 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
AL3050 Datasheet(PDF) 4 Page - Diodes Incorporated |
|
|
|||||||||||||||||||||||||||||
AL3050 Datasheet(HTML) 4 Page - Diodes Incorporated |
|
|
4 / 16 page  AL3050 Document number: DS38578 Rev. 2 - 2 4 of 16 www.diodes.com July 2016 © Diodes Incorporated AL3050 Electrical Characteristics (VIN = 3.6V, CTRL = High, TA = +25°C, unless otherwise specified.) Symbol Parameter Condition Min Typ Max Unit SUPPLY VOLTAGE (VIN PIN) VIN Input Voltage - 2.7 - 5.5 V IQ Quiescent Current Device enable, no switching and no load (VFB = 0.4V) - 0.3 0.5 mA Device enable, switching 750kHz and no load (VFB = 0V) - 0.5 1.65 ISHDN Shutdown Supply Current CRTL = GND - 0.1 1 μA UNDER VOLTAGE LOCKOUT VUVLO Input UVLO Threshold VIN ramp down - 2.2 2.35 V VIN ramp up - 2.5 2.65 V VHYS Input UVLO Hysteresis - - 300 - mV ENABLE CONTROL VCTRL-H CTRL Logic High Voltage - 1.2 - - V VCTRL-L CTRL Logic Low Voltage - - - 0.4 V RCTRL CTRL Pull Down Resistor - - 300 - kΩ tOFF (Note 5) CTRL Pulse With to Shutdown CTRL from high to low 3.5 - - ms FEEDBACK AND REFERENCE (FB PIN) VREF Feedback Reference Voltage Duty = 100% 194 200 206 mV IFB Feedback Input Bias Current VFB = 200mV - - 2 μA tREF (Note 5) VREF Filter Time Constant - - 230 - μs HIGH FREQUENCY OSCILLATOR fOSC Oscillator Frequency - 600 750 900 kHz DMAX (Note 5) Maximum Duty Cycle VFB = 0V, measured on the drive signal of the switch MOSFET 88 94 - % POWER SWITCH AND DIODE RDS(ON) N-MOSFET On-Resistance VIN = 3.6V - 0.56 1 Ω VF Power Diode Forward Voltage IDIODE = 0.2A - 0.75 1 V ILEAK_SW SW Pin Leakage Current VSW = 28V - 0.1 2 μA PROTECTION LOGIC ILIM N-MOSFET Current Limit D = DMAX 0.6 0.7 0.84 A ILIM_OPEN LED Open Current Limit LED open - 0.3 - A VOVP Open LED Protection Threshold Measured on the VOUT pin 27 28.2 30 V TOTSD (Note 5) Thermal Shutdown Threshold - - +160 - ºC THYS (Note 5) Thermal Shutdown Hysteresis - - +20 - ºC DIGITAL DIMMING TIMING (Note 5) t1W_DET Digital Dimming Detection Time CTRL pin low 450 - - μs t1W_DELAY Digital Dimming Detection Delay - 100 - - μs t1W_WIN Digital Dimming Detection Window Time Measured from CTRL High 3.5 - - ms tSTART Start Time of Program Stream - 3.5 - - μs tEOS End Time Of Program Stream 3.5 - 600 μs tH_LB High Time Low Bit Logic 0 3.5 - 300 μs tL_LB Low Time Low Bit Logic 0 2×tH_LB - 600 μs tH_HB High Time High Bit Logic 1 2×tL_HB - 600 μs tL_HB Low Time High Bit Logic 1 3.5 - 300 μs VACKN Acknowledge Output Voltage Low Open Drain, RPULL-UP=15KΩ to VIN - - 0.4 V tVAL_ACKN Acknowledge Valid Time - - - 3.5 μs tACKN Duration of Acknowledge Condition - - - 900 μs Note: 5. Guaranteed by design. |
|
|
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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
