My Inquiry
My Account
Texas Instruments TLC59212IPWR
- Part No.:
- TLC59212IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC59212IPWR.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,835
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC59212IPWR from Texas Instruments is an 8-bit open-collector sink driver with latch, designed for 5-V logic-level control of high-voltage (up to 24 V) LED or relay loads. It features positive-edge-triggered D-type flip-flops, direct clear (CLR), and supports 40 mA per output - enabling discrete load switching in industrial displays and electromechanical interfaces.
For engineers reviewing the TLC59212IPWR datasheet, TLC59212IPWR pinout, TLC59212IPWR application, or TLC59212IPWR equivalent, key selection criteria include its 20-pin TSSOP package, 40 mA sink capability per channel, 24 V output voltage rating, latch functionality for static pattern retention, and compatibility with standard 5-V MCU GPIO timing.
Technical Context
The TLC59212IPWR implements eight independent D-type latches, each triggered on the rising edge of CLK and cleared synchronously via active-low CLR. Input thresholds are fixed at ~3.5 V (Vt+) and ~1.5 V (Vt−), providing robust noise immunity against 5-V logic transitions.
Each output is an open-collector NPN transistor rated for 24 V off-state voltage and 40 mA continuous sink current. The device operates across –40°C to +85°C with supply voltage tightly constrained to 4.5–5.5 V, and exhibits typical VOL = 0.32 V at 40 mA, indicating low saturation voltage for efficient power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - requires stable 5-V rail; not tolerant of 3.3-V logic or wide-input supplies |
| Output Voltage Max | 24 V - enables direct drive of common industrial LEDs, relays, and solenoids without external level-shifting |
| Output Current | 40 mA per channel - sufficient for medium-brightness LED arrays or small-signal relay coils |
| Input Thresholds | Vt+ = 3.5 V, Vt− = 1.5 V - ensures reliable recognition of TTL/CMOS 5-V logic levels with hysteresis |
| Propagation Delay | tPHL/tPLH ≤ 250 ns - supports clock rates up to ~2 MHz for static display updates |
| Operating Temp | –40°C to +85°C - qualified for industrial ambient environments without derating |
| ESD Rating | HBM ±2000 V - meets JEDEC JESD22-A114A for handling in standard assembly lines |
Pinout & Package
TSSOP-20 (PW) package, 6.50 mm × 4.40 mm body, 0.65 mm lead pitch, 1.2 mm max height, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLR | Asynchronous reset input | Active-low global clear - forces all Y outputs high-impedance regardless of CLK or D state |
| D1–D8 | Data inputs | Parallel 8-bit latch data - values transferred to Y outputs only on next CLK rising edge |
| CLK | Clock input | Positive-edge-triggered latch enable - no effect at steady high/low; timing-critical for setup/hold (5 ns / 15 ns) |
| Y1–Y8 | Sink outputs | Open-collector NPN - connect load anode to VLED, cathode to Yn; sinks current when driven low |
| VCC | Logic supply | 5-V digital core supply - powers internal logic and input buffers; separate from VLED |
| VLED | Load supply | Independent high-side supply (up to 24 V) - powers external loads; not connected internally to VCC |
| GND | Ground reference | Common return for logic and load paths - must be low-impedance to support 40 mA per channel |
Key Features
| Feature | Design Value |
|---|---|
| 8-bit latch architecture | Retains output states between clock edges - eliminates need for continuous MCU bit-banging during static display operation |
| 24-V open-collector outputs | Direct interface to higher-voltage loads without external transistors or level shifters |
| 40-mA per-channel sink | Supports standard LED segments and small signal relays without external current amplification |
| Direct clear (CLR) input | Hardware-level emergency shutdown - instantly disables all outputs independently of clock or data state |
| LBC3S BiCMOS process | Combines CMOS input efficiency with bipolar output drive strength - delivers low VOL and high VOUT simultaneously |
Applications
| LED Matrix Displays | Industrial Relay Drivers |
|---|---|
Use Scenario: Driving 8-segment alphanumeric displays or 8×8 LED dot-matrix panels in factory HMIs or instrumentation panels. IC Role / Device Role / Timing Role: Sink driver and latch - holds segment patterns while MCU prepares next frame; CLK synchronizes updates. Use Value: Reduces MCU GPIO count and software overhead by replacing 8 discrete transistors with a single 20-pin IC that retains state. | Use Scenario: Controlling 8 small-form-factor electromagnetic relays in programmable logic controllers or I/O expansion modules. IC Role / Device Role / Timing Role: High-voltage load switch - interfaces 5-V microcontroller outputs to 12–24 V relay coils with galvanic separation. Use Value: Eliminates need for external flyback diodes or Darlington arrays; built-in 24-V tolerance simplifies BOM and layout. |
| Automated Test Equipment Indicators | Printer Head Drivers |
