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Texas Instruments TPS60230RGTR
- Part No.:
- TPS60230RGTR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS60230RGTR.pdf
- Description:
- IC LED DRV RGLTR PWM 25MA 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,438
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Product details
Overview
TPS60230RGTR from Texas Instruments is a white LED charge pump current source IC with PWM brightness control, delivering regulated 25 mA per channel across five independent current sinks (D1–D5), operating from 2.7 V to 6.5 V input, and featuring 1x/1.5x fractional conversion for high efficiency in single-cell Li-ion or multi-cell alkaline/NiMH battery-powered color display backlighting.
For engineers reviewing the TPS60230RGTR datasheet, TPS60230RGTR pinout, TPS60230RGTR application, or TPS60230RGTR equivalent, this device is selected for compact, low-EMI white LED backlight solutions requiring precise current matching (±0.4%), soft-start control, overtemperature/overcurrent protection, and dual enable pins supporting both digital (4-step) and analog PWM dimming.
Technical Context
The TPS60230RGTR integrates a 1 MHz switching fractional charge pump (1x or 1.5x mode) that automatically selects optimal conversion ratio based on input voltage and LED forward voltage to maximize efficiency across battery discharge profiles. Its five matched current sinks are controlled by an external resistor at ISET, with current mirroring ratio k = 260 (typical) and reference voltage VISET selectable via EN1/EN2 logic states (200 mV / 400 mV / 600 mV).
It employs internal soft-start to limit inrush current during startup, undervoltage lockout (UVLO) with 2.1 V threshold and 50 mV hysteresis, and thermal shutdown at 160°C with 20°C hysteresis. Protection includes output overvoltage clamping (5.5 V), input current limiting (350 mA), and short-circuit detection at each Dx sink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 2.7 V to 6.5 V - supports full operation from discharged to fully charged single Li-ion cell or 3–4 alkaline/NiMH cells. |
| Max output current | 125 mA total (25 mA × 5 channels) - enables driving five white LEDs simultaneously at full brightness. |
| Current matching | ±0.4% - ensures uniform luminance across multiple LEDs without external calibration. |
| Switching frequency | 1 MHz (0.75–1.25 MHz) - allows use of small 0.47 µF flying capacitors and reduces EMI filtering burden. |
| Efficiency | 83% (at VI = 3.7 V, 15 mA/LED, VDX = 3.1 V) - optimized by adaptive 1x/1.5x mode selection to extend battery runtime. |
| Package | 16-pin QFN (RGT), 3 mm × 3 mm, 1 mm max height - ultra-compact footprint with exposed thermal pad for power dissipation. |
| Operating temperature | –40°C to +85°C - qualified for consumer handheld and portable industrial display applications. |
Pinout & Package
TPS60230RGTR is housed in a 16-pin VQFN package (RGT) with 3 mm × 3 mm body, 0.5 mm pitch, and exposed thermal pad. The package requires soldering the thermal pad to PCB ground for thermal and mechanical reliability per TI SLUA271 land pattern guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ISET | Reference current programming input | Resistor-to-GND sets maximum LED current; VISET = 600 mV (EN1=EN2=1) yields full-scale output via 260× current mirror. |
| D1–D5 | LED cathode current sink outputs | Five independent, matched current sinks; D1 must connect highest-VF LED for proper VOUT regulation. |
| VIN | Main power input | Accepts 2.7–6.5 V supply; feeds charge pump and internal bias circuits. |
| VOUT | Charge pump output node | Supplies regulated voltage to LED anodes; regulated relative to D1 voltage drop (400 mV typical). |
| C1+, C1−, C2+, C2− | Flying capacitor connections | Interface with two 0.47 µF ceramic capacitors to implement 1x/1.5x fractional charge pump topology. |
| EN1, EN2 | Dual enable/dimming control inputs | Logic-level enables with hysteresis; support 4-step digital dimming or synchronized PWM dimming when tied together. |
| GND, PGND | Analog and power ground returns | Separate GND (analog reference) and PGND (high-current return); must be connected externally per layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Regulated current matching | ±0.4% matching between any two Dx outputs ensures consistent LED brightness without binning or trimming. |
| Adaptive 1x/1.5x conversion | Automatically switches modes to maintain >83% efficiency across full input range (2.7–6.5 V) and load conditions. |
| Integrated soft-start | 160 µs soft-start duration limits inrush current and prevents input rail collapse during startup from weak sources. |
| Low-EMI design | 1 MHz fixed-frequency operation + low-input-ripple architecture minimizes conducted and radiated emissions. |
| Dual enable dimming | EN1/EN2 support both 4-step digital dimming (0%, 33%, 67%, 100%) and seamless PWM dimming down to 1 kHz. |
Applications
| Smartphone Display Backlight | Tablet LCD Backlight |
|---|---|
Use Scenario: Powering 5 white LEDs in active-matrix TFT-LCD backlight for sub-7-inch smartphone displays. IC Role / Device Role / Timing Role: Constant-current charge pump regulator providing matched 25 mA per LED with PWM-controlled brightness scaling. Use Value: Enables uniform luminance, extended battery life via 1x/1.5x mode optimization, and compact BOM with only four external capacitors. | Use Scenario: Driving mixed-color LED arrays (e.g., 2 white + 6 green) in mid-size tablet LCD backlights. IC Role / Device Role / Timing Role: Multi-channel current sink managing different VF LEDs while regulating VOUT via D1 connection to highest-VF white LED. Use Value: Eliminates need for separate regulators; supports mixed LED types with no additional control logic or firmware overhead. |
| Portable Media Player UI Lighting | Camera Viewfinder Backlight |
