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Diodes Incorporated AP3152FG-7
- Part No.:
- AP3152FG-7
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 12-UFDFN Exposed Pad
- Datasheet:
-
AP3152FG-7.pdf
- Description:
- IC LED DRVR RGLTR DIM 30MA 12DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,535
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Product details
Overview
AP3152FG-7 from Diodes Incorporated is a 120mA high-efficiency charge-pump white LED driver IC with 1x/1.5x/2x operating modes, 2.7V–5.5V input range, and four independent current-sink channels supporting up to 30mA per channel. It delivers up to 88% peak efficiency and integrates soft-start/soft-stop, short-circuit protection, over-voltage protection, and under-voltage lockout for mobile backlighting and flash applications.
For engineers reviewing the AP3152FG-7 datasheet, AP3152FG-7 pinout, AP3152FG-7 application, or AP3152FG-7 equivalent, key selection considerations include programmable switching frequency (0.6/1.2/1.8 MHz), 1-wire SDI interface for 16-level logarithmic dimming control, low shutdown current (<1 µA), and DFN3030-12 package thermal performance (θJA = 160 °C/W).
Technical Context
The AP3152FG-7 implements a fully integrated switched-capacitor charge-pump architecture with automatic mode selection (1x/1.5x/2x) based on input voltage and LED forward voltage requirements. Its digital control block interprets 1-wire SDI commands to configure per-channel current levels, switching frequency, spread-spectrum operation, and PWM dimming mode.
Each of the four current-sink outputs (D1–D4) supports precise ±10% current accuracy at 20mA and ≤5% matching across channels at 2–30mA loads. Protection logic includes real-time VOUT short-circuit detection, thermal shutdown at +150°C, and UVLO activation below ~2.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Current | 120mA total across 4 channels (30mA per channel maximum) |
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion and dual-cell alkaline power rails |
| Charge-Pump Modes | 1x (bypass), 1.5x (voltage boost), and 2x (doubling) - auto-selected for optimal efficiency |
| Switching Frequency | Programmable 0.6 / 1.2 / 1.8 MHz - balances EMI, capacitor size, and ripple |
| Dimming Interface | 1-wire Serial Digital Interface (SDI) with 16 logarithmic current steps - enables linear perceived brightness control |
| Shutdown Current | <1 µA - minimizes battery drain in standby mode for portable devices |
| Efficiency | Up to 88% - achieved via low-RDS(on) internal switches and optimized charge-transfer timing |
Pinout & Package
AP3152FG-7 is housed in a thermally enhanced DFN3030-12 package (3.0 mm × 3.0 mm × 0.75 mm) with exposed thermal pad connected to GND. The 12-pin layout supports compact PCB design and efficient heat dissipation in space-constrained handheld applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D4 | Current Sink Input #4 | Drives fourth LED string; connect to VOUT if unused to disable sink |
| SDI | 1-Wire Serial Digital Interface / PWM Input | Accepts command pulses (1–63 falling edges) or PWM signal for dimming control |
| C1P / C1N | Flying Capacitor Terminals (Capacitor 1) | Form first charge-pump stage; require 1µF ceramic capacitor between pins |
| VOUT | Charge-Pump Output Voltage Node | Supplies regulated boosted voltage to all LED sinks; bypassed with 1µF to GND |
| C2P / C2N | Flying Capacitor Terminals (Capacitor 2) | Form second charge-pump stage; require 1µF ceramic capacitor between pins |
| VIN | Main Power Input | Accepts 2.7–5.5V supply; bypassed with 1µF ceramic capacitor to GND |
| GND | Ground Reference | System ground return; exposed pad must be soldered to PCB ground plane |
| D1–D3 | Current Sink Inputs #1–#3 | Drive first three LED strings; each configurable independently via SDI |
Key Features
| Feature | Design Value |
|---|---|
| Auto-Select Charge-Pump Mode | Intelligently chooses 1x/1.5x/2x based on VIN and LED VF to maximize efficiency without external control |
| Logarithmic 16-Level Dimming | Current steps spaced ~1dB apart - yields linear human-perceived brightness change across full range |
| Up Spread Spectrum Control | ±10% frequency dithering around nominal clock - reduces EMI peak amplitude by spreading energy across bandwidth |
| Integrated Protection Suite | Short-circuit, over-voltage, under-voltage lockout, and thermal shutdown - eliminates need for external fault management circuitry |
| Low-Power Shutdown | <1 µA quiescent current - extends battery life in always-on portable devices during display-off states |
Applications
| Mobile Phone Backlight | Camera Flash Lighting |
|---|---|
|
Use Scenario: Driving 4 white LEDs behind an AMOLED or TFT-LCD display in smartphones with single-cell Li-ion battery (3.0–4.2V). IC Role / Device Role / Timing Role: Constant-current charge-pump LED driver with auto-mode selection and SDI-based brightness control. Use Value: Maintains consistent LED brightness across battery discharge curve while minimizing power loss and EMI emissions. |
Use Scenario: Providing high-current pulsed illumination for smartphone camera modules requiring brief 120mA bursts. IC Role / Device Role / Timing Role: Four-channel current sink enabling synchronized or staggered flash timing via SDI command sequencing. Use Value: Delivers full 30mA per channel in 2x mode at 2.7V input - enables flash operation even at low battery voltage. |
| PDA Display Backlight | Portable LCD Module |
|
