( Electronic Components IC Chips Integrated Circuits IC ) TDA21490
Product Attributes
| TYPE | DESCRIPTION |
| Category | Integrated Circuits (ICs) |
| Mfr | Infineon Technologies |
| Series | OptiMOS™ |
| Package | Tape & Reel (TR)
Cut Tape (CT) Digi-Reel® |
| Product Status | Active |
| Driven Configuration | High-Side or Low-Side |
| Channel Type | Independent |
| Number of Drivers | 2 |
| Gate Type | N-Channel MOSFET |
| Voltage – Supply | 4.25V ~ 16V |
| Logic Voltage – VIL, VIH | - |
| Current – Peak Output (Source, Sink) | 90A, 70A |
| Input Type | Non-Inverting |
| Rise / Fall Time (Typ) | - |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 39-PowerVFQFN |
| Supplier Device Package | PG-IQFN-39 |
| Base Product Number | TDA21490 |
Documents & Media
| RESOURCE TYPE | LINK |
| Datasheets | TDA21490 |
Environmental & Export Classifications
| ATTRIBUTE | DESCRIPTION |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
Additional Resources
| ATTRIBUTE | DESCRIPTION |
| Other Names | SP002504078
448-TDA21490AUMA1CT 448-TDA21490AUMA1TR 448-TDA21490AUMA1DKR |
| Standard Package | 5,000 |
PMIC, also known as power management IC, is a specific integrated circuit that manages power supplies for the main system.
Pmics are often used in battery-powered devices, such as mobile phones or portable media players. Since such devices usually have more than one power supply (such as battery and USB power supply), the system requires multiple power supplies of different voltages, and the charge and discharge of the battery must be controlled. Meeting such demand in the traditional way will occupy a lot of space and increase the product development time, thus the emergence of PMIC.
The main function of PMIC is to control the power flow and flow direction to meet the needs of the main system. From multiple power sources (e.g., external true-current power sources, batteries, USB power sources, etc.), select and distribute power to various parts of the main system for use, such as providing multiple power sources of different voltages and responsible for charging internal batteries. Because the systems used are mostly battery powered, they are designed with high conversion efficiency to reduce power loss.
PMIC usually has more than one function. These functions include:
Dc-dc converter
Low pressure differential regulator (LDO)
Battery charger
Power supply selection
Dynamic voltage regulation
Control the sequence of power supply opening and closing
Voltage detection of each power supply
Temperature detection
Other functions
Due to the need to coordinate with the main system, signal interfaces that need to communicate with the main system generally use series interfaces such as I²C or SPI. Some PMIC with simple functions will directly connect to GPIO of MCU with independent signals.
Some PMICS can be connected to a backup power supply for real-time clock use, and some will have simple power status indicators, such as using leds to show battery charging and discharging status.
Some PMICS are designed for a specific family of MCUS, and the company that develops the corresponding MCUS will have firmware available to support the PMIC’s work.
