TPS61062 Series
24V, 400mA switch, 1MHz boost converter w/brightness control for white LED power Supplies
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
24V, 400mA switch, 1MHz boost converter w/brightness control for white LED power Supplies
| Part | Dimming | Current - Output / Channel | Voltage - Supply (Max) [Max] | Type | Number of Outputs | Mounting Type | Internal Switch(s) | Frequency | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Output | Applications | Supplier Device Package | Topology | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS61062DRBR | PWM | 400 mA | 6 V | DC DC Regulator | 1 | Surface Mount | 1 MHz | 85 °C | -40 °C | 23.5 V | Backlight | 8-SON (3x3) | Step-Up (Boost) | 8-VDFN Exposed Pad | |
Texas Instruments TPS61062YZFT | PWM | 400 mA | 6 V | DC DC Regulator | 1 | Surface Mount | 1 MHz | 85 °C | -40 °C | 23.5 V | Backlight | 8-DSBGA | Step-Up (Boost) | ||
Texas Instruments TPS61062YZFR | PWM | 400 mA | 6 V | DC DC Regulator | 1 | Surface Mount | 1 MHz | 85 °C | -40 °C | 23.5 V | Backlight | 8-DSBGA | Step-Up (Boost) |
Key Features
• LED Driver With Integrated Overvoltageand Short-Circuit Protection2.7-V to 6-V Input Voltage Range500-mV/250-mV Feedback VoltageTPS61060 Powers Up to 3 LEDsTPS61061 Powers Up to 4 LEDsTPS61062 Powers Up to 5 LEDsPWM Brightness Control on EnableDigital Brightness Control on ILED1-MHz Fixed Switching Frequency400-mA Internal Power MOSFET SwitchLEDs Disconnected During ShutdownOperates With Small-Output CapacitorsDown to 220 nFUp to 80% Efficiency8-Pin NanoFree®Package (Chipscale, CSP)3 × 3-mm QFN PackageLED Driver With Integrated Overvoltageand Short-Circuit Protection2.7-V to 6-V Input Voltage Range500-mV/250-mV Feedback VoltageTPS61060 Powers Up to 3 LEDsTPS61061 Powers Up to 4 LEDsTPS61062 Powers Up to 5 LEDsPWM Brightness Control on EnableDigital Brightness Control on ILED1-MHz Fixed Switching Frequency400-mA Internal Power MOSFET SwitchLEDs Disconnected During ShutdownOperates With Small-Output CapacitorsDown to 220 nFUp to 80% Efficiency8-Pin NanoFree®Package (Chipscale, CSP)3 × 3-mm QFN Package
Description
AI
The TPS6106x is a high-frequency, synchronous boost converter with constant current output to drive up to 5 white LEDs. For maximum safety, the device features integrated overvoltage and an advanced short-circuit protection when the output is shorted to ground. The device operates with 1-MHz fixed switching frequency to allow for the use of small external components and to simplify possible EMI problems. The device comes with three different overvoltage protection thresholds (14 V/18 V/23 V) to allow inexpensive and small-output capacitors with lower voltage ratings. The LED current is initially set with the external sense resistor Rs, and the feedback voltage is regulated to 500 mV or 250 mV, depending on the ILED pin configuration. Digital brightness control is implemented by applying a simple digital signal to the ILED pin. Alternatively, a PWM signal up to 1 kHz can be applied to the enable pin to control the LED brightness. During shutdown, the output is disconnected from the input to avoid leakage current through the LEDs.
The TPS6106x is a high-frequency, synchronous boost converter with constant current output to drive up to 5 white LEDs. For maximum safety, the device features integrated overvoltage and an advanced short-circuit protection when the output is shorted to ground. The device operates with 1-MHz fixed switching frequency to allow for the use of small external components and to simplify possible EMI problems. The device comes with three different overvoltage protection thresholds (14 V/18 V/23 V) to allow inexpensive and small-output capacitors with lower voltage ratings. The LED current is initially set with the external sense resistor Rs, and the feedback voltage is regulated to 500 mV or 250 mV, depending on the ILED pin configuration. Digital brightness control is implemented by applying a simple digital signal to the ILED pin. Alternatively, a PWM signal up to 1 kHz can be applied to the enable pin to control the LED brightness. During shutdown, the output is disconnected from the input to avoid leakage current through the LEDs.