 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
GM3842AS8T Datasheet(PDF) 1 Page - Gamma Microelectronics Inc. |
|
|
|||||||||||||||||||||||||||||
GM3842AS8T Datasheet(HTML) 1 Page - Gamma Microelectronics Inc. |
|
|
1 / 19 page  Description GM384XA series is high performance with fixed-frequency current mode PWM controllers. They are specially de- signed for off-Line and DC-to-DC converter applications. They require minimal external components to precisely tai- lor performance in a wide variety of applications. GM384XA series includes a trimmed oscillator for precise duty cycle control, a temperature-compensated reference, high gain error amplifier, a current-sensing comparator, and a high-current totem pole output for driving a power MOSFET. On-chip protection features include undervoltage lockouts with hysteresis for both input and reference, cycle-by-cycle current limiting, programmable output deadtime, and a latch for single pulse metering. All these are in a simple DIP-8 or SOP-8 package! GM3842A and GM3844A have UVLO thresholds of 16V (on)/10V(off); GM3843A and GM3845A have UVLO thresh- olds of 8.4V (on)/ 7.6V (off). GM3842A and GM3843A oper- ate within 100% duty cycle; GM3844A and GM3845A oper- ate within 50% duty cycle. Features Low Start-Up and Operating Current Automatic Feed Forward Compensation Current Mode Operating Frequency up to 500kHz Trimmed Oscillator Discharge Current for Precise Duty Cycle Control Latching PWM for Cycle-By-Cycle Current Limiting Undervoltage Lockout with Hysteresis High Current Totem Pole Output The GM384XA Have Start-up Current 0.17mA www.gammamicro.com 1 SIMPLIFIED BLOCK DIAGRAM 1 2 4 8 5 6 7 3 5 7 + - Error Amplifier R R 5.0V REFERENCE VCC Undervoltage LOCKOUT VREF Undervoltage LOCKOUT OSCILLATOR Latching PWM V CC V C Output Power Ground Current Sense Input V ref R/ C T T Voltage Feedback Input Output Compensation GND |
Similar Part No. - GM3842AS8T |
|
Similar Description - GM3842AS8T |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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
