Electronic Components Datasheet Search |
|
HT7938 Datasheet(PDF) 2 Page - Holtek Semiconductor Inc |
|
HT7938 Datasheet(HTML) 2 Page - Holtek Semiconductor Inc |
2 / 11 page Pin Assignment Pin Description Pin Name I/O Description EN I Shutdown & Dimming control input. Don ¢t allow this pin to float. GND ¾ Signal Ground. FB I Feedback pin. Reference voltage. The HT7938 feedback voltage is 200mV. Connect the sense resistor from FB to GND to set the LED current. Calculate resistor value according to R mV I FB LED = 200 . SW I Switching pin. Internal power MOSFET drain. Connected to inductor and diode. VIN I Input supply pin. The input supply pin for the IC. Connect VIN to a supply voltage between 2.6V~5.5V. OVP O Over voltage protection pin which is connected to the output. Absolute Maximum Ratings Input Voltage...........................................................6.0V SW Voltage..............................................................46V FB Voltage ..............................................................6.0V EN ..........................................................................6.0V OVP Voltage ............................................................46V Operating Temperature Range ............. -40°Cto+85°C Storage Temperature Range .............. -55°C to +150°C Maximum Junction Temperature........................+150 °C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. HT7938 Rev 1.10 2 March 19, 2010 S W G N D T o p V i e w V I N E N F B 1 2 3 4 6 5 O V P H T 7 9 3 8 S O T 2 3 - 6 - A |
Similar Part No. - HT7938 |
|
Similar Description - HT7938 |
|
|
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 |