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16 SOIC
Integrated Circuits (ICs)

UCC28221D

Active
Texas Instruments

AUTOMOTIVE DUAL INTERLEAVED 2MHZ PWM CONTROLLER WITH PROGRAMMABLE MAX DUTY CYCLE 13V/8V UVLO

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Search across all available documentation for this part.

DocumentsUCC2822x Interleaved Dual PWM Controller With Programmable Max Duty Cycle datasheet (Rev. G)Power Management Guide 2018 (Rev. R)+3
16 SOIC
Integrated Circuits (ICs)

UCC28221D

Active
Texas Instruments

AUTOMOTIVE DUAL INTERLEAVED 2MHZ PWM CONTROLLER WITH PROGRAMMABLE MAX DUTY CYCLE 13V/8V UVLO

Deep-Dive with AI

DocumentsUCC2822x Interleaved Dual PWM Controller With Programmable Max Duty Cycle datasheet (Rev. G)Power Management Guide 2018 (Rev. R)+3

Technical Specifications

Parameters and characteristics for this part

SpecificationUCC28221D
Control FeaturesSoft Start
Duty Cycle75 %
Fault ProtectionOver Voltage, Current Limiting
Frequency - Switching2 MHz
Internal Switch(s)False
Mounting TypeSurface Mount
Operating Temperature [Max]150 °C
Operating Temperature [Min]-55 °C
Output IsolationIsolated
Package / Case16-SOIC
Package / Case0.154 in, 3.9 mm
Supplier Device Package16-SOIC
TopologyFlyback
Voltage - Supply (Vcc/Vdd) [Max]14.5 V
Voltage - Supply (Vcc/Vdd) [Min]8.4 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyN/A 0$ 4.11
16544$ 4.11
Tube 240$ 4.14
Texas InstrumentsTUBE 1$ 4.69
100$ 3.83
250$ 3.01
1000$ 2.55

Description

General part information

UCC28221 Series

The UCC28220 and UCC28221 are a family of BiCMOS interleaved dual channel PWM controllers. Peak current mode control is used to ensure current sharing between the two channels. A precise maximum duty cycle clamp can be set to any value between 60% and 90% duty cycle per channel.

The UCC28220 has an UVLO turnon threshold of10 V for use in 12-V supplies while UCC28221 has a turnon threshold of 13 V for systems needing wider UVLO hysteresis. Both have 8-V turnoff thresholds.

Additional features include a programmable internal slope compensation with a special circuit which is used to ensure exactly the same slope is added to each channel and a high-voltage 110-V internal JFET for easier start-up for the wider hysteresis UCC28221 version.