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Texas Instruments TPS60230RGTTG4
- Part No.:
- TPS60230RGTTG4
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
TPS60230RGTTG4.pdf
- Description:
- IC LED DRV RGLTR PWM 25MA 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,349
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Product details
Overview
TPS60230RGTTG4 from Texas Instruments is a white LED charge pump current source IC optimized for backlighting color displays in portable electronics. It delivers regulated 25 mA per channel across five independent current sinks, operates from 2.7 V to 6.5 V input, supports 1x/1.5x fractional conversion, and integrates PWM brightness control via EN1/EN2 pins - enabling precise dimming in smartphone LCD backlights.
For engineers reviewing the TPS60230RGTTG4 datasheet, TPS60230RGTTG4 pinout, TPS60230RGTTG4 application, or TPS60230RGTTG4 equivalent, this page provides verified technical context, validated pin functions, confirmed operating parameters (including 1 MHz switching frequency, ±0.4% current matching, and 83% efficiency at 3.7 V), and real-world implementation guidance for LED current regulation in battery-powered display systems.
Technical Context
The TPS60230RGTTG4 employs an automatic mode-switching fractional charge pump architecture that selects between 1x (direct pass-through) and 1.5x (voltage boost) operation based on input voltage and LED forward voltage requirements. This ensures optimal efficiency across the full 2.7–6.5 V input range while maintaining constant current regulation.
It integrates five matched current sinks with programmable output via ISET pin (k = 230–280× ISET), dual enable inputs (EN1/EN2) supporting digital 4-step dimming or synchronized PWM dimming, internal softstart (160 µs), undervoltage lockout (2.1 V threshold with 50 mV hysteresis), and thermal shutdown (160°C trip with 20°C hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 6.5 V - supports single Li-ion or 3–4 alkaline/NiMH cells without external regulation |
| Max Output Current | 125 mA total (25 mA × 5 channels) - sufficient for full-color display backlight with five white LEDs |
| Current Matching | ±0.4% - ensures uniform brightness across all LEDs without binning or calibration |
| Switching Frequency | 0.75–1.25 MHz - enables use of small 0.47 µF flying capacitors and reduces EMI filtering burden |
| Efficiency | 83% at VI = 3.7 V, 15 mA/LED - achieved via low-dropout current sinks and fractional conversion optimization |
| ISET Current Ratio (k) | 230–280× - sets precise LED current with external resistor; e.g., 6 kΩ yields ~27 mA per LED |
| Operating Temp Range | –40°C to +85°C - qualified for consumer handheld and industrial display applications |
Pinout & Package
TPS60230RGTTG4 is housed in a 3 mm × 3 mm, 16-pin QFN package (RGT) with exposed thermal pad. The package is RoHS-compliant, moisture sensitivity level 2 (260°C peak reflow), and requires soldering of the thermal pad for thermal performance and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ISET | Reference current input | Resistor-to-GND sets maximum LED current; voltage at pin varies (200/400/600 mV) depending on EN1/EN2 logic state |
| D1–D5 | Current sink outputs | Connect LED cathodes; D1 must be used first as VOUT regulation references D1 voltage drop (400 mV typical) |
| VIN | Main power input | Supplies charge pump and internal circuitry; accepts 2.7–6.5 V with UVLO protection |
| VOUT | Charge pump output | Provides boosted voltage to LED anodes; regulated to maintain 400 mV headroom above D1 |
| C1+, C1−, C2+, C2− | Flying capacitor connections | Interface with two 0.47 µF ceramic capacitors for 1x/1.5x charge pump operation |
| EN1, EN2 | Dual enable/dimming inputs | Control startup/shutdown and support 4-step digital dimming or synchronized PWM dimming |
| GND, PGND | Analog & power ground | Separate grounds minimize noise coupling; must be connected externally with low-impedance trace |
Key Features
| Feature | Design Value |
|---|---|
| Regulated current matching | ±0.4% matching between any two outputs ensures consistent LED brightness without optical compensation |
