A8530EESTR-T Allegro Microsystems Inc, A8530EESTR-T Datasheet
A8530EESTR-T
Specifications of A8530EESTR-T
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A8530EESTR-T Summary of contents
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Discontinued Product This device is no longer in production. The device should not be purchased for new design applications. Samples are no longer available. Date of status change: November 1, 2010 Recommended Substitutions: For existing customer transition, and for new ...
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Features and Benefits ▪ Proprietary adaptive control scheme (1×, 1.5×, 2×) ▪ 0.5% typical LED current matching ▪ 2 separate serial interfaces for dimming control ▪ Drives white LEDs (4 display backlight, 2 flash/torch) ▪ ...
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... J(max) Storage Temperature, T ................................................... –55°C to 150°C S Use the following complete part number when ordering: Part Number A8530EESTR-T *Contact Allegro for additional packing options. Ultracompact 6-Channel Backlight and Flash/Torch White LED Driver Functional Block Diagram C1 1 µF C1 – ...
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A8530 Terminal List Table Name Number C1– 13 Negative terminal of capacitor C1. Connect capacitor C1 between C1+ and C1–. C1+ 16 Positive terminal of capacitor C1. C2– 15 Negative terminal of capacitor C2 C2+ 1 Positive terminal of capacitor ...
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A8530 a ELECTRICAL CHARACTERISTICS T = –40°C to +85°C; typical values are Characteristics Input Voltage Range Undervoltage Lockout Threshold UVLO Hysteresis Window Quiescent Current Soft-start Completion Time ISET Bias Voltage ISET Leakage in Shutdown ISET Current Range ...
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A8530 Efficiency versus Supply Voltage for LED1 through LED4, in parallel 2.7 3.1 3.5 3 (V) Logic Level 1.2 1 1.0 0.9 0.8 ...
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A8530 LED5-6 ON, 1.5× mode 200 mA OUT Symbol Parameter Units/Division C3 V Ripple OUT C4 I Ripple IN t time LED5-6 ON, 2× mode 200 ...
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A8530 Turn ON LED1 Mode 280 mA IN OUT Symbol Parameter C1 V and V ENF ENM C2 V OUT C3 I OUT t time ...
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A8530 Setting LED Current Use the following formula to set the display backlight LED full current (100%) using RSET on LED1 through LED4. The maxi- mum current through one LED should not exceed 30 mA: = 0.6 V × 220 ...
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A8530 Flash/Torch LED5 and LED6 Operation The flash/torch LEDs (LED5 and LED6) brightness and on/off can be controlled using digital input at ENF pin. ENF accepts one-wire serial pulse input to enable the A8530 and to set ...
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A8530 Overvoltage Protection The A8530 is protected up to 4.9 V supply voltage, against accidental overvoltage caused by an open LED. When any LED opens, V will increase till 6 V. Remaining LEDs will continue OUT to function normally. Normal ...
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A8530 17X 0.08 C +0.05 0.25 –0.07 +0.15 0.40 –0. Copyright ©2005-2008, Allegro MicroSystems, Inc. The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, Inc. reserves ...