My Inquiry
My Account
Texas Instruments TPIC46L02DBG4
- Part No.:
- TPIC46L02DBG4
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
TPIC46L02DBG4.pdf
- Description:
- IC GATE DRVR LOW-SIDE 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,098
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPIC46L02DBG4 from Texas Instruments is a 6-channel serial/parallel low-side pre-FET driver for controlling external N-channel power MOSFETs in automotive and industrial load-switching applications. It delivers gate drive voltage up to 13.5 V (VBAT = 12 V), supports independent shorted-load and off-state open-load fault detection per channel, and implements under-battery-voltage lockout (4.1–5.4 V shutdown) and over-battery-voltage lockout (32–36 V shutdown). It is used in solenoid, relay, and lamp control systems requiring real-time fault reporting and robust transient protection.
For engineers reviewing the TPIC46L02DBG4 datasheet, TPIC46L02DBG4 pinout, TPIC46L02DBG4 application, or TPIC46L02DBG4 equivalent, key selection considerations include its PWM-mode fault response (vs. latch-off in TPIC46L01/L03), dual serial/parallel interface flexibility, 55-V internal drain clamp, VCOMPEN-selectable fault reference, and DB (SOIC-28) package compatibility with board-level space constraints and thermal management requirements.
Technical Context
The TPIC46L02DBG4 integrates dual-input control logic (serial shift register + parallel direct inputs) enabling asynchronous channel enablement via IN0–IN5 or synchronous 8-bit serial command via SDI/SCLK/CS. Its fault engine performs real-time analog comparisons using either internal 1.25-V reference (VCOMPEN = GND) or external VCOMP (0.25–3 V), with deglitch timers (tSTBDG = 8 µs, tSTBFM = 60 µs) preventing false triggers during FET switching transients.
Under shorted-load fault, TPIC46L02DBG4 uniquely enters low-duty-cycle PWM mode (tw = 68 µs, tSB = 10 ms) instead of latching off - preserving system responsiveness while limiting FET power dissipation. Battery UVLO/OVLO protection operates independently of output state, disabling all gates and asserting FLT while suppressing channel-specific fault reporting until battery conditions normalize.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 6 independent low-side gate drivers with per-channel fault monitoring |
| VBAT Range | 8–24 V operating; 32–36 V overvoltage shutdown threshold protects downstream FETs |
| VCC Supply | 4.5–5.5 V logic supply; enables CMOS-compatible hysteresis on IN0–IN5 (VIH = 4.25 V min) |
| Fault Detection | Short-to-battery threshold: 1.1–1.4 V (VCOMPEN = L); open-load current source: 30–80 µA |
| Gate Drive Voltage | 7–13.5 V (VBAT-dependent); clamped to ≤55 V for inductive transient suppression |
| Response Time | tPLH = 4 µs (CS/IN → GATE); tPHL = 3.5 µs; SDO fault readout synchronized to SCLK falling edge |
| Package | DB (SOIC-28); 112°C/W θJA; rated for –40°C to +125°C case temperature |
Pinout & Package
TPIC46L02DBG4 uses the DB package: 28-pin SOIC with exposed thermal pad (not electrically connected), body size 17.9 × 7.5 mm, pitch 1.27 mm. Pin 1 is FLT (fault flag), pin 15 is GND, pin 28 is VBAT - orientation matches standard SOIC top-view marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FLT (Pin 1) | Asynchronous open-drain fault flag | Wired-OR capable; asserts low on any fault (shorted-load, open-load, OVLO, UVLO); requires external pullup |
| GATE0–GATE5 (Pins 16,18,21,22,25,27) | Low-side gate drive outputs | VBAT-referenced; drive external N-FET gates; include VGS clamp to protect FET gate oxide |
| DRAIN0–DRAIN5 (Pins 17,19,20,23,24,26) | Fault sense inputs | Monitor external FET drain for shorted-load (on-state) and open-load (off-state); require pullup if unused |
| IN0–IN5 (Pins 4–9) | Parallel control inputs | CMOS-compatible with 0.6–1.1 V hysteresis; enable real-time channel control without serial clocking |
| SDI/SDO/SCLK/CS (Pins 12,11,13,10) | Serial interface | 8-bit SPI-like protocol; CS falling edge latches fault data; SDO returns fault bits (OV, UV, FLT0–FLT5) |
| VCOMPEN/VCOMP (Pins 2,3) | Fault reference select & input | VCOMPEN = GND → internal 1.25-V reference; VCOMPEN = VCC → external 0.25–3 V reference |
Key Features
| Feature | Design Value |
|---|---|
| PWM-mode shorted-load response | TPIC46L02DBG4 transitions affected channel to 68-µs pulse width / 10-ms period instead of latching off - prevents FET thermal runaway while maintaining diagnostic visibility |
