Current-Mode PWM Controller The TL2843P is a PWM controller IC manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Series:** TL2843
- **Package:** PDIP-8 (Plastic Dual In-Line Package)
- **Type:** Current-Mode PWM Controller
- **Topology:** Flyback, Forward, Boost, Buck
- **Operating Frequency:** Up to 500 kHz
- **Input Voltage Range (VCC):** 8V to 30V
- **Output Drive Current:** ±200 mA (Peak)
- **Duty Cycle Range:** 0% to 100%
- **Error Amplifier Bandwidth:** 1 MHz
- **Start-Up Current:** 0.5 mA (Typical)
- **Operating Temperature Range:** -40°C to +85°C
### **Descriptions:**
The TL2843P is a high-performance current-mode PWM controller designed for switch-mode power supply applications. It provides precise regulation with features like cycle-by-cycle current limiting, undervoltage lockout (UVLO), and a programmable oscillator.
### **Features:**
- **Current-Mode Control:** Improves loop response and simplifies compensation.
- **Undervoltage Lockout (UVLO):** Ensures proper start-up and shutdown.
- **Programmable Oscillator:** Allows frequency adjustment with external components.
- **Error Amplifier:** High-gain bandwidth for accurate feedback control.
- **Soft-Start Capability:** Reduces inrush current during start-up.
- **Pulse-by-Pulse Current Limiting:** Enhances system protection.
- **Totem Pole Output:** Direct drive for power MOSFETs.
- **Low Power Consumption:** Optimized for efficiency.
This information is based solely on the manufacturer's datasheet and technical documentation.
