| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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6,590 pcs
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6590 pcs | On Request | 1 | On Request | On Request | 24+ | On Request | On Request | |
|
4,018 pcs
|
4018 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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1,570 pcs
|
1570 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
916 pcs
|
916 pcs | On Request | 1 | On Request | On Request | 22+ | On Request | On Request | |
|
36 pcs
|
36 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Current | |
| Dimming | |
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The TPS61194PWPR from Texas Instruments is a versatile 4-channel LED driver designed for applications requiring precise current control and high dimming ratios. It features an integrated boost/SEPIC converter, enabling efficient power delivery for LED strings.
This device supports an input voltage range of 4.5V to 40V and can deliver an output voltage of up to 45V. Each of the four high-precision current sinks can provide up to 100mA per channel, with a typical current matching of 1%. The outputs can be externally combined for higher current requirements per string. A high dimming ratio of 10,000:1 at 100 Hz is achievable using PWM dimming.
The TPS61194PWPR operates with a switching frequency adjustable from 300 kHz to 2.2 MHz, and includes features like spread spectrum for lower EMI. It also incorporates extensive fault detection, including input voltage over/under-voltage lockout, open and shorted LED detection, and thermal shutdown, enhancing system reliability.
Packaged in a 20-HTSSOP, this LED driver is suitable for surface mount applications. Its design minimizes the need for external components, simplifying board layout and reducing overall system cost.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.00 | $1.00 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 4.5V to 40V.
The maximum output voltage is 45V.
The TPS61194PWPR has 4 channels.
The typical current matching for the LED strings is 1%.
The switching frequency range is 300kHz to 2.2MHz.
It supports PWM dimming.
Fault detection includes input voltage OVP and UVLO, open and shorted LED fault detection, and thermal shutdown.