TPIC6B595DW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPIC6B595DW is an 8-bit serial-to-parallel power shift register with open-drain outputs rated for high-voltage inductive loads, built-in transient protection, and SPI-compatible serial interface in a 20-pin SOIC package. Ideal for driving relays, solenoids, and LED arrays from microcontrollers.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- TPIC6B595DW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7945(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPIC6B595DW?
- 8-bit open-drain power outputs for direct relay, solenoid, and high-current LED driving without external transistors
- Built-in transient protection on all outputs safeguarding against inductive load voltage spikes
- SPI-compatible serial-to-parallel interface enabling up to 8 outputs from only 3 microcontroller GPIO pins
What is TPIC6B595DW used for?
TPIC6B595DW is designed for industrial control panels, home automation systems, and motor drive applications where a microcontroller must drive 8 or more high-power loads from a minimal GPIO count. Cascading multiple TPIC6B595DW devices extends the output count in steps of 8 bits using the same 3-wire SPI bus, scaling to 16, 24, or 32 outputs without additional control lines. The built-in transient protection simplifies design-in for relay and solenoid driver circuits where inductive switching transients would otherwise damage unprotected logic outputs.
What are the specifications of TPIC6B595DW?
| YTEOL | 0 |
| Built-in Protections | TRANSIENT |
| Driver Number of Bits | 8 |
| Input Characteristics | STANDARD |
| Interface IC Type | REGISTER BASED PERIPHERAL DRIVER |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Number of Channels | 8 |
| Number of Functions | 1 |
| Output Characteristics | OPEN-DRAIN |
| Output Current Flow Direction | SINK |
| Output Current-Max | 0.15A |
| Output Peak Current Limit-Nom | 0.5A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.3mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Turn-off Time | -0.09 µs |
| Turn-on Time | 0.15 µs |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan |
Where can I find the TPIC6B595DW datasheet?
TPIC6B595DW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPIC6B595DW?
Compatible alternatives and drop-in replacements for TPIC6B595DW:
Frequently Asked Questions
How many relay outputs can be controlled with a single SPI bus using cascaded TPIC6B595DW devices?
Each TPIC6B595DW provides 8 open-drain outputs. By daisy-chaining devices through the serial data-out pin, a single 3-wire SPI bus (SCLK, SDI, RCLK) can control 16 outputs with 2 devices, 24 outputs with 3, or up to 64 outputs with 8 devices — all without adding GPIO pins. The latched output register ensures all relays switch simultaneously on the rising edge of the latch clock.
What built-in protection does TPIC6B595DW offer for driving 24 V DC relay coils?
TPIC6B595DW incorporates transient suppression on every open-drain output, clamping inductive flyback spikes generated when 24 V relay coils de-energize. This internal protection eliminates the need for external freewheeling diodes on each channel, reducing BOM count by up to 8 diodes per device in relay-drive applications.
How does TPIC6B595DW fit into a display or LED matrix driver design compared to a standard 74HC595?
Unlike the 74HC595 which provides push-pull outputs limited to logic-level currents of 6 mA to 8 mA, TPIC6B595DW's open-drain outputs can sink substantially higher currents, typically 150 mA to 500 mA per channel depending on the specific variant, making it suitable for driving 20 mA LED segments or strings directly without external current transistors. The 20-pin SOIC package keeps the PCB footprint compact.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.6200 | $4.62 |
| 100+ | $3.4600 | $346.00 |
| 165+ | $1.2443 | $205.31 |
| 210+ | $1.2028 | $252.59 |
| 280+ | $1.0784 | $301.95 |
| 475+ | $0.7945 | $377.38 |
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