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Issue 2 – July 2010 

 

 

 

 

 

              

   www.diodes.com 

© Diodes Incorporated, 2010 

 

  

ZXLD1370EV2 BUCK/BOOST LED DRIVER 

USER GUIDE 

 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Fig.1  ZXLD1370EV2  Evaluation board connection diagram 

8-48V 2A

DC PSU

0-1.5A DC

DVM

BUCK/BOOST

1 - 15 LEDs

1.5A

0V

4.5V

Open Drain output

125mV = 10%

2.5V = 200%

-t°

GND

0 – 4.5V Status steps

Thermal connection

Содержание ZETEX ZXLD1370EV2

Страница 1: ...d 2010 ZXLD1370EV2 BUCK BOOST LED DRIVER USER GUIDE Fig 1 ZXLD1370EV2 Evaluation board connection diagram 8 48V 2A DC PSU 0 1 5A DC DVM BUCK BOOST 1 15 LEDs 1 5A 0V 4 5V Open Drain output 125mV 10 2 5...

Страница 2: ...ZXLD1370EV2 Issue 2 July 2010 www diodes com Diodes Incorporated 2010 2 Fig2 Schematic diagram FLAG...

Страница 3: ...eeling diode 3A 100V PowerDI5 PDS3100 Diodes www diodes com Z1 47V 300mW Zener Diode SOT23 BZX84C47 Diodes www diodes com L1 33uH 2 3A MS1246 333MLB NPIS24H330MTRF 744 7715330 Coilcraft NIC Comps Wurt...

Страница 4: ...the input of a comparator The comparator drives the gate of the external NMOS switch transistor via GATE When the NMOS switch is on current flows from VIN via R1 R2 inductor and switch to ground and...

Страница 5: ...ZXLD1370EV2 Issue 2 July 2010 www diodes com Diodes Incorporated 2010 5 Fig 3 Waveforms for Boost and Buck boost modes...

Страница 6: ...ng PWM operation the device remains powered up and only the output switch is switched by the control signal The device can be shut down by taking the PWM pin to 0 4V with a short to 0V or suitable ope...

Страница 7: ...ZXLD1370EV2 Issue 2 July 2010 www diodes com Diodes Incorporated 2010 7 BOARD LAYOUT...

Страница 8: ...Diodes Incorporated products for any unintended or unauthorized application Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims damages expenses...

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