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Texas Instruments HPA00234DRCRG4
- Part No.:
- HPA00234DRCRG4
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- -
- Datasheet:
-
HPA00234DRCRG4.pdf
- Description:
- LED LIGHTING DRIVERS
- Quantity:
- Payment:
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Inventory:3,445
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Product details
Overview
HPA00234DRCRG4 from Texas Instruments is a dual-output boost regulator IC designed for clamshell mobile phones with OLED sub-display and WLED LCD backlight. It delivers up to 27 V on each output, integrates a 0.7-A N-channel MOSFET and built-in power diode, and operates with PFM control for OLED voltage regulation and 1.2-MHz PWM for WLED current regulation.
For engineers reviewing the HPA00234DRCRG4 datasheet, HPA00234DRCRG4 pinout, HPA00234DRCRG4 application, or HPA00234DRCRG4 equivalent, key selection criteria include input-to-output isolation, individually programmable outputs via external resistors, short-circuit and overvoltage protection, soft-start implementation, and compatibility with 3×3 mm QFN packaging for space-constrained clamshell phone designs.
Technical Context
The HPA00234DRCRG4 uses a single-inductor dual-output architecture where one boost stage feeds both a low-dropout linear regulator (LDO) for VOUT and a low-side current sink for IOUT. Feedback selection is dynamic: in dual-output mode, it automatically chooses between V(IOUT)–VOUT and IFB voltage based on headroom requirements and low-threshold triggers (e.g., V(IFB_L) = 60 mV).
Control modes are functionally segregated: PFM governs VOUT-only operation for high light-load efficiency, while fixed-frequency 1.2-MHz PWM enables precise WLED current regulation and supports up to 30 kHz PWM dimming. Overvoltage protection thresholds differ by variant-HPA00234DRCRG4 corresponds to TPS61140 with 28 V OVP-and thermal shutdown activates at 160°C with 15°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 6 V - supports single-cell Li-ion and Li-poly battery operation without pre-regulation. |
| Max Output Voltage | 27 V - sufficient to drive 4–6 series WLEDs or high-voltage OLED bias rails. |
| Integrated Switch | 0.7-A N-channel MOSFET with 0.6–0.9 Ω rDS(on) - eliminates need for external high-current switch. |
| Switching Frequency | 1.2 MHz (PWM mode) - enables use of small 10 µH inductor and compact 4.7 µF input/output capacitors. |
| OVP Threshold | 28 V - protects internal 30-V FET and external 25-V output capacitors from overvoltage failure. |
| Efficiency | Up to 82% - achieved via PFM at light loads and optimized LDO headroom management. |
| Package | 10-pin 3×3 mm QFN with exposed thermal pad - provides thermal performance suitable for handheld thermal constraints. |
Pinout & Package
The HPA00234DRCRG4 is housed in a 10-pin, 3×3 mm QFN package with an exposed thermal pad soldered to analog ground for enhanced power dissipation. Pin numbering follows top-view orientation with Pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | OLED voltage output | Regulated voltage output via integrated LDO; disabled when SELV = low. |
| VFB | Voltage feedback input | Sets VOUT via external resistor divider; regulated to 1.229 V reference. |
| SELV | OLED enable control | Logic-high enables VOUT; internal pull-down ensures safe default-off state. |
| SELI | WLED enable/dimming input | Logic-high enables IOUT; PWM signal applied here achieves linear brightness dimming. |
| VIN | Main power input | Supplies boost converter and internal circuitry; UVLO triggers below 1.65 V. |
| IFB | Current feedback input | Sets WLED current sink regulation point at 330 mV; open-circuit disables current output. |
| ISET | Current programming input | Resistor-connected pin sets IOUT magnitude via KISET = 900 typical multiplier. |
| GND | Power and signal ground | Reference for all analog and power circuits; requires low-impedance connection to input/output caps. |
| IOUT | WLED current output | Constant-current sink output; directly connected to boost node; max 35 mA into LDO path. |
