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ISL9221IRZ from INTERSIL

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ISL9221IRZ

Manufacturer: INTERSIL

Dual Input Lithium Ion Battery Charger with OVP USB Bypass and 10mA LDO

Partnumber Manufacturer Quantity Availability
ISL9221IRZ INTERSIL 824 In Stock

Description and Introduction

Dual Input Lithium Ion Battery Charger with OVP USB Bypass and 10mA LDO The **ISL9221IRZ** is a battery charger IC manufactured by **Intersil** (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**
- **Input Voltage Range:** 4.35V to 6.5V  
- **Charge Voltage Range:** 3.6V to 4.45V (adjustable)  
- **Charge Current:** Up to 2A (programmable)  
- **Battery Chemistry Support:** Single-cell Li-ion/Li-polymer  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-Lead DFN (3mm x 3mm)  

### **Descriptions:**
- A highly integrated, standalone linear battery charger for single-cell Li-ion/Li-polymer batteries.  
- Designed for portable devices with USB or AC adapter power sources.  
- Supports automatic power source detection (USB or AC adapter).  
- Includes thermal regulation to prevent overheating.  

### **Features:**
- **Programmable Charge Current:** Adjustable via external resistor.  
- **Automatic Power Source Selection:** Detects USB or AC adapter input.  
- **Thermal Regulation:** Reduces charge current if temperature exceeds safe limits.  
- **Charge Status Indication:** Open-drain outputs for charging/fault conditions.  
- **Reverse Leakage Protection:** Prevents battery discharge when input power is removed.  
- **Pre-Charge & Fast-Charge Modes:** Supports battery conditioning and fast charging.  
- **Small Footprint:** 10-Lead DFN package for space-constrained designs.  

For exact details, refer to the official **Intersil datasheet** or **Renesas documentation**.

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