PDF, 808 Kb, Language: en, File uploaded: Jul 2, 2019, Pages: 8
Linear Constant Current Regulated LED Driver
Extract from the document
TSCR400CX6 / TSCR402CX6
Taiwan Semiconductor Linear Constant Current Regulated LED Driver
DESCRIPTION FEATURES The TSCR400 & TSCR402 are High-Side Constant ● LED drive current preset: Current Regulator (CCR) for linear LED driving. The
device regulates with a preset TSCR400 0.1mA and ● TSCR400CX6: 0.1mA ● TSCR402CX6: 20mA ● Continuous output current up to 65mA with an TSCR402 20mA nominal that can be adjusted with an
external resistor up to 65mA. It is designed for driving external resistor LEDs in strings and will reduce current at increasing ● Easy paralleling of drivers to increase current temperatures to self-protect. Operating as a series ● Supply voltage up to 40V linear CCR for LED string current control, it can be ● Good temperature coefficient vs. output current used in multiple applications, as long as the maximum ● Compliant to RoHS Directive 2011/65/EU and in supply voltage to the device is 85µA Battery Voltage TSCR402 IOUT>18mA Output Current
vs. Temperature TSCR400 VS=3V TSCR402 VS=10V Output Current
vs. Supply Voltage TSCR400 VS=3V TSCR402 VS=10V Supply Current
Internal Resistor Output Current SYMBOL MIN TYP MAX UNIT VBR 40 -V -60 -µA -150 -µA 5.85 6.5 7.15 kΩ 38 44 52 Ω 0.085 0.1 0.115 18 20 22 -0.65 -0.85 -1.6 -1.4 --0.07 --0.07 -0.33 -0.33 -IS RINT
IOUT VDROP VSmin
ΔIOUT/IOUT
ΔIOUT/IOUT 2 mA V V %/°C %/V Version: B1708 TSCR400CX6 / TSCR402CX6
Taiwan Semiconductor
ORDERING INFORMATION
PART NO. PACKAGE PACKING TSCR400CX6 RFG SOT-26 3,000pcs / 7"Reel TSCR402CX6 RFG SOT-26 3,000pcs / 7"Reel FUNCTION BLOCK
VS Vref RINT
REXT Regulator VBG TSCR402
TSCR400 GND OUT PIN DESCRIPTION
PIN NO. NAME FUNCTION 1 GND Power ground 2 OUT Regulated output current 3 OUT Regulated output current 4 VS 5 OUT Regulated output current 6 REXT External resistor for adjusting output current Supply voltage 3 Version: B1708 TSCR400CX6 / TSCR402CX6
Taiwan Semiconductor
TSCR400CX6 CHARACTERISTICS CURVES
1.2 100 REXT = 710Ω IOUT (mA) IOUT (mA) 1.1
10 1 1 0.9 0.8 0
0 0 1 10 -40 100 0 20 40 60 80 TA (℃)
…
