UCC3804D Texas Instruments power-management (SOIC) In Stock
UCC3804D is a current-mode PWM controller by Texas Instruments for DC/DC converters, featuring up to 1MHz switching, 1A gate drive, cycle-by-cycle current limit, UVLO protection. From $1.37/unit, in-stock, ships globally, 1-piece MOQ.
- Manufacturer
- Texas Instruments
- Package
- SOIC
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC3804D Datasheet PDF
- Category
- power-management
- Price
- From $1.3650(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control up to 1MHz oscillator frequency
- 1A peak gate drive current for fast MOSFET switching
- Cycle-by-cycle current limiting with leading-edge blanking
- Undervoltage lockout (UVLO) with built-in hysteresis
- 8-pin SOIC package; wide -40 to +85 deg C operating range
- Compatible with UC3804 family for easy design migration
Applications
Widely used in isolated and non-isolated DC/DC converters for telecom power supplies, industrial equipment, and distributed power systems. Suitable for flyback, forward, and boost topologies requiring precise current-mode control and high-frequency switching up to 1MHz.
Specifications
| Supply Voltage (Vcc) | 10V |
| Max Oscillator Frequency | 1MHz |
| Gate Drive Current (Peak) | 1A |
| Operating Temperature | -40 to +85deg C |
| Package | SOIC-8 |
| Topology | Current-Mode PWM |
| Input Voltage Range | 7 to 14V |
| Package | SOIC |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the UCC3804D compare to the UC3842 PWM controller?
The UCC3804D is an enhanced current-mode PWM controller similar to the UC3842 family but with lower startup current (typically 300µA vs 1mA), making it better suited for high-voltage off-line designs. Both support up to 1MHz switching and 8-pin SOIC packages, but the UCC3804D provides a pin-compatible, lower-power alternative.
Can the UCC3804D drive MOSFETs directly?
Yes. The UCC3804D provides up to 1A peak gate drive current, sufficient to directly drive most low- to medium-power MOSFETs in flyback, forward, or boost converter designs. For larger MOSFETs or paralleled switches, an external gate driver buffer is recommended to minimize switching losses.
Which converter topologies are supported by the UCC3804D?
The UCC3804D supports flyback, forward, boost, and buck-boost topologies in continuous or discontinuous conduction mode. Its cycle-by-cycle current limit and oscillator up to 1MHz make it versatile for isolated and non-isolated DC/DC converters in industrial and telecom applications.
Minimum order quantity and lead time for UCC3804D?
Minimum order quantity is 1 piece. FindMyChip stocks UCC3804D for immediate shipment with global delivery, priced from $1.37/unit at volume (1050+ pieces) up to $4.50 for single-unit orders. Submit an RFQ for lead time confirmation on large quantities.
Package options available for the UCC3804D?
UCC3804D is available in the 8-pin SOIC (D package) with 1.27mm pitch. Texas Instruments also offers the UCC3804DR in tape-and-reel (2500 pieces/reel) for automated SMT assembly, and the UCC3804N in 8-pin PDIP for through-hole applications.
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Why Buy from FindMyChip
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.5000 | $4.50 |
| 8+ | $3.3000 | $26.40 |
| 24+ | $3.0000 | $72.00 |
| 75+ | $2.4900 | $186.75 |
| 300+ | $1.4469 | $434.06 |
| 1050+ | $1.3650 | $1433.28 |
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