Description
Texas Instruments UC2843AN Current Mode PWM Controller 1A 8-Pin PDIP Tube
The UCx84xA family of control ICs is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5 mA, oscillator discharge is trimmed to 8.3 mA, and during UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.
Category Integrated Circuits (ICs)
Family PMIC – Voltage Regulators – DC DC Switching Controllers
Series –
Packaging ? Tube ?
Number of Outputs 1
Frequency – Max 500kHz
Duty Cycle 100%
Voltage – Supply 7.6 V ~ 30 V
Buck No
Boost Yes
Flyback Yes
Inverting No
Doubler No
Divider No
Cuk No
Isolated Yes
Operating Temperature -40°C ~ 85°C
Package / Case 8-DIP (0.300″, 7.62mm)
Supplier Device Package 8-PDIP
Online Catalog Current Mode
Features
- Optimized for Off-Line and DC-DC Converters
- Low Start-Up Current (< 0.5 mA)
- Trimmed Oscillator Discharge Current
- Automatic Feedforward Compensation
- Pulse-by-Pulse Current Limiting
- Enhanced Load Response Characteristics
- Undervoltage Lockout With Hysteresis
- Double Pulse Suppression
- High-Current Totem Pole Output
- Internally-Trimmed Bandgap Reference
- Up to 500-kHz Operation
Manufacturer Part Number: UC2843AN
Manufacturer: Texas Instruments
