T6335A TMT | Alldatasheet

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Technical content

TM Technology Inc. reserves the right P. 1 Publication Date: MAR. 2007 to change products or specifications without notice. Revision: A Constant Current Regulator

FEATURES

  • Constant Current Regulator
  • Constant Current Option : 150/210/225/240/260/280/300/320/350 mA
  • Low Dropout Voltage
  • Low 0.1 uA Shutdown Supply Current
  • SOT-89 and TO-252 lead-free Package
  • ESD Human Body Mode Over 5KV
  • 2.7V to 5V Supply Voltage Range
  • Build in Thermal Protect 160 °°°°C

APPLICATIONS

  • Flash Light
  • Lighting
  • Portable Communication Devices
  • Handheld Electronics
  • DC/DC LED driver TYPICAL APPLICATION CIRCUITS T6335A GND OUT VDD VIN 2.7V~5V GENERAL DESCRIPTION The T6335A low-dropout bias supply for white LED is a high-performance used in conventional white LED designs. The T6335A has lower bias variation with supply voltage variation, significantly lower dropout voltage Low Shutdown Current in some applications, significantly improved efficiency from DC 2.7V to 5V. The T6335A is available in SOT-89 and TO-252 lead-free package. PART NUMBER EXAMPLES PIN ARRANGEMENT (Top view) SOT-89 TO-252 GND VDD OUT GND VDD OUT Part no. Current Package type T6335A-350AXG 350mA SOT-89 T6335A-350AWG 350mA TO-252 T6335A-150AXG 150mA SOT-89 T6335A-150AWG 150mA TO-252

TM Technology Inc. reserves the right P.2 Publication Date: MAR. 2007 to change products or specifications without notice. Revision: A PIN DESCRIPTION SYMBOL Pin no. DESCRIPTION OUT 1 LED Cathode Connection. VSS 2 Ground VDD 3 Power supply ABSOLUTE MAXIMUM RATINGS Parameter Symbol Value Unit Voltage on any pin relative to GND V IN -0.3 to 6 V Operating Temperature Rang T A -40 to +85 °C Maximum Soldering Temperature (at leads, 10 sec) T LEAD 300 °C Storage Temperature Rang T S -65 to +150 °C Continuous Power Dissipation ( TA = +70°C ) 1 W

Electrical Characteristics

(Typical values are at TA =25°C) Symbol Description Conditions Min. Typ. Max Unit VDD Operating voltage range VDD is power supply input 2.7 5 V T6335A-350 329 350 371 mA T6335A-320 300 320 339 mA T6335A-300 282 300 318 mA T6335A-280 263 280 296 mA T6335A-260 244 260 275 mA T6335A-240 225 240 254 mA T6335A-225 211 225 238 mA T6335A-210 197 210 222 mA ILED Maximum LED sink current VDD = 4.5V VLED =3.5V T6335A-150 141 150 159 mA TTP Thermat Protect 160 °C ILSD LED leakage current in shutdown VDD = GND, VLED = 5V 0.2 1 uA

TM Technology Inc. reserves the right P.3 Publication Date: MAR. 2007 to change products or specifications without notice. Revision: A Typical Operating Characteristics Test Circuit T6335A GND OUT VDD VDD VDD VS. Iout Curve 150 200 250 300 350 400 3.2 3.4 3.6 3.8 4.2 4.4 4.6 4.8 VDD(V) Iout(mA) 350mA 300mA 280mA 260mA 240mA 225mA

TM Technology Inc. reserves the right P.4 Publication Date: MAR. 2007 to change products or specifications without notice. Revision: A PACKAGE DIMENSIONS SOT-89 D POLISHED(2X) C HE L B B1 12 3 10'(2X) e A TO-252 SEATING PLANE E D be A H L c Dimension in mm Symbol Min. Max. A 1.40 1.60 B 0.44 0.56 B1 0.36 0.48 C 0.35 0.44 D 4.40 4.60 D1 1.35 1.83 E 2.29 2.60 H 3.94 4.25 e 1.50 BSC e1 3.00 BSC L 0.89 1.2 Dimension in inch Symbol Min. Max. A 0.086 0.094 A1 0.040 0.050 b 0.024 TYP. b2 0.205 0.215 c 0.018 0.023 c1 0.018 0.023 D 0.210 0.220 E 0.250 0.265 D1 0.180 - E1 0.150 - e 0.090 BSC. e1 0.180 BSC. H 0.370 0.410 L 0.020 - L1 0.025 0.040 L2 0.060 0.080