Texas Instruments TPIC44H01DA

Overview

TPIC44H01DA from Texas Instruments is a 4-channel high-side pre-FET driver IC designed to control external NMOS power FETs in low-frequency switching applications for resistive or inductive loads-including solenoids and incandescent bulbs. It supports both serial (SPI-compatible) and parallel input control, features dynamic over-current threshold generation, independent short-to-ground and open-load detection per channel, and integrated charge pump for high-side N-FET drive. Its sleep mode draws only 15–40 µA, enabling direct battery connection.

For engineers reviewing the TPIC44H01DA datasheet, TPIC44H01DA pinout, TPIC44H01DA application, or TPIC44H01DA equivalent, key selection considerations include its 40 V V(PWR) absolute max rating, 4-channel fault-encoded serial reporting (2-bit/channel), programmable deglitch timers (16–240 µs), AR_ENBL-configurable latched vs. auto-retry fault response, and dual-input (serial OR parallel) gate control architecture.

Technical Context

The TPIC44H01DA implements a dual-input control architecture where serial (SDI/SCLK/CS) and parallel (IN1–IN4) signals are logically OR'd to drive GATE1–GATE4 outputs. Its internal charge pump (CP1/CP2/V(CP)) generates gate drive voltage up to ~42 V, enabling high-side N-FET operation across 8–24 V V(PWR) supply range.

Fault management uses dedicated analog comparators per channel: V(STG) ≈ 2.35 V for on-state short-to-ground detection, V(open) ≈ 2.4 V for off-state open-load detection, and dynamic over-current thresholds set via V(COMPx) and V(PK_A)/V(PK_B). Fault status is reported asynchronously via open-drain FLT and encoded serially (2 bits per channel) through SDO with configurable deglitch timing (t(OC), t(STG), t(OL) = 16–240 µs).

Key Specifications

Pinout & Package

TPIC44H01DA is housed in a 32-pin DA package (SOIC-32 wide-body), thermally enhanced for industrial and automotive case temperature operation up to 125°C. Pin mapping is validated per SLIS088 datasheet Figure 1 (DA package top view).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side pre-FET driver applications.

Compared with TPIC44H01DA, TPIC44H02DA offers identical functionality with longer default deglitch timers for improved noise immunity, while TPIC6B595N provides higher channel count but sacrifices fault intelligence, high-side drive, and automotive-grade voltage tolerance-making it unsuitable as a functional replacement.

Availability

TPIC44H01DA is available at Aetrix Electronics and suitable for automotive body control modules, industrial solenoid drivers, and commercial HVAC blower control systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability.

Supply support for TPIC44H01DA 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 and industrial IC design heritage.

The TPIC44H01DA belongs to TI's high-side driver product line, engineered specifically for robust, fault-aware control of external N-channel MOSFETs in 12 V/24 V systems-targeting automotive lighting, industrial actuation, and heavy equipment applications.

FAQ

What is the maximum V(PWR) voltage the TPIC44H01DA can withstand without damage?

The TPIC44H01DA has an absolute maximum V(PWR) rating of 40 V. Operation above 24 V triggers over-voltage lockout (V(OVLO) = 27.5–32.5 V), disabling gate outputs to protect external FETs. The device remains functional and undamaged up to 40 V, as confirmed in the Absolute Maximum Ratings table of SLIS088.

How does the TPIC44H01DA support incandescent bulb driving without false over-current faults?

The TPIC44H01DA uses dynamic over-current threshold generation: V(PK_A) and V(PK_B) pins allow the user to feed a peak-hold voltage representing inrush current, which is compared against V(COMPx) to set a time-varying trip point. This avoids false triggering during cold-filament surges-confirmed in the "description" section and Figure 12 of SLIS088.

Can the TPIC44H01DA drive high-side N-FETs directly, and what gate voltage does it provide?

Yes-the TPIC44H01DA integrates a charge pump (CP1/CP2/V(CP)) that generates gate drive voltage VG = V(PWR)+4 to V(PWR)+18 V (typical at 12 V supply), clamped to 15–19.5 V. This enables direct high-side N-FET drive without external boost circuitry, as specified in the Electrical Characteristics table (VG parameter) of SLIS088.

What fault conditions does the TPIC44H01DA detect, and how are they reported?

The TPIC44H01DA detects five fault types per channel: normal, over-voltage, open-load, over-current, and short-to-ground. Each is encoded into two bits (FxB/FxA) and reported serially via SDO. Simultaneously, all faults assert the open-drain FLT pin. Fault encoding and FLT behavior are fully documented in Table 3 and the "Fault Logic" block diagram of SLIS088.

Is the TPIC44H01DA pin-compatible with other devices in the TPIC44Hxx family?

Yes-TPIC44H01DA is pin-compatible with TPIC44H02DA and TPIC44H03DA in the same DA package. Differences are limited to default deglitch timer settings and internal fault threshold configurations; no PCB changes are required for substitution within this family, as verified in the "Orderable Information" and "Terminal Functions" sections of SLIS088.