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Texas Instruments TSM104WIPW
- Part No.:
- TSM104WIPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TSM104WIPW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,070
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Product details
Overview
TSM104WIPW from Texas Instruments is a quad operational amplifier with integrated programmable voltage reference, designed for precision feedback and regulation in power control circuits. It delivers 5 mV max input offset voltage (25°C), 375 µA/channel supply current at 5 V, 0.9 MHz unity-gain bandwidth, rail-to-rail output swing (0 V to VCC – 2 V), and adjustable reference output from 2.5 V to 36 V - enabling use in switch-mode power supplies and linear regulators.
For engineers reviewing the TSM104WIPW datasheet, TSM104WIPW pinout, TSM104WIPW application, or TSM104WIPW equivalent, key selection considerations include its dual-function integration (four op-amps + shunt reference), TSSOP-16 package footprint, –40°C to 105°C operating range, and grade-specific tolerance (1% VREF at 25°C), critical for stable closed-loop voltage control in industrial and embedded power systems.
Technical Context
The TSM104WIPW integrates four independent low-input-bias-current op-amps with a single programmable shunt voltage reference sharing the same die. Its op-amp inputs feature rail-to-rail common-mode range including ground, supporting single-supply operation from 3 V to 30 V, while the reference section provides 2.5 V ±1% initial accuracy and 7 mV typical drift over temperature.
Each op-amp channel achieves 85 dB CMRR and 100 dB PSRR at 25°C, and the reference exhibits 0.2 Ω dynamic impedance with 0.5–100 mA sink-current capability - enabling direct error amplification and precise reference adjustment without external components in flyback or buck controller feedback networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 30 V - supports wide-input industrial and automotive power rails without external regulators. |
| Input Offset Voltage (25°C) | 5 mV max - enables accurate error signal amplification in voltage-mode SMPS feedback loops. |
| Reference Initial Accuracy (25°C) | ±1% - sets baseline regulation tolerance for adjustable output supplies using external resistor dividers. |
| Unity-Gain Bandwidth | 0.9 MHz typ - sufficient for compensation of mid-frequency switching converters up to ~200 kHz. |
| Output Swing (RL = 10 kΩ) | 0 V to VCC – 2 V - allows full-range sensing and drive into high-side MOSFET gate drivers or optocoupler LEDs. |
| Reference Dynamic Impedance | 0.2 Ω typ - ensures minimal load-induced reference voltage shift during transient current demand changes. |
| Operating Temperature Range | –40°C to 105°C - qualified for under-hood automotive and industrial ambient environments. |
Pinout & Package
TSSOP-16 package (PW), 4.4 mm × 5.0 mm body, 1.2 mm max height, 0.65 mm lead pitch, exposed thermal pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Op-amp output (OUT1–OUT4) | Classical rail-to-rail output stage; drives error signal to PWM controller or optocoupler. |
| 2, 6, 10, 14 | Op-amp inverting input (IN−1–IN−4) | Accepts feedback signals; high-impedance node for precision resistive divider connection. |
| 3, 7, 11, 15 | Op-amp non-inverting input (IN+1–IN+4) | Receives reference or setpoint; supports ground-referenced sensing in single-supply configurations. |
| 4 | VCC+ | Positive supply rail for all op-amps and reference; decoupling required within 1 cm. |
| 12 | VCC− / GND | Common return for op-amps and reference cathode; must be low-impedance ground plane. |
| 16 | Cathode (K) | Reference output node; sinks current to adjust output voltage via external resistor divider. |
| 8 | Adjust (ADJ) | Reference anode; connects to cathode through external resistor to set VOUT = VREF × (1 + R1/R2). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated quad op-amp + shunt reference | Reduces BOM count and PCB area vs. discrete op-amp + TL431 solution in SMPS feedback networks. |
| Input common-mode range includes GND | Enables direct sensing of low-side current shunts or ground-referenced voltage dividers without level-shifting. |
| Low 375 µA/channel supply current | Minimizes quiescent power loss in battery-backed or energy-sensitive standby regulation stages. |
| 2-kV HBM ESD protection | Improves robustness during board handling and system-level ESD events without external protection diodes. |
| Wide 0.5–100 mA reference sink range | Supports direct driving of optocoupler LEDs across full load range without external transistor buffering. |
Applications
| Battery Charger Feedback Control | Isolated Flyback Regulator |
|---|---|
|
Use Scenario: Precision constant-voltage/constant-current regulation in multi-cell Li-ion chargers using isolated DC-DC topology. IC Role / Device Role / Timing Role: TSM104WIPW serves as error amplifier and reference source in secondary-side feedback loop, comparing sensed output voltage against internal 2.5 V reference. Use Value: 1% VREF tolerance and 5 mV op-amp offset ensure ±1.5% total output regulation accuracy across temperature, reducing need for post-production trimming. |
Use Scenario: Output voltage stabilization in AC/DC adapters with optocoupler-coupled feedback. IC Role / Device Role / Timing Role: TSM104WIPW's reference and one op-amp configure as shunt regulator driving optocoupler LED; remaining op-amps monitor overvoltage and overcurrent. Use Value: 0.2 Ω reference impedance maintains stable LED current despite line/load transients, improving cross-regulation and dynamic response. |
| Programmable Linear Regulator | Data-Acquisition Reference Buffer |
|
Use Scenario: Adjustable lab-grade bench power supply with digital DAC-controlled output voltage. IC Role / Device Role / Timing Role: TSM104WIPW reference sets base voltage; op-amps buffer DAC output and drive pass transistor gate with high PSRR. Use Value: Rail-to-rail output swing (0 V to VCC – 2 V) enables full 0–30 V output range when paired with high-voltage N-channel MOSFET. |
