ia2505 integration, ia2505 Datasheet
ia2505
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ia2505 Summary of contents
Page 1
... The input supply range is from 2.7V to 5.5V which is ideally suited for single- cell Li-Ion battery supplies. Dropout voltage is only 30mV at 20mA, permitting direct operation from a Li-Ion battery. The IA2505 can also be operated from two or three Alkaline batteries. The only external component required is a resistor that sets the current on each of the four channels. ...
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... A resistor to ground sets the output current. 4 GND Ground. 5-8 LED1-4 LED Cathodes. Connect these pins to the cathodes of the LEDs. Any number of these pins may be tied together for higher current. VCC 8 LED1 LED2 ISET 6 3 LED3 GND 5 4 LED4 3x3 DFN PIN ASSIGNMENT IA2505 2 ...
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... Note 4. Power ratings were calculated with Tj(max) = 150°C Min Max -0.3 +6 200 +150 -65 +150 260 Min Max 2.7 5 5.5 -40 +85 200 Tj(max) θjA 150°C 43°C/W θ 70°C A Power Rating 43°C/W 1.86W IA2505 Units V mA °C °C °C Units ° 85°C A Power Rating 1.51W 3 ...
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... Rset = 15KΩ Rset = 60KΩ, LED Pins Voltage = 1V Rset = 15KΩ, LED Pins Voltage = 1V Rset = 60KΩ LED Pins Voltage = 3.0V Rset = 60KΩ, VCC = 5V Iset Voltage = 1.2V Rset = 60KΩ, α Rset led IA2505 Min Typ Max Units • 0.01 1 µ • ...
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... Since the IA2505 doesn't switch, it generates no noise, eliminating troublesome electromagnetic interference (EMI). Enable The IA2505 can be turned off by pulling the EN pin low. It has an active-high EN pin (LOW = shutdown, HIGH = ON). In the shutdown condition, there is extremely low leakage current into the IC, and very low current into the LEDs. The IA2505 typically draws only 40µ ...
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... ILED = 20mA w ith 100 3.4 3.6 3.8 4 4.2 4.4 Input Voltage, V Turn-On Time Ch2: 10mA/Div 4.6 4.8 5 5.2 5.5 Output Current vs Input Voltage over Temperature with 2.4 2.8 3.2 3.6 4.2 4.6 5 Input Voltage, V Turn-Off Time Ch2: 10mA/Div IA2505 -40°C +25°C +85°C 5.4 6 ...
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... Temperature, °C Supply Current in Shutdown vs Temperature - 200 150 100 - Temperature, C Temperature, °C Output Current vs Rset Rset, kΩ Rset, kΩ IA2505 85 7 ...
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... Input Voltage, V Output Current vs Input Voltage for Rset = 60kΩ LED1 15 LED2 LED3 10 LED4 5 0 4.6 5 5.4 2 LED1 LED2 LED3 LED4 4.6 5 5.4 Output Current vs Input Voltage for Rset = 60KΩ & & 2.4 2.7 3 3.6 4.2 4.6 Input Voltage, V IA2505 LED1 LED2 LED3 LED4 5 5.4 8 ...
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... Figure 1: Application Circuit for 4 Super-bright White LEDs at 20mA Each Bill of Materials for Figure 1: Reference Manufacturer Example Part # R1 Any D1-4 Lumex LX5093UWC/C U1 Silicon Labs IA2505 Figure 2: Application Circuit for 3W White LED Flash at 800mA (20msec duration or less) Bill of Materials for Figure 2: Reference Example Manufacturers Part # R1 Any D1 Lumileds LXHL-PW09 ...
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... Dimensions A and B are datum’s and datum surface. Controlling dimensions: Millimeters Dimension A and B do not include mold flash. Mold flash shall not exceed 0.15mm [0.006] per side. Dimension D does not include interlead flash. Interlead flash shall not exceed 0.25 mm [0.010]. IA2505 11 ...
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... RELATED PRODUCTS AND DOCUMENTS IA2505 4-Channel LED Current Source for Flash and Backlighting DESCRIPTION IA2505 DFN 3x3 Demo Boards and Development Kits DESCRIPTION TBD TBD Note: Volume orders must include chip revision to be accepted. Silicon Labs, Inc. 400 West Cesar Chavez Austin, Texas 78701 Tel: 512 ...