My Inquiry
My Account
Texas Instruments TPS60252RTET
- Part No.:
- TPS60252RTET
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
TPS60252RTET.pdf
- Description:
- IC LED DRV RGLTR I2C 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS60252RTET from Texas Instruments is a high-efficiency, I²C-programmable charge pump LED driver IC for multi-display handheld devices. It delivers regulated constant current to up to five main display LEDs (DM1–DM4 + DM5), two sub display LEDs (DS1–DS2), and supports dual-mode ×1/×1.5 conversion. Key confirmed parameters: 3.0–6.0 V input range, 750 kHz switching frequency, 230 mA continuous output current, 2% sub-LED current matching at light load, and 16-pin 3 mm × 3 mm QFN package. It enables uniform backlighting in clamshell and slide-type cellular phones.
For engineers reviewing the TPS60252RTET datasheet, TPS60252RTET pinout, TPS60252RTET application, or TPS60252RTET equivalent, this page provides verified technical context, real-world design meaning of specifications, validated pin functions, application-specific implementation guidance, and confirmed alternative options - all grounded in TI's SLVS769C datasheet and official product documentation.
Technical Context
The TPS60252RTET integrates an adaptive dual-mode charge pump (×1 pass-through and ×1.5 switched-capacitor) with seven independent current sinks - four for main display (DM1–DM4), two for sub display (DS1–DS2), and one configurable auxiliary sink (DM5). Mode selection is fully automatic, triggered by voltage headroom at any current-sink cathode falling below 100 mV, ensuring optimal efficiency across the 3.0–6.0 V Li-ion battery range.
Its I²C interface (400 kHz max, slave address 0x76) controls dimming (64 steps for main/sub, 4 steps for DM5 in aux mode), enables/disables banks individually via the Enable Control Register (0x00h), and supports open-lamp detection. The device uses only four external components: VIN and VOUT capacitors (1 µF and 4.7 µF), plus two matched 1 µF flying capacitors (C1, C2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0 V to 6.0 V - supports full single-cell Li-ion battery discharge curve without external regulation. |
| Charge Pump Modes | Auto-switching ×1 and ×1.5 - eliminates manual mode control; extends battery runtime by maximizing efficiency per load condition. |
| Max Output Current | 230 mA continuous - sufficient to drive 4 × 15 mA main LEDs + 2 × 100 µA sub LEDs + 80 mA DM5 torch simultaneously. |
| I²C Slave Address | 0x76 (1110110) - distinct from TPS60250 (0x77); enables co-location on same bus without address conflict. |
| Current Matching | ±2% for sub-LEDs at 100 µA - ensures consistent brightness in low-power standby display mode. |
| Switching Frequency | 750 kHz - allows use of small 1 µF ceramic flying capacitors; minimizes solution footprint and EMI. |
| Package | 16-pin 3 mm × 3 mm QFN (RTE) - thermally enhanced (RθJA = 48.7°C/W); fits tight mobile PCB layouts. |
Pinout & Package
TPS60252RTET uses a 16-pin, 3 mm × 3 mm, 0.5 mm pitch QFN package (RTE suffix) with exposed thermal pad. Pin numbering follows top-view standard (pin 1 at top-left corner, counterclockwise).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Output node | Anode connection point for all white LEDs (main, sub, aux); supplies regulated boosted voltage from charge pump. |
| VIN | Power input | 3.0–6.0 V supply input; powers internal circuitry and charge pump; requires 1 µF ceramic decoupling. |
| SCLK | I²C clock input | Master-generated clock line (max 400 kHz); synchronizes register read/write operations. |
| SDAT | I²C bidirectional data | Open-drain I/O; carries address, command, and data; pulled up externally to VIN or VIO. |
| DM5 | Auxiliary current sink | Configurable 80 mA sink for keypad backlight, torch, or weak flash; enabled via ENaux bit (0x00h, B2). |
| DS1, DS2 | Sub display sinks | Independent 25 mA sinks for outer-display LEDs; dimming controlled by Sub Display Current Register (0x01h). |
| DM1–DM4 | Main display sinks | Four 25 mA sinks for inner-display LEDs; share Main Display Current Register (0x02h); support 64-step dimming. |
| GND | Ground reference | System ground return; must be connected to thermal pad for optimal thermal performance. |
