BQ24133RGYT
ActiveSTANDALONE 1-3 CELL 2.5A SYNCHRONOUS BUCK BATTERY CHARGER WITH EXTERNAL POWER PATH
Deep-Dive with AI
Search across all available documentation for this part.
BQ24133RGYT
ActiveSTANDALONE 1-3 CELL 2.5A SYNCHRONOUS BUCK BATTERY CHARGER WITH EXTERNAL POWER PATH
Technical Specifications
Parameters and characteristics for this part
| Specification | BQ24133RGYT |
|---|---|
| Battery Chemistry | Lithium Ion/Polymer |
| Battery Pack Voltage | 4.2 V |
| Charge Current - Max [Max] | 2.5 A |
| Current - Charging | Constant - Programmable |
| Fault Protection | Over Voltage, Over Current, Over Temperature |
| Mounting Type | Surface Mount |
| Number of Cells [Max] | 3 cells |
| Number of Cells [Min] | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 24-VFQFN Exposed Pad |
| Programmable Features | Current |
| Supplier Device Package | 24-VQFN |
| Supplier Device Package [x] | 5.5 |
| Supplier Device Package [y] | 3.5 |
| Voltage - Supply (Max) [Max] | 17 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 5.91 | |
| 10 | $ 3.98 | |||
| 25 | $ 3.48 | |||
| 100 | $ 2.92 | |||
| Digi-Reel® | 1 | $ 5.91 | ||
| 10 | $ 3.98 | |||
| 25 | $ 3.48 | |||
| 100 | $ 2.92 | |||
| Tape & Reel (TR) | 250 | $ 2.64 | ||
| 500 | $ 2.48 | |||
| 750 | $ 2.39 | |||
| 1250 | $ 2.30 | |||
| 1750 | $ 2.25 | |||
| 2500 | $ 2.19 | |||
| Texas Instruments | SMALL T&R | 1 | $ 3.48 | |
| 100 | $ 3.05 | |||
| 250 | $ 2.14 | |||
| 1000 | $ 1.72 | |||
Description
General part information
BQ24133 Series
The BQ24133 device is a highly integrated stand-alone Li-Ion and Li-Polymer switched-mode battery charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high accuracy regulation of input current, charge current, and voltage. The BQ24133 closely monitors the battery pack temperature to allow charge only in a preset temperature window. The BQ24133 charges one, two, or three cells (selected by CELL pin) at a fixed 4.2 V/cell.
The BQ24133 charges the battery in three phases: preconditioning, constant current, and constant voltage.
The BQ24133 provides power path selector gate driver ACDRV/CMSRC on input NMOS pair ACFET (Q1) and RBFET (Q2), and BATDRV on a battery PMOS device (Q3). When the qualified adapter is present, the system is directly connected to the adapter. Otherwise, the system is connected to the battery. In addition, the power path prevents battery from boosting back to the input.
Documents
Technical documentation and resources
