LP3958TL/NOPB
ActiveLIGHTING MANAGEMENT UNIT WITH HIGH VOLTAGE BOOST CONVERTER
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LP3958TL/NOPB
ActiveLIGHTING MANAGEMENT UNIT WITH HIGH VOLTAGE BOOST CONVERTER
Technical Specifications
Parameters and characteristics for this part
| Specification | LP3958TL/NOPB |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 1.15 A |
| Dimming | I2C |
| Frequency | 1 MHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 5 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -30 °C |
| Package / Case | 25-WFBGA |
| Supplier Device Package | 25-uSMD |
| Topology | Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Output | 18 V |
| Voltage - Supply (Max) | 5.5 V |
| Voltage - Supply (Min) [Min] | 3 V |
LP3958 Series
Lighting management unit with high Voltage boost converter
| Part | Package / Case | Voltage - Output | Operating Temperature [Min] | Operating Temperature [Max] | Applications | Voltage - Supply (Min) [Min] | Topology | Mounting Type | Dimming | Current - Output / Channel | Supplier Device Package | Frequency | Number of Outputs | Type | Voltage - Supply (Max) | Internal Switch(s) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | 25-WFBGA | 18 V | -30 °C | 85 °C | Backlight | 3 V | Step-Up (Boost) | Surface Mount | I2C | 1.15 A | 25-uSMD | 1 MHz | 5 | DC DC Regulator | 5.5 V | |
Texas Instruments | 25-WFBGA | 18 V | -30 °C | 85 °C | Backlight | 3 V | Step-Up (Boost) | Surface Mount | I2C | 1.15 A | 25-uSMD | 1 MHz | 5 | DC DC Regulator | 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 | Cut Tape (CT) | 1 | $ 4.28 | |
| 10 | $ 3.84 | |||
| 25 | $ 3.63 | |||
| 100 | $ 3.15 | |||
| Digi-Reel® | 1 | $ 4.28 | ||
| 10 | $ 3.84 | |||
| 25 | $ 3.63 | |||
| 100 | $ 3.15 | |||
| Tape & Reel (TR) | 250 | $ 2.10 | ||
| 500 | $ 2.00 | |||
| Texas Instruments | SMALL T&R | 1 | $ 3.23 | |
| 100 | $ 2.83 | |||
| 250 | $ 1.98 | |||
| 1000 | $ 1.60 | |||
Description
General part information
LP3958 Series
LP3958 is a Lighting Management Unit for portable applications. It is used to drive display backlight and keypad LEDs. The device can drive 5 separately connected strings of LEDs with high voltage boost converter.
The keypad LED driver allows driving LEDs from high voltage boost converter or separate supply voltage.The MAIN and SUB outputs are high resolution current mode drivers. Keypad LED outputs can be used in switch mode and current mode. External PWM control can be used for any selected outputs.
The device is controlled through 2-wire low voltage I2C compatible interface that reduces the number of required connections.
Documents
Technical documentation and resources