My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX1910EUB+TG05
- Part No.:
- MAX1910EUB+TG05
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- LED Drivers
- Package:
- -
- Datasheet:
-
MAX1910EUB+TG05.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:4,963
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX1910EUB+TG05 from Maxim Integrated is a 1.5x/2x fractional charge-pump white LED driver IC that delivers up to 120mA regulated output current from a 2.7V–5.3V input supply, operates at fixed 750kHz switching frequency, features automatic mode selection between 1.5x and 2x operation, and supports voltage- or current-regulated output for backlighting in portable displays.
For engineers reviewing the MAX1910EUB+TG05 datasheet, MAX1910EUB+TG05 pinout, MAX1910EUB+TG05 application, or MAX1910EUB+TG05 equivalent, this page provides verified technical context, confirmed pin functions, real-world design meaning of key specs, validated alternative parts, and supply-chain support details specific to the MAX1910EUB+TG05 variant.
Technical Context
The MAX1910EUB+TG05 implements a dual-mode switched-capacitor DC-DC converter with automatic transition between 1.5x (series charging, parallel transfer) and 2x (doubler) topologies based on input-to-output voltage ratio. It uses fixed 750kHz, 50% duty-cycle clocking and regulates output by controlling charge-transfer rate-not duty cycle-ensuring predictable noise spectrum and low input ripple.
Regulation is achieved via 200mV SET threshold with ±5% LED current accuracy; soft-start limits inrush by ramping output capacitor charge before enabling charge-pump action; shutdown disconnects load and reduces quiescent current to ≤1µA; thermal shutdown activates at +160°C with 15°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.3V - supports single-cell Li-ion, Li-polymer, or 3× alkaline battery inputs without external LDO pre-regulation. |
| Max Output Current | 120mA at VIN = 3.6V - sufficient to drive 4 white LEDs in series at typical forward voltage (~3.2V each). |
| Switching Frequency | 625–875kHz (typ. 750kHz) - enables use of small 0.47µF ceramic transfer capacitors and predictable EMI filtering. |
| SET Regulation Threshold | 0.19V to 0.21V - defines LED current as ILED = 0.2V / RSET, enabling precise current setting with standard resistor tolerances. |
| Shutdown Current | ≤1µA - ensures negligible battery drain during device sleep in portable applications like MP3 players or PDAs. |
| Undervoltage Lockout | 2.2V to 2.5V with 35mV hysteresis - prevents erratic operation during battery discharge and supports graceful brownout recovery. |
| Thermal Shutdown | +160°C activation with ~15°C hysteresis - protects against sustained overloads or output shorts without requiring external thermal management. |
Pinout & Package
MAX1910EUB+TG05 is housed in a 10-pin µMAX package (3.0mm × 3.0mm × 0.8mm, 0.65mm pitch), RoHS-compliant, with exposed pad for thermal enhancement. Pin numbering follows standard top-view orientation with Pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power and signal reference ground | Must be connected to low-impedance PCB ground plane; serves as return path for all internal switches and SET regulation. |
| IN1 / IN2 (Pins 2 & 8) | Input supply terminals | Parallel-connected inputs accept 2.7V–5.3V unregulated source; require local 2.2µF ceramic bypass to GND. |
| C1− / C1+ / C2− / C2+ (Pins 3,4,7,9) | Transfer capacitor interface | Direct connections for two 0.47µF ceramic flying capacitors; polarity-sensitive; define charge-transfer path topology. |
| OUT (Pin 5) | Regulated output node | Drives LED anodes; requires 2.2µF–4.7µF ceramic output capacitor; high-impedance in shutdown. |
| SHDN (Pin 6) | Logic-level enable control | Active-low input; <0.4V disables device and disconnects OUT from internal circuitry; >1.6V enables normal operation. |
