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Diodes Incorporated DDTA144ELP-7
- Part No.:
- DDTA144ELP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- 3-UFDFN
- Datasheet:
-
DDTA144ELP-7.pdf
- Description:
- TRANS PREBIAS PNP 50V 0.2A 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:553
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Product details
Overview
DDTA144ELP from Diodes Incorporated is a PNP pre-biased small-signal transistor in DFN1006 package with integrated 47 kΩ base resistors (R1 = R2), rated for -50 V VCEO, -200 mA IC(MAX), and 250 mW power dissipation, commonly used in logic-level interface and load switching in space-constrained consumer and automotive control circuits.
For engineers reviewing the DDTA144ELP datasheet, DDTA144ELP pinout, DDTA144ELP application, or DDTA144ELP equivalent, key selection criteria include verified PNP pre-biased topology, guaranteed hFE ≥ 90 at -2.5 mA, -150 mV VCE(SAT) at -10 mA, AEC-Q101 qualification, and DFN1006 thermal performance under 2 mW/°C derating.
Technical Context
This device integrates matched 47 kΩ base-emitter and base-collector resistors to eliminate external bias components, enabling direct TTL/CMOS logic-level drive. Its epitaxial planar construction ensures stable gain across temperature (-55°C to +150°C) and low leakage (ICES ≤ -100 nA).
The X1-DFN1006-3 package features an exposed collector pad for thermal conduction, achieving 500°C/W RθJA on standard FR4, and NiPdAu terminals compatible with lead-free reflow. It operates as a single-stage inverting switch with VI(on) ≤ -3 V and VI(off) ≥ -300 mV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -50 V - Maximum collector-emitter voltage before breakdown; supports rail-to-rail switching in -5 V to -24 V systems. |
| IC(MAX) | -200 mA - Continuous collector current limit; suitable for driving LEDs, relays, or small solenoids. |
| hFE | 90–250 - DC current gain range at VCE = -5 V; enables predictable saturation with minimal base drive. |
| VCE(SAT) | -150 mV @ IC = -10 mA - Low saturation voltage reduces power loss and self-heating in high-duty-cycle switching. |
| R1 / R2 | 47 kΩ / 47 kΩ - Matched internal bias resistors eliminate discrete resistor placement and improve layout density. |
| fT | 250 MHz - Transition frequency confirms suitability for signal switching up to ~10 MHz with clean edges. |
| PD | 250 mW - Power rating at 25°C ambient; derates linearly at 2 mW/°C above 25°C for thermal design margin. |
Pinout & Package
Package: X1-DFN1006-3 - ultra-small 1.0 × 0.6 mm, 3-terminal leadless plastic package with exposed collector pad for thermal management and NiPdAu-plated terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Emitter terminal; connects to higher potential (e.g., VCC) in PNP configuration; referenced in VI(off)/VI(on) test conditions. |
| 2 (Base) | B | Base terminal; internally connected to both 47 kΩ resistors; accepts logic-level input without external pull-up/down. |
| 3 (Collector) | C | Collector terminal; exposed pad serves as primary thermal path; connects to load return or ground in common-emitter switch. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including body control modules and lighting drivers per stress test requirements. |
| Matched R1/R2 = 47 kΩ | Enables consistent turn-on/off thresholds and eliminates component count and layout variance in logic interface designs. |
| Green, halogen-free packaging | Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb; compliant with EU RoHS 2 and J-STD-020 moisture sensitivity Level 1. |
| Ultra-compact DFN1006 | Reduces PCB area by >70% vs. SOT-23; supports high-density routing and automated placement on fine-pitch boards. |
| Low VCE(SAT) | -150 mV at IC = -10 mA ensures <1.5 mW conduction loss, critical for battery-powered and thermally constrained systems. |
Applications
| Automotive LED Tail Light Control | USB Port Over-Current Protection Switch |
|---|---|
|
Use Scenario: Driving individual red/amber LED strings in rear combination lamps with PWM dimming and fault detection. IC Role / Device Role: PNP pre-biased switch controlling cathode-side current path; interfaces directly with MCU GPIO. Use Value: Eliminates two external resistors per channel, reduces BOM cost by $0.012/unit, and maintains <200 µA standby leakage over temperature. |
Use Scenario: Enabling/disabling VBUS path in USB 2.0 downstream ports based on enumeration status or over-current events. IC Role / Device Role: High-side load switch with logic-compatible enable input; placed between USB controller and connector. Use Value: Achieves <1 µs turn-off time and -150 mV drop at 100 mA, minimizing voltage sag during hot-plug events. |
| Smartphone Camera Flash Driver | Industrial Sensor Signal Conditioning Interface |
|
Use Scenario: Pulse-driving white LED flash arrays with precise current control and thermal foldback. IC Role / Device Role: Fast-switching PNP transistor in constant-current sink configuration with integrated bias network. Use Value: Supports 200 ns rise/fall times and maintains hFE > 120 at -5 mA, ensuring accurate pulse-width modulation fidelity. |
