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Diodes Incorporated AP22919QDW-7
- Part No.:
- AP22919QDW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
AP22919QDW-7.pdf
- Description:
- LINEAR IC
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
AP22919QDW-7 from Diodes Incorporated is a single-channel automotive-grade load switch featuring a p-channel MOSFET with 90mΩ typical RON at 5V, 1.5A continuous current capability, and integrated short-circuit protection (3A limit), thermal shutdown, and adjustable quick output discharge. It operates across 1.6V–5.5V input range and is used in power rail control for infotainment head units and ADAS ECUs.
For engineers reviewing the AP22919QDW-7 datasheet, AP22919QDW-7 pinout, AP22919QDW-7 application, or AP22919QDW-7 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (-40°C to +125°C), Smart Pulldown ON-pin interface, slew-rate-controlled turn-on (2.3ms at 5V), and configurable QOD discharge path - all critical for automotive power sequencing and fault resilience.
Technical Context
The AP22919QDW-7 integrates a controlled-slew p-channel MOSFET gate driver with internal thermal shutdown (180°C threshold, 45°C hysteresis) and output short-circuit detection based on VIN–VOUT differential (0.36V typ VSC). Its Smart Pulldown circuit (530kΩ typ RPD) prevents floating ON-pin behavior during system power-up sequencing.
Short-circuit response is hardware-autonomous: it limits output current to 3A (typ) within 2µs while maintaining regulation until thermal shutdown activates; recovery occurs only after junction temperature drops below threshold minus hysteresis. The QOD pin supports three configurations - internal 10Ω discharge, external resistor augmentation, or disable-by-float - enabling precise control of VOUT fall time via RDIS||RL × COUT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.6V to 5.5V - supports wide automotive rail voltages including 3.3V and 5V logic-supplied systems. |
| Continuous Output Current | 1.5A - enables direct powering of moderate-power loads like display backlight drivers or sensor modules. |
| RON (Typ) | 90mΩ at VIN = 5V - yields <100mV drop at 1.1A, minimizing conduction loss and self-heating. |
| Short-Circuit Current Limit | 3A typ - provides robust fault containment without external current-sense circuitry. |
| Turn-On Time (tON) | 2.3ms at 5V - limits inrush current into large capacitive loads (e.g., 100µF display rails). |
| Quiescent Current | 7µA typ - ensures negligible standby power draw in always-on vehicle domains. |
| Thermal Shutdown Threshold | 180°C - protects silicon integrity under sustained overload or poor PCB thermal design. |
Pinout & Package
SOT363 (Standard) package: 6-pin, 2.0mm × 2.225mm footprint, 0.65mm pitch, matte tin-plated leads, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Power Switch Input | Connects to upstream supply rail; requires local 1µF bypass capacitor to GND for stability. |
| GND (Pin 2) | Ground Reference | Primary return path for switch current and control logic; must be low-impedance connection to system ground plane. |
| ON (Pin 3) | Active-HIGH Enable Input | Accepts TTL/CMOS logic; Smart Pulldown (530kΩ) prevents floating; max 100nA leakage when asserted high. |
| NC (Pin 4) | No Connection | Internally unconnected; must remain unconnected and unbonded on PCB layout. |
| QOD (Pin 5) | Quick Output Discharge Control | Configurable discharge path: internal 10Ω, external RQOD, or float-disable; sets VOUT fall time with COUT. |
| OUT (Pin 6) | Power Switch Output | Delivers switched voltage to load; requires local 0.1µF–10µF bypass capacitor depending on QOD configuration. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for -40°C to +125°C ambient operation in automotive environments per IATF 16949 manufacturing. |
| Adjustable output discharge | QOD pin allows tuning of VOUT fall time from µs to ms scale using internal 10Ω or external resistor. |
| Controlled turn-on slew rate | 2.3ms tON at 5V limits inrush into 100µF loads, eliminating need for external soft-start circuitry. |
| Self-protecting short-circuit response | Detects hard shorts (<0.36V VSC) in ≤2µs and clamps current to 3A without latch-off or external intervention. |
| Smart ON-pin pulldown | 530kΩ internal resistor holds ON low during power-up sequencing, then disconnects automatically when driven high. |
Applications
| Infotainment Head Unit Power Rail | ADAS Surround-View ECU |
|---|---|
|
Use Scenario: Powering LCD backlight and audio amplifier subsystems in vehicle infotainment units with strict inrush and fault containment requirements. IC Role / Device Role / Timing Role: Load switch controlling 5V rail delivery; provides controlled turn-on, short-circuit isolation, and fast output discharge during system sleep/wake transitions. Use Value: Eliminates need for discrete FET + protection IC + timing RC network - reduces BOM count by 4 components and PCB area by >25mm². |
Use Scenario: Managing power to camera interface processors and image signal chains in multi-camera surround-view systems. IC Role / Device Role / Timing Role: Enables synchronized power-up/down of camera modules with programmable discharge timing to prevent bus contention during reset. Use Value: QOD pin configures 0.4ms VOUT fall time (with 10µF COUT), ensuring clean power-down before next boot cycle begins. |
| Automotive Cluster Display | Body Control Module Gateway |
|
Use Scenario: Supplying regulated 3.3V to TFT display controllers and touch controllers in digital instrument clusters. IC Role / Device Role / Timing Role: High-side switch with thermal and short-circuit protection; Smart Pulldown ensures reliable enable during cold-cranking (low-VIN) conditions. Use Value: Maintains functional safety compliance (ISO 26262 ASIL-B support) through autonomous fault handling without MCU intervention. |
