UCC2830-4 Unitrode Semiconductor, UCC2830-4 Datasheet
UCC2830-4
Related parts for UCC2830-4
UCC2830-4 Summary of contents
Page 1
... The voltage and current amplifiers have a 3MHz gain bandwidth product to sat- isfy high performance system requirements. The internal current sense ampli- fier permits the use of a low value current sense resistor, minimizing power loss. The oscillator frequency is fixed internally at 100kHz, 200kHz, or 400kHz, UCC2830-4/-5/-6 UCC3830-4/-5/-6 (continued) UDG-96188-2 ...
Page 2
... VIN < 13.2V 0mA, 0°C < T VREF 10.8V < VIN < 13.2V 0mA, –25°C < T VREF DX Pin Floating DX Pin Tied to GND % Over COMMAND Voltage (Note 1 Open GND OV, OVP, UV Combined 2 UCC2830-4/-5/-6 UCC3830-4/-5/-6 Frequency Table Frequency 100kHz 200kHz 400kHz X X MIN TYP MAX UNITS 10 ...
Page 3
... CAM CAO/ENBL COMP 10.8V < VIN < 15V I = –100mA GATE I = 100mA GATE C = 3.3nF GATE C = 3.3nF GATE Measured at Voltage EA Output SENSE COMMAND COMMAND SENSE 3 UCC2830-4/-5/-6 UCC3830-4/-5/-6 MIN TYP MAX UNITS 5 8 470 –12 –8.5 – –0.5 –0.02 0 –0.5 – ...
Page 4
... VREF powers the D/A converter and also provides a threshold voltage for the UVLO comparator. For best reference stability, bypass VREF directly to GND with a low ESR, low ESL capacitor of at least 0. UCC2830-4/-5/-6 UCC3830-4/-5/- where CSA ...
Page 5
... Enabling/Disabling the UCC3830-x Gate Drive The CAO/ENBL pin can be used to disable the UCC3830 gate drive by forcing this pin below 0.8V, as shown in Figure 4. Bringing the voltage below the valley of the PWM oscillator ramp will insure a 0% duty cycle, effec- 5 UCC2830-4/-5/-6 UCC3830-4/-5/-6 1000000 10000000 100000000 FREQUENCY [Hz] ...
Page 6
... Enabled Enabled Enabled Enabled Enabled Enabled UCC2830-4/-5/-6 UCC3830-4/-5/-6 Command GATEHI/GATELO D0 Voltage Status 1 2.000 Note 1 0 2.100 Enabled 1 2.200 Enabled 0 2.300 Enabled 1 2.400 Enabled 0 2.500 Enabled 1 2.600 Enabled 0 2.700 Enabled 1 2 ...
Page 7
... UCC3830-x when the Pentium® Pro requires lower bus voltages. 5V, 2. UCC2830-4/-5/-6 UCC3830-4/-5/- LOAD CURRENT [A] Figure 7. Efficiency of UCC3830-5 200kHz Demo Kit at 2.8V Ouput 14 16 UDG-96190-1 ...
Page 8
... Radial Can 10x20mm Radial Can 10x20mm Radial Can 10x20mm Radial Can 10x20mm Radial Can 10x20mm Radial Can 10x20mm Radial Can SMD Power Package 8 UCC2830-4/-5/-6 UCC3830-4/-5/-6 PACKAGE SOIC-20 Wide SPRAGUE Size A EIA Size D SMD 1206 SMD 0603 SMD 0603 SMD 0603 SMD ...