Use Scenario: Status indication in benchtop test instruments where LEDs must remain lit during MCU sleep or reconfiguration. IC Role / Device Role / Timing Role: Latched sink buffer - maintains LED ON/OFF state without CPU intervention or refresh cycles. Use Value: Enables ultra-low-power system modes while preserving visual feedback - no background polling required. | Use Scenario: Driving thermal or impact printer head elements requiring precise 40-mA current pulses at 5-V logic timing. IC Role / Device Role / Timing Role: Precision current sink - delivers consistent 40-mA pulses with fast turn-off (tTHL ≤ 185 ns) for accurate dot placement. Use Value: Matches printer head electrical requirements without external current-setting resistors or op-amp feedback loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit open-collector sink driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPIC6B595N | Shift-register-based (serial-in/parallel-out), no latch; requires SPI clocking instead of parallel D+CLK | Better for space-constrained designs with limited GPIO; less suitable for random-access updates | Choose TPIC6B595N when serial interface and cascading capability outweigh need for parallel write simplicity |
| ULN2803ADWR | Non-latching Darlington array; 500-mA per channel but slower switching (tOFF > 500 ns); no CLR or clock control | Higher current for solenoids/motors; unsuitable for time-critical or latch-retained display use | Choose ULN2803ADWR when driving heavier inductive loads where latch function is unnecessary |
Compared with TLC59212IPWR, TPIC6B595N trades parallel interface simplicity for serial flexibility and reduced pin count, while ULN2803ADWR offers higher current but lacks timing control and latch retention - making TLC59212IPWR optimal for deterministic, low-latency, 5-V–controlled 8-bit static load switching.
Availability
TLC59212IPWR is available at Aetrix Electronics and suitable for industrial HMI displays, PLC I/O modules, automated test equipment indicators, and printer head interfaces requiring stable component supply and long-term manufacturability.
Supply support for TLC59212IPWR 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and high-reliability silicon solutions for industrial, automotive, and communications markets.
The TLC59212IPWR belongs to TI's legacy logic and interface driver product line, engineered specifically for robust 5-V–based industrial control systems requiring latch-stable, high-voltage sink switching with minimal external components.
FAQ
What is the maximum allowable voltage on the Y outputs of the TLC59212IPWR?
The TLC59212IPWR Y outputs are rated for up to 24 V in the off-state (VO(off) = 24 V), as specified in the Absolute Maximum Ratings table. This allows safe interfacing with 12 V and 24 V LED strings or relay coils without external clamping. Exceeding 24 V risks permanent damage, even with current limiting.
Can the TLC59212IPWR operate from a 3.3-V supply?
No, the TLC59212IPWR requires a VCC supply of 4.5 V to 5.5 V and is not specified for 3.3-V operation. Its input thresholds (Vt+ = 3.5 V, Vt− = 1.5 V) and internal LBC3S BiCMOS process are optimized for 5-V logic compatibility. Using 3.3 V may result in unreliable CLK or D input recognition and undefined output behavior.
Does the TLC59212IPWR require external pull-up resistors on its Y outputs?
Yes - because the Y outputs are open-collector, each must be pulled up to its respective load supply (e.g., VLED) via an external resistor. The resistor value determines LED current or relay coil drive strength. No internal pull-ups exist; omission results in floating or non-functional outputs.
How does the CLR pin function in relation to the clock and data inputs of the TLC59212IPWR?
The CLR pin on the TLC59212IPWR is an asynchronous, active-low input that overrides both CLK and D signals: when CLR is low, all Y outputs go high-impedance immediately, regardless of current latch state or clock edge timing. It provides hardware-level emergency disable independent of the clock domain.
Is the TLC59212IPWR pin-compatible with other TI 20-pin TSSOP drivers like the TLC5916 or TLC5928?
No - the TLC59212IPWR has a unique pinout optimized for parallel 8-bit latch operation (D1–D8, Y1–Y8, CLK, CLR). Devices like TLC5916 (constant-current LED driver) and TLC5928 (serial-shift sink driver) use different functional architectures and incompatible pin assignments; direct PCB replacement is not possible without layout revision.
TLC59212IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- 210ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- -, 40mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 5 µA
- Input Capacitance:
- 5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
TLC59212IPWR FAQ
1.How can I place an order for TLC59212IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC59212IPWR 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 TLC59212IPWR reliable?
The price and inventory of TLC59212IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC59212IPWR is usually 5 days.
3.What payment methods are accepted for TLC59212IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC59212IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC59212IPWR?
TLC59212IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC59212IPWR 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 TLC59212IPWR?
For technical support, including TLC59212IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC59212IPWR requirements.
6.How does Aetrix verify that TLC59212IPWR is sourced from the original manufacturer or authorized distributors?
All TLC59212IPWR 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 TLC59212IPWR meets industry standards.
7.What is the process for return or replacement of TLC59212IPWR?
All TLC59212IPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC59212IPWR, 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 TLC59212IPWR part is unused and in its original packaging.
Return procedure for TLC59212IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC59212IPWR Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
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…