| SW | Internal switching node | Connects to external inductor; carries discontinuous current in PFM mode and PWM ripple in current mode. |
Key Features
| Feature | Design Value |
|---|---|
| Single-inductor dual-output topology | Reduces BOM count and PCB area vs. dual-boost solutions; shares magnetic component between OLED and WLED rails. |
| Input-to-output isolation | Prevents fault propagation: disabling SELV or SELI fully isolates respective output path from VIN and SW node. |
| Built-in soft start | 16-step current-sink ramp (64 clock cycles/step) prevents inrush during WLED turn-on; LDO-controlled VOUT ramp limits dI/dt. |
| Dedicated dimming interface | SELI accepts external PWM signals up to 30 kHz; disables soft start during dimming for improved linearity and reduced audible noise. |
| Overvoltage and thermal protection | 28 V OVP halts switching immediately on overvoltage; 160°C thermal shutdown with 15°C hysteresis prevents permanent damage. |
Applications
| Clamshell Mobile Phone OLED Display | Clamshell Mobile Phone WLED Backlight |
|---|---|
Use Scenario: Powering monochrome or color OLED sub-display in flip-phone hinge design with tight space and thermal constraints. IC Role / Device Role / Timing Role: Provides regulated 15 V bias rail via LDO-based VOUT output; controlled by PFM for >80% efficiency at 2–20 mA load. Use Value: Low output ripple (<15 mV p-p) combined with LDO PSRR >20 dB ensures stable pixel voltage and eliminates visible flicker or ghosting. | Use Scenario: Driving 4-series white LED backlight for main LCD panel in clamshell handset with dynamic brightness control. IC Role / Device Role / Timing Role: Delivers constant current up to 25 mA per string via IOUT sink; regulated by 1.2-MHz PWM loop with 30 kHz dimming support. Use Value: Enables smooth, linear 20–100% brightness scaling using external PWM without audible inductor whine or capacitor buzz. |
| Dual-Rail Portable Medical Display | Low-Power Industrial Handheld UI |
Use Scenario: Supplying separate high-voltage bias (OLED) and current-source (WLED) rails for ruggedized diagnostic display with dual-screen capability. IC Role / Device Role / Timing Role: Simultaneously powers OLED status screen and WLED main display using BOTH-ON mode with automatic feedback arbitration. Use Value: Eliminates need for two discrete boost converters; maintains <330 mV headroom across LDO and current sink for optimal efficiency under mixed loads. | Use Scenario: Supporting compact industrial PDA with OLED menu interface and LED status indicators powered from single Li-ion cell. IC Role / Device Role / Timing Role: Supplies 12–18 V OLED rail and 20 mA LED current from 3.6 V nominal input; leverages UVLO (1.65 V) for deep battery discharge tolerance. Use Value: Extends usable battery life by >15% vs. fixed-frequency solutions due to PFM efficiency at standby OLED current (2 mA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61141DRCR | OVP threshold 22 V (vs. 28 V); identical pinout, package, and functional block diagram. | Suitable for systems with lower-rated output capacitors or reduced WLED string count (≤3 LEDs). | Select TPS61141DRCR when 22 V OVP aligns with system-level capacitor derating and lower maximum output voltage suffices. |
| RT9397BF | Single-output WLED driver only; no VOUT/LDO path; 1.5 MHz switching; 30 V OVP; 12-pin WQFN. | Lacks OLED voltage rail capability; requires separate solution for dual-rail applications. | Choose RT9397BF only for WLED-only designs where board space allows separate OLED bias supply. |
Compared with TPS61141DRCR and RT9397BF, HPA00234DRCRG4 uniquely integrates both OLED voltage regulation and WLED current driving in one 10-pin QFN, enabling true dual-rail power delivery without compromise on OVP margin or package size.
Availability
HPA00234DRCRG4 is available at Aetrix Electronics and suitable for clamshell mobile phones, portable medical displays, industrial handheld UIs, and dual-rail consumer electronics requiring stable component supply across extended production lifecycles.
