A6278EA-T Allegro Microsystems Inc, A6278EA-T Datasheet
A6278EA-T
Specifications of A6278EA-T
A6278EA-T
Related parts for A6278EA-T
A6278EA-T Summary of contents
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Features and Benefits ▪ 3.0 to 5.5 V logic supply range ▪ S chmitt trigger inputs for improved noise immunity ▪ Power-On Reset (POR) ▪ constant-current sinking outputs ▪ LED open circuit detection ▪ Low-power ...
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... A6278 and A6279 Selection Guide Part Number Packing 1 A6278EA-T 25 pieces per tube A6278ELPTR-T 1 4000 pieces per 13-in. reel A6279ELPTR-T 4000 pieces per 13-in. reel A6279ELWTR-T 2 1000 pieces per 13-in. reel A6279EETTR-T 1500 pieces per 7-in. reel 1 Variant is in production but has been determined to be LAST TIME BUY. This classification indicates that the variant is obsolete and notice has been given ...
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A6278 and A6279 Package A, LW, LP 16-pin GND 1 SERIAL DATA IN 2 CLOCK 3 LATCH ENABLE 4 EP OUT0 5 OUT1 6 7 OUT2 8 OUT3 OUTPUT ENABLE Terminal List Table Number A, LW A6278 A6279 ...
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A6278 and A6279 OPERATING CHARACTERISTICS Characteristic ELECTRICAL CHARACTERISTICS valid at T LOGIC SUPPLY Voltage Range Undervoltage Lockout Output Current (any single output) Output Current Matching (difference between any two outputs at the same Output Leakage Current Logic ...
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A6278 and A6279 Serial Shift Register Contents Clock Data Input … I Input n … n … n ...
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A6278 and A6279 CLOCK SERIAL DATA IN t SU(D) SERIAL DATA OUT LATCH ENABLE A6278 A6279 OUTPUT ENABLE OUT0 OUT1 Logic Levels: V and GND DD OUTn LED Open Circuit Detection (Test) Mode Timing ...
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A6278 and A6279 Normal Mode Serial data present at the SERIAL DATA IN to the shift register on the logic 0-to-logic 1 transition of the CLOCK input pulse. On succeeding CLOCK pulses, the register shifts data towards the SERIAL DATA ...
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A6278 and A6279 Constant Current (R ) EXT The A6278 and A6279 allow the user to set the magnitude of the constant current to the LEDs. Once set, the current remains constant regardless of the LED voltage variation, the supply ...
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A6278 and A6279 Undervoltage Lockout The A6278 and A6279 include an internal under-voltage lockout (UVLO) circuit that disables the outputs in the event that the logic supply voltage drops below a minimum acceptable level. This feature prevents the display of ...
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A6278 and A6279 Load Supply Voltage (V ) LED These devices are designed to operate with driver voltage drops ( 0.7 to 3V, with an LED forward voltage 1 higher voltages are ...
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A6278 and A6279 Allowable Output Current versus Duty Cycle, A6278 A Package 25° (%) LP Package 25° (%) LW Package 25° ...
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A6278 and A6279 Allowable Output Current versus Duty Cycle, A6279 A Package 25° (%) LP Package 25° (%) LW Package 25° ...
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A6278 and A6279 Characteristic Symbol Package Thermal Resistance R θJA *Additional thermal information is available on the Allegro Web site. A6278 5.0 4.0 3.0 2.0 1 100 Ambient Temperature, T Serial-Input, Constant-Current Latched LED Drivers with ...
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A6278 and A6279 1.27 MIN +0.25 1.52 –0. 1.27 MIN +0.25 1.52 –0.38 Serial-Input, Constant-Current Latched LED Drivers with Open LED Detection Package A, 16-pin DIP (A6278) 19.05±0.25 +0.76 +0.38 6.35 10.92 ...
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A6278 and A6279 Package LP, 16-pin TSSOP with Exposed Thermal Pad (A6278) 5.00 ±0. 3.00 16X 0.10 C +0.05 0.65 0.25 –0.06 Serial-Input, Constant-Current Latched LED Drivers with Open LED Detection 4° ±4 +0.05 0.15 ...
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A6278 and A6279 Package LP, 24-pin TSSOP with Exposed Thermal Pad (A6279) 7.80 ±0. 4.32 24X 0.10 C +0.05 0.25 0.65 –0.06 Serial-Input, Constant-Current Latched LED Drivers with Open LED Detection 4° ±4 +0.05 0.15 ...
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A6278 and A6279 10.30±0. 16X 0.10 C 0.41 ±0.10 1.27 For Reference Only Dimensions in millimeters (reference JEDEC MS-013 AA) Dimensions exclusive of mold flash, gate burrs, and dambar protrusions Exact case and lead configuration at ...
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A6278 and A6279 29X 0.08 C +0.05 0.25 –0.07 +0.20 0.55 –0. Copyright ©2005-2010, Allegro MicroSystems, Inc. The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, ...