TPS61043DRBT Texas Instruments - Yeehing Electronics

TPS61043: constant current LED driver

Pricing (USD)

Quantity	Unit Price
1 — 99	1.129
100 — 249	0.932
250 — 999	0.67
1,000 +	1.37

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	LED Lighting Drivers
RoHS	Y
Number of Channels	1 Channel
Output Current	60 mA
Input Voltage	1.8 V to 6 V
Operating Frequency	1 MHz
Supply Current - Max	65 uA
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Mounting Style	SMD/SMT
Package / Case	SON-8
Series	TPS61043
Packaging	Reel
Features	Load Disconnect During Shutdown
Operating Temperature Range	- 40 C to + 85 C
Output Type	Constant Current
Type	Inductive
Brand	Texas Instruments
Topology	Boost
Moisture Sensitive	Yes
Pd - Power Dissipation	370 mW
Product Type	LED Lighting Drivers
Factory Pack Quantity	250
Subcategory	Driver ICs
Unit Weight	0.000808 oz

For more information, please refer to datasheet

Documents

TPS61043DRBT Datasheet

More Information

The TPS61043 is a high-frequency boost converter with constant current output that drives white LEDs or similar. The LED current is set with the external sense resistor (RS) and is directly regulated by the feedback pin (FB) that regulates the voltage across the sense resistor RS to 252 mV (typical). To control LED brightness, the LED current can be pulsed by applying a PWM (pulse width modulated) signal with a frequency range of 100 Hz to 50 kHz to the control pin (CTRL). To allow higher flexibility, the device can be configured so that the brightness is controlled by an analog signal as well, as described in Application Information. To avoid possible leakage currents through the LEDs during shutdown, the control pin (CTRL) disables the device and disconnects the LEDs from ground. For maximum safety during operation, the output has integrated overvoltage protection that prevents damage to the device by limiting the output voltage to typically 18 V in case of a high-impedance output (for example, faulty LED). The TPS61043 device provides a solution for applications where higher LED currents or more than four LEDs in series must be powered.