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Texas Instruments TPS22919QDCKRQ1
- Part No.:
- TPS22919QDCKRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
TPS22919QDCKRQ1.pdf
- Description:
- IC POWER
- Quantity:
- Payment:
- Shipping:
Inventory:4,198
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Product details
Overview
TPS22919QDCKRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified single-channel load switch featuring an N-channel MOSFET, 1.6 V to 5.5 V input range, 1.5 A continuous current rating, and 89 mΩ typical RON at 5 V. It delivers controlled turn-on slew rate (3.2 mV/µs), integrated quick output discharge (24 Ω internal QOD), and self-protection against output short circuits (3 A typical limit) in infotainment power rail control.
For engineers reviewing the TPS22919QDCKRQ1 datasheet, TPS22919QDCKRQ1 pinout, TPS22919QDCKRQ1 application, or TPS22919QDCKRQ1 equivalent, key selection considerations include its SC-70 (6-pin) package footprint, Smart ON pin pull-down (530 kΩ), ultra-low shutdown current (2 nA typical), thermal shutdown (180 °C), and configurable fall time for automotive power sequencing.
Technical Context
The TPS22919QDCKRQ1 integrates a low-RON N-channel MOSFET with precision gate drive and slew-rate control circuitry to limit inrush current during power-up. Its Smart ON pin logic includes active pull-down (530 kΩ typical) below VIL and automatic disconnection above VIH, enabling direct GPIO interfacing without external biasing.
Self-protection architecture combines output short-circuit current limiting (3 A typical, 2 µs response), thermal shutdown (180 °C rising / 145 °C falling), and adjustable output discharge via QOD pin-supporting three configurations: internal 24 Ω discharge, external resistor + internal path, or disabled (floating).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.6 V to 5.5 V - supports wide automotive rail voltages including 1.8 V, 3.3 V, and 5 V logic domains. |
| Max Continuous Current | 1.5 A - enables driving moderate-power downstream modules like display drivers or sensor interfaces. |
| RON (5 V) | 89 mΩ typical - minimizes voltage drop (<89 mV at 1 A) and power loss (89 mW at 1 A) in high-current paths. |
| Shutdown Current (ISD) | 2 nA typical - ensures negligible standby leakage, critical for battery-backed automotive subsystems. |
| Output Short Limit (ISC) | 3 A typical - provides robust fault containment without external current-sense or protection ICs. |
| Turn-On Time (tON) | 1.95 ms at 5 V - programmable via input voltage and load capacitance, enabling controlled power ramp-up. |
| QOD Internal Resistance | 24 Ω typical - sets baseline discharge rate; combined with external resistor for precise tFALL tuning. |
Pinout & Package
TPS22919QDCKRQ1 is housed in a 6-pin SC-70 (DCK) package measuring 2.1 mm × 2.0 mm, qualified for –40°C to 125°C junction temperature operation and optimized for space-constrained automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: IN | Power Input | Connects to upstream supply rail (1.6–5.5 V); feeds internal MOSFET source. |
| 2: GND | Ground Reference | Primary return path for load current and internal circuitry; must be low-impedance. |
| 3: ON | Digital Control Input | Active-high enable (VIH ≥1 V); features smart pull-down (530 kΩ) when ≤VIL to prevent floating. |
| 4: NC | No Connect | Internally unconnected; must remain unpopulated and floating per datasheet. |
| 5: QOD | Quick Output Discharge Control | Configures VOUT discharge path: short to VOUT (enables 24 Ω internal RQOD), external resistor, or float (disables). |
| 6: VOUT | Switched Output | Delivers regulated power to downstream load; voltage follows IN when ON = high, discharges via QOD when OFF. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to 125°C ambient operation, meeting automotive reliability and stress-test requirements. |
| Controlled slew-rate turn-on | Adjustable tON (1.5–1.95 ms) and dV/dt (1.8–3.2 mV/µs) suppresses input rail droop and EMI during power-up. |
| Integrated Quick Output Discharge | Configurable tFALL via QOD pin: internal 24 Ω path enables fast discharge (e.g., 10 µs with 100 Ω load, 0.1 µF cap). |
| Self-protection architecture | Combines 3 A short-circuit current limit, 2 µs fault response, and thermal shutdown (180 °C) to eliminate need for external protection. |
| Ultra-low quiescent power | 8 µA typical IQ in ON state and 2 nA typical ISD in OFF state extend battery life in always-on vehicle modules. |
Applications
| Infotainment Power Rail Control | ADAS Sensor Module Sequencing |
|---|---|
|
Use Scenario: Powering LCD backlight drivers and audio amplifiers in head unit systems requiring clean, sequenced 3.3 V or 5 V rails. IC Role / Device Role / Timing Role: Load switch providing inrush-limited, short-circuit-protected power delivery with controlled tON and tFALL. Use Value: Prevents system reset due to supply sag during backlight turn-on; enables safe hot-swap of peripheral modules. |
Use Scenario: Isolating camera sensor power in surround-view ECUs where staggered power-down prevents data corruption. IC Role / Device Role / Timing Role: Configurable discharge controller using QOD pin to enforce strict VOUT fall-time margins during MCU-initiated shutdown. Use Value: Ensures camera I/O pins de-energize before host processor enters low-power mode, avoiding latch-up or bus contention. |
| Body Control Module Subsystem Enable | Cluster Display Backlight Management |
|
Use Scenario: Enabling CAN transceiver bias rails and door-lock actuator drivers only when ignition is active. IC Role / Device Role / Timing Role: High-reliability enable switch with Smart ON pin pull-down preventing false turn-on during cold cranking. Use Value: Eliminates need for external pull-down resistors and reduces BOM count while ensuring deterministic startup behavior. |
