| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
56,500 pcs
|
56500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
1,738 pcs
|
1738 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
407 pcs
|
407 pcs | On Request | 1 | On Request | On Request | 07+ | On Request | On Request | |
|
100 pcs
|
100 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Applications | |
| Current | |
| Dimming | |
| Internal Switch(s) | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Current | |
| Quiescent Current | |
| Supplier Device Package | |
| Supplier Package | |
| Topology | |
| Type | |
| Voltage |
The Texas Instruments LP3943ISQ/NOPB is an integrated circuit designed for driving up to 16 LEDs independently. This device offers control via I2C or SMBus, allowing for versatile dimming capabilities with variable dim rates.
Key electrical specifications include a maximum LED current of 25mA per channel and an input voltage range of 2.3V to 5.5V. The device operates within an ambient temperature range of -40°C to 85°C. It features an internal precision oscillator for timing and provides 16 open-drain outputs.
Packaged in a 24-WQFN (4x4mm) surface-mount package, the LP3943ISQ/NOPB is suitable for applications requiring precise LED control. Its design is particularly well-suited for camera flash functionalities and other illumination tasks where multiple LEDs need independent management.
The device includes features such as internal power-on reset and an active-low reset input. The topology is based on a shift register, enabling flexible control over each LED's state, including ON, OFF, input, and dimming at specified rates.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.23 | $1.23 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
2.3V to 5.5V.
24-WQFN Exposed Pad (4x4 mm).
-40°C to 85°C.
16 channels.
25mA.
I²C and SMBus.
0.35mA.