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Texas Instruments TPIC2603DWRG4
- Part No.:
- TPIC2603DWRG4
- Manufacturer:
- Texas Instruments
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
TPIC2603DWRG4.pdf
- Description:
- IC PWR DRIVER 1:6 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:655
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Product details
Overview
TPIC2603DWRG4 from Texas Instruments is a monolithic low-side power DMOS driver IC with serial SPI-compatible interface, six 350-mA continuous-current outputs, internal 60-V inductive clamp, and comprehensive diagnostics including ON-state shorted-load/short-to-battery detection, OFF-state open-load sensing, over-temperature flag (170°C trip), and over-battery-voltage lockout (35 V threshold). It drives automotive relays, solenoids, and lamps in engine control units and body electronics.
For engineers reviewing the TPIC2603DWRG4 datasheet, TPIC2603DWRG4 pinout, TPIC2603DWRG4 application, or TPIC2603DWRG4 equivalent, key selection considerations include its 24-pin SOIC-DW package, 5-V logic supply compatibility, fault-reporting serial output (SDO), PWM current-limiting behavior under overload, and −40°C to 125°C case temperature rating for under-hood deployment.
Technical Context
The TPIC2603DWRG4 implements a 6-bit serial shift register with MSB-first SPI protocol (8- or 16-bit frames), where the last six bits directly control drain outputs. Fault status-including per-channel short/open-load flags and global over-temperature-is reported via exclusive-OR encoding on SDO during readback, synchronized to SCLK rising edges while CS is low.
Each of the six DMOS outputs features independent analog current limiting (typ. 1.5 A sense threshold), automatic transition to low-duty-cycle PWM mode upon sustained over-current, and dedicated 40-µA open-load test current activated ~70 µs after turn-off. Protection functions are fully asynchronous and latched only on CS falling edge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output count | Six independent low-side DMOS switches with individual fault reporting |
| Continuous current per channel | 350 mA at TC = 25°C; derates to 146 mA at TC = 125°C (DW package) |
| Drain-source breakdown voltage | 68 V - supports 24-V automotive systems with margin for load-dump transients |
| Fault detection thresholds | Shorted-load: 0.8–3 A; Open-load: 0.3–0.7 × VCC; Over-temp: 170°C ±15°C |
| Serial interface timing | Max SCLK frequency 4 MHz; tpd1 < 300 ns (CS↓ to SDO valid); 8-/16-bit frame support |
| Operating temperature | −40°C to +125°C case temperature - qualified for automotive under-hood use |
| Vbat operating range | 5.5 V to 25 V normal operation; over-voltage shutdown at 35 V (hysteresis 0.4–2 V) |
Pinout & Package
TPIC2603DWRG4 is housed in a 24-pin SOIC (DW) package with 1.27-mm pitch, JEDEC MS-013 compliant, RoHS-compliant NiPdAu lead finish, and MSL Level-1 rating (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 10) | Active-low chip select | Enables serial data input and fault readback; internal pullup ensures default high-impedance SDO state |
| SDI (Pin 4) | Serial data input | Accepts 8- or 16-bit frames; internal pulldown prevents floating state during reset |
| SCLK (Pin 3) | Serial clock input | Rising-edge-triggered shift register clock; max 4 MHz operation |
| SDO (Pin 9) | Serial data output | 3-state fault report output; bit 0–5 = per-channel fault, bit 6 = over-temperature flag |
| DRAIN0–DRAIN5 (Pins 1, 12, 10, 9, 2, 19) | Low-side power switch outputs | Each integrates 60-V clamp diode and independent ON/OFF fault sensing circuitry |
| Vbat (Pin 24) | Battery voltage monitor | Direct connection to vehicle battery rail; enables over-voltage lockout at 35 V |
| VCC (Pin 13) | Logic supply input | 5-V ±10% supply for internal registers and interface; turn-on threshold 4.5 V |
| GND (Pins 5, 6, 15, 16, 7, 8, 17, 18, 19, 20) | Power ground | Multiple pins reduce IR drop and improve thermal dissipation in high-current switching |
Key Features
| Feature | Design Value |
|---|---|
| Integrated diagnostic feedback | Fault status returned via SDO without external ADC or comparator - reduces BOM count by ≥3 components |
| Self-protecting current limiting | Transitions to low-duty-cycle PWM on sustained over-current - maintains partial functionality while preventing thermal runaway |
| Open-load detection during OFF state | 40-µA test current injected post-turnoff enables reliable lamp/bulb open-circuit detection in lighting modules |
| Inductive transient suppression | Internal 60-V drain-gate clamp eliminates need for external flyback diodes across relay coils |
| Automotive-grade thermal robustness | Operates up to 125°C case temperature with validated fault reporting - meets AEC-Q100 Class 1 requirements |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Driving fuel injectors, ignition coils, and purge valves in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Low-side driver with real-time short-circuit detection and PWM fallback to prevent coil burnout during fault conditions. Use Value: Enables fail-safe operation without disabling entire subsystem - maintains engine runnability during single-output failure. |
Use Scenario: Controlling door locks, window lift motors, and interior lighting loads in passenger compartments. IC Role / Device Role / Timing Role: Serial-controlled power switch with open-load detection to verify bulb integrity and detect broken filaments. Use Value: Eliminates need for separate bulb-test circuits - reduces wiring harness complexity and ECU pin count. |
| Transmission Control Unit (TCU) | Commercial Vehicle Telematics |
Use Scenario: Switching solenoid valves in automatic transmission hydraulic control units. IC Role / Device Role / Timing Role: High-reliability low-side driver with over-temperature monitoring to prevent valve stiction due to localized heating. Use Value: Prevents false torque converter clutch engagement by detecting thermal faults before mechanical degradation occurs. |
Use Scenario: Managing auxiliary power distribution (e.g., GPS antenna, CAN gateway, camera power) in fleet telematics gateways. IC Role / Device Role / Timing Role: Fault-aware power switch enabling remote diagnostics via serial interface - reports open/short faults over CAN bus. Use Value: Reduces field service visits by enabling predictive maintenance alerts based on accumulated fault history. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-side driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPIC2603DWR | Identical electrical specs and pinout; differs only in packaging - tube vs. tape-and-reel (2000 pcs/reel) | No functional difference; selected when small-batch prototyping or manual assembly required | Choose TPIC2603DWRG4 for automated SMT production; TPIC2603DWR for bench evaluation or low-volume builds |
| TPIC2810DWR | 8-channel version with identical architecture, 350-mA rating, and same diagnostic features; adds two extra outputs and updated fault register mapping | Used where higher channel density is needed without increasing PCB area - shares same DW package footprint | Prefer TPIC2810DWR if system requires >6 channels; TPIC2603DWRG4 remains optimal for 6-channel cost-sensitive designs |
Compared with TPIC2603DWR, TPIC2603DWRG4 offers identical performance in tape-and-reel format optimized for high-volume SMT lines; compared with TPIC2810DWR, it provides lower channel count at reduced gate count and BOM cost while retaining full diagnostic fidelity.