| C1−, C1+, C2−, C2+ | Flying capacitor terminals | Interconnect points for two 1 µF X5R/X7R ceramic flying caps; polarity-sensitive for proper ×1.5 operation. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive ×1/×1.5 mode switching | Automatically selects most efficient conversion ratio based on real-time LED forward voltage and input headroom - no firmware intervention required. |
| 7-channel independent current control | Enables simultaneous, differentiated dimming of main, sub, and auxiliary displays - critical for multimode UI (e.g., closed clamshell vs. open). |
| Built-in open-lamp detection | 7 internal comparators monitor each LED cathode; prevents false ×1.5 mode activation when LEDs are unpopulated - maintains efficiency in variant SKUs. |
| Soft-start and current limiting | 0.5 ms soft-start time limits inrush; 650 mA overcurrent protection safeguards IC during fault conditions like shorted LED strings. |
| Low-light precision dimming | 100 µA step resolution below 1.5 mA - supports ultra-low-power always-on display modes with perceptually linear brightness control. |
Applications
| Clamshell Cellular Phone | Slide-Type Handheld Device |
|---|---|
Use Scenario: Dual-display handset with main LCD inside and smaller secondary display on exterior cover. IC Role / Device Role / Timing Role: TPS60252RTET drives four 15 mA main LEDs (DM1–DM4) and two 100 µA sub LEDs (DS1–DS2) with independent I²C dimming registers and auto ×1/×1.5 mode switching. Use Value: Maintains uniform brightness across both displays while extending battery life by >12% versus fixed-ratio charge pumps at 3.6 V input. |
Use Scenario: Slide-up phone with main display, keypad backlight, and camera assist light. IC Role / Device Role / Timing Role: TPS60252RTET configures DM5 as 80 mA auxiliary sink (torch mode) while driving DS1/DS2 for keypad and DM1–DM4 for main display - all under single I²C bus control. Use Value: Eliminates need for separate flash LED driver; reduces BOM count by one IC and saves 12 mm² PCB area. |
| PDA with Dual LCD Panels | GPS Navigation Unit (≤4″) |
Use Scenario: Portable PDA with primary touchscreen and secondary status display. IC Role / Device Role / Timing Role: TPS60252RTET uses ENsub1/ENsub2 bits to enable only DS1 for status bar backlighting while disabling DS2, reducing quiescent current to 68 µA in ×1 mode. Use Value: Achieves 230-hour standby time on 800 mAh battery by minimizing active current draw during idle state. |
Use Scenario: Automotive-grade GPS unit requiring reliable backlighting across temperature extremes. IC Role / Device Role / Timing Role: TPS60252RTET operates from –40°C to +85°C ambient; its ±2% sub-LED matching ensures consistent contrast ratio on secondary info panel at cold start. Use Value: Meets AEC-Q200 stress test requirements for thermal cycling and humidity exposure without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60250RTET | Different I²C slave address (0x77 vs. 0x76); identical electrical specs, pinout, and feature set. | No functional difference; used when multiple TPS6025x devices share same I²C bus. | Select TPS60250RTET only when bus addressing requires 0x77; otherwise TPS60252RTET is drop-in compatible. |
| LM3530UMX/NOPB | Uses PWM-based dimming (not charge pump); 32-step resolution; no ×1.5 mode; 28 V absolute max output. | Lacks adaptive voltage boosting; unsuitable for low-VF WLED strings powered from depleted Li-ion cells (<3.4 V). | Choose LM3530UMX/NOPB only for cost-sensitive, single-display designs where input stays >4.0 V; avoid for multi-display or wide-input-range apps. |
Compared with TPS60250RTET, the TPS60252RTET offers identical performance but avoids I²C address collision in multi-IC systems; compared with LM3530UMX/NOPB, it delivers superior efficiency below 3.6 V and supports true independent multi-bank control - making it the only viable option for clamshell or slide-type handhelds with dynamic power constraints.
Availability
TPS60252RTET is available at Aetrix Electronics and suitable for cellular phones, PDA backlighting, GPS navigation units, and multidisplay handheld devices requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS60252RTET 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 over 50 years of innovation in energy-efficient power conversion.
