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ISL9221IRZ-T from INTERSIL

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ISL9221IRZ-T

Manufacturer: INTERSIL

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

Partnumber Manufacturer Quantity Availability
ISL9221IRZ-T,ISL9221IRZT INTERSIL 21000 In Stock

Description and Introduction

Dual Input Lithium Ion Battery Charger with OVP USB Bypass and 10mA LDO The ISL9221IRZ-T is a battery charger IC manufactured by INTERSIL (now part of Renesas Electronics). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** INTERSIL  
- **Part Number:** ISL9221IRZ-T  
- **Package:** 10-Lead DFN (3x3mm)  
- **Input Voltage Range:** 4.35V to 6.5V  
- **Charge Voltage Range:** 3.5V to 4.44V (programmable)  
- **Charge Current:** Up to 2A (programmable)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Charge Termination:** Programmable (C/10 or timer-based)  
- **Battery Chemistry:** Li-ion/Polymer  

### **Descriptions:**
- The ISL9221IRZ-T is a highly integrated switching battery charger designed for single-cell Li-ion or Li-polymer batteries.  
- It supports USB input and adapter input with automatic power source selection.  
- The device includes dynamic power management (DPM) to optimize charge current based on input power availability.  

### **Features:**
- **Programmable Charge Parameters:** Voltage (up to 4.44V), current (up to 2A), and termination threshold.  
- **Automatic Power Source Detection:** Supports USB and adapter inputs.  
- **Dynamic Power Management (DPM):** Adjusts charge current to prevent input source overload.  
- **Thermal Regulation:** Reduces charge current if temperature exceeds safe limits.  
- **Charge Status Indicators:** Open-drain outputs for charging and fault conditions.  
- **Low Battery Quiescent Current:** <10µA in shutdown mode.  
- **Safety Features:** Overvoltage protection (OVP), thermal shutdown, and reverse current blocking.  

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

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