Product Summary

The UCC28C43D is a high-performance currentmode PWM controller. It is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UC384 family of PWM controllers.

Parametrics

UCC28C43D absolute maximum ratings: (1)Supply voltage (VDD): 20V; (2)Supply voltage (MAX ICC): 30mA; (3)Output current, IOUT peak: ±1A; (4)Output energy, capacitive load: 5μJ; (5)Voltage rating (COMP, CS, FB): -0.3V to 6.3V; (6)Voltage rating (OUT): -0.3V to 20V; (7)Voltage rating (RT/CT): -0.3V to 6.3V; (8)Voltage rating (VREF): 7V; (9)Error amplifier output sink current: 10mA; (10)Total Power Dissipation at TA = 25℃: D package (θjc = 22 ℃/W, θja = 40 - 70 ℃/W): 650mW; (11)DGK package (θjc = 41 ℃/W, θja = 238 - 269 ℃/W: 350mW; (12)P package (θjc = 50 ℃/W, θja = 110 ℃/W: 850mW; (13)Operating junction temperature range, TJ: -55℃ to 150℃; (14)Storage temperature range, Tstg: -65℃ to 150℃; (15)Lead Temperature (Soldering, 10 seconds): 300℃.

Features

UCC28C43D features: (1)Enhanced Replacement for UC3842A Family With Pin-to-Pin Compatibility; (2)1-MHz Operation; (3)50-μA Standby Current, 100-μA Maximum; (4)Low Operating Current of 2.3 mA at 52 kHz; (5)Fast 35-ns Cycle-by-Cycle Overcurrent Limiting; (6)±1-A Peak Output Current; (7)Rail-to-Rail Output Swings with 25-ns Rise and 20-ns Fall Times; (8)±1% Initial Trimmed 2.5-V Error Amplifier Reference; (9)Trimmed Oscillator Discharge Current; (10)New Under Voltage Lockout Versions; (11)MSOP-8 Package Minimizes Board Space.

Diagrams

UCC28C43D FUNCTIONAL BLOCK DIAGRAM

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
UCC28C43D
UCC28C43D

Texas Instruments

Current Mode PWM Controllers BiCMOS Low-Power Current Mode

Data Sheet

0-1: $1.22
1-25: $1.06
25-100: $0.97
100-250: $0.85
UCC28C43DG4
UCC28C43DG4

Texas Instruments

Current Mode PWM Controllers BiCMOS Low-Power Current Mode

Data Sheet

0-1: $1.19
1-25: $0.96
25-100: $0.87
100-250: $0.79
UCC28C43DGK
UCC28C43DGK

Texas Instruments

Current Mode PWM Controllers BiCMOS Low-Power Current Mode

Data Sheet

0-1: $1.22
1-25: $1.06
25-100: $0.97
100-250: $0.85
UCC28C43DGKRG4
UCC28C43DGKRG4

Texas Instruments

Current Mode PWM Controllers BiCMOS Low-Power Current Mode

Data Sheet

0-1790: $0.48
1790-2000: $0.45
2000-2500: $0.45
2500-5000: $0.44
UCC28C43DGKR
UCC28C43DGKR

Texas Instruments

Current Mode PWM Controllers BiCMOS Low-Power Current Mode

Data Sheet

0-1790: $0.48
1790-2000: $0.45
2000-2500: $0.45
2500-5000: $0.44
UCC28C43DGKG4
UCC28C43DGKG4

Texas Instruments

Current Mode PWM Controllers BiCMOS Low-Power Current Mode

Data Sheet

0-1: $1.19
1-25: $0.96
25-100: $0.87
100-250: $0.79
UCC28C43DR
UCC28C43DR

Texas Instruments

Current Mode PWM Controllers BiCMOS Low-Power Current Mode

Data Sheet

0-1: $0.98
1-25: $0.85
25-100: $0.77
100-250: $0.68
UCC28C43DRG4
UCC28C43DRG4

Texas Instruments

Current Mode PWM Controllers BiCMOS Low-Power Current Mode

Data Sheet

0-1790: $0.48
1790-2000: $0.45
2000-2500: $0.45
2500-5000: $0.44