(Hong Kong)
Product Summary
The UCC3802 is a Low-Power BiCMOS Current-Mode PWM controller. It contains all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching power supplies with minimal parts count. The UCC3802 has the same pin configuration as the UC1842/3/4/5 family, and also offers the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.
Parametrics
UCC3802 absolute maximum ratings: (1)VCC Voltage: 12.0V; (2)VCC Current: 30.0mA; (3)OUT Current: ±1.0A; (4)OUT Energy (Capacitive Load): 20.0μJ; (5)Analog Inputs (FB, CS): –0.3V to 6.3V; (6)Power Dissipation at TA < +25℃ (N or J Package): 1.0W; (7)Power Dissipation at TA < +25℃ (D Package): 0.65W; (8)Power Dissipation at TA < +25℃ (L Package): 1.375W; (9)Storage Temperature Range: –65 to +150℃; (10)Lead Temperature (Soldering, 10 Seconds): +300℃.
Features
UCC3802 features: (1)100μA Typical Starting Supply Current; (2)500μA Typical Operating Supply Current; (3)Operation to 1MHz; (4)Internal Soft Start; (5)Internal Fault Soft Start; (6)Internal Leading-Edge Blanking of the Current Sense Signal; (7)1 Amp Totem-Pole Output; (8)70ns Typical Response from Current-Sense to Gate Drive Output; (9)1.5% Tolerance Voltage Reference; (10)Same Pinout as UC3842 and UC3842A.
Diagrams
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 UCC3802 |
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UCC3802D |
Texas Instruments |
Current Mode PWM Controllers Low-Power BiCMOS Current-Mode PWM |
Data Sheet |
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UCC3802DG4 |
Texas Instruments |
Current Mode PWM Controllers Low-Power BiCMOS Current-Mode PWM |
Data Sheet |
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UCC3802DTR |
Texas Instruments |
Current Mode PWM Controllers Low-Power BiCMOS Current-Mode PWM |
Data Sheet |
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UCC3802DTRG4 |
Texas Instruments |
Current Mode PWM Controllers Low-Power BiCMOS Current-Mode PWM |
Data Sheet |
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UCC3802N |
Texas Instruments |
Current Mode PWM Controllers Low-Power BiCMOS Current-Mode PWM |
Data Sheet |
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UCC3802NG4 |
Texas Instruments |
Current Mode PWM Controllers Low-Power BiCMOS Current-Mode PWM |
Data Sheet |
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UCC3802PW |
Texas Instruments |
Current Mode PWM Controllers Low-Power BiCMOS Current-Mode PWM |
Data Sheet |
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