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UCC3804 Series

12V, 1A low power BICMOS 1MHz current mode PWM with 12.5V/8.3V UVLO and 50% duty cycle, 0C to 70C

Manufacturer: Texas Instruments

Catalog(4 parts)

PartTopologyVoltage - Supply (Vcc/Vdd)▲▼Voltage - Supply (Vcc/Vdd)▲▼Operating Temperature▲▼Operating Temperature▲▼Internal Switch(s)▲▼Fault ProtectionPackage / CaseVoltage - Start Up▲▼Control FeaturesSupplier Device PackageDuty Cycle▲▼Mounting TypeFrequency - Switching▲▼Package / Case▲▼Package / Case▲▼
Texas Instruments
UCC3804PWTR
Converter Offline Boost, Buck, Flyback, Forward Topology Up to 1MHz 8-TSSOP
Boost, Buck, Flyback, Forward
12 V
8.300000190734863 V
85 °C
-40 °C
Current Limiting
8-TSSOP (0.173", 4.40mm Width)
12.5 V
Frequency Control
8-TSSOP
0.4900000095367432 ul
Surface Mount
1000000 Hz
Texas Instruments
UCC3804D
Converter Offline Boost, Buck, Flyback, Forward Topology Up to 1MHz 8-SOIC
Boost, Buck, Flyback, Forward
12 V
8.300000190734863 V
85 °C
-40 °C
Current Limiting
8-SOIC
12.5 V
Frequency Control
8-SOIC
0.4900000095367432 ul
Surface Mount
1000000 Hz
0.003899999894201755 m
Texas Instruments
UCC3804N
Converter Offline Boost, Buck, Flyback, Forward Topology Up to 1MHz 8-PDIP
Boost, Buck, Flyback, Forward
12 V
8.300000190734863 V
85 °C
-40 °C
Current Limiting
8-DIP
12.5 V
Frequency Control
8-PDIP
0.4900000095367432 ul
Through Hole
1000000 Hz
0.007619999814778566 m
0.007619999814778566 m
Texas Instruments
UCC3804DG4
Converter Offline Boost, Buck, Flyback, Forward Topology Up to 1MHz 8-SOIC
Boost, Buck, Flyback, Forward
12 V
8.300000190734863 V
85 °C
-40 °C
Current Limiting
8-SOIC
12.5 V
Frequency Control
8-SOIC
0.4900000095367432 ul
Surface Mount
1000000 Hz
0.003899999894201755 m

Key Features

• 100-µA typical starting supply current500-µA typical operating supply currentOperation up to 1 MHzInternal soft startInternal fault soft startInternal leading-edge blanking of the current sense signal1-A totem-pole output70-ns typical response from current-sense to gate drive output1.5% tolerance voltage referenceSame pinout as UC3842 and UC3842A100-µA typical starting supply current500-µA typical operating supply currentOperation up to 1 MHzInternal soft startInternal fault soft startInternal leading-edge blanking of the current sense signal1-A totem-pole output70-ns typical response from current-sense to gate drive output1.5% tolerance voltage referenceSame pinout as UC3842 and UC3842A

Description

AI
The UCC280x family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching mode power supplies with minimal parts count. These devices have the same pin configuration as the UCx84x family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input. The UCC280x family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching mode power supplies with minimal parts count. These devices have the same pin configuration as the UCx84x family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.