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UCC3946PW from TI/UNITRODE,Texas Instruments

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UCC3946PW

Manufacturer: TI/UNITRODE

Microprocessor Supervisor with Watchdog Timer

Partnumber Manufacturer Quantity Availability
UCC3946PW TI/UNITRODE 27 In Stock

Description and Introduction

Microprocessor Supervisor with Watchdog Timer The UCC3946PW is a synchronous buck controller manufactured by Texas Instruments (TI)/Unitrode. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)/Unitrode  
- **Package:** TSSOP-20  
- **Type:** Synchronous Buck Controller  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable  
- **Switching Frequency:** Up to 1MHz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Control Method:** Voltage Mode PWM  

### **Descriptions:**
- The UCC3946PW is a high-efficiency, synchronous buck controller designed for low-voltage DC-DC conversion.  
- It is optimized for battery-powered applications, providing precise voltage regulation.  
- The IC integrates key functions to minimize external component count.  

### **Features:**
- **Low Input Voltage Operation:** Supports 2.7V to 5.5V input range.  
- **High Efficiency:** Synchronous rectification improves power conversion efficiency.  
- **Adjustable Output Voltage:** Allows flexibility in design.  
- **1MHz Switching Frequency:** Enables compact power supply designs.  
- **Voltage Mode Control:** Provides stable regulation.  
- **Low Quiescent Current:** Enhances battery life in portable applications.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  

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

Application Scenarios & Design Considerations

Microprocessor Supervisor with Watchdog Timer
Partnumber Manufacturer Quantity Availability
UCC3946PW TI 225 In Stock

Description and Introduction

Microprocessor Supervisor with Watchdog Timer The UCC3946PW is a power management IC manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** UCC3946PW  
- **Package:** TSSOP (Thin Shrink Small Outline Package)  
- **Number of Pins:** 16  
- **Type:** Power Management IC  
- **Function:** Battery Charger Controller  

### **Descriptions:**
- The UCC3946PW is a high-performance, switch-mode battery charger controller designed for single-cell Li-Ion or Li-Polymer batteries.  
- It integrates PWM control for efficient charging and includes protection features for safe operation.  
- Suitable for portable electronics requiring precise battery charging control.  

### **Features:**
1. **Input Voltage Range:** Supports a wide input voltage range for flexibility in power sources.  
2. **PWM Control:** Provides efficient switch-mode charging to minimize power loss.  
3. **Precision Voltage Regulation:** Ensures accurate charging voltage for Li-Ion/Li-Polymer batteries.  
4. **Charge Termination:** Automatically stops charging when the battery reaches full capacity.  
5. **Protection Features:** Includes overvoltage, overcurrent, and thermal shutdown protection.  
6. **Low Standby Current:** Reduces power consumption when not actively charging.  
7. **TSSOP Package:** Compact form factor suitable for space-constrained applications.  

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

Application Scenarios & Design Considerations

Microprocessor Supervisor with Watchdog Timer

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