| Dual-interface control | Supports both serial (minimizes MCU I/O count) and parallel (sub-µs latency) activation - enables hybrid architectures where critical channels use INx and non-critical use serial |
| Independent per-channel fault sensing | Each DRAIN pin monitors short-to-battery (on-state) and open-load (off-state) with dedicated deglitch timers - eliminates need for external comparators or ADC sampling |
| Integrated transient protection | Internal 55-V drain clamp (VBAT + VGS clamp) suppresses inductive kickback - reduces external TVS count and PCB area in solenoid/relay drivers |
| Battery voltage supervision | UVLO (4.1–5.4 V) and OVLO (32–36 V) disable all outputs and assert FLT - prevents erratic operation during cranking or alternator surge events |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Output Stage |
|---|---|
Use Scenario: Controlling door locks, trunk releases, and interior lighting via 12-V solenoids and incandescent lamps. IC Role / Device Role / Timing Role: Low-side predriver interfacing microcontroller GPIOs to high-current N-FETs; handles load faults autonomously without CPU polling. Use Value: Enables single-chip supervision of six independent loads with real-time FLT interrupt and serial fault register readout - reduces BOM cost vs. discrete comparator + driver solutions. |
Use Scenario: Driving 24-V DC solenoid valves and contactor coils in factory automation cabinets. IC Role / Device Role / Timing Role: Serial/parallel configurable gate driver with UVLO/OVLO lockout - ensures safe deactivation during brownout or line surge. Use Value: Internal 55-V clamp and PWM fault mode eliminate need for external snubbers and thermal derating - improves reliability in unregulated 24-V industrial supplies. |
| Commercial Vehicle Lighting System | Off-Highway Equipment Power Distribution |
Use Scenario: Managing headlight, fog light, and marker lamp circuits subject to load dump transients and vibration-induced opens. IC Role / Device Role / Timing Role: Fault-aware pre-FET driver with open-load detection on all channels - identifies broken filaments or corroded connectors before system failure. Use Value: Per-channel FLT bit reporting via SDO allows precise diagnostics without additional wiring - accelerates field service and reduces warranty claims. |
Use Scenario: Distributing power to hydraulic pump controllers, sensor excitations, and auxiliary actuators in construction/mining machinery. IC Role / Device Role / Timing Role: Robust low-side driver with –40°C to +125°C operation and 112°C/W thermal resistance - sustains performance in sealed, convection-limited enclosures. Use Value: Dual interface support lets designers assign safety-critical loads to parallel INx control (instant response) and non-critical loads to serial bus - optimizes MCU resource allocation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-side pre-FET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPIC46L01DBG4 | Latches off on shorted-load fault (no PWM mode); identical pinout, package, and serial/parallel interface | Suitable for systems where immediate channel disable is preferred over retry behavior - e.g., safety-critical cutouts | Select when deterministic fault shutdown is required and thermal management of external FETs is handled separately |
| TPIC46L03DBG4 | Omits under-battery-voltage detection; retains 55-V clamp and PWM fault mode; same DB package | Targeted at 24-V-only systems without cranking voltage concerns - e.g., telecom power shelves or marine electronics | Choose when UVLO is unnecessary and cost reduction via simplified internal bandgap is prioritized |
Compared with TPIC46L01DBG4 and TPIC46L03DBG4, TPIC46L02DBG4 uniquely balances fault resilience and system continuity through its PWM-mode recovery - making it optimal for applications where temporary overloads (e.g., solenoid coil inrush) must not trigger permanent shutdown, yet thermal protection remains essential.
Availability
TPIC46L02DBG4 is available at Aetrix Electronics and suitable for automotive body control, industrial PLC output stages, commercial vehicle lighting, and off-highway equipment power distribution requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPIC46L02DBG4 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 power management technologies with over 50 years of automotive-grade product experience.
The TPIC46L02DBG4 belongs to TI's TPIC family of intelligent power switches and predrivers, designed specifically for robust, fault-tolerant control of inductive and resistive loads in harsh 12/24-V environments.
FAQ
What fault responses does TPIC46L02DBG4 implement during a shorted-load condition?
