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MAX1645BEEI from MAXIM,MAXIM - Dallas Semiconductor

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MAX1645BEEI

Manufacturer: MAXIM

Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting

Partnumber Manufacturer Quantity Availability
MAX1645BEEI MAXIM 246 In Stock

Description and Introduction

Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting The MAX1645BEEI is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Package:** 16-QSOP (Quad Flat Small Outline Package)  
- **Input Voltage Range:** 4V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 16V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 300kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Control Method:** PWM (Pulse-Width Modulation)  

### **Descriptions:**  
The MAX1645BEEI is a step-down (buck) DC-DC converter designed for high-efficiency power conversion. It integrates a power MOSFET and control circuitry to deliver a regulated output voltage from an input supply ranging from 4V to 30V. The device is suitable for battery-powered applications, portable devices, and industrial systems requiring efficient power management.

### **Features:**  
- **Wide Input Voltage Range (4V to 30V)**  
- **Adjustable Output Voltage (1.25V to 16V)**  
- **High Efficiency (Up to 90%)**  
- **Internal Power MOSFET**  
- **300kHz Switching Frequency**  
- **Low Dropout Operation**  
- **Short-Circuit Protection**  
- **Thermal Shutdown Protection**  
- **Low Quiescent Current (100µA typical)**  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting
Partnumber Manufacturer Quantity Availability
MAX1645BEEI MAX 779 In Stock

Description and Introduction

Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting The MAX1645BEEI is a DC-DC converter IC manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1645BEEI  
- **Type:** Step-Up (Boost) DC-DC Converter  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** Adjustable (up to 5.5V)  
- **Output Current:** Up to 300mA  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Package:** 16-pin QSOP (QSOP-16)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
The MAX1645BEEI is a high-efficiency, low-voltage, step-up DC-DC converter designed for battery-powered applications. It is capable of generating a regulated output voltage from very low input voltages, making it suitable for single-cell or dual-cell battery systems.

### **Features:**
- **Low Start-Up Voltage:** Operates down to 0.7V input.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **High Efficiency:** Up to 90% power conversion efficiency.  
- **Internal Power MOSFET:** Eliminates the need for an external switch.  
- **Low Quiescent Current:** Typically 45µA for improved battery life.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Overcurrent Protection:** Safeguards against excessive load conditions.  
- **Compact Package:** 16-pin QSOP for space-constrained applications.  

This information is strictly factual and derived from the manufacturer's datasheet. Let me know if you need further details.

Application Scenarios & Design Considerations

Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting
Partnumber Manufacturer Quantity Availability
MAX1645BEEI 236 In Stock

Description and Introduction

Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting The MAX1645BEEI is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Manufacturer:** Maxim Integrated  
### **Part Number:** MAX1645BEEI  

### **Description:**  
The MAX1645BEEI is a synchronous step-down DC-DC converter designed for high-efficiency power conversion in portable and battery-powered applications. It integrates two N-channel MOSFETs and operates with a fixed-frequency PWM control scheme.

### **Key Features:**  
- **Input Voltage Range:** 4V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 16V  
- **Output Current:** Up to 1.5A  
- **Efficiency:** Up to 95%  
- **Switching Frequency:** 300kHz (fixed)  
- **Integrated Synchronous Rectifier:** Reduces external component count  
- **Low Dropout Operation:** Allows high duty cycle for extended battery life  
- **Soft-Start Function:** Prevents inrush current  
- **Overcurrent and Thermal Protection:** Enhances reliability  
- **Package:** 16-pin QSOP (Exposed Pad)  

### **Applications:**  
- Battery-powered devices  
- Portable electronics  
- Industrial power supplies  
- Distributed power systems  

This information is strictly based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting

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