Use Scenario: Isolating CAN transceiver and LIN interface power domains in body control modules to reduce quiescent current in sleep mode. IC Role / Device Role / Timing Role: Low-leakage (45nA shutdown current) switch enabling deep-sleep states while retaining fast wake-up capability. Use Value: Reduces module standby power by 85% vs. discrete MOSFET solutions, extending battery life in parked vehicle scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS22919DCKR | Lower RON (42mΩ @ 5V), but no QOD pin and no AEC-Q100 qualification. | Targeted at industrial/commercial PCBs where automotive reliability and discharge control are not required. | Select when lowest conduction loss is prioritized over automotive qualification and output discharge flexibility. |
| RT9711CGJ5 | Higher RON (150mΩ @ 5V), no thermal shutdown, and only 1A rating - lacks SCP and AEC-Q100. | Suitable for cost-sensitive consumer electronics with benign thermal environments and no fault tolerance needs. | Choose only for non-automotive, low-current applications where full automotive protection is unnecessary. |
Compared with TPS22919DCKR and RT9711CGJ5, the AP22919QDW-7 uniquely combines AEC-Q100 Grade 1, integrated short-circuit and thermal protection, and user-configurable QOD - making it the sole option for ASIL-B-compliant automotive power gating where autonomous fault response and precise discharge timing are mandatory.
Availability
AP22919QDW-7 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS electronic control units, and body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for AP22919QDW-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 semiconductor company specializing in discrete, analog, and mixed-signal devices for automotive, industrial, computing, and consumer markets.
The AP22919QDW-7 belongs to Diodes' AEC-Q100-qualified load switch product line, designed specifically for automotive power domain isolation with integrated protection, low quiescent current, and robust thermal management.
FAQ
What is the maximum pulsed current rating for AP22919QDW-7?
The AP22919QDW-7 supports a maximum pulsed switch current of 2.5A for pulses under 300µs with ≤2% duty cycle. This rating is specified in the Absolute Maximum Ratings table and applies only during transient overload events - continuous operation remains limited to 1.5A to maintain thermal safety margins within the SOT363 package's 199.7°C/W RθJA.
Can the QOD pin be left unconnected without affecting normal operation?
Yes, the QOD pin may be left floating to disable quick output discharge functionality. In this state, the output voltage decays only through the load resistance and parasitic paths, resulting in slower natural discharge. This configuration is valid and documented in the Pin Descriptions section - however, it forfeits controlled fall-time behavior needed for synchronized power sequencing in automotive applications.
Does AP22919QDW-7 require an external pull-up resistor on the ON pin?
No external pull-up is required. The device features an integrated Smart Pulldown (530kΩ typ) that actively holds the ON pin low during power-up until system sequencing completes. Once the ON pin is driven above VIH (≥1V), the pulldown disconnects automatically, eliminating static current loss - a key differentiator from standard load switches requiring external biasing.
How does short-circuit protection behave during hot short events?
During a hot short (output shorted while switch is ON), the AP22919QDW-7 detects the VIN–VOUT differential exceeding 0.36V within 2µs and immediately limits output current to 3A. If thermal shutdown activates (at 180°C), the device turns off and remains latched off until junction temperature falls by ≥45°C, then auto-recovers - no external reset or MCU intervention is needed.
AP22919QDW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 1.6V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1.5A
- Rds On (Typ):
- 90mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Slew Rate Controlled
- Fault Protection:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
AP22919QDW-7 FAQ
1.How can I place an order for AP22919QDW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP22919QDW-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 AP22919QDW-7 reliable?
The price and inventory of AP22919QDW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP22919QDW-7 is usually 5 days.
3.What payment methods are accepted for AP22919QDW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP22919QDW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP22919QDW-7?
AP22919QDW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP22919QDW-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 AP22919QDW-7?
For technical support, including AP22919QDW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP22919QDW-7 requirements.
6.How does Aetrix verify that AP22919QDW-7 is sourced from the original manufacturer or authorized distributors?
All AP22919QDW-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 AP22919QDW-7 meets industry standards.
7.What is the process for return or replacement of AP22919QDW-7?
All AP22919QDW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP22919QDW-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 AP22919QDW-7 part is unused and in its original packaging.
Return procedure for AP22919QDW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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