UCC3973PWTR
Texas Instruments
The Texas Instruments UCC3973PWTR is a CCFL controller IC designed for lighting applications. It operates within a voltage range of 4.5V to 20V and a frequency of 80kHz to 160kHz.
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280 pcs
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280 pcs | On Request | 1 | On Request | On Request | N/A | On Request | On Request |
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The UCC3973PW from Texas Instruments is a BiCMOS Cold Cathode Fluorescent Lamp (CCFL) driver controller designed for applications like notebook computers and portable devices. It offers a wide input voltage range from 4.5V to 25V and supports a maximum switching frequency of 220kHz. The controller operates within a temperature range of 0°C to 70°C.
Key features include accurate lamp current control, analog or low-frequency dimming capability, open lamp protection, and a programmable startup delay. The device is available in an 8-pin TSSOP package, minimizing footprint and system cost. Its design goals focus on high efficiency and low operating current, consuming typically less than 1mA.
This CCFL controller integrates essential circuit blocks for a highly efficient backlight power supply. It features an internal shunt regulator and an internal voltage clamp that protects the transformer from over-voltage conditions. The PWM frequency can be synchronized to an external resonant tank, providing design flexibility.
| Qty | Low | High |
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| 1+ | $4.63 | $4.63 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range for the UCC3973PW is 4.5V to 25V.
The maximum switching frequency of the UCC3973PW is 220kHz.
The operating temperature range for the UCC3973PW is 0°C to 70°C.
The typical supply current of the UCC3973PW is 1mA.
The UCC3973PW is a CCFL Controller.
Yes, the UCC3973PW has Analog or Low Frequency Dimming Capability.
The UCC3973PW is available in an 8-TSSOP package.