My Inquiry
My Account
Texas Instruments TSM104WAIPWR
- Part No.:
- TSM104WAIPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TSM104WAIPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,236
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSM104WAIPWR 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 3 mV max input offset voltage (25°C), 0.4% max reference voltage tolerance (25°C), and operates across 3 V to 30 V supply range - enabling use in battery chargers and switch-mode power supplies.
For engineers reviewing the TSM104WAIPWR datasheet, TSM104WAIPWR pinout, TSM104WAIPWR application, or TSM104WAIPWR equivalent, key selection criteria include its dual-function architecture (four op-amps + adjustable 2.5 V reference), rail-to-rail output swing (0 V to VCC – 2 V), low 375 µA/channel supply current at 5 V, and operation over –40°C to 105°C.
Technical Context
The TSM104WAIPWR integrates four independent high-precision op-amps and a single two-terminal adjustable shunt voltage reference sharing a common cathode terminal. Each op-amp features input common-mode range extending to ground and large output swing - supporting error amplification in isolated feedback loops.
The reference section provides 2.5 V ±0.4% (25°C) with 7 mV typical temperature drift and 0.2 Ω dynamic impedance, allowing stable regulation up to 36 V via external resistor divider. Both functional blocks operate from a single 3–30 V supply, with shared thermal design and ESD protection rated at 2 kV HBM.
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) | 3 mV max - enables accurate current/voltage sensing in battery charge termination and overvoltage protection. |
| Reference Voltage Tolerance (25°C) | ±0.4% - ensures tight output regulation in DC-DC converters requiring <1% output accuracy. |
| Supply Current per Channel | 375 µA typ at 5 V - allows low-power standby operation in always-on power management systems. |
| Unity-Gain Bandwidth | 0.9 MHz typ - sufficient for loop compensation in 100–500 kHz switch-mode power supplies. |
| Output Voltage Swing | 0 V to VCC – 2 V - drives logic-level inputs or MOSFET gates directly without level-shifting circuitry. |
| 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 footprint, 1.2 mm max height, lead-free NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 8, 10, 12, 14 | Op-amp inputs/outputs (1IN+, 1IN−, 1OUT, etc.) | Standard quad op-amp pin mapping per TI SOIC/TSSOP layout; enables direct replacement of LM324-family layouts with enhanced precision. |
| 2 | VCC+ | Positive supply rail for all op-amps and reference - must be decoupled locally to suppress switching noise coupling. |
| 4 | VCC− | Ground reference for op-amps - tied to system GND; not isolated from reference cathode return path. |
| 6 | ADJUST | Reference voltage divider node - connects external resistors to set output from 2.5 V to 36 V. |
| 7 | CATHODE | Common cathode terminal for shunt reference - sinks current into this pin to regulate voltage at ADJUST node. |
| 9, 11, 13, 15, 16 | Unused / NC (per datasheet pin diagram) | No internal connection - must remain unconnected or grounded per PCB layout guidelines to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated quad op-amp + shunt reference | Reduces BOM count by eliminating discrete reference IC and three additional op-amps in SMPS feedback networks. |
| Low offset voltage (3 mV max) | Minimizes gain error in current-sense amplifier stages, improving charge termination accuracy in Li-ion battery chargers. |
| Adjustable reference (2.5 V to 36 V) | Supports single-part design across multiple output voltages - e.g., 5 V, 12 V, and 24 V DC-DC modules. |
| 0.2 Ω reference dynamic impedance | Stabilizes regulation against load transients up to 100 mA sink current without external compensation capacitors. |
| Input common-mode range includes GND | Enables direct sensing of low-side current shunts without level-shifting, simplifying PCB layout in high-side switch controllers. |
Applications
| Battery Charger Control | Switch-Mode Power Supply Feedback |
|---|---|
|
Use Scenario: Precision constant-current/constant-voltage charging for 2–4 cell Li-ion packs using flyback or buck topology. IC Role / Device Role / Timing Role: Dual-role device: op-amps compare sensed battery voltage/current against reference-set thresholds; reference sets 2.5 V基准 for error amplifier biasing. Use Value: Eliminates need for separate TL431 and quad op-amp, reducing component count while maintaining ±0.5% output regulation over temperature. |