Use Scenario: Driving LED backlight strings in digital instrument clusters where dimming requires precise VOUT discharge timing. IC Role / Device Role / Timing Role: Fast-discharge load switch synchronizing backlight turn-off with PWM dimming signal edges. Use Value: Achieves flicker-free dimming by matching tFALL to PWM off-time; 24 Ω internal QOD enables sub-100 µs discharge with typical 10 µF caps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS22916QDCKRQ1 | Lower RON (60 mΩ typ @ 5 V), higher IMAX (2 A), same SC-70 package and QOD functionality. | Better suited for higher-current rails (e.g., radar module supplies) but consumes more board area due to larger thermal pad requirement. | Select when >1.5 A continuous current or <60 mΩ RON is required; verify thermal margin with RθJA = 202.5 °C/W. |
| TPS22965DSGRQ1 | Higher integration: dual-channel, 2.5 A per channel, integrated reverse-voltage protection, but larger 8-pin VSSOP package. | Replaces two single-channel switches in multi-rail systems (e.g., cluster + HUD), increasing layout complexity but reducing component count. | Choose for space-tolerant designs needing dual independent rails with shared enable logic and reverse-blocking capability. |
Compared with TPS22919QDCKRQ1, TPS22916QDCKRQ1 offers lower conduction loss at higher currents but requires tighter thermal design, while TPS22965DSGRQ1 trades compact size for dual-channel flexibility and reverse-voltage blocking-neither is pin-compatible, and both demand PCB layout revision.
Availability
TPS22919QDCKRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS ECU, and body control module applications requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TPS22919QDCKRQ1 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 automotive-grade power management solutions with over 50 years of innovation in high-reliability electronics.
The TPS22919QDCKRQ1 belongs to TI's automotive-qualified load switch product line, engineered specifically for intelligent power distribution in safety-critical vehicle subsystems requiring precise sequencing, fault resilience, and minimal footprint.
FAQ
What is the maximum input voltage rating for the TPS22919QDCKRQ1?
The TPS22919QDCKRQ1 has an absolute maximum input voltage rating of 6 V, with recommended operating range from 1.6 V to 5.5 V. Exceeding 6 V may cause permanent damage. The device is designed for automotive 12 V system-derived rails (e.g., post-LDO 3.3 V or 5 V), not direct 12 V connection.
Does the TPS22919QDCKRQ1 require external components for basic operation?
No, the TPS22919QDCKRQ1 operates autonomously with only input and output capacitors required. It integrates the MOSFET, gate driver, charge pump, Smart ON pull-down, and QOD discharge FET-eliminating external resistors, diodes, or timing capacitors needed in discrete solutions.
How does the QOD pin function in the TPS22919QDCKRQ1?
In the TPS22919QDCKRQ1, the QOD pin configures VOUT discharge behavior: tying it directly to VOUT activates the internal 24 Ω discharge path; adding an external resistor between QOD and VOUT adjusts total RDIS; leaving it floating disables discharge. This enables precise tFALL tuning for power sequencing.
What thermal protection mechanisms are built into the TPS22919QDCKRQ1?
The TPS22919QDCKRQ1 incorporates thermal shutdown with 180 °C trip (rising) and 145 °C recovery (falling) hysteresis. When junction temperature exceeds 180 °C, the switch turns off until temperature falls below 145 °C, then resumes normal operation-preventing damage during sustained overload or poor heatsinking.
Is the TPS22919QDCKRQ1 compatible with 1.8 V logic control signals?
Yes, the TPS22919QDCKRQ1 ON pin accepts 1.8 V logic: VIH threshold is 1 V minimum, and VIL is 0.35 V maximum. A 1.8 V GPIO can directly drive the ON pin without level-shifting, and the Smart Pull Down (530 kΩ) ensures reliable low-state hold during power-up sequencing.
TPS22919QDCKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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):
- 89mOhm
- 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:
- SC-70-6
TPS22919QDCKRQ1 FAQ
1.How can I place an order for TPS22919QDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS22919QDCKRQ1 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 TPS22919QDCKRQ1 reliable?
The price and inventory of TPS22919QDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS22919QDCKRQ1 is usually 5 days.
3.What payment methods are accepted for TPS22919QDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS22919QDCKRQ1 transactions.
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4.How is shipping managed for TPS22919QDCKRQ1?
TPS22919QDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS22919QDCKRQ1 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 TPS22919QDCKRQ1?
For technical support, including TPS22919QDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS22919QDCKRQ1 requirements.
6.How does Aetrix verify that TPS22919QDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS22919QDCKRQ1 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 TPS22919QDCKRQ1 meets industry standards.
7.What is the process for return or replacement of TPS22919QDCKRQ1?
All TPS22919QDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS22919QDCKRQ1, 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 TPS22919QDCKRQ1 part is unused and in its original packaging.
Return procedure for TPS22919QDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS22919QDCKRQ1 Tags
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TPS22919DCKR
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