Zakładka z wyszukiwarką danych komponentów |
|
MAX16820EVKIT Arkusz danych(PDF) 2 Page - Maxim Integrated Products |
|
MAX16820EVKIT Arkusz danych(HTML) 2 Page - Maxim Integrated Products |
2 / 5 page MAX16820 Evaluation Kit 2 _______________________________________________________________________________________ Quick Start Recommended Equipment • 24V, 1.5A DC power supply • Voltmeter • LED load rated for at least 1A and a total LED for- ward voltage drop VFLED ≤ 20V Procedure The MAX16820 EV kit is fully assembled and tested. Follow the steps below to verify board operation. Caution: Do not turn on the power supply until all connections are completed. 1) Verify that a shunt is installed on JU1 (MAX16820 disabled). 2) Set the DC power-supply output to 24V. 3) Disable the power-supply output. 4) Connect the power-supply ground to the GND pad on the EV kit. 5) Connect the power-supply output to the VIN pad on the EV kit. 6) Connect the LED load’s anode to the LED+ output pad and the cathode to the LED- output pad. 7) Enable the power supply. 8) Remove the shunt on JU1 (MAX16820 enabled). 9) Measure the voltage across the LED+ and LED- pads and verify that the voltmeter reads approxi- mately VFLED. Detailed Description The MAX16820 EV kit features the MAX16820 controller and demonstrates a step-down, constant-current, hys- teretic controlled regulator for driving HB LEDs. The MAX16820 EV kit output is current-controlled by moni- toring the voltage across external high-side sense resistor R1 in series with the LED output. In hysteretic mode, the MAX16820 EV kit is configured to output an LED current of 1A ±6% (ILED). The MAX16820 VIN ris- ing and falling UVLO threshold points are 5V (max) and 4.5V (min), respectively. The EV kit can operate from a 5V to 28V supply capable of 1.5A. Typically, capacitor C1 is not required if the power sup- ply is relatively close to the EV kit. If long wires are used to connect the power supply to the EV kit, install up to 10µF of bulk capacitance at the surface-mount 2220 pads provided for C1. Jumper Selection Enable EV kit jumper JU1 enables the MAX16820. See Table 1 for JU1 configuration. Table 1. MAX16820 Enable (Jumper JU1) Component Suppliers SUPPLIER PHONE WEBSITE Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com IRC 361-992-7900 www.irctt.com Murata Mfg. Co., Ltd. 770-436-1300 www.murata.com Sumida Corp. 847-545-6700 www.sumida.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX16820 when contacting these component suppliers. SHUNT POSITION DIM PIN EV KIT FUNCTION Installed Connected to GND MAX16820 disabled Not installed Pulled to VCC through resistor R2 MAX16820 enabled (DIM pin can be used for PWM dimming) |
Podobny numer części - MAX16820EVKIT |
|
Podobny opis - MAX16820EVKIT |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów 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 |