LM3532TMX-40A/NOPB
ActiveHIGH EFFICIENCY WHITE LED DRIVER WITH PROGRAMMABLE AMBIENT LIGHT SENSING CAPABILITY AND I2C COMPATI
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LM3532TMX-40A/NOPB
ActiveHIGH EFFICIENCY WHITE LED DRIVER WITH PROGRAMMABLE AMBIENT LIGHT SENSING CAPABILITY AND I2C COMPATI
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Technical Specifications
Parameters and characteristics for this part
| Specification | LM3532TMX-40A/NOPB |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 30 mA |
| Dimming | PWM |
| Frequency | 500 kHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 3 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-WFBGA, DSBGA |
| Supplier Device Package | 16-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 | Bulk | 500 | $ 0.60 | |
| Tape & Reel (TR) | 3000 | $ 0.59 | ||
| 6000 | $ 0.56 | |||
| 15000 | $ 0.54 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.03 | |
| 100 | $ 0.79 | |||
| 250 | $ 0.58 | |||
| 1000 | $ 0.42 | |||
Description
General part information
LM3532 Series
The LM3532 is a 500-kHz fixed frequency asynchronous boost converter which provides the power for 3 high-voltage, low-side current sinks. The device is programmable over an I2C-compatible interface and has independent current control for all three channels. The adaptive current regulation method allows for different LED currents in each current sink thus allowing for a wide variety of backlight and keypad applications.
The main features of the LM3532 include dual ambient light sensor inputs each with 32 internal voltage setting resistors, 8-bit logarithmic and linear brightness control, dual external PWM brightness control inputs, and up to 1000:1 dimming ratio with programmable fade in and fade out settings.
The LM3532 is available in a 16-pin, 0.4-mm pitch thin DSBGA package. The device operates over a 2.7-V to 5.5-V input voltage range and the −40°C to +85°C temperature range.
Documents
Technical documentation and resources
