LM3530TMX-40/NOPB
ActiveHIGH EFFICIENCY WHITE LED DRIVER WITH PROGRAMMABLE AMBIENT LIGHT SENSING CAPABILITY
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LM3530TMX-40/NOPB
ActiveHIGH EFFICIENCY WHITE LED DRIVER WITH PROGRAMMABLE AMBIENT LIGHT SENSING CAPABILITY
Technical Specifications
Parameters and characteristics for this part
| Specification | LM3530TMX-40/NOPB |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 30 mA |
| Dimming | PWM |
| Frequency | 500 kHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | DSBGA, 12-WFBGA |
| Supplier Device Package | 12-DSBGA |
| Topology | Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Output | 40 V |
| Voltage - Supply (Max) | 5.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 3000 | $ 0.62 | |
| 6000 | $ 0.58 | |||
| 15000 | $ 0.56 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.07 | |
| 100 | $ 0.83 | |||
| 250 | $ 0.61 | |||
| 1000 | $ 0.43 | |||
Description
General part information
LM3530 Series
The LM3530 current mode boost converter supplies the power and controls the current in up to 11 series white LEDs. The 839-mA current limit and 2.7-V to 5.5-V input voltage range make the device a versatile backlight power source ideal for operation in portable applications.
The LED current is adjustable from 0 mA to 29.5 mA via an I2C-compatible interface. The 127 different current steps and 8 different maximum LED current levels give over 1000 programmable LED current levels. Additionally, PWM brightness control is possible through an external logic level input.
The device also features two Ambient Light Sensor inputs. These are designed to monitor analog output ambient light sensors and provide programmable adjustment of the LED current with changes in ambient light. Each ambient light sensor input has independently programmable internal voltage setting resistors which can be made high impedance to reduce power during shutdown. The 500-kHz switching frequency allows for high converter efficiency over a wide output voltage range accommodating from 2 to 11 series LEDs. Finally, the support of Content Adjusted Backlighting maximizes battery life while maintaining display image quality.
Documents
Technical documentation and resources
