 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
HT82P604B Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
|
|
|||||||||||||||||||||||||||||
HT82P604B Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
|
|
1 / 7 page  HT82P604B DC-DC Converter 1 March 23, 2000 Preliminary Pentium is a trademark of Intel Corporation Features · Operating voltage: 5V~12V · Drives two N-Channel MOSFETs · Simple single-loop control design - Voltage-mode PWM control · Fast transient response - High-bandwidth error amplifier - Full 0% to 100% duty ratio · Excellent output voltage regulation - ±1% over line voltage and temperature · 5 bit digital-to-analog output voltage selection - Wide range -1.3V to 3.5V - 0.1V binary steps from 2.1V to 3.5V - 0.05V binary steps from 1.3V to 2.05V · Power-good output voltage monitor · Over-voltage and over-current sensing ele- ment, uses MOSFET¢srDS (ON) · Small converter size - Constant frequency operation - 200kHz free-running oscillator program- mable from 50kHz to over 1MHz Applications · Power supply for PentiumTM, PentiumTM Pro, PowerPCTM and AlphaTM Microproces- sors · High-power5Vto3.xVDC-DCregulators · Low-voltage distributed power supplies General Description The HT82P604B provides complete control and protection for a DC-DC converter optimized for high performance microprocessor applications. It is designed to drive two N-Channel MOSFETs in a synchronous-rectified buck to- pology. The HT82P604B integrates all of the control, output adjustment, monitoring and protection functions into a single package. The output voltage of the converter is easily ad- justed and precisely regulated. The HT82P604B includes a 5-input digital-to-analog converter (DAC) that adjusts the output voltage from 2.1V to 3.5V in 0.1V increments and from 1.3V to 2.05V in 0.05V steps. The precision reference and voltage-mode regulator hold the selected output voltage to within ±1% over temperature andlinevoltagevariations. The HT82P604B provides simple, single feed- back loop, voltage-mode control with fast tran- sient response. It includes a 200kHz free-running triangle-wave oscillator that is adjustable from below 50kHz to over 1MHz. The error amplifier features a 15MHz gain-bandwidth product and 6V/ms slew rate which enables high converter bandwidth for fast transient performance. The resulting PWM duty ratio ranges from 0% to 100%. The HT82P604B monitors the output voltage with a window comparator that tracks the DAC output and issues a Power Good signal when the output is within ±10%. The HT82P604B protects against over-current conditions by in- hibiting PWM operation. Built-in over-voltage protection triggers an external SCR to crowbar the input supply. The HT82P604B monitors the current by using the rDS (ON) of the upper MOSFET which eliminates the need for a cur- rent sensing resistor. |
Similar Part No. - HT82P604B |
|
Similar Description - HT82P604B |
|
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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 |
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
