1ch Boost up type White LED Driver for large LCD - BD9489F
BD9489F is a high efficiency driver for white LEDs and is designed for large LCDs. BD9489F has a boost DCDC converter that employs an array of LEDs as the light source. BD9489F has some protect functions against fault conditions, such as over-voltage protection (OVP), over current limit protection of DCDC (OCP), LED OCP protection, and Over boost protection (FBMAX). Therefore it is available for the fail-safe design over a wide range output voltage.
| Part Number | Status | Package | Unit Quantity | Minimum Package Quantity | Packing Type | RoHS |
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| BD9489F-GE2 | Active | SOP16 | 2500 | 2500 | Taping | Yes |
BD9489F Data Sheet
Specifications| Topology | Boost | | Number of Outputs | 1 | | Vin(Min.)[V] | 9.0 | | Vin(Max.)[V] | 35.0 | | Frequency(Max.)[MHz] | 0.8 | | LED Configuration | 1 | | Operating Temperature (Min.)[°C] | -40 | | Operating Temperature (Max.)[°C] | 85 |
| Technical DocumentsFeatures- DCDC converter with current mode
- As PWM=L, the retaining function of Vout, FB voltage
- VOUT discharge function at shutdown
- LED protection circuit (Over boost protection, LED OCP protection)
- Over-voltage protection (OVP) for the output voltage Vout
- Adjustable soft start
- Adjustable oscillation frequency of DCDC
- Wide range of analog dimming 0.2V to 3.0V
- UVLO detection for the input voltage of the power stage
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