Use Scenario: Illuminating OLED or segment LCD user interface elements in handheld media players. IC Role / Device Role / Timing Role: Low-noise, low-ripple current source enabling flicker-free dimming from 0–100% duty cycle PWM applied to EN1/EN2. Use Value: Delivers smooth brightness transitions and eliminates audible noise from inductor-based solutions. | Use Scenario: Providing stable, low-EMI backlight for electronic viewfinders in digital cameras and camcorders. IC Role / Device Role / Timing Role: High-efficiency charge pump powering 3–5 white LEDs with fast startup (<375 µs) and thermal protection during burst-mode operation. Use Value: Ensures reliable illumination during rapid on/off cycles and prevents thermal derating in confined optical modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED current source applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60231RGTR | Same pinout and function but supports higher max current per channel (30 mA vs. 25 mA) and wider input range (2.5–6.5 V). | Better suited for high-brightness displays requiring >25 mA/LED or lower-voltage battery chemistries (e.g., LiFePO₄). | Select TPS60231RGTR if system requires >25 mA per LED or operation below 2.7 V; otherwise TPS60230RGTR remains optimal for cost-sensitive 25 mA designs. |
| MAX8647ETE+ | 6-channel, 30 mA/channel, 2.7–5.5 V input, but uses external inductor and lacks integrated 1.5x charge pump mode. | Higher peak efficiency at light loads but larger solution size due to inductor; no fractional conversion for deep battery discharge. | Choose MAX8647ETE+ only if board space permits inductor placement and application does not require <3.1 V operation; TPS60230RGTR offers superior integration and low-VIN capability. |
Compared with TPS60231RGTR and MAX8647ETE+, the TPS60230RGTR delivers best-in-class integration for 25 mA white LED backlighting with minimal external components, lowest EMI, and guaranteed operation down to 2.7 V-making it ideal for mainstream smartphone and portable display designs where size, cost, and battery depth-of-discharge are critical.
Availability
TPS60230RGTR is available at Aetrix Electronics and suitable for smartphone display backlighting, portable media player UI lighting, camera viewfinder backlighting, and handheld PDA LCD applications requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for TPS60230RGTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and power management technologies, with leadership in precision analog and low-power IC design.
The TPS60230RGTR belongs to TI's white LED backlight driver product line, engineered specifically for compact, high-efficiency, multi-LED constant-current regulation in battery-powered portable displays using fractional charge pump architecture.
FAQ
What is the maximum LED current per channel supported by the TPS60230RGTR?
The TPS60230RGTR supports up to 25 mA per channel (D1–D5) under recommended operating conditions (3.2 V ≤ VIN ≤ 6.5 V). At VIN < 3.2 V, maximum current decreases linearly; at VIN = 3.1 V, max current drops to ~20 mA. Full 25 mA operation requires VIN ≥ 3.2 V and proper ISET resistor selection (e.g., 6 kΩ for ~27 mA with EN1=EN2=1).
How does the TPS60230RGTR achieve high efficiency across varying input voltages?
The TPS60230RGTR achieves high efficiency by automatically switching between 1x (direct pass-through) and 1.5x (charge pump boost) modes based on real-time comparison of VIN and required VOUT. When VIN exceeds LED forward voltage plus current sink dropout (~3.1 V), it operates in efficient 1x mode; below that, it engages 1.5x mode to sustain regulation-minimizing power loss across the full 2.7–6.5 V battery range.
Can the TPS60230RGTR drive LEDs with different forward voltages in the same design?
Yes, the TPS60230RGTR supports mixed LED types: the highest-VF LED must be connected to D1 to set VOUT regulation, while lower-VF LEDs (e.g., green, red) can be connected to D2–D5. The internal current mirrors ensure each channel delivers its programmed current regardless of VF mismatch, enabling cost-effective mixed-color backlighting without additional regulators.
What is the purpose of the separate GND and PGND pins on the TPS60230RGTR?
GND serves as the analog reference ground for ISET, EN1/EN2, and internal voltage references, while PGND carries high-frequency switching currents from the charge pump and current sinks. Separating them minimizes noise coupling into sensitive analog circuitry. TI recommends connecting both to the same low-impedance PCB ground plane near the device, with PGND routed directly to the exposed thermal pad.
Does the TPS60230RGTR support true analog dimming, or only PWM?
The TPS60230RGTR supports both: PWM dimming via EN1/EN2 (0–100% duty cycle, down to 1 kHz), and true analog dimming by applying a DC voltage (0–600 mV) to the ISET pin while holding EN1=EN2=1. At 0 mV, LED current is maximum; at 600 mV, current drops to zero-enabling smooth, flicker-free brightness control without PWM frequency artifacts.
TPS60230RGTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Switched Capacitor (Charge Pump)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 5
- Voltage - Supply (Min):
- 2.7V
- Voltage - Supply (Max):
- 6.5V
- Voltage - Output:
- 5.5V
- Current - Output / Channel:
- 25mA
- Frequency:
- 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (3x3)
TPS60230RGTR FAQ
1.How can I place an order for TPS60230RGTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60230RGTR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS60230RGTR reliable?
The price and inventory of TPS60230RGTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60230RGTR is usually 5 days.
3.What payment methods are accepted for TPS60230RGTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60230RGTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60230RGTR?
TPS60230RGTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60230RGTR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS60230RGTR?
For technical support, including TPS60230RGTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60230RGTR requirements.
6.How does Aetrix verify that TPS60230RGTR is sourced from the original manufacturer or authorized distributors?
All TPS60230RGTR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS60230RGTR meets industry standards.
7.What is the process for return or replacement of TPS60230RGTR?
All TPS60230RGTR units undergo pre-shipment inspection (PSI). If there is an issue with TPS60230RGTR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS60230RGTR part is unused and in its original packaging.
Return procedure for TPS60230RGTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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