TPS61165DRVR-S Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
The TPS61165DRVR-S is a high-efficiency white LED boost driver from Texas Instruments, supporting up to 8 series LEDs with PWM or direct DC dimming control in a compact small-outline no-lead package. It enables backlight and flash LED applications in portable electronics. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 7
- Lifecycle
- ACTIVE
- Datasheet
- TPS61165DRVR-S Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Boost converter topology drives up to 8 series white LEDs from a single-cell Li-ion input of 2.7 V to 4.5 V
- PWM dimming control supports high-contrast display backlights with flicker-free operation at frequencies above 100 Hz
- Small-outline no-lead (SON/DRV) package minimizes PCB footprint for space-constrained smartphone and tablet designs
- High conversion efficiency reduces thermal dissipation and extends battery run time in portable backlight applications
Applications
The TPS61165DRVR-S is optimized for LCD backlight strings in smartphones, tablets, and portable navigation devices where up to 8 white LEDs are driven in series from a single-cell Li-ion battery. PWM dimming allows the display brightness to be adjusted smoothly from full intensity down to low levels without color shift, improving user experience and power efficiency in outdoor-readable displays. Camera flash pre-flash circuits and small OLED indicator backlights also benefit from this device's regulated current output and compact SON package.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS61165DRVR-S:
Frequently Asked Questions
How many white LEDs can TPS61165DRVR-S drive in series and from what input voltage?
TPS61165DRVR-S supports up to 8 white LEDs connected in series, with each LED requiring approximately 3.2 V to 3.6 V forward voltage, resulting in a total string voltage up to 28 V. The boost converter accepts an input voltage range of approximately 2.7 V to 4.5 V from a single-cell Li-ion battery, boosting the voltage to drive the full LED string at a regulated current.
What dimming method does TPS61165DRVR-S support for LCD backlight brightness control?
TPS61165DRVR-S supports PWM dimming via a logic-level input pin, allowing the backlight brightness to be reduced by controlling the duty cycle from 100% down to below 1% without changing the LED current during the on period. Operating the PWM signal above 100 Hz prevents visible flicker, enabling smooth, artifact-free dimming transitions on high-resolution LCD panels in smartphones and portable monitors.
What package does TPS61165DRVR-S use and how does it affect thermal management on a mobile PCB?
TPS61165DRVR-S comes in a small-outline no-lead (DRV/SON) package, which has an exposed pad on the bottom for direct thermal conduction to the PCB copper plane. Connecting this pad to a ground copper pour with at least 4 thermal vias achieves a junction-to-board thermal resistance below 30°C/W, keeping junction temperature safely below 125°C at typical smartphone ambient conditions when driving 150 mA LED string current.
When is TPS61165DRVR-S a more suitable choice than a direct-drive linear LED driver for backlight designs?
TPS61165DRVR-S is preferred when the LED string forward voltage exceeds the battery voltage, which happens when more than 1 or 2 LEDs are connected in series from a 3.7 V Li-ion cell. A boost converter achieving 85% to 90% efficiency wastes far less power than a linear driver that dissipates the full voltage difference across a pass transistor, making TPS61165DRVR-S the better choice for applications requiring 4 to 8 LEDs and battery life greater than 8 hours.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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