Leadtrend Technology LD5850
The LD5850 is a wide-input asynchronous current mode boost controller, capable to operate in the range between 9V and 28V and to generate 14V of voltage to the GATE pin of MOSFET to reduce thermal loss. The current mode control architecture enhances transient response and simplifies the loop compensation. The DIM input allows the brightness control for LED Backlight or LED lighting.| Part No. | LD5850 |
|---|---|
| Datasheet | LD5850 Download |
| Manufacturer |  Leadtrend Technology |
| Description | Boost Controller |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The Device also features internal slope compensation, input voltage under-voltage lockout, output voltage short circuit protection, cycle-by-cycle current limit and thermal shutdown protection.FEATURES
● Wide Input Range: 9V to 28V● Current Mode Control
● 0.3V LED Feedback Current Sensing Reference
● Fixed Switching Frequency
● PWM Dimming Input
● Internal Slope Compensation
● Cycle-by-Cycle Current Limit
● Over Temperature Protection
APPLICATIONS
● LED TV Backlight● LED Monitor Backlight
● LED lighting Typical Application VIN VOUT RA VCC 124 VCC DRV CS DIM 8 DIM LD5850 FB 5 OVP COMP GND 763 COVP RCS RFB RB Fig. 1 Application circuit Leadtrend Technology Corporation LD5850-DS-00 November 2012 1 Pin Configuration VSOCPC-8 (TOP VIEW) DIM OVP COMP FB 8765 TOP MARK YYWWPP 1 YY2WW3 PP4 YY: Year code WW: Week code PP: Production code LD5850 VCC DRV GND CS Ordering Information Part number Package LD5850 GS SOP-8 The LD5850 is ROHS compliant/ Green Packaged. TOP MARK LD5850 GS Shipping 2500 /tape & reel Pin Descriptions PIN NAME 1 VCC 2 DRV 3 GND 4 CS 5 FB 6 COMP 7 OVP 8 DIM FUNCTION Power source VCC pin.
