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TPS61042DRBR Datasheet(PDF) 4 Page - Texas Instruments |
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TPS61042DRBR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 27 page ![]() www.ti.com SW 8 OVP 7 GND 6 CTRL 5 LED DRB PACKAGE (TOP VIEW) 1 RS 2 VIN 3 FB 4 Exposed Thermal Die Pad TPS61042 SLVS441C – DECEMBER 2002 – REVISED MARCH 2007 The exposed thermal die pad is connected to GND. Terminal Functions TERMINAL NAME NO. I/O DESCRIPTION Combined enable and PWM control pin. If CTRL is constantly pulled high, the device is enabled and the CTRL 5 I internal LED switch (Q2) is constantly turned on. When CTRL is pulled to GND, the device is disabled. Apply a PWM signal (100 Hz to 50 kHz) to this pin to control the brightness of the LEDs FB 4 I Feedback. FB regulates the LED current through the sense resistor by regulating the voltage across RS to 252 mV. GND 6 GND LED 1 I Input of the LED switch (Q2). Connect the LEDs to this pin. OVP 7 I Overvoltage protection. OVP is connected to the output capacitor of the converter. RS 2 O Output of the internal LED switch. The sense resistor that programs the LED current is connected to RS. SW 8 I Drain of the integrated switch (Q1) VIN 3 I Input supply pin. 4 Submit Documentation Feedback |
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