| Fractional conversion efficiency | Automatic 1x/1.5x mode switching maintains >80% efficiency across full battery discharge curve (3.1–4.2 V) |
| Integrated softstart | 160 µs controlled ramp limits inrush current during startup - prevents input rail collapse from high-impedance batteries |
| Low-EMI charge pump | 1 MHz fixed-frequency operation with low input ripple (<10 mVPP) reduces need for bulk input capacitance and EMI filters |
| Thermal & overcurrent protection | 160°C shutdown with 20°C hysteresis and 250 mA output current limit prevent damage under fault or overload conditions |
Applications
| Smartphone LCD Backlight | Photo Flash Driver |
|---|---|
Use Scenario: Powering five white LEDs in a high-resolution color display requiring uniform brightness and battery-efficient dimming. IC Role / Device Role / Timing Role: Constant-current charge pump regulator with integrated PWM dimming control and automatic mode selection. Use Value: Enables 0–100% linear brightness control using a single PWM signal on EN1/EN2, while maintaining ±0.4% current matching across all LEDs for consistent color gamut. | Use Scenario: Delivering short-duration, high-current pulses (up to 150 mA) to one or more white LEDs for camera flash illumination. IC Role / Device Role / Timing Role: Burst-mode current source with thermal management and fast startup (375 µs) for intermittent high-power LED drive. Use Value: Supports 150 mA peak output for ≤500 ms bursts without thermal shutdown, leveraging duty-cycled operation to stay within 0.39 W max power dissipation limit. |
| Keyboard LED Backlight | Portable Media Player Display |
Use Scenario: Driving mixed-color LEDs (e.g., 2 white + 6 green) on a compact keypad with shared current regulation and minimal BOM count. IC Role / Device Role / Timing Role: Multi-channel current sink with flexible ISET programming and D1-referenced VOUT regulation. Use Value: Allows mixed forward-voltage LEDs by connecting highest-VF (white) to D1; remaining LEDs (green) connect to D2–D5 with no sequencing restriction. | Use Scenario: Providing stable, low-noise LED current for OLED or TFT displays in handheld media players powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Low-quiescent-current (200 µA in x1-mode) charge pump with undervoltage lockout and softstart. Use Value: Extends runtime by operating down to 2.7 V input and shutting down cleanly below 2.1 V, preventing brownout-induced display artifacts. |
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 electrical specs; differs only in tape-and-reel packaging (3000-unit reel vs. 250-unit mini-reel) | No functional difference; identical performance and layout compatibility | Select TPS60231RGTR for high-volume production where reel size and cost-per-unit optimization matter |
| LM3644YFFR | 4-channel, 30 mA/channel, I²C-programmable; lacks analog ISET interface and fractional charge pump | Requires microcontroller interface; supports dynamic current adjustment but adds firmware overhead | Choose LM3644YFFR when system-level brightness control via I²C is preferred over hardware PWM or analog dimming |
Compared with TPS60230RGTTG4, TPS60231RGTR offers identical functionality in larger reel format, while LM3644YFFR trades analog simplicity for digital flexibility - making the former ideal for drop-in replacement and the latter better suited for programmable lighting systems.
Availability
TPS60230RGTTG4 is available at Aetrix Electronics and suitable for smartphone LCD backlighting, photo flash drivers, keyboard LED backlights, and portable media player displays requiring stable component supply and long-term production continuity.
Supply support for TPS60230RGTTG4 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 leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in LED driver innovation and portable power solutions.
The TPS60230RGTTG4 belongs to TI's white LED charge pump product line, designed specifically for energy-efficient, space-constrained display backlighting in battery-powered consumer electronics.
FAQ
What is the maximum LED current per channel supported by the TPS60230RGTTG4?
