Product
0
TPS61169
  • TPS61169
  • TPS61169

TPS61169

ACTIVE

TPS61169 38-V high-current Boost WLED driver

Texas Instruments TPS61169 Product Info

1 April 2026 3

Parameters

Number of channels

1

Vin (min) (V)

2.7

Vin (max) (V)

5.5

Vout (min) (V)

2.7

Vout (max) (V)

38

Type

Inductive

Switching frequency (max) (kHz)

1500

Duty cycle (max) (%)

100

LED current per channel (mA)

400

Peak efficiency (%)

90

Topology

Boost

Features

OVP, PWM control

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Package

SOT-SC70 (DCK)-5-4.2 mm² 2 x 2.1

Features

  • 2.7V to 5.5V input voltage
  • Integrated 40V, 1.8A MOSFET
  • Drives LED string up to 38V
  • 1.2A minimum switch current Limit
  • 1.2MHz switching frequency
  • 204mV reference voltage
  • Internal compensation
  • PWM brightness control
  • Open LED protection
  • Undervoltage protection
  • Built-in soft-start
  • Thermal shutdown
  • Up to 90% efficiency
  • 2.7V to 5.5V input voltage
  • Integrated 40V, 1.8A MOSFET
  • Drives LED string up to 38V
  • 1.2A minimum switch current Limit
  • 1.2MHz switching frequency
  • 204mV reference voltage
  • Internal compensation
  • PWM brightness control
  • Open LED protection
  • Undervoltage protection
  • Built-in soft-start
  • Thermal shutdown
  • Up to 90% efficiency

Description

With a 40V rated integrated switch FET, the TPS61169 is a boost converter that drives LEDs in series. The boost converter has a 40V, 1.8A internal MOSFET with minimum 1.2A current limit; thus it can drive single or parallel LED strings for small- to large-size panel backlighting. The default white LED current is set with the external sensor resistor, RSET, and the feedback voltage is regulated to 204mV, 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.

Subscribe to Welllinkchips !
Your Name
* Email
Popular Posts
Featured Parts More >
Submit a request
CONTACT US
Company address

WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK

Send Enquiry
SEND e-MAIL
Office hour from 9am to 6pm ,
Monday through Friday, UTC/GMT +8