Electronic Components Datasheet Search |
|
SSL2101 Datasheet(PDF) 9 Page - NXP Semiconductors |
|
SSL2101 Datasheet(HTML) 9 Page - NXP Semiconductors |
9 / 22 page SSL2101_4 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 04 — 28 August 2009 9 of 22 NXP Semiconductors SSL2101 SMPS IC for dimmable LED lighting 8.6 Demagnetization The system operates in discontinuous conduction mode if the AUX pin is connected. As long as the secondary stroke has not ended, the oscillator will not start a new primary stroke. During the first tsup(xfmr_ring) seconds, demagnetization recognition is suppressed. This suppression may be necessary in applications where the transformer has a large leakage inductance and at low output voltages. 8.7 Overcurrent protection The cycle-by-cycle peak drain current limit circuit uses the external source resistor RSENSE to measure the current. The circuit is activated after the leading edge blanking time tleb. The protection circuit limits the source voltage over the RSENSE1 resistor to Vth(ocp)SOURCE, and thus limits the primary peak current. 8.8 Short-winding protection The short-winding protection circuit is also activated after the leading edge blanking time. If the source voltage exceeds the short-winding protection threshold voltage Vth(swp)SOURCE, the IC stops switching. Only a power-on reset will restart normal operation. The short-winding protection also protects in case of a secondary diode short circuit. 8.9 Overtemperature protection Accurate temperature protection is provided in the device. When the junction temperature exceeds the thermal shut-down temperature, the IC stops switching. During thermal protection, the IC current is lowered to the start-up current. The IC continues normal operation as soon as the overtemperature situation has disappeared. Fig 7. Typical phase of drain ringing at switch-on (at N × Vo =80V) 0 200 400 800 f (kHz) phase ( °) 40 20 −20 −40 0 014aaa573 600 1. RSENSE is the resistor between the SOURCE pin and GND |
Similar Part No. - SSL2101 |
|
Similar Description - SSL2101 |
|
|
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 |