Availability
TPIC2603DWRG4 is available at Aetrix Electronics and suitable for automotive engine control, body electronics, and commercial vehicle telematics requiring stable component supply across extended product lifecycles.
Supply support for TPIC2603DWRG4 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 electronics, with decades of experience in high-reliability power management solutions.
The TPIC2603DWRG4 belongs to TI's automotive-grade serial-input power switch family, designed specifically for fault-tolerant control of inductive and resistive loads in harsh environments such as engine bays and chassis modules.
FAQ
What is the maximum continuous current per channel for TPIC2603DWRG4?
The TPIC2603DWRG4 delivers 350 mA continuous current per channel at TC = 25°C. Derating applies at elevated temperatures: output capability drops to approximately 146 mA at TC = 125°C in the DW package, as defined by its 14 mW/°C thermal derating factor and 350 mW total power limit at that temperature.
Does TPIC2603DWRG4 support both 8-bit and 16-bit serial communication frames?
Yes, TPIC2603DWRG4 supports configurable 8-bit or 16-bit serial frames. In 8-bit mode, the first six bits contain output control data and the remaining two bits are unused; in 16-bit mode, the first ten bits are unused and the final six bits control outputs. Fault data always occupies the first eight bits of serial output regardless of frame length.
How does TPIC2603DWRG4 detect open-load conditions?
The TPIC2603DWRG4 detects open-load conditions by injecting a 40-µA test current onto each DRAIN terminal approximately 70 µs after the output turns OFF. If the load is disconnected, this current pulls the drain voltage below the open-load detection threshold (0.3–0.7 × VCC), triggering a fault flag reported via SDO during the next serial read cycle.
What protection features are included in TPIC2603DWRG4?
TPIC2603DWRG4 integrates six independent protection mechanisms: (1) ON-state shorted-load/short-to-battery detection, (2) OFF-state open-load sensing, (3) over-battery-voltage lockout (35 V), (4) over-temperature flag (170°C), (5) internal 60-V drain-gate clamp for inductive kickback, and (6) PWM fallback mode during sustained over-current.
Is TPIC2603DWRG4 pin-compatible with other devices in the TPIC26xx family?
TPIC2603DWRG4 is pin-compatible with TPIC2603DW, TPIC2603DWG4, and TPIC2603DWR - all share identical 24-pin SOIC-DW footprint and terminal functions. However, it is not pin-compatible with TPIC2810DWR (8-channel variant), which uses the same package but assigns different signals to Pins 11 and 21.
TPIC2603DWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Switch Type:
- General Purpose
- Number of Outputs:
- 6
- Ratio - Input:Output:
- 1:6
- Output Configuration:
- Low Side
- Output Type:
- -
- Interface:
- Serial
- Voltage - Load:
- 5.5V ~ 25V
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Current - Output (Max):
- 350mA
- Rds On (Typ):
- 1.7Ohm
- Input Type:
- -
- Features:
- -
- Fault Protection:
- Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SOIC
TPIC2603DWRG4 FAQ
1.How can I place an order for TPIC2603DWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPIC2603DWRG4 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 TPIC2603DWRG4 reliable?
The price and inventory of TPIC2603DWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPIC2603DWRG4 is usually 5 days.
3.What payment methods are accepted for TPIC2603DWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPIC2603DWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPIC2603DWRG4?
TPIC2603DWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPIC2603DWRG4 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 TPIC2603DWRG4?
For technical support, including TPIC2603DWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPIC2603DWRG4 requirements.
6.How does Aetrix verify that TPIC2603DWRG4 is sourced from the original manufacturer or authorized distributors?
All TPIC2603DWRG4 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 TPIC2603DWRG4 meets industry standards.
7.What is the process for return or replacement of TPIC2603DWRG4?
All TPIC2603DWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPIC2603DWRG4, 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 TPIC2603DWRG4 part is unused and in its original packaging.
Return procedure for TPIC2603DWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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