Use Scenario: Level-shifting and isolating analog sensor outputs (e.g., NTC thermistors, Hall sensors) to microcontroller ADC inputs. IC Role / Device Role: Inverting buffer stage converting negative-going sensor signals to positive logic levels for MCU sampling. Use Value: Guaranteed VI(off) ≤ -300 mV and VI(on) ≥ -3 V ensure noise-immune switching across -40°C to +125°C industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP pre-biased transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DDTA144ECA-7 | Same electrical specs but in SOT-23 package (3.0 × 1.4 mm); 3× larger footprint, higher RθJA (400°C/W). | Better manual handling and thermal margin in prototyping; unsuitable for <1.0 mm board spacing. | Select when board assembly lacks DFN-capable reflow profile or requires visual inspection of solder joints. |
| NSVD4156PT3G | PNP pre-biased with R1=100 kΩ, R2=100 kΩ; lower hFE min (60); same DFN1006 package and AEC-Q101 rating. | Higher input impedance suits high-Z MCU outputs; reduced gain requires higher base drive for same IC. | Select when interfacing with low-drive-strength controllers or where higher input resistance improves noise immunity. |
Compared with DDTA144ELP, DDTA144ECA-7 trades miniaturization for assembly flexibility, while NSVD4156PT3G offers higher input impedance at the cost of gain margin-both retain AEC-Q101 compliance but differ in thermal response and drive sensitivity.
Availability
DDTA144ELP is available at Aetrix Electronics and suitable for automotive lighting control, USB power switching, smartphone flash drivers, and industrial sensor interfaces requiring stable component supply and AEC-Q101 reliability.
Supply support for DDTA144ELP 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 high-reliability, energy-efficient components for automotive, industrial, and consumer markets.
The DDTA series targets space-constrained logic interface and load switching applications, with pre-biased transistors designed to reduce bill-of-materials count and improve manufacturing yield in high-volume electronics.
FAQ
What is the maximum operating temperature for DDTA144ELP?
The DDTA144ELP is rated for junction and storage temperatures from -55°C to +150°C. Its thermal resistance (RθJA = 500°C/W) allows operation up to +125°C ambient when mounted per recommended pad layout on 1 oz copper FR4, with power derating applied above +25°C at 2 mW/°C.
Can DDTA144ELP replace a discrete PNP transistor plus two resistors?
Yes-DDTA144ELP integrates matched 47 kΩ base-emitter and base-collector resistors, eliminating two external components. It replicates the function of a BC807-25 with 47 kΩ R1/R2 bias network, delivering identical VI(on), VI(off), and hFE behavior while reducing PCB area by >60% and improving production consistency.
Is DDTA144ELP suitable for PWM-driven loads?
Yes-the device exhibits 250 MHz fT, sub-200 ns switching times, and stable VCE(SAT) down to 100 ns pulse widths. Its low stored charge and optimized doping profile support reliable 10–100 kHz PWM operation in LED drivers and motor control feedback paths without oscillation or shoot-through risk.
Does DDTA144ELP require special PCB layout considerations?
Yes-the exposed collector pad must be connected to a minimum 1.0 mm² copper pour for thermal performance. Recommended pad layout follows AP02001 guidelines: 0.40 × 0.70 mm solder mask opening, 0.25 mm stencil aperture, and thermal vias under the pad if board layer count permits. Avoid floating pads or narrow traces to maintain RθJA spec.
DDTA144ELP-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 3-UFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP - Pre-Biased
- Current - Collector (Ic) (Max):
- 200 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Resistor - Base (R1):
- 47 kOhms
- Resistor - Emitter Base (R2):
- 47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 250 @ 300mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 800mV @ 1mA, 40mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 250 MHz
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-3
DDTA144ELP-7 FAQ
1.How can I place an order for DDTA144ELP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDTA144ELP-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 DDTA144ELP-7 reliable?
The price and inventory of DDTA144ELP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDTA144ELP-7 is usually 5 days.
3.What payment methods are accepted for DDTA144ELP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDTA144ELP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDTA144ELP-7?
DDTA144ELP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDTA144ELP-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 DDTA144ELP-7?
For technical support, including DDTA144ELP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDTA144ELP-7 requirements.
6.How does Aetrix verify that DDTA144ELP-7 is sourced from the original manufacturer or authorized distributors?
All DDTA144ELP-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 DDTA144ELP-7 meets industry standards.
7.What is the process for return or replacement of DDTA144ELP-7?
All DDTA144ELP-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDTA144ELP-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 DDTA144ELP-7 part is unused and in its original packaging.
Return procedure for DDTA144ELP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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