TPIC46L02DBG4 transitions the affected channel into a low-duty-cycle PWM mode (68 µs pulse width, 10 ms period) rather than latching off. This limits average power dissipation in the external FET while maintaining diagnostic visibility via FLT assertion and serial fault register bit. The PWM continues until the fault clears or the channel is disabled via INx or serial command. TPIC46L02DBG4's behavior differs from TPIC46L01DBG4 (latch-off) and TPIC46L03DBG4 (latch-off, no UVLO).
How does TPIC46L02DBG4 handle open-load detection on unused channels?
Unused DRAIN0–DRAIN5 pins on TPIC46L02DBG4 must be connected to VBAT through a pullup resistor (typically 10–100 kΩ) to prevent false open-load fault reporting. The device sources 30–80 µA internally on each DRAIN pin during off-state monitoring; without a pullup, the floating node may fall below the 1.1–1.4 V detection threshold and falsely trigger FLT. This requirement applies identically across TPIC46L01/L02/L03 variants.
Can TPIC46L02DBG4 operate with separate VCC and VBAT supplies?
Yes - TPIC46L02DBG4 supports independent VCC (4.5–5.5 V logic supply) and VBAT (8–24 V battery supply). VCC powers internal logic, shift registers, and input buffers; VBAT supplies the GATE outputs and fault comparators. This separation allows interfacing with 3.3-V or 5-V MCUs while driving 12/24-V loads. Note that VCC must be applied before or concurrently with VBAT to ensure proper power-on reset sequencing.
What is the role of VCOMPEN and VCOMP pins on TPIC46L02DBG4?
VCOMPEN (Pin 2) selects the fault reference voltage source: grounded → internal 1.25-V reference; tied to VCC → external voltage applied to VCOMP (Pin 3). VCOMP accepts 0.25–3 V and sets the threshold for shorted-load and open-load detection. Using an external reference allows tuning fault sensitivity for specific load impedances or temperature drift compensation - a capability shared across TPIC46L01/L02/L03 but not present in simpler predrivers.
Does TPIC46L02DBG4 support cascading multiple devices on a single serial bus?
Yes - TPIC46L02DBG4 supports daisy-chained serial operation. SDO of one device connects to SDI of the next; CS and SCLK are shared. Each device consumes 8 bits per transaction (2 unused + 6 channel bits), and fault data (OV, UV, FLT0–FLT5) shifts out MSB-first on SDO during the same clock cycle. Cascading preserves full fault visibility across all devices without additional MCU I/O - a feature confirmed in the SLIS055B datasheet for TPIC46L02DBG4 and all family members.
TPIC46L02DBG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Independent
- Number of Drivers:
- 6
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 4.5V ~ 5.5V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- 1.2mA, 1.2mA
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 3.5µs, 3µs
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SSOP
TPIC46L02DBG4 FAQ
1.How can I place an order for TPIC46L02DBG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPIC46L02DBG4 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 TPIC46L02DBG4 reliable?
The price and inventory of TPIC46L02DBG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPIC46L02DBG4 is usually 5 days.
3.What payment methods are accepted for TPIC46L02DBG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPIC46L02DBG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPIC46L02DBG4?
TPIC46L02DBG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPIC46L02DBG4 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 TPIC46L02DBG4?
For technical support, including TPIC46L02DBG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPIC46L02DBG4 requirements.
6.How does Aetrix verify that TPIC46L02DBG4 is sourced from the original manufacturer or authorized distributors?
All TPIC46L02DBG4 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 TPIC46L02DBG4 meets industry standards.
7.What is the process for return or replacement of TPIC46L02DBG4?
All TPIC46L02DBG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPIC46L02DBG4, 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 TPIC46L02DBG4 part is unused and in its original packaging.
Return procedure for TPIC46L02DBG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPIC46L02DBG4 Tags
-
ZXGD3009E6TA
Diodes Incorporated
-
1EDN7512BXTSA1
Infineon Technologies
-
UCC27517DBVR
Texas Instruments
-
MCP1416T-E/OT
Microchip Technology
-
MCP1402T-E/OT
Microchip Technology
-
MCP1415T-E/OT
Microchip Technology
-
MCP1401T-E/OT
Microchip Technology
-
IX4428NTR
Littelfuse Inc.
-
IRS2005STRPBF
Infineon Technologies
-
IRS2008STRPBF
Infineon Technologies
-
IX4310TTR
Littelfuse Inc.
-
2EDN7524RXTMA1
Infineon Technologies
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
