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Details for TPS61169EVM by Texas Instruments
Development Boards Evaluation Tools > Power Management Development Kits > Power Management Development Kits - DC / DC
EVAL BOARD TPS61169 WLED DRIVER
TPS61169EVM image

TPS61169EVM by Texas Instruments

EVAL BOARD TPS61169 WLED DRIVER
Features
1.2-A Minimum Switch Current Limit
1.2-MHz Switching Frequency
2.7-V to 5.5-V Input Voltage
204-mV Reference Voltage
Built-in Soft-Start
Drives LED String up to 38 V
Integrated 40-V, 1.8-A MOSFET
Internal Compensation
Open LED Protection
PWM Brightness Control
Thermal Shutdown
Undervoltage Protection
Up to 90% Efficiency
Part Information
TPS61169EVM image
RoHS Compliant
Description
With a 40-V rated integrated switch FET, the TPS61169 is a boost converter that drives LEDs in series. The boost converter has a 40-V, 1.8-A internal MOSFET with minimum 1.2-A current limit; thus it can drive single or parallel LED strings for small- to largesize panel backlighting. The default white LED current is set with the external sensor resistor, RSET, and the feedback voltage is regulated to 204 mV, as shown in the Simplified Schematic. During the operation, the LED current can be controlled by using a pulse width modulation (PWM) signal applied to the CTRL pin, through which the duty cycle determines the feedback reference voltage. The TPS61169 does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the TPS61169 to prevent the output voltage from exceeding the absolute maximum voltage ratings of the device during open LED conditions. The TPS61169 is available in a space-saving 5-pin SC70 package.
Specifications
Device Topology:
Boost (Step Up)
No. of Outputs:
1Outputs
Output Current:
20mA
Output Voltage:
-
Input Voltage Min:
2.7V
Input Voltage Max:
5.5V
Core Chip:
TPS61169
Dimming Control Type:
PWM
Kit Contents:
Eval Board TPS61169
Product Range:
-
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
TPS61169 WLED Driver Evaluation Board Avnet America