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LM3420M5X-4.2 from NS国半,National Semiconductor

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LM3420M5X-4.2

Manufacturer: NS国半

Lithium-Ion Battery Charge Controller

Partnumber Manufacturer Quantity Availability
LM3420M5X-4.2,LM3420M5X42 NS国半 28000 In Stock

Description and Introduction

Lithium-Ion Battery Charge Controller The LM3420M5X-4.2 is a lithium-ion battery charger controller manufactured by National Semiconductor (NS国半).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 75V  
- **Battery Voltage:** 4.2V (fixed)  
- **Charging Current:** Adjustable via external resistor  
- **Package:** SOT-23-5  
- **Operating Temperature Range:** -40°C to +125°C  
- **Charging Termination:** Constant Voltage (CV) / Constant Current (CC)  
- **Features:**  
  - Thermal regulation  
  - Automatic recharge  
  - Charge status indication  
  - Low shutdown current  

### **Descriptions and Features:**  
- Designed for single-cell lithium-ion battery charging.  
- Supports high input voltage operation (up to 75V).  
- Includes thermal regulation to prevent overheating.  
- Provides charge status indication (open-drain output).  
- Adjustable charging current using an external resistor.  
- Automatic recharge when battery voltage drops below a threshold.  
- Low quiescent current in shutdown mode.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Lithium-Ion Battery Charge Controller

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