Key facts
- Brand
- UNITRODE
- Model
- UCC3581
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-01
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Texas Instruments UCC1581/UCC2581/UCC3581 Voltage Mode PWM Controller Datasheet
The document describes the UCC1581, UCC2581, and UCC3581 voltage mode pulse width modulators designed for low power isolated DC-DC converters, such as those used in Subscriber Line Power (ISDN I.430). These controllers feature BiCMOS circuitry for low startup and operating current, capable of driving power MOSFETs at frequencies up to 100kHz. Key features include programmable minimum and maximum duty cycles with cycle skipping, an output current capability of 1A peak source and sink, and programmable soft start and oscillator frequency.
Read onlineUNITRODE UCC3581 specifications
| Startup Current | 85 µA |
|---|---|
| Operating Current | 300 µA |
| Output Current | 1A Peak Source and Sink |
| Maximum Frequency | 100kHz |
| Reference Output Voltage | 4.0V |
| Supply Voltage | 15V |
| Operating Temperature (UCC1581) | -55°C to +125°C |
| Operating Temperature (UCC3581) | 0°C to +70°C |
Source: Texas Instruments UCC1581/UCC2581/UCC3581 Voltage Mode PWM Controller Datasheet
All UNITRODE UCC3581 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the startup current of the UCC3581?
The startup current is 85 µA.
From: Texas Instruments UCC1581/UCC2581/UCC3581 Voltage Mode PWM Controller Datasheet
What is the maximum output current capability?
The output current capability is 1A peak source and sink.
From: Texas Instruments UCC1581/UCC2581/UCC3581 Voltage Mode PWM Controller Datasheet