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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.

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.

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.

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