UCC1801J Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
UCC1801J is a Texas Instruments current-mode PWM switching controller in an 8-pin DIP package with 8.2 V to 12 V input range and only 100 µA startup current. It integrates a gate driver and protection features for power-supply design. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC1801J Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control with programmable oscillator up to 500 kHz for tight loop regulation in isolated and non-isolated DC-DC converters
- Ultra-low 100 µA typical starting supply current minimizes power loss during startup in battery-powered and low-standby-power applications
- Integrated cycle-by-cycle current limiting, soft-start, and under-voltage lockout (UVLO) with 8.2 V turn-on threshold for robust protection
Applications
UCC1801J is used in offline flyback and forward converters, DC-DC modules, and power-supply units requiring current-mode PWM control with precise regulation from an 8.2 V to 12 V bias rail. Its 8-pin DIP form factor and integrated protection simplify board layout for industrial power supplies, telecom equipment, and battery chargers operating at switching frequencies up to 500 kHz.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 12V |
| Input Voltage-Min | 8.2V |
| Input Voltage-Nom | 10V |
| JESD-30 Code | R-GDIP-T8 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 25mA |
| Supply Voltage-Max (Vsup) | 12V |
| Supply Voltage-Nom (Vsup) | 10V |
| Surface Mount | NO |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 1000kHz |
| Technology | BICMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range and maximum switching frequency does the UCC1801J support?
UCC1801J operates from an 8.2 V minimum to 12 V maximum input supply and supports switching frequencies up to 500 kHz, giving designers flexibility to optimize transformer size versus switching loss in current-mode PWM DC-DC converter designs.
How does the UCC1801J 100 µA startup current benefit battery-operated or low-standby power supplies?
The 100 µA typical starting supply current of UCC1801J dramatically reduces the power drawn from the bias rail during startup and light-load standby, extending battery runtime and meeting sub-1 W standby-power requirements common in consumer and industrial equipment with energy-efficiency mandates.
Which protection features are built into UCC1801J to guard against overload and short-circuit conditions?
UCC1801J integrates cycle-by-cycle current limiting that reacts within a single switching period, a programmable soft-start capacitor that limits inrush during power-up, and an under-voltage lockout (UVLO) that disables the gate driver below 8.2 V, collectively protecting the power stage from overload, short-circuit, and brown-out faults without external circuitry.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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