Product Summary

The UC2842D is a current mode pwm controller. It provides the necessary features to implement off-line or dc-to-dc fixed frequency current mode control schemes with a minimal external parts count.

Parametrics

UC2842D absolute maximum ratings: (1) Supply voltage, Low impedance source: 30 V; ICC < 30 mA: Self Limiting; (2)Output current: ±1 A; (3)Output energy (capacitive load): 5 mJ; (4)Analog inputs (Pins 2, 3): –0.3 V to 6.3 V; (5)Error amp output sink current: 10 mA; (6)Storage temperature range: –65℃ to 150℃; (7)Junction temperature range: –55℃ to 150℃; (8)Lead temperature (soldering, 10 seconds): 300℃.

Features

UC2842D features: (1)optimized for off-line and DC-to-DC converters; (2)low start-up current; (3)automatic feed forward compensation; (4)pulsed-by-pulse current limiting; (5)enhanced load response characteristics; (6)under-voltage lockout with hysteresis; (7)double pulse suppression; (8)high current totem pole output; (9)internally trimmed bandgap reference; (10)500kHz operation; (11)low R0 error Amp.

Diagrams

UC2842D circuit diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
UC2842D
UC2842D
Texas Instruments
Current Mode PWM Controllers Current-Mode PWM Controller
Data Sheet
0-1: $0.96
1-25: $0.77
25-100: $0.70
100-250: $0.64
UC2842D8
UC2842D8
Texas Instruments
Current Mode PWM Controllers Current-Mode PWM Controller
Data Sheet
0-1: $0.98
1-25: $0.85
25-100: $0.77
100-250: $0.68
UC2842D8G4
UC2842D8G4
Texas Instruments
Current Mode PWM Controllers Current-Mode PWM Controller
Data Sheet
0-1: $0.96
1-25: $0.77
25-100: $0.70
100-250: $0.64
UC2842D8TRG4
UC2842D8TRG4
Texas Instruments
Current Mode PWM Controllers Current-Mode PWM Controller
Data Sheet
0-1730: $0.40
1730-2000: $0.37
2000-2500: $0.37
2500-5000: $0.36
UC2842DG4
UC2842DG4
Texas Instruments
Current Mode PWM Controllers Crnt-Mode PWM Cntrlr
Data Sheet
0-1: $0.96
1-25: $0.77
25-100: $0.70
100-250: $0.64
UC2842DTR
UC2842DTR
Texas Instruments
Current Mode PWM Controllers Current-Mode PWM Controller
Data Sheet
0-1730: $0.40
1730-2000: $0.37
2000-2500: $0.37
2500-5000: $0.36
UC2842DTRG4
UC2842DTRG4
Texas Instruments
Current Mode PWM Controllers Current-Mode PWM Controller
Data Sheet
0-1730: $0.40
1730-2000: $0.37
2000-2500: $0.37
2500-5000: $0.36
UC2842DWG4
UC2842DWG4
Texas Instruments
Current Mode PWM Controllers Current-Mode PWM Controller
Data Sheet
Negotiable