ZXLD1352ET5TA Diodes Inc, ZXLD1352ET5TA Datasheet
ZXLD1352ET5TA
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ZXLD1352ET5TA Summary of contents
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... Diodes Incorporated 30V 350mA LED DRIVER WITH 1000:1 PWM DIMMING AND AEC-Q100 Pin Assignments LX GND ADJ Typical Application Circuit V IN (12V - 30V) 1µ GND www.diodes.com ZXLD1352 SENSE TSOT23-5 Top View D1 ZLLS1000 Rs 0.33 L1 47mH SENSE ZXLD1352 ADJ GND December 2010 © Diodes Incorporated ...
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... ADJ for 100Hz < f < 1kHz OUTnom from this define nominal average output current www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 SENSE - + - MN + =1.25V giving nominal average output current † =0.1/R OUTnom S December 2010 © Diodes Incorporated OUTnom ...
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... V (40V for 0.5 sec) +0 (measured with respect -0.3 to +30 V (40V for 0.5 sec) -0 500 mA 450 mW -55 to 150 °C 150 °C Rating Unit 200 °C/W Min Max Units 200 ns 200 ns 1 MHz 0.01 0.99 -40 105 °C December 2010 © Diodes Incorporated ...
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... V SENSE threshold and output current REF December 2010 © Diodes Incorporated Unit V µA µ µA V ppm/° kΩ A Ω µA kHz ns ...
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... I SENSE is then defined by this voltage and Rs according to: OUTnom www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 is forced across internal resistor R1 SENSE ), the comparator output switches ADJ . ADJ . The current decays at a rate determined IN December 2010 © Diodes Incorporated ) ADJ IN SENSE ...
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... Comparator V input voltage ADJ 5V Comparator output 0V ZXLD1352 Document number: DS33469 Rev Toff Ton 115mV 85mV 0.15V ADJ Figure 2. Operating Waveforms www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 100mV V SENSE- V SENSE+ I +15% OUTnom I OUTnom I -15% OUTnom 0.15V ADJ December 2010 © Diodes Incorporated ...
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... Normal Operation. Output Current (Ch3) and LX Voltage (Ch1 Ch3 100mA Ch 2 20.0V Start-up Waveforms. Output Current (Ch3), LX Voltage (Ch2) ZXLD1352 Document number: DS33469 Rev Diodes Incorporated [V = 12V 0.3Ω 100µ 400μs 5.0 S/s 200 ns/pt A Ch2 \ 12 www.diodes.com A Product Line of ZXLD1352 December 2010 © Diodes Incorporated ...
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... Typical Characteristics For typical application circuit driving 1W Luxeon ZXLD1352 Document number: DS33469 Rev ® white LED( =12V and www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 =25°C unless otherwise stated. amb December 2010 © Diodes Incorporated ...
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... Typical Characteristics (Cont ZXLD1352 Document number: DS33469 Rev www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 December 2010 © Diodes Incorporated ...
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... Typical Characteristics (Cont ZXLD1352 Document number: DS33469 Rev 1.4 1.2 1 0.8 0.6 0.4 0 www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 Vref vs Vin at low supply voltage Vin ( December 2010 © Diodes Incorporated ...
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... Typical Characteristics (Cont.) ZXLD1352 Document number: DS33469 Rev Product Line of Diodes Incorporated www.diodes.com ZXLD1352 December 2010 © Diodes Incorporated ...
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... ADJ GND <2.5V When driving the ADJ pin above 1.25V, R ADJ REF www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 (=1.25V). Note that R =0.27Ω is the REF S must be increased in S December 2010 © Diodes Incorporated ) the S ...
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... If the NMOS transistor within the microcontroller has high Gate / Drain capacitance, this arrangement can inject a negative spike into ADJ input of the ZXLD1352 and cause erratic operation but the addition of a Schottky clamp diode (eg Diodes Inc. SD103CWS) to ground and inclusion of a series resistor (3.3k) will prevent this. See the section on PWM dimming for more details of the various modes of control using high frequency and low frequency PWM signals ...
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... Capacitors with Y5V dielectric are not suitable for decoupling in this application and should NOT be used. A table of recommended manufacturers is provided below: Manufacturer Website Murata www.murata.com Taiyo Yuden www.t-yuden.com Kemet www.kemet.com AVX www.avxcorp.com ZXLD1352 Document number: DS33469 Rev Product Line of Diodes Incorporated will increase output current above the REF www.diodes.com ZXLD1352 December 2010 © Diodes Incorporated ...
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... the diode forward voltage at the required load current (V) ZXLD1352 Document number: DS33469 Rev pins (A) Manufacturer SAT (Ω) 0.5 0.56 CoilCraft 0.47 0.39 0.53 Sumida 0.38 Taiyo Yuden ) avg www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 December 2010 © Diodes Incorporated ...
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... If a silicon diode is used, care should be taken to ensure that the total voltage appearing on the LX pin including supply ripple, does not exceed the specified maximum value. ZXLD1352 Document number: DS33469 Rev =3.4V, I =350mA and VD =0.36V avg Reverse Leakage Current At 30V 85ºC Package (mA) (μA) 1000 300 TSOT23 www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 December 2010 © Diodes Incorporated ...
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... The graph below gives details for power derating. This assumes the device mounted on a 25mm PCB with 1oz copper standing in still air. ZXLD1352 Document number: DS33469 Rev LED SENSE ZXLD1352 www.diodes.com A Product Line of Diodes Incorporated ZXLD1352 across the LED(s) as shown led Cled ). Above this SU December 2010 © Diodes Incorporated ...
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... ADJ pin voltage and cause excessive output current. A ground ring placed around the ADJ pin will minimize changes in output current under these conditions. ZXLD1352 Document number: DS33469 Rev Diodes Incorporated ZXLD1352 GND www.diodes.com A Product Line of ZXLD1352 December 2010 © Diodes Incorporated ...
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... PWM dimming is preferable to DC dimming if optimum LED 'whiteness' is required. It will also provide the widest possible dimming range (approx. 1000:1) and higher efficiency at the expense of greater output ripple. ZXLD1352 Document number: DS33469 Rev Product Line of Diodes Incorporated Ton Toff www.diodes.com ZXLD1352 and a low level of zero, ADJ proportional OUTavg 0.1/Rs IOUTavg December 2010 © Diodes Incorporated ...
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... Ordering Information Device Package ZXLD1352ET5TA TSOT23-5 Package Outline Dimensions TSOT23-5 ZXLD1352 Document number: DS33469 Rev Product Line of Diodes Incorporated Reel Size Tape Width (mm) (mm) 180 www.diodes.com ZXLD1352 Quantity Part (per reel) Marking 3000 1352 December 2010 © Diodes Incorporated ...
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... Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. ...