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TPS61170DRV
The TPS61170DRV is a synchronous boost converter chip designed for driving white LEDs
TPS61170DRV
The TPS61170DRV is a synchronous boost converter chip designed for driving white LEDs
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Manufacturer Part # : TPS61170DRV
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Package/Case: SON6
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Brand: Texas Instruments
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Product Categories : Voltage Regulators - DC DC Switching Regulators
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Service & Packaging
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TPS61170DRV DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The TPS61170DRV is a synchronous boost converter designed for small display backlighting applications, commonly used in handheld devices like smartphones and tablets. Here are its key details:- **Input Voltage Range**: Typically operates from 2.7V to 5.5V, making it suitable for single-cell Li-ion battery-powered systems.- **Output Voltage**: Adjustable output voltage up to 28V, supporting various LED configurations.- **Efficiency**: High efficiency, achieved through synchronous rectification and low-dropout operation.- **Current Limit**: Built-in current limit protection to safeguard the LEDs from overcurrent conditions.- **Dimming Control**: Provides PWM dimming control, allowing for adjustable brightness levels.- **Protection Features**: Includes thermal shutdown and overvoltage protection to enhance system reliability.- **Package**: Offered in a small, space-saving DRV package, suitable for compact designs.- **Application**: Ideal for driving LED backlights in portable electronic devices, ensuring efficient power conversion and optimal display brightness control
Key Features
- Wide input voltage range from 2.7V to 18V
- Up to 30V peak output voltage
- Adjustable output current up to 1A
- Integrated 0.5-ohm MOSFET
- Efficient PWM operation at high frequency
- Programmable soft-start function
Application
- LED backlighting for LCD displays
- Flashlight and camera flash circuits
- Lamp drivers
- Low power boost converters
- Battery-powered portable devices
- Automotive lighting applications
- Industrial lighting systems
- Emergency lighting systems
- Consumer electronics
- Medical equipment
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Rohs Code | Yes | Part Life Cycle Code | Obsolete |
| Part Package Code | SON | Pin Count ! | 6 |
| Reach Compliance Code | ECCN Code | EAR99 | |
| HTS Code ! | 8542.39.00.01 | Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE | Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 18 V | Input Voltage-Min | 3 V |
| Input Voltage-Nom | 3.6 V | JESD-30 Code | S-PDSO-N6 |
| JESD-609 Code | e4 | Length | 2 mm |
| Moisture Sensitivity Level | 2 | Number of Functions | 1 |
| Number of Terminals | 6 | Operating Temperature-Max | 85 °C |
| Operating Temperature-Min | -40 °C | Output Current-Max | 1.44 A |
| Package Body Material | PLASTIC/EPOXY | Package Code | HVSON |
| Package Equivalence Code | SOLCC6,.08,25 | Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE | Peak Reflow Temperature (Cel) | 260 |
| Qualification Status ! | Not Qualified | Seated Height-Max | 0.8 mm |
| Surface Mount ! | YES | Switcher Configuration | BOOST |
| Switching Frequency-Max | 1500 kHz | Temperature Grade ! | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD | Terminal Form ! | NO LEAD |
| Terminal Pitch ! | 0.65 mm | Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | Width | 2 mm |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is TPS61170DRV?
The TPS61170DRV is a high-brightness LED driver with an integrated boost converter, designed by Texas Instruments. It is ideal for driving a string of several series-connected LEDs, and it is commonly used in backlighting applications for LCD displays, automotive lighting, and general LED illumination.
How Does TPS61170DRV Work?
The TPS61170DRV works by converting input voltage to a higher output voltage to drive a string of LEDs. It features a constant current output to ensure consistent brightness across the LED string, and it may include features such as PWM brightness control and overvoltage protection for LED safety.
How Many Pins does TPS61170DRV have and What are the Functions of the Pinout Configuration?
The TPS61170DRV is housed in a 6-pin SOT-23 (Small Outline Transistor) package. The pinout configuration includes:
- VIN: Input voltage supply pin.
- SW: Switch pin for the integrated boost converter.
- GND: Ground pin.
- FB: Feedback pin for controlling LED current or brightness.
- EN: Enable pin for turning the device on or off.
- PGND: Power ground pin.
What are the Pros and Cons of TPS61170DRV?
Pros:
- Integrated Boost Converter: Eliminates the need for an external boost converter circuit, simplifying design and reducing board space.
- Constant Current Output: Ensures consistent LED brightness regardless of LED forward voltage variations.
- Efficiency: Provides high efficiency to maximize battery life in portable applications.
Cons:
- Thermal Considerations: As with any power management device, thermal management may be a concern when driving high-brightness LEDs.
- External Components: May require external capacitors, inductors, and resistors to set the desired LED current and PWM frequency.
Are There Any Equivalents/Alternatives to TPS61170DRV for Recommendation?
- The LT1932 from Analog Devices is a similar high-brightness LED driver with an integrated boost converter.
- Alternatives to the TPS61170DRV include the MP3302 from Monolithic Power Systems and the CAT4101 from ON Semiconductor.
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