Use Scenario: Powering transmissive LCD backlights in legacy PDAs where low ambient power consumption is critical. IC Role / Device Role / Timing Role: Low-current mode (2mA max scale) LED driver with 16-step dimming for ultra-low-power UI illumination. Use Value: Reduces display subsystem current draw to <100 µA in standby - extends PDA runtime between charges. |
Use Scenario: Backlighting small industrial or medical LCD panels with fixed 3.3V or 5V supply and tight board area constraints. IC Role / Device Role / Timing Role: Compact DFN3030-12 LED driver with minimal external components (4×1µF caps only). Use Value: Eliminates need for inductors or high-voltage DC-DC converters - simplifies layout and lowers BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP3151FG-7 | Single-channel version; same 120mA capability but only one current sink output | Limited to single-string LED arrays; lacks multi-channel dimming flexibility | Select when driving only one LED string and board space is extremely constrained |
| AL8807A-7 | Inductor-based buck-boost LED driver; higher peak efficiency (>92%) but requires external inductor | Better suited for high-brightness, high-current (>150mA) flash applications with wider input range (4.5–36V) | Prefer for automotive or industrial lighting where inductor tolerance is acceptable and higher voltage operation is needed |
Compared with AP3151FG-7, AP3152FG-7 provides true 4-channel independent control essential for segmented backlighting; versus AL8807A-7, it avoids inductor-related EMI and size penalties but trades off absolute efficiency and input voltage headroom.
Availability
AP3152FG-7 is available at Aetrix Electronics and suitable for mobile phone backlighting, camera flash modules, PDA displays, and portable LCD modules requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for AP3152FG-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for consumer, industrial, and computing markets.
The AP3152 belongs to Diodes' white LED driver product line, engineered specifically for space- and power-constrained portable electronics requiring high-efficiency, low-EMI, and flexible digital dimming control.
FAQ
What is the minimum input voltage required for reliable 2x charge-pump operation?
The AP3152FG-7 enters 2x mode automatically when VIN falls below ~3.0V with typical white LED VF (~3.2V). Absolute minimum VIN for stable 2x operation is 2.7V per datasheet specifications, verified across -40°C to +85°C ambient and 20mA load conditions. Below 2.7V, UVLO disables the device.
Can the SDI pin be used simultaneously for configuration and PWM dimming?
No - SDI operates in mutually exclusive modes. Configuration (e.g., setting current scale or frequency) requires SDI mode (command sequence 1–62); PWM dimming requires explicit entry into PWM mode via command 63. Once in PWM mode, only duty-cycle control is active; re-entering SDI mode requires sending command 63 again.
How does the AP3152FG-7 handle mismatched LED forward voltages across channels?
Each current sink (D1–D4) regulates its output independently using internal reference and feedback. Channel-to-channel current matching remains within ±5% even with ±0.3V VF mismatch, as confirmed in datasheet Figure 6 (Current Matching vs. Temperature) and functional description section on sink accuracy.
Is the DFN3030-12 package compatible with standard reflow profiles for lead-free assembly?
Yes - the AP3152FG-7 uses lead-free finish and green molding compound compliant with JEDEC J-STD-020D. Its DFN3030-12 package supports standard Pb-free reflow profiles with peak temperature up to 260°C, and the exposed thermal pad requires full solder coverage to PCB ground for thermal and electrical integrity.
AP3152FG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 12-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- DC DC Regulator
- Topology:
- Switched Capacitor (Charge Pump)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 4
- Voltage - Supply (Min):
- 2.7V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- -
- Current - Output / Channel:
- 30mA
- Frequency:
- 1.2MHz
- Dimming:
- PWM
- Applications:
- Backlight, Camera Flash
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN3030-12
AP3152FG-7 FAQ
1.How can I place an order for AP3152FG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3152FG-7 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 AP3152FG-7 reliable?
The price and inventory of AP3152FG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3152FG-7 is usually 5 days.
3.What payment methods are accepted for AP3152FG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3152FG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3152FG-7?
AP3152FG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3152FG-7 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 AP3152FG-7?
For technical support, including AP3152FG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3152FG-7 requirements.
6.How does Aetrix verify that AP3152FG-7 is sourced from the original manufacturer or authorized distributors?
All AP3152FG-7 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 AP3152FG-7 meets industry standards.
7.What is the process for return or replacement of AP3152FG-7?
All AP3152FG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP3152FG-7, 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 AP3152FG-7 part is unused and in its original packaging.
Return procedure for AP3152FG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP3152FG-7 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
Microchip Technology
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CL2N8-G
Microchip Technology
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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