Product Summary

The TL3843P is a current-mode PWM controller. It provides the features that are necessary to implement off-line or dc-to-dc fixed-frequency current-mode control schemes with a minimum number of external components.

Parametrics

TL3843P absolute maximum ratings: (1)Supply voltage: Self limiting; (2)Input voltage: 35 V (3)Analog input voltage range: –0.3 V to 6.3 V; (4)Input voltage: 35 V; (5)Error amplifier output sink current: 10 mA; (6)Virtual junction temperature range: 0°C to 150°C; (7)Output energy (capacitive load): 5 uJ; (8)Storage temperature range: -65 to +150 °C.

Features

TL3843P features: (1)Optimized for Off-Line and dc-to-dc Converters; (2)Low Start-Up Current (<1 mA); (3)Automatic Feed-Forward Compensation; (4)Pulse-by-Pulse Current Limiting; (5)Enhanced Load-Response Characteristics; (6)Undervoltage Lockout With Hysteresis; (7)Double-Pulse Suppression; (8)High-Current Totem-Pole Output; (9)Internally Trimmed Bandgap Reference; (10)500-kHz Operation; (11)Error Amplifier With Low Output Resistance.

Diagrams

TL3843P pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TL3843PE4
TL3843PE4
Texas Instruments
Current Mode PWM Controllers Current-Mode PWM Controller
Data Sheet
0-1: $0.53
1-25: $0.43
25-100: $0.39
100-250: $0.34
TL3843P
TL3843P
Texas Instruments
Current Mode PWM Controllers Current Mode PWM
Data Sheet
0-1: $0.59
1-25: $0.47
25-100: $0.42
100-250: $0.36