| SET (Pin 10) | Current/voltage regulation feedback | Sets LED current via resistor to GND (ILED = 0.2V/RSET) or output voltage via resistor divider to OUT/GND. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-switching 1.5x/2x modes | Enables >80% efficiency across wide VIN range: 1.5x mode dominates above ~3.6V; 2x mode engages below ~2.7V for regulation continuity. |
| Fixed 750kHz switching | Eliminates variable-frequency noise spread; simplifies EMI filter design and allows consistent capacitor sizing (0.47µF ceramics). |
| 200mV current-sense threshold | Minimizes power loss in SET resistor network - e.g., 0.2V drop at 120mA consumes only 24mW vs. >100mW with 1V threshold. |
| No-inductor architecture | Removes magnetic component cost, size, and EMI concerns; ideal for ultra-thin handhelds where board height <1.0mm is critical. |
| Soft-start with ramped charge | Prevents >500mA input surge at startup; eliminates need for large input bulk capacitance or current-limiting FETs in battery-fed systems. |
Applications
| White LED Backlighting | Cellular Phone Display |
|---|---|
|
Use Scenario: Driving 4-series white LEDs (12–13V total VF) from a 3.6V Li-ion battery in a QVGA LCD panel. IC Role / Device Role / Timing Role: Regulated current source with auto-mode switching ensures stable brightness across battery discharge (3.6V → 2.8V) without flicker or dropout. Use Value: Maintains ±5% LED current accuracy and <15mVpp output ripple, eliminating visible PWM-like artifacts in static display content. |
Use Scenario: Powering front-panel status LEDs and keypad backlight in GSM handset with tight space constraints. IC Role / Device Role / Timing Role: Compact µMAX-based charge pump replaces discrete boost + current regulator, reducing BOM count by 7 components. Use Value: 10-pin footprint (3.0×3.0mm) saves >25mm² PCB area versus inductor-based alternatives; supports rapid dimming via SHDN toggling. |
| Digital Still Camera LCD | MP3 Player OLED Interface |
|
Use Scenario: Boosting 3.3V system rail to drive 3-white-LED backlight in 2.5-inch camera preview screen. IC Role / Device Role / Timing Role: 750kHz fixed-frequency operation avoids audible noise coupling into audio circuits during video capture. Use Value: Input ripple <5mVpp (with 10µF CIN) prevents interference with image sensor analog front-end and ADC references. |
Use Scenario: Supplying regulated current to monochrome OLED display requiring 10–20mA per segment in portable audio player. IC Role / Device Role / Timing Role: SET-programmable current enables precise luminance matching across OLED subpixels without external DAC. Use Value: 0.2V SET threshold allows use of 1% tolerance resistors to achieve <±1.5% current variation - critical for uniform grayscale rendering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED charge-pump driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1912EUB+ | Single-mode 1.5x only; no 2x fallback; identical pinout, SET threshold, and package. | Lacks low-VIN regulation capability; unsuitable when input may dip below 3.0V under load. | Select MAX1912EUB+ only if system VIN stays ≥3.2V; otherwise MAX1910EUB+TG05 ensures robustness across full battery range. |
| TPS60230RGTR | Texas Instruments 1.5x/2x charge pump; 400mA max output; 1.2MHz switching; different pinout and SET interface. | Higher current capacity but larger 16-pin QFN package; requires redesign of layout and feedback network. | Choose TPS60230RGTR only when >120mA output or higher efficiency at 1.2MHz is required; not drop-in compatible. |
Compared with MAX1912EUB+, the MAX1910EUB+TG05 adds essential 2x mode for reliable operation down to 2.7V input, while compared with TPS60230RGTR it offers proven µMAX footprint compatibility and lower EMI due to 750kHz operation - making it optimal for space-constrained, noise-sensitive portable designs.
Availability
MAX1910EUB+TG05 is available at Aetrix Electronics and suitable for white LED backlighting, cellular phone display power, and digital still camera LCD applications requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.
