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ZXLD1615Q Dataheets PDF



Part Number ZXLD1615Q
Manufacturers Diodes
Logo Diodes
Description AUTOMOTIVE COMPLIANT HIGH LCD BIAS GENERATOR BOOST CONVERTER
Datasheet ZXLD1615Q DatasheetZXLD1615Q Datasheet (PDF)

ZXLD1615Q AUTOMOTIVE COMPLIANT LCD BIAS GENERATOR BOOST CONVERTER Description The ZXLD1615Q is a PFM inductive-boost-converter designed to provide output voltages of up to 28V from a 2.5V to 5.5V input supply. The ZXLD1615Q includes the output switch and peak current sense resistor, and can provide up to 10mA output current at maximum output voltage. Higher current is available at lower output voltages. Quiescent current is typically 60A and a shutdown function is provided to reduce this curre.

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ZXLD1615Q AUTOMOTIVE COMPLIANT LCD BIAS GENERATOR BOOST CONVERTER Description The ZXLD1615Q is a PFM inductive-boost-converter designed to provide output voltages of up to 28V from a 2.5V to 5.5V input supply. The ZXLD1615Q includes the output switch and peak current sense resistor, and can provide up to 10mA output current at maximum output voltage. Higher current is available at lower output voltages. Quiescent current is typically 60A and a shutdown function is provided to reduce this current to less. Nominal output voltage can be set up to a maximum of 28V by two external resistors and can be adjusted to lower values by a PWM control signal applied to the 'Enable' pin. Depending upon the control frequency, the PWM signal will provide either continuous (low ripple) or gated control. The PWM filter components are contained within the chip. Minimum output voltage is determined by the input supply. The device is assembled in a low profile TSOT25 package. The ZXLD1615Q is qualified to AEC-Q100 Grade 3 and is Automotive-Compliant supporting PPAPs. Pin Assignments LX 1 GND 2 FB 3 Applications  Automotive LCD Panels TSOT25 5 VIN 4 EN Features  Internal PWM Filter for Adjustable Output  High Efficiency (85% typ.)  Wide Input Voltage Range: 2.5V to 5.5V  Up to 250mA Output Current at 5V  Low 60µA Quiescent Current  100nA Maximum Shutdown Current  Up to 1MHz Switching Frequency  Low External Component Count  Green Molding in Small Package TSOT25  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3)  Automotive-Compliant  Qualified to AEC-Q100 Grade 3  PPAP Capable (Note 4) Notes: 1. 2. 3. 4. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated‟s definitions of Halogen- and Antimony-free, "Green" and Lead-free. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Automotive compliant products are AEC-Q100 qualified and are PPAP capable. Please refer to https://www.diodes.com/quality/product-compliance- definitions/. ZXLD1615Q Document number: DS37687 Rev. 2 - 2 1 of 12 www.diodes.com November 2017 © Diodes Incorporated Typical Application Circuit ZXLD1615Q 4.7F Pin Description Pin Number 1 2 3 4 5 Pin Name LX GND FB EN VIN Function Drain of NDMOS Switch Ground (0V) Feedback Pin for Voltage Control Loop Nominal Voltage 1.025V Enable Input (Active High to Turn on Device) Also Used to Adjust Output Current by PWM Signal - Connect to VIN for Permanent Operation Input Voltage (2.5V to 5.5V) Decouple with Capacitor Close to Device ZXLD1615Q Document number: DS37687 Rev. 2 - 2 2 of 12 www.diodes.com November 2017 © Diodes Incorporated Functional Block Diagram ZXLD1615Q Absolute Maximum Ratings (Note 5) (@TA = +25°C, unless otherwise specified.) Symbol Parameter Rating Unit VIN Input Voltage -0.3 to +7 V VLX LX Output Voltage -0.3 to +30 V ILX Switch Output Current 0.5 A PTOT Power Dissipation (Note 6) 0.3 W TST Storage Temperature -55 to +150 °C TJ MAX Junction Temperature ESD Susceptibility +125 °C HBM Human Body Model 1,500 V MM Machine Model 100 V CDM Charged Device Model 1,000 V Notes: 5. All voltages unless otherwise stated are measured with respect to GND. 6. Derate power dissipation above +25°C ambient temperature at +330°C/W. Caution: Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only; functional operation of the device at conditions between maximum recommended operating conditions and absolute maximum ratings is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time. Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling and transporting these devices. The human body model is a 100pF capacitor discharge through a 1.5kΩ resistor pin. The machine model is a 200pF capacitor discharged directly into each pin. ZXLD1615Q Document number: DS37687 Rev. 2 - 2 3 of 12 www.diodes.com November 2017 © Diodes Incorporated Recommended Operating Conditions Symbol VIN VLX VENH VENL fLX MAX TA Parameter Input Voltage LX Pin (MOSFET Switch‟s Drain) Output Voltage EN Pin High Level Input Voltage EN Pin Low Level Input Voltage Recommended Maximum Operating Frequency Operating Ambient Temperature Range ZXLD1615Q Min Max Unit 2.5 5.5 V 0 28 V 1.5 VIN V 0 0.4 V — 1,000 kHz -40 +85 °C Electrical Characteristics (Test conditions: @ VIN = VEN = 3V, TA = +25°C, unless otherwise specified.) Symbol IINQ_OFF IINQ_ON VFB fLX tOFF tO.


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