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UCC2804-EP

ACTIVE

Enhanced Product Low-Power Bicmos Current-Mode Pwm

Product details

Topology Boost, Flyback, Forward Control mode Current Duty cycle (max) (%) 50 Switching frequency (max) (kHz) 1000 Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Leading edge blanking, Multi-topology, Soft start UVLO thresholds on/off (V) 12.5/8.3 Operating temperature range (°C) -40 to 125 Rating HiRel Enhanced Product Gate drive (typ) (A) 1 Vin (max) (V) 12.5
Topology Boost, Flyback, Forward Control mode Current Duty cycle (max) (%) 50 Switching frequency (max) (kHz) 1000 Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Leading edge blanking, Multi-topology, Soft start UVLO thresholds on/off (V) 12.5/8.3 Operating temperature range (°C) -40 to 125 Rating HiRel Enhanced Product Gate drive (typ) (A) 1 Vin (max) (V) 12.5
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Controlled Baseline
    • One Assembly
    • One Test Site
    • One Fabrication Site
  • Extended Temperature Performance of –55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product Change Notification
  • Qualification Pedigree
  • ESD Protection Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • 100 µA Typical Starting Supply Current
  • 500 µA Typical Operating Supply Current
  • Operation to 1 MHz
  • Internal Soft Start
  • Internal Fault Soft Start
  • Internal Leading-Edge Blanking of the Current Sense Signal
  • 1 Amp Totem-Pole Output
  • 70 ns Typical Response from Current-Sense to Gate Drive Output
  • 1.5% Tolerance Voltage Reference
  • Same Pinout as UC3842 and UC3842A

Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

  • Controlled Baseline
    • One Assembly
    • One Test Site
    • One Fabrication Site
  • Extended Temperature Performance of –55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product Change Notification
  • Qualification Pedigree
  • ESD Protection Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • 100 µA Typical Starting Supply Current
  • 500 µA Typical Operating Supply Current
  • Operation to 1 MHz
  • Internal Soft Start
  • Internal Fault Soft Start
  • Internal Leading-Edge Blanking of the Current Sense Signal
  • 1 Amp Totem-Pole Output
  • 70 ns Typical Response from Current-Sense to Gate Drive Output
  • 1.5% Tolerance Voltage Reference
  • Same Pinout as UC3842 and UC3842A

Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

The UCC2800/1/2/3/4/5 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 power supplies with minimal parts count.

These devices have the same pin configuration as the UC2842/3/4/5 family and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC2800/1/2/3/4/5 family offers choice of maximum duty cycle and critical voltage levels. Lower reference parts such as the UCC2803 and UCC2805 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line power supplies.

The UCC2800/1/2/3/4/5 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 power supplies with minimal parts count.

These devices have the same pin configuration as the UC2842/3/4/5 family and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC2800/1/2/3/4/5 family offers choice of maximum duty cycle and critical voltage levels. Lower reference parts such as the UCC2803 and UCC2805 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line power supplies.

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Technical documentation

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Type Title Date
* Data sheet UCC2800/2801/2802/2803/2804/2805-EP datasheet (Rev. F) 20 Oct 2010
* Radiation & reliability report UCC2800/1/2/3/4/5QDREP Reliability Report 31 Aug 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

UCCX804 & UCCx813-4 TINA-TI Startup Reference Design

SLUM226.TSC (666 KB) - TINA-TI Reference Design
Simulation model

UCCX804 & UCCx813-4 TINA-TI Steady State Reference Design

SLUM227.TSC (667 KB) - TINA-TI Reference Design
Simulation model

UCCX804 & UCCx813-4 TINA-TI Transient Spice Model

SLUM228.ZIP (28 KB) - TINA-TI Spice Model
Simulation model

UCCx804 & UCCx813-4 Unencrypted PSpice Transient Model

SLUM515.ZIP (6 KB) - PSpice Model
Simulation model

UCCx804, UCCx813-4 Families PSpice Transient Model (Rev. B)

SLUM082B.ZIP (88 KB) - PSpice Model
Package Pins Download
SOIC (D) 8 View options

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