 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
UCC28230DRNR Datasheet(PDF) 8 Page - Texas Instruments |
|
||||||||||||||||||||||||||||||
UCC28230DRNR Datasheet(HTML) 8 Page - Texas Instruments |
|
|
8 / 46 page  UCC28230 UCC28231 SLUS814A – FEBRUARY 2008 – REVISED JUNE 2008 ................................................................................................................................................... www.ti.com TERMINAL FUNCTIONS TERMINAL I/O FUNCTION DFN-12 TSSOP-14 NAME PIN# PIN# ±1.5% accurate 5 V for UCC28230 and 3.3 V for UCC28231, 10-mA output reference voltage with short circuit protection that can be used for fixed switching frequency setting and/or for 1 1 VREF O housekeeping microcontroller. Place decoupling capacitor in 1 µF to 2.2 µF range from this pin to GND. Off time control threshold pin uses a resistor divider to set current level as percentage of current 2 2 OST I limit threshold. Nominal off time TOFF and dead time TDT set pin. An external resistor connected between this pin 3 3 OS I and GND sets the dead time and nominal off time. 4 NC Not connected pin, TSSOP-14 only. Oscillator timing input pin. The external resistor which is connected between this pin and VIN sets 4 5 RT I the oscillator frequency which varies with VIN. Tying the external resistor to VREF sets fixed frequency operation independent of VIN. Input to adjustable soft-start,and hiccup mode circuit. Place soft-start capacitor from this pin to 5 6 SS I/O GND. The internal charge/discharge current ISS and an external capacitor value set the soft-start timing, duration of cycle-by-cycle current limit and controller turn-off time for hiccup mode operation. 6 7 CS I Current sensing pin used for cycle-by-cycle current limit, short circuit protection and off time control. 8 AGND Analog ground, TSSOP-14 only. 7 9 GND Ground pin connected to thermal pad. All signals are referenced to this node. 8 10 O2_DIN O 0.2-A sink/source switching output pin to an external driver providing 1-D pulse. 9 11 O2_D O 0.2-A sink/source switching output pin to an external driver providing D pulse. 10 12 O1_DIN O 0.2-A sink/source switching output pin to an external driver providing 1-D pulse. 11 13 O1_D O 0.2-A sink/source switching output pin to an external driver providing D pulse. Connect this pin to a 7-V to 17-V bias supply. Place a high quality at least 1- µF ceramic bypass 12 14 VDD I capacitor from this pin to GND. 8 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): UCC28230 UCC28231 |
Similar Part No. - UCC28230DRNR |
|
Similar Description - UCC28230DRNR |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