Supply support for HPA00234DRCRG4 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 delivering analog, embedded processing, and logic solutions for industrial, automotive, and personal electronics markets.
The TPS61140 product line was engineered specifically for space-constrained dual-display mobile devices, combining high-efficiency boost conversion with integrated LDO and current sink to replace discrete multi-IC power architectures in clamshell phones.
FAQ
What is the overvoltage protection threshold for HPA00234DRCRG4?
The HPA00234DRCRG4 implements a 28 V overvoltage protection (OVP) threshold, consistent with the TPS61140 variant. When the boost output exceeds this level, the device halts switching immediately to protect the internal 30-V MOSFET and external 25-V output capacitors. Recovery occurs automatically once the output falls below the OVP threshold minus hysteresis (550 mV). This OVP setting is fixed and not user-adjustable.
How does HPA00234DRCRG4 manage simultaneous OLED and WLED operation?
HPA00234DRCRG4 enters BOTH-ON mode when SELV and SELI are both high. In this mode, it dynamically selects feedback between V(IOUT)–VOUT and IFB based on real-time headroom requirements. If the OLED LDO needs higher boost voltage, V(IOUT)–VOUT becomes the feedback signal; if WLED current regulation demands more, IFB takes priority. The device ensures stable regulation of both outputs without external intervention.
Can HPA00234DRCRG4 support PWM dimming above the audible range?
Yes, HPA00234DRCRG4 supports PWM dimming up to 30 kHz, well above the 20 kHz upper limit of human hearing. Its current sink settling time (tsink = 6 µs) and disabled soft start during PWM allow clean, linear dimming at 20–30 kHz frequencies. This eliminates audible noise from inductor vibration or capacitor microphonics, making it suitable for quiet-environment applications like medical or premium consumer devices.
What is the maximum continuous output current capability of HPA00234DRCRG4?
The HPA00234DRCRG4 supports up to 35 mA continuous output current on both IOUT and VOUT paths, limited by the integrated LDO and current sink circuitry-not the boost stage. While the 0.7-A switch and PFM/PWM control enable higher theoretical output, the linear regulation blocks cap sustained current at 35 mA to maintain stability, thermal safety, and ripple performance. This value is confirmed across –40°C to 85°C ambient conditions.
Is HPA00234DRCRG4 pin-compatible with other TPS6114x variants?
Yes, HPA00234DRCRG4 is pin-compatible with all TPS61140/TPS61141 variants in the DRC package (3×3 mm QFN-10), including TPS61140DRCR, TPS61140DRCT, TPS61141DRCR, and TPS61141DRCT. All share identical pinout, thermal pad layout, and terminal functions. The only differences are OVP threshold (28 V vs. 22 V) and device marking-no PCB redesign is needed when substituting within the same package variant.
HPA00234DRCRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- -
- Topology:
- -
- Internal Switch(s):
- -
- Number of Outputs:
- -
- Voltage - Supply (Min):
- -
- Voltage - Supply (Max):
- -
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HPA00234DRCRG4 FAQ
1.How can I place an order for HPA00234DRCRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for HPA00234DRCRG4 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 HPA00234DRCRG4 reliable?
The price and inventory of HPA00234DRCRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HPA00234DRCRG4 is usually 5 days.
3.What payment methods are accepted for HPA00234DRCRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HPA00234DRCRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HPA00234DRCRG4?
HPA00234DRCRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HPA00234DRCRG4 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 HPA00234DRCRG4?
For technical support, including HPA00234DRCRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HPA00234DRCRG4 requirements.
6.How does Aetrix verify that HPA00234DRCRG4 is sourced from the original manufacturer or authorized distributors?
All HPA00234DRCRG4 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 HPA00234DRCRG4 meets industry standards.
7.What is the process for return or replacement of HPA00234DRCRG4?
All HPA00234DRCRG4 units undergo pre-shipment inspection (PSI). If there is an issue with HPA00234DRCRG4, 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 HPA00234DRCRG4 part is unused and in its original packaging.
Return procedure for HPA00234DRCRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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