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MAX1554ETA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1554ETA+

Manufacturer: MAXIM

High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs

Partnumber Manufacturer Quantity Availability
MAX1554ETA+,MAX1554ETA MAXIM 1400 In Stock

Description and Introduction

High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs The MAX1554ETA+ is a battery charger IC manufactured by **MAXIM** (now part of Analog Devices).  

### **Key Specifications:**  
- **Input Voltage Range:** 4V to 7V  
- **Charge Voltage:** 4.2V (adjustable)  
- **Charge Current:** Up to 1A (programmable)  
- **Package:** 8-pin TDFN (3mm x 3mm)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Charging Method:** Linear (constant-current/constant-voltage)  

### **Description:**  
The MAX1554ETA+ is a compact, single-cell Li-ion battery charger designed for USB and AC adapter power sources. It integrates a power MOSFET, current-sense circuitry, and thermal regulation, eliminating the need for external components.  

### **Features:**  
- **Automatic Power Source Selection** (USB or AC adapter)  
- **Programmable Charge Current** (via external resistor)  
- **Thermal Regulation** for safe operation  
- **Charge Status Outputs** (LED or microcontroller interface)  
- **No External MOSFET or Diode Required**  
- **Low Dropout Voltage** for efficient charging  

This IC is commonly used in portable devices like smartphones, tablets, and other USB-powered gadgets.  

(Source: MAXIM Integrated datasheet)

Application Scenarios & Design Considerations

High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs
Partnumber Manufacturer Quantity Availability
MAX1554ETA+,MAX1554ETA MAXIM/DALLAS 2 In Stock

Description and Introduction

High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs The MAX1554ETA+ is a lithium-ion (Li+) battery charger from Maxim Integrated (formerly Dallas Semiconductor).  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated/Dallas  
- **Part Number:** MAX1554ETA+  
- **Package:** 8-pin TDFN (3mm x 3mm)  
- **Input Voltage Range:** 4V to 6.5V  
- **Charge Voltage:** 4.2V ±0.8%  
- **Charge Current:** Up to 500mA (programmable)  
- **Charge Termination:** Automatic (based on current threshold)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Features:** Thermal regulation, overvoltage protection, automatic recharge  

### **Descriptions:**  
The MAX1554ETA+ is a compact, linear charger designed for single-cell Li+ batteries. It integrates thermal regulation to prevent overheating and includes automatic charge termination when the battery reaches full capacity.  

### **Features:**  
- **Programmable Charge Current:** Adjustable via external resistor  
- **Thermal Regulation:** Reduces charge current if temperature rises  
- **No External MOSFET or Blocking Diode Required**  
- **Automatic Recharge:** Initiates charging if battery voltage drops  
- **Low-Power Mode:** Minimal power consumption when not charging  
- **Overvoltage Protection:** Safeguards against excessive input voltage  

This information is based solely on the manufacturer's datasheet and specifications.

Application Scenarios & Design Considerations

High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs

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