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MFG:ROHM  Package Cooled:SOP  

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Part Number: BD7851FP

 

MFG: ROHM

Package Cooled: SOP

 

Description: The BD7851FP is a constant-current output LED driver that incorporates a shift register and latch circuit, which drives...


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BD7851FP General Description


The BD7851FP is a constant-current output LED driver that incorporates a shift register and latch circuit, which drives 16 LED lamps. Output value of the constant-current can be set from 1mA to 50mA (Max.) by a single external resistor.


In addition, this IC incorporates a thermal-shut-down circuit which detects the IC temperature rising and turns the constant-current output OFF.

BD7851FP Maximum Ratings

Parameter Symbol Limits Unit
Power supply voltage Vcc 0 ~ 7.0 V
Input voltage VI 0.3 ~ Vcc+0.3 V
Output voltage Vo 0 ~ 10 V
Power dissipation PD * 1450 W
Storage temperature range Tstg 55 ~ +150  
Operating temperature range Topr 20 ~ +85  

*Derating : 11.6mW/ for operation above Ta=25  PCB (70mm*70mm*1.6mm glass epoxy board)  

BD7851FP Features

 1)  Drive capability: constant-current output 50mA (Max.)
 2)  Can set the constant-current output value by one external resistor.
 3)  3 wire serial (Data, Clock, Latch) control from micro computer
 4)  With ENABLE pin
 5)  Power ON reset function
 6)  Built-in thermal-shut-down circuit
 7)  Low power consumption
 8)  Cascade connection
 9)  Allows multiple LED displays due to the dynamic operation.
10) Small power package HSOP25

BD7851FP Typical Application

All sets having micro computers and LED displays

BD7851FP Connection Diagram

BD7851FP Connection Diagram

BD7851FP datasheet

BD7851FP
PDF/DataSheet Download

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