LM3535TMX/NOPB
ActiveMULTI-DISPLAY LED DRIVER WITH AMBIENT LIGHT SENSING AND DYNAMIC BACKLIGHT CONTROL COMPATIBILITY
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LM3535TMX/NOPB
ActiveMULTI-DISPLAY LED DRIVER WITH AMBIENT LIGHT SENSING AND DYNAMIC BACKLIGHT CONTROL COMPATIBILITY
Technical Specifications
Parameters and characteristics for this part
| Specification | LM3535TMX/NOPB |
|---|---|
| Applications | Backlight |
| Current - Output / Channel [custom] | 25 mA |
| Dimming | PWM |
| Frequency | 1.33 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, 20-WFBGA |
| Supplier Device Package | 20-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 | Bulk | 462 | $ 0.65 | |
| Tape & Reel (TR) | 3000 | $ 0.64 | ||
| 6000 | $ 0.60 | |||
| 15000 | $ 0.58 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.01 | |
| 100 | $ 0.83 | |||
| 250 | $ 0.60 | |||
| 1000 | $ 0.45 | |||
Description
General part information
LM3535 Series
The LM3535 device is a highly integrated LED driver capable of driving 8 LEDs in parallel for large display applications. Independent LED control allows selection of a subset of the 6 main display LEDs for partial-illumination applications. In addition to the main bank of 6, the LM3535 is capable of driving an additional 2 independently controlled LEDs to support Indicator applications.
The LED driver current sinks are split into three independently controlled groups. The primary group can be configured to drive up to six LEDs for use in the main phone display. Groups B and C are provided for driving secondary displays, keypads and indicator LEDs. All of the LED current sources can be independently turned on and off providing flexibility to address different application requirements.
The LM3535 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 the means to adjust the backlight intensity dynamically based upon the content of the display.