ZVS Full Bridge PWM Controller The ISL6551IB is a single-phase PWM controller manufactured by INTERSIL (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on available data:
### **Specifications:**
- **Input Voltage Range:** Supports operation with input voltages typically used in power supply applications (exact range may vary; consult datasheet).
- **Output Voltage Range:** Adjustable via external components.
- **Switching Frequency:** Programmable, typically up to several hundred kHz.
- **Duty Cycle Range:** Supports a wide duty cycle range for flexible power supply design.
- **Operating Temperature Range:** Industrial-grade (-40°C to +85°C).
- **Package:** Typically available in a standard SOIC or other surface-mount package.
### **Descriptions:**
- Designed for single-phase DC-DC converter applications.
- Provides precise voltage regulation for powering microprocessors, memory, and other low-voltage systems.
- Includes integrated drivers for controlling external MOSFETs.
- Features voltage-mode control architecture.
### **Features:**
1. **Precision Voltage Regulation:** Uses a high-accuracy reference for tight output voltage control.
2. **Programmable Soft-Start:** Limits inrush current during startup.
3. **Overcurrent Protection (OCP):** Monitors and shuts down the converter in case of excessive current.
4. **Overvoltage Protection (OVP):** Safeguards the load from voltage spikes.
5. **Undervoltage Lockout (UVLO):** Ensures proper operation only when the input voltage is sufficient.
6. **Power-Good (PGOOD) Output:** Provides a signal indicating stable output voltage.
7. **Synchronization Capability:** Can sync with an external clock to reduce noise.
8. **Adjustable Switching Frequency:** Allows optimization for efficiency and component size.
For exact values and application details, refer to the official **ISL6551IB datasheet** from Renesas (formerly INTERSIL).