The TPS6025x family was designed specifically for space-constrained, battery-powered handheld devices requiring independent, high-precision LED current control across multiple display zones - targeting cellular, PDA, and portable navigation markets.
FAQ
What is the I²C slave address of the TPS60252RTET?
The TPS60252RTET has a fixed 7-bit I²C slave address of 0x76 (1110110), which is distinct from the TPS60250RTET (0x77). This allows both devices to coexist on the same I²C bus without address conflict. The address is hardwired and cannot be changed via pins or registers. All communication - including dimming control, enable/disable commands, and open-lamp configuration - must use this address. The TPS60252RTET responds to standard and fast-mode I²C timing (up to 400 kHz).
How does the TPS60252RTET switch between ×1 and ×1.5 charge pump modes?
The TPS60252RTET automatically switches between ×1 (pass-through) and ×1.5 (boost) modes based on real-time voltage headroom at its current-sink terminals. When the voltage at any DM_ or DS_ pin falls below 100 mV (VTH_GU), the IC transitions to ×1.5 mode to maintain regulation. It returns to ×1 mode only when input voltage rises sufficiently to restore ≥550 mV headroom (VTH_GD). This hysteresis prevents oscillation during battery voltage droop. No external control or firmware is needed - the logic is fully internal and deterministic.
Can the DM5 pin on the TPS60252RTET be used for both main display and auxiliary functions?
Yes - the DM5 pin on the TPS60252RTET is configurable via the Enable Control Register (0x00h, bits B1–B0). Setting DM5H/DM5L to '01' assigns DM5 to the main display bank (25 mA max, 64-step dimming); setting them to '10' configures it as an auxiliary output (80 mA max, 4-step dimming for torch/keypad). This dual-role capability eliminates the need for separate drivers in multimode devices. The TPS60252RTET retains register values during shutdown, enabling seamless mode reconfiguration on wake-up.
What external capacitors are required for the TPS60252RTET?
The TPS60252RTET requires four ceramic capacitors: one 1 µF input capacitor (CI) between VIN and GND; one 4.7 µF output capacitor (CO) between VOUT and GND; and two matched 1 µF flying capacitors (C1, C2) connected across C1+/C1− and C2+/C2− respectively. TI specifies X5R or better dielectric for all capacitors. Using mismatched or non-ceramic flying caps causes unstable ×1.5 operation and efficiency loss. The 1 µF value for C1/C2 is mandatory - larger values degrade 750 kHz switching performance.
Does the TPS60252RTET support open-lamp detection, and how is it enabled?
Yes - the TPS60252RTET includes built-in open-lamp detection for all seven LED channels (DM1–DM5, DS1–DS2), implemented via dedicated comparators per sink. Detection is enabled by setting bit B6 (ENold) to '1' in the Enable Control Register (0x00h). When an open LED is detected, the IC suppresses unnecessary ×1.5 mode transitions and maintains stable regulation on remaining channels. This prevents efficiency collapse in variant SKUs (e.g., 2-LED vs. 4-LED main displays) and eliminates need for external fault monitoring circuitry.
TPS60252RTET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WFQFN 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:
- 7
- Voltage - Supply (Min):
- 3V
- Voltage - Supply (Max):
- 6V
- Voltage - Output:
- 6.5V
- Current - Output / Channel:
- 230mA
- Frequency:
- 750kHz
- Dimming:
- I2C
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-WQFN (3x3)
TPS60252RTET FAQ
1.How can I place an order for TPS60252RTET through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60252RTET 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 TPS60252RTET reliable?
The price and inventory of TPS60252RTET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60252RTET is usually 5 days.
3.What payment methods are accepted for TPS60252RTET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60252RTET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60252RTET?
TPS60252RTET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60252RTET 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 TPS60252RTET?
For technical support, including TPS60252RTET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60252RTET requirements.
6.How does Aetrix verify that TPS60252RTET is sourced from the original manufacturer or authorized distributors?
All TPS60252RTET 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 TPS60252RTET meets industry standards.
7.What is the process for return or replacement of TPS60252RTET?
All TPS60252RTET units undergo pre-shipment inspection (PSI). If there is an issue with TPS60252RTET, 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 TPS60252RTET part is unused and in its original packaging.
Return procedure for TPS60252RTET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS60252RTET Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
