TPS61165_17 Datasheet, PDF (1/33 Pages) Texas Instruments – High-Brightness, White LED Driver in WSON and SOT-23 Packages

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TPS61165
SLVS790D – NOVEMBER 2007 – REVISED APRIL 2016
TPS61165 High-Brightness, White LED Driver in WSON and SOT-23 Packages
1 Features
•1 3-V to 18-V Input Voltage Range
• 38-V Open LED Protection
• 200-mV Reference Voltage With 2% Accuracy
• 1.2-A Switch FET With 1.2-MHz Switching
Frequency
• Flexible One-Wire Digital and PWM Brightness
Control
• Built-in Soft Start
• Up to 90% Efficiency
• 2-mm × 2-mm × 0.8-mm 6-Pin WSON Package
With Thermal Pad, and SOT-23 Package
2 Applications
• High-Brightness LED Lighting
• White LED Backlighting for Media Form Factor
Display
• Handheld Data Terminals (EPOS)
• Thermostat Display
• Human Machine Interface (HMI)
• Video Surveillance Camera
• Exit Signs
• HMI and Control Panels
• Industrial PCs
• IR LED driver
• Refrigerator
• Ovens
3 Description
With a 40-V rated integrated switch FET, the
TPS61165 device is a boost converter that drives
LEDs in series. The boost converter runs at a
1.2-MHz fixed switching frequency with 1.2-A switch
current limit, allowing the use of a high-brightness
LED in general lighting.
The default white LED current is set with the external
sensor resistor Rset, and the feedback voltage is
regulated to 200 mV, as shown in Typical Application.
During the operation, the LED current can be
controlled using the one-wire digital interface
(EasyScale™ protocol) through the CTRL pin.
Alternatively, a pulse-width-modulation (PWM) signal
can be applied to the CTRL pin through which the
duty cycle determines the feedback reference
voltage. In either digital or PWM mode, the
TPS61165 device 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 TPS61165 device to prevent the output from
exceeding its absolute maximum voltage ratings
during open LED conditions.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61165
SOT-23 (6)
WSON (6)
2.90 mm × 1.60 mm
2.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VIN 5V
Typical Application
L1
10 mH
D1
C1
4.7 mF
ON/OFF
DIMMING
CONTROL
220 nF
TPS61165
VIN SW
CTRL FB
COMP GND
C2
1 mF
350 mA
Rset
0.57 W
L 1 : TOKO #A 915 _Y-100M
C1 : Murata GRM 188R61A475 K
C2 : Murata GRM 188R61E105K
D1 : ONsemi MBR0540T1
LED : OSRAM LW-W 5SM
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.