LM2796TLX National Semiconductor, LM2796TLX Datasheet
LM2796TLX
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LM2796TLX Summary of contents
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... The LM2796 is available in National’s chip-scale 18-bump micro SMD package. Typical Application Circuit © 2004 National Semiconductor Corporation Features n Drives LEDs with up to 20mA each n LEDs controlled in 2 Distinct Groups, for Backlighting 2 Displays (main LCD and sub-LCD) ...
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... E7 EN SET Ordering Information Order Information LM2796TL LM2796TLX www.national.com 18-Bump Thin Micro SMD Package, Large Bump NS Package Number TLA18 Input voltage. Input range: 2.7V to 5.5V. Ground Charge pump output. Approximately 1.5xV Flying capacitor connections. Enable pin. Logic input. High = normal operation, Low = shutdown (charge pump and all current sources OFF) ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V pin voltage IN EN, ENA, ENB pin voltages Continuous Power Dissipation (Note 3) Junction Temperature (T ) J-MAX Storage Temperature Range Maximum Lead Temperature (Soldering, 10 sec.) ...
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Electrical Characteristics Limits in standard typeface and typical values apply for T temperature range (-30˚C ≤ T ≤ +85˚C) . Unless otherwise specified Group B LEDs not ON simultaneously (ENA = and C = 1µF. ...
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Typical Performance Characteristics 2.0V; V(ENA) = 2.0V; V(ENB) = 0V; R SET LED Current vs. Input Voltage LED Current vs. PWM Duty Cycle, PWM Applied to ENA and/or ENB Unless otherwise specified 8.3 kΩ ...
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Circuit Description OVERVIEW The LM2796 is primarily intended for Lithium-Ion battery driven white-LED drive applications, and is well suited to drive white LEDs that are used for backlighting small-format displays. The part has seven matched constant-current out- puts, each capable ...
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Circuit Description (Continued) LED outputs rise at the rate of the reference voltage ramp. Due to the soft-start circuitry, turn-on time of the LM2796 is approximately 100µs (typ.). Thermal Protection Internal thermal protection circuitry disables the LM2796 when the junction ...
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... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...