LM3538TMX/NOPB
Active6-CHANNEL WLED DRIVER WITH FOUR INTEGRATED LDOS
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LM3538TMX/NOPB
Active6-CHANNEL WLED DRIVER WITH FOUR INTEGRATED LDOS
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Technical Specifications
Parameters and characteristics for this part
| Specification | LM3538TMX/NOPB |
|---|---|
| Applications | Backlight |
| Current - Output / Channel [custom] | 25 mA |
| Dimming | PWM |
| Frequency | 1.3 MHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 8 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -30 °C |
| Package / Case | DSBGA, 30-WFBGA |
| Supplier Device Package | 30-DSBGA |
| Topology | Switched Capacitor (Charge Pump) |
| Type | DC DC Regulator |
| Voltage - Output [Max] | 4 V |
| Voltage - Output [Min] | 2 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 | $ 1.01 | |
| 6000 | $ 0.97 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.66 | |
| 100 | $ 1.37 | |||
| 250 | $ 0.98 | |||
| 1000 | $ 0.74 | |||
Description
General part information
LM3538 Series
The LM3538 is a highly integrated LED driver capable of driving 6 LEDs in parallel for single display backlighting applications. Independent LED control allows for a subset of the main display LEDs to be selected for partial illumination applications.
I2C-compatible control allows full configurability of the backlighting function. The LM3538 provides multi-zone Ambient Light Sensing allowing autonomous backlight intensity control in the event of changing ambient light conditions. A PWM input is also provided to give the user a means to adjust the backlight intensity dynamically based upon the content of the display.
Four integrated LDOs are fully configurable through I2C capable of addressing point-of-load regulation needs for functions such as integrated camera modules. The LDOs can be powered from main battery source, or by a fixed output voltage of an external buck converter (post regulation) leading to higher conversion efficiency.