Use Scenario: High-stability reference conditioning for 16-bit SAR ADC front-end in industrial sensor nodes. IC Role / Device Role / Timing Role: One op-amp buffers and filters the 2.5 V reference; others condition sensor signals with matched gain/offset. Use Value: 7 mV typical VREF drift over –40°C to 105°C limits reference-induced INL error to <0.05% FS, preserving ADC effective resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp + voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431 + LM324DR | Discrete solution: separate shunt reference (2.5 V, ±1%) and quad op-amp (7 mV offset, 1.2 MHz GBW); no shared thermal tracking. | Requires 2 ICs, larger layout area, and external compensation; lacks integrated thermal coupling between reference and op-amps. | Select when cost sensitivity outweighs board space constraints and thermal drift performance is secondary. |
| TSM104WAIPWR | Same pinout and function, but A-grade: 3 mV max VIO (25°C) and 0.4% VREF tolerance (25°C), tighter tempco (0.8% full range). | Delivers higher regulation accuracy in precision applications like medical power supplies or metrology equipment. | Choose TSM104WAIPWR when ±0.5% output regulation is required; otherwise TSM104WIPW offers optimal cost/performance balance. |
Compared with TL431+LM324DR, TSM104WIPW reduces component count and improves thermal tracking between reference and error amp, while TSM104WAIPWR trades higher unit cost for tighter initial accuracy and lower drift - making TSM104WIPW the standard choice for industrial-grade SMPS where ±1% regulation suffices.
Availability
TSM104WIPW is available at Aetrix Electronics and suitable for switch-mode power supplies, battery chargers, and linear voltage regulation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSM104WIPW 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 company specializing in analog and embedded processing technologies, with leadership in power management and precision analog ICs.
The TSM104WIPW belongs to TI's integrated power control product line, engineered specifically to consolidate error amplification and voltage reference functions into a single IC for compact, reliable SMPS feedback design.
FAQ
What is the maximum supply voltage rating for the TSM104WIPW?
The TSM104WIPW has an absolute maximum supply voltage (VCC+ to VCC−) of 36 V, but its recommended operating range is 3 V to 30 V. Operation above 30 V risks exceeding safe junction temperature or violating SOA limits, especially under load. Always observe derating curves in the datasheet for continuous operation at elevated voltages.
Does the TSM104WIPW support single-supply operation?
Yes, the TSM104WIPW supports true single-supply operation: its op-amp input common-mode range includes ground (0 V), and output swings from 0 V to VCC – 2 V. This allows direct interface with ground-referenced sensors or resistive dividers without level-shifting circuitry - a key advantage in battery-powered and isolated power supply designs.
How is the reference voltage adjusted on the TSM104WIPW?
The TSM104WIPW reference is configured as a shunt regulator: connect the ADJ pin (Pin 8) to the cathode (Pin 16) through an external resistor divider. Output voltage follows VOUT = 2.5 V × (1 + R1/R2), where R1 connects from cathode to output and R2 connects from output to ground. The reference sinks current through this network to maintain regulation.
What is the thermal resistance (θJA) of the TSM104WIPW in its TSSOP-16 package?
The TSM104WIPW in the PW (TSSOP-16) package has a specified junction-to-ambient thermal resistance (θJA) of 108°C/W under standard JEDEC test conditions. Actual thermal performance depends on PCB copper area, layer stack-up, and airflow; use TI's thermal design guidelines and layout recommendations to achieve reliable operation at full load across –40°C to 105°C.
Can the TSM104WIPW replace a TL431 in existing designs?
The TSM104WIPW can replace a TL431 in feedback paths where additional op-amp functionality is needed, but it is not a drop-in replacement: Pin 16 (cathode) and Pin 8 (adjust) map to TL431's cathode and reference pins, yet TSM104WIPW adds 12 extra pins for four op-amps. Redesign is required to utilize or terminate unused op-amp sections per TI's recommendations to avoid instability.
TSM104WIPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 900 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
TSM104WIPW FAQ
1.How can I place an order for TSM104WIPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TSM104WIPW 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 TSM104WIPW reliable?
The price and inventory of TSM104WIPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSM104WIPW is usually 5 days.
3.What payment methods are accepted for TSM104WIPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSM104WIPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSM104WIPW?
TSM104WIPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSM104WIPW 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 TSM104WIPW?
For technical support, including TSM104WIPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSM104WIPW requirements.
6.How does Aetrix verify that TSM104WIPW is sourced from the original manufacturer or authorized distributors?
All TSM104WIPW 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 TSM104WIPW meets industry standards.
7.What is the process for return or replacement of TSM104WIPW?
All TSM104WIPW units undergo pre-shipment inspection (PSI). If there is an issue with TSM104WIPW, 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 TSM104WIPW part is unused and in its original packaging.
Return procedure for TSM104WIPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSM104WIPW Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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