Use Scenario: Primary-side feedback in isolated AC/DC adapters where optocoupler latency limits bandwidth. IC Role / Device Role / Timing Role: Op-amps condition auxiliary winding voltage and current signals; reference provides stable 2.5 V threshold for overvoltage protection comparator. Use Value: Enables fast transient response (<10 µs overvoltage detection) due to low op-amp propagation delay and tight reference stability. |
| Linear Voltage Regulator Monitor | Data-Acquisition System Reference |
|
Use Scenario: Monitoring and fault detection in high-accuracy LDOs used in medical sensor front-ends. IC Role / Device Role / Timing Role: One op-amp buffers LDO output; second compares against TSM104WAIPWR's internal 2.5 V reference to detect ±1% deviation. Use Value: Achieves sub-10 mV detection threshold without external precision reference, lowering system cost and board area. |
Use Scenario: Providing stable excitation voltage and signal conditioning for 16-bit SAR ADCs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Reference supplies 2.5 V to ADC reference input; op-amps buffer and filter sensor bridge outputs before digitization. Use Value: 7 mV typical tempco and 0.4% initial tolerance ensure <0.02% full-scale error contribution across –40°C to 105°C operating range. |
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 |
|---|---|---|---|
| TL431AILP + LM324DR | Discrete solution: separate shunt reference (±1% tolerance) and quad op-amp (6 mV offset); no shared thermal tracking. | Higher BOM count and larger PCB footprint; requires external compensation for reference stability. | Lower unit cost but increases design complexity and calibration effort in production. |
| TSM104WIPWR | Same pinout and package, but standard grade: 5 mV max offset (25°C), 1% reference tolerance (25°C), higher tempco (30 mV full-range). | Suitable for non-critical regulation where ±2% output accuracy is acceptable, e.g., auxiliary supply monitoring. | Select TSM104WIPWR only when tighter regulation is unnecessary - avoids over-specifying for cost-sensitive designs. |
Compared with TL431AILP+LM324DR, TSM104WAIPWR reduces component count and improves thermal tracking between reference and error amp; compared with TSM104WIPWR, it delivers 2× tighter reference tolerance and 40% lower offset voltage - critical for <1% output regulation in battery chargers.
Availability
TSM104WAIPWR is available at Aetrix Electronics and suitable for battery chargers, switch-mode power supplies, and linear voltage regulation requiring stable component supply across automotive and industrial temperature ranges.
Supply support for TSM104WAIPWR 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 TSM104W/A family was developed specifically for integrated feedback control in compact, high-efficiency power conversion systems - combining op-amp precision with reference stability in a single monolithic die.
FAQ
What is the maximum cathode current supported by the TSM104WAIPWR voltage reference?
The TSM104WAIPWR voltage reference supports a cathode current range of 0.5 mA to 100 mA. This wide sink-current capability allows direct driving of optocoupler LEDs or transistor bases in isolated feedback paths without external current boosting. The 100 mA absolute maximum rating is validated under recommended operating conditions and must not be exceeded to maintain reference stability and long-term reliability of the TSM104WAIPWR.
Can the TSM104WAIPWR operate from a single 3.3 V supply?
Yes, the TSM104WAIPWR operates from a minimum supply voltage of 3 V, making it compatible with 3.3 V systems. However, the output voltage swing is limited to 0 V to VCC – 2 V, so at 3.3 V supply, the maximum output is 1.3 V - insufficient for rail-to-rail digital interfacing. For analog signal conditioning at 3.3 V, ensure external loads remain within this reduced headroom, and verify that reference regulation remains stable at low VCC per the datasheet's IK vs. VCC curves for the TSM104WAIPWR.
How does the TSM104WAIPWR's input offset voltage drift compare to standard quad op-amps?
The TSM104WAIPWR specifies an input offset voltage drift of 7 µV/°C (typical), significantly lower than generic quad op-amps like LM324 (typically 10–20 µV/°C). This low drift ensures minimal gain error accumulation over temperature in precision applications such as battery voltage monitoring. The TSM104WAIPWR achieves this through laser-trimmed input stages and matched on-die resistor networks - a key differentiator confirmed in the SLOS478D datasheet for the TSM104WAIPWR grade.
Is the TSM104WAIPWR pin-compatible with the LM324 in TSSOP-16 packages?
No, the TSM104WAIPWR is not pin-compatible with the LM324 in TSSOP-16. While both are 16-pin TSSOP devices, the TSM104WAