Li-ion/Li Polymer Battery Charger The ISL9203CRZ-TR5220 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 (now Renesas Electronics)
- **Part Number:** ISL9203CRZ-TR5220
- **Package:** 8-Lead DFN (Dual Flat No-Lead)
- **Input Voltage Range:** 4.35V to 6.5V
- **Charge Voltage:** 4.2V ±1% (adjustable)
- **Charge Current:** Up to 1A (programmable)
- **Operating Temperature Range:** -40°C to +85°C
- **Charge Termination:** Constant Voltage (CV) / Constant Current (CC)
- **Pre-Charge Current:** Adjustable
- **Charge Status Indicators:** Available (Open-Drain Outputs)
- **Protection Features:**
- Thermal Shutdown
- Input Overvoltage Protection (OVP)
- Battery Overvoltage Protection
- Reverse Leakage Protection
### **Descriptions:**
- The ISL9203CRZ-TR5220 is a single-cell Li-ion/Li-polymer battery charger IC designed for portable applications.
- It integrates a power MOSFET, current sensing, and reverse-blocking diode, reducing external component count.
- Supports USB and AC adapter input power sources.
- Features automatic recharge when battery voltage drops below a preset threshold.
### **Features:**
- **Linear Charger Architecture**
- **Programmable Charge Current** via external resistor
- **Automatic Power Source Detection** (USB/AC adapter)
- **Low Dropout Voltage** for efficient charging
- **Battery Temperature Monitoring** (with NTC support)
- **Small Footprint** (3mm x 3mm DFN package)
- **RoHS Compliant**
This information is based on the manufacturer's datasheet and technical documentation. For detailed electrical characteristics and application circuits, refer to the official datasheet.
