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
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
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