Overview
The LM3658SD-AEV/NOPB is a highly integrated, dual-input switch-mode battery charger IC produced by Texas Instruments. Designed for single-cell Li-ion and Li-polymer batteries, this product is ideal for portable devices such as smartphones, tablets, and other consumer electronics. Its market positioning targets applications requiring efficient power management and compact design. The LM3658SD-AEV/NOPB stands out for its dual-input capability, allowing seamless switching between USB and AC adapter power sources, and its high efficiency, which minimizes heat dissipation and extends battery life.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 4.35 to 6.5 | V | Supports USB and AC adapter inputs |
| Charging Voltage | 4.2 | V | For single-cell Li-ion/Li-polymer batteries |
| Charging Current | Up to 1.5 | A | Programmable |
| Efficiency | Up to 92 | % | Typical value |
| Operating Temperature | -40 to 85 | °C | Wide range for various environments |
| Package | WSON-10 | - | Compact and space-saving |
| Features | Dual-input, thermal regulation, charge status indicator | - | Enhances user experience |
Key Features
- Dual-Input Power Path Management: Seamlessly switches between USB and AC adapter inputs, ensuring uninterrupted charging.
- High Efficiency: Up to 92% efficiency reduces power loss and heat generation.
- Programmable Charging Current: Allows customization for different battery capacities.
- Thermal Regulation: Prevents overheating by dynamically adjusting charging parameters.
- Charge Status Indicator: Provides real-time feedback on charging status.
Applications
The LM3658SD-AEV/NOPB is widely used in portable electronic devices due to its compact design and efficient power management capabilities. Typical applications include:
- Smartphones and Tablets: Provides reliable and fast charging for single-cell Li-ion batteries.
- Portable Medical Devices: Ensures safe and efficient charging in critical applications.
- Wearable Electronics: Supports compact designs with its small form factor.
- Consumer Electronics: Ideal for devices requiring dual-input power management.
Q & A
1. What is the input voltage range of the LM3658SD-AEV/NOPB?
The input voltage range is 4.35V to 6.5V, supporting both USB and AC adapter inputs.
2. Can the charging current be adjusted?
Yes, the charging current is programmable up to 1.5A.
3. What type of batteries does this IC support?
It supports single-cell Li-ion and Li-polymer batteries.
4. What is the efficiency of the LM3658SD-AEV/NOPB?
It offers up to 92% efficiency, minimizing power loss.
5. Does it have thermal protection?
Yes, it includes thermal regulation to prevent overheating.
6. What is the operating temperature range?
The operating temperature range is -40°C to 85°C.
7. What package does the LM3658SD-AEV/NOPB use?
It comes in a compact WSON-10 package.
8. Does it support dual-input power sources?
Yes, it supports seamless switching between USB and AC adapter inputs.
9. Is there a charge status indicator?
Yes, it provides real-time feedback on the charging status.
10. What are the typical applications?
Typical applications include smartphones, tablets, portable medical devices, and wearable electronics.
