Electronic Components Datasheet Search |
|
SC4612MLTRT Datasheet(PDF) 11 Page - Semtech Corporation |
|
SC4612MLTRT Datasheet(HTML) 11 Page - Semtech Corporation |
11 / 24 page 11 2007 Semtech Corp. www.semtech.com SC4612 POWER MANAGEMENT Applications Information (Cont.) Below are examples of calculating the OCP trip voltages. Low Side R DS_ON Current Limit 1. Ra, Rb - Not installed: 2 R Vphase mV 100 3 R mV 100 V 75 . 2 − = − solving for: V PHASE = -100mV, therefore the circuit will trip @ RDS_ON x ILOAD = 100mV 2. To lower trip voltage - install Rb. For example: Rb = 13k ) 1 R Rb ( || 2 R Vphase mV 100 3 R mV 100 V 75 . 2 + − = − solving for: V PHASE = -20mV, obviously more sensitive! RDS_ON x ILOAD = 20mV 3. To increase trip voltage - install Ra. For example: Ra = 800k; V DRIVE = 7.8V typ. 2 R Vphase mV 100 1 R Ra Vdrive 3 R mV 100 V 75 . 2 − = + + − solving for: V PHASE = -200mV. Current limit has doubled compared to original conditions. NOTE! Allow for tempco and R DS_ON variation of the MOSFET - see “overcurrent protection” information on page 11 in the datasheet. PHASE pin 2.75V OCP SC4612 R5 10k R1 2k Ra Rb R4 260k R3 130k R2 10k C2 5pF C1 2pF ILIM pin DRV pin COMP +100mV L R load Vin Iload@Toff |
Similar Part No. - SC4612MLTRT |
|
Similar Description - SC4612MLTRT |
|
|
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 |