Current-Mode PWM Controller The TL3842D-8 is a pulse-width modulation (PWM) controller IC. Below are its key specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Manufacturer:** N/A (Not specified in the provided knowledge base)
- **Type:** Current-mode PWM controller
- **Package:** SOIC-8 (Small Outline Integrated Circuit, 8-pin)
- **Operating Voltage Range:** 7V to 30V
- **Switching Frequency:** Up to 500 kHz (adjustable with external components)
- **Output Duty Cycle:** 0% to 100% (adjustable)
- **Maximum Output Current:** 200mA (sink/source)
- **Error Amplifier Bandwidth:** 1 MHz (typical)
- **Reference Voltage:** 5V (with ±1% accuracy)
- **Operating Temperature Range:** -40°C to +85°C (industrial grade)
### **Descriptions:**
- Designed for DC-DC converter applications.
- Provides precise voltage regulation in switch-mode power supplies (SMPS).
- Operates in current-mode control for improved loop response and simplified feedback compensation.
- Includes an under-voltage lockout (UVLO) feature for reliable startup.
### **Features:**
- **Current-Mode Control:** Enhances transient response and simplifies loop compensation.
- **Adjustable Oscillator Frequency:** Allows flexibility in design.
- **Internal Trimmed Reference:** Ensures stable 5V output with high accuracy.
- **Under-Voltage Lockout (UVLO):** Ensures proper operation only when the supply voltage is sufficient.
- **Soft-Start Capability:** Reduces inrush current during startup.
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.
- **Low Startup Current:** Typically 1mA for efficient operation.
This information is strictly based on the factual specifications and features of the TL3842D-8 PWM controller.