Supply support for MAX1910EUB+TG05 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
Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer markets.
The MAX1910EUB+TG05 belongs to Maxim's white LED charge-pump driver product line, designed specifically for compact, inductorless backlight solutions in battery-powered portable electronics with stringent size and EMI constraints.
FAQ
What is the exact function of the SET pin on the MAX1910EUB+TG05?
The SET pin on the MAX1910EUB+TG05 serves as the precision regulation feedback node with a nominal 0.2V threshold. When connected to GND via a resistor (RSET), it sets LED current as ILED = 0.2V / RSET. Alternatively, a resistor divider from OUT to GND configures it for voltage regulation. Its 100nA input current ensures minimal error contribution from bias current, preserving accuracy across temperature and supply variations in the MAX1910EUB+TG05.
Does the MAX1910EUB+TG05 require external inductors?
No, the MAX1910EUB+TG05 is a switched-capacitor (charge-pump) DC-DC converter and requires no inductors. It uses four external ceramic capacitors - two 0.47µF transfer caps (C1, C2) and 2.2µF input/output caps - to generate regulated output. This eliminates magnetic components, reduces EMI, and enables ultra-low-profile designs where board height is constrained, a core design objective of the MAX1910EUB+TG05.
How does the MAX1910EUB+TG05 switch between 1.5x and 2x modes?
The MAX1910EUB+TG05 automatically transitions between 1.5x and 2x modes based on input-to-output voltage ratio. When VIN drops below ~75% of VOUT for >32 clock cycles under load, it enters 2x mode (C2 inactive); it exits 2x mode when VIN rises sufficiently. This seamless transition maintains regulation across the full 2.7V–5.3V input range - a defining behavior of the MAX1910EUB+TG05 not present in the MAX1912EUB+.
What is the shutdown behavior of the MAX1910EUB+TG05?
When SHDN is driven low (<0.4V), the MAX1910EUB+TG05 disables all internal switching, disconnects the load from the input, places OUT in high-impedance state, and reduces supply current to ≤1µA. This ensures near-zero battery drain in standby. Normal operation resumes when SHDN is pulled high (>1.6V) or tied to VIN - a feature critical for power-gated subsystems in the MAX1910EUB+TG05's target applications.
Can the MAX1910EUB+TG05 drive more than four white LEDs?
The MAX1910EUB+TG05 is rated for up to 120mA output current and supports series configurations of white LEDs with total forward voltage ≤5V. While four typical 3.2V LEDs (12.8V) exceed its 5V limit, it can drive them only when used in parallel or with ballast resistors - as shown in Figures 2–5 of the datasheet. Direct series driving beyond 5V violates absolute maximum ratings and is not supported by the MAX1910EUB+TG05.
MAX1910EUB+TG05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
MAX1910EUB+TG05 FAQ
1.How can I place an order for MAX1910EUB+TG05 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1910EUB+TG05 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 MAX1910EUB+TG05 reliable?
The price and inventory of MAX1910EUB+TG05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1910EUB+TG05 is usually 5 days.
3.What payment methods are accepted for MAX1910EUB+TG05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1910EUB+TG05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1910EUB+TG05?
MAX1910EUB+TG05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1910EUB+TG05 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 MAX1910EUB+TG05?
For technical support, including MAX1910EUB+TG05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1910EUB+TG05 requirements.
6.How does Aetrix verify that MAX1910EUB+TG05 is sourced from the original manufacturer or authorized distributors?
All MAX1910EUB+TG05 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 MAX1910EUB+TG05 meets industry standards.
7.What is the process for return or replacement of MAX1910EUB+TG05?
All MAX1910EUB+TG05 units undergo pre-shipment inspection (PSI). If there is an issue with MAX1910EUB+TG05, 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 MAX1910EUB+TG05 part is unused and in its original packaging.
Return procedure for MAX1910EUB+TG05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1910EUB+TG05 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…
