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1. Utsource will inspect the goods, including appearance inspection (no serious damage to the appearance), select qualified and honest suppliers, and ensure 98% qualification rate.
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Description
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FEATURES
● Controller for high-voltage DC/DC and DC/AC converters
● High efficiency, zero-voltage switching
● Supports wide input voltage range
● Constant operating frequency
● Built-in PWM dimming control with wide dimming range
● Soft start function
● Built-in intelligence for ignition and normal operation of CCFLs
● Built-in open-lamp protection and over voltage protection
● Shutdown delay for input voltage brownout condition
● Built-in under-voltage lockout protection
● Toggle pin to reset the IC after shutdown
● Low stand-by power
GENERAL DESCRIPTION
OZ964 is a high efficiency, Pulse Width Modulation (PWM) controller designed for both DC/DC and DC/AC high-voltage applications. The average current mode control is suitable for DC/DC converters where both voltage and current feedback are required, as well as for Cold Cathode Fluorescent Lamp (CCFL)_ backlight applications for small and large Liquid Crystal Displays (LCD).
OZ964 operates in a zero-voltage switching mode that minimizes electromagnetic interference (EMI). In addition, OZ964 achieves a high power-conversion efficiency resulting in a lower operating temperature and higher system reliability.
OZ964 supports a wide input voltage range and provides a constant,user-defined, operating frequency, ensuring that the CCFLs operate at a fixed frequency. This eliminates interference among CCFLs and the LCD panel. Interference causes electromagnetic compatibility (EMC) problems and may create visual effects (waterfall) on LCD panels. The controller provides a phase-shift square wave output that is able to drive a full bridge power train.
OZ964 utilizes a pulse width modulation (PWM) dimming method to achieve a wide dimming range. The IC performs the CCFL dimming function with an analog or low frequency PWM control.The PWM frequency is user-defined.
To avoid over-shoot and in-rush current to the CCFLs during ignition,a soft start function is provided for reliable CCFL operation.
The controller provides open-lamp protection and over-voltage protection, while providing an appropriate response for either open-lamp ignition or removal of a CCFL during normal operation. Intelligent open-lamp protection and over voltage protection provides design flexibility with various transformer characteristics. Open-lamp protection time is user-defined.
In addition, oZ964 provides a shutdown delay function that will keep the inverter module in normal operation for a short period of time if the input voltage suddenly drops and subsequently resumes to a normal level. The shutdown delay time is user-defined.
OZ964 provides under-voltage lockout protection and will disable the IC if VDDA falls below a threshold. oZ964 will resume normal operation when VDDA exceeds the threshold.
To reset the IC,toggle the enable (ENA) pin. OZ964 operates with a standby current of approximately 200μA.
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Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
OZ964GN
OZ964GN has several brands around the world that may have alternate names for OZ964GN due to regional differences or acquisition. OZ964GN may also be known as the following names:
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Unit Price:0.83580
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Stop production experts, we can provide a large number of electronic components that have been stopped production and are difficult to find, to facilitate the maintenance company
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