testing

In the case of VDD disconnect the battery access, whether positive or negative, as long as good contact, battery test indicator light L1, (the market a lot of anti-
Then L1 is not bright, but L2, or L3 light, here to note), that the battery has been normal access to the circuit. (Note: If the battery is connected, reverse all not
Bright, you can determine the battery power is too low, or has been damaged)

2. The battery is empty

When VDD is connected and not connected to the battery, L1, L3 are always on; the voltage difference between BTP and BTN is 4.17V (typical).

3. Normal charge and saturation detection

VDD connected and access less than the battery, the power control chip through the beginning of the normal battery charge (at this time regardless of the polarity of the battery in what
(L2 flashing frequency of 1.5HZ, L2 flashing), the battery voltage is gradually increased, if the three-lamp mode, then the L1 light, L2 flashing (L2 flashing frequency 1.5HZ,
The best to do OPTION, to prevent bias), L3 off, said the battery is being charged; when the battery voltage rises to 4.3V (typical), L2 off.

4. Short-circuit protection

If the battery is short-circuited during the charging process, ie the impedance between BTP and BTN is low and the voltage drop is less than 1.5V (typical), the core
Chip “short circuit protection” system will automatically cut off the charging circuit to avoid high current. At this point if the use of three-lamp mode, L1, L2 off, L3 light,
If the two-lamp mode is selected, L1 is off and L2 is on, indicating that the battery is not properly connected to the circuit. When the short-circuit fault is cleared, return to the respective normal mode.

 

Pinout

tc3582da-datasheet-pinout

Features

1. Support ordinary three-lamp model, seven-color lamp model, two-lamp model.

2. Support type charger model.

3. Automatic identification battery polarity.

4. Charge and discharge voltage 4.25V (typical value).

5. Internal standards.

6. Extremely small outside property.

7. Empty time during export.

8. Short-circuit protection function.

TC3582DA Datasheet PDF


 

 

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