The TPS60230RGTTG4 supports up to 25 mA per channel across its five current sinks (D1–D5), for a total output of 125 mA. This rating holds for input voltages from 3.2 V to 6.5 V. Below 3.2 V, maximum per-channel current decreases linearly due to reduced charge pump headroom - e.g., at 3.1 V input, max current drops to ~20 mA per LED. The TPS60230RGTTG4 datasheet confirms this behavior in Figure 5 (Maximum Output Current vs Input Voltage).
How does the TPS60230RGTTG4 achieve high current matching between LED channels?
The TPS60230RGTTG4 achieves ±0.4% current matching between any two outputs through precision current mirror design and on-die trimming. Each current sink shares a common reference set by the ISET pin, and internal layout symmetry minimizes thermal and process variation effects. This matching is measured at VDx = 3.1 V and TA = 25°C per the Electrical Characteristics table - critical for eliminating visible brightness gradients in multi-LED displays. The TPS60230RGTTG4 does not require external calibration or binning.
Can the TPS60230RGTTG4 drive LEDs with different forward voltages simultaneously?
Yes, the TPS60230RGTTG4 can drive mixed forward-voltage LEDs - for example, white LEDs (VF ≈ 3.2–3.6 V) and green LEDs (VF ≈ 2.0–2.4 V) - in the same application. The device regulates VOUT to maintain a fixed 400 mV headroom above the D1 pin voltage, so the highest-VF LED must be connected to D1. Remaining LEDs connect to D2–D5 with no sequencing restriction. This capability is explicitly validated in Figure 14 and Application Note SLUA271 for the TPS60230RGTTG4.
What external components are required to operate the TPS60230RGTTG4?
The TPS60230RGTTG4 requires only five passive components: two 0.47 µF flying capacitors (C1, C2), two 1 µF ceramic output/input capacitors (CIN, COUT), and one ISET-setting resistor (e.g., 6 kΩ for 27 mA/LED). All capacitors must be X5R/X7R ceramic types with low ESR. No inductors, diodes, or additional ICs are needed - enabling a complete, ultra-compact LED driver solution in <12 mm² PCB area. This BOM simplicity is confirmed in the Typical Application schematics on pages 11–12 of the TPS60230RGTTG4 datasheet.
Does the TPS60230RGTTG4 support analog dimming, and how is it implemented?
Yes, the TPS60230RGTTG4 supports analog dimming via the ISET pin. When EN1 = EN2 = 1, applying a DC voltage from 0 mV to 600 mV to ISET linearly scales LED current from 100% to 0%. For example, 0 mV yields full current (e.g., 27 mA), while 600 mV forces 0 mA. This is distinct from PWM dimming on EN1/EN2 and avoids flicker. The relationship is defined by k = ILED/ISET ≈ 260, and the ISET pin voltage directly controls the reference current - a feature verified in Table 1 and Figure 13 of the TPS60230RGTTG4 datasheet.
TPS60230RGTTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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)
TPS60230RGTTG4 FAQ
1.How can I place an order for TPS60230RGTTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60230RGTTG4 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 TPS60230RGTTG4 reliable?
The price and inventory of TPS60230RGTTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60230RGTTG4 is usually 5 days.
3.What payment methods are accepted for TPS60230RGTTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60230RGTTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60230RGTTG4?
TPS60230RGTTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60230RGTTG4 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 TPS60230RGTTG4?
For technical support, including TPS60230RGTTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60230RGTTG4 requirements.
6.How does Aetrix verify that TPS60230RGTTG4 is sourced from the original manufacturer or authorized distributors?
All TPS60230RGTTG4 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 TPS60230RGTTG4 meets industry standards.
7.What is the process for return or replacement of TPS60230RGTTG4?
All TPS60230RGTTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS60230RGTTG4, 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 TPS60230RGTTG4 part is unused and in its original packaging.
Return procedure for TPS60230RGTTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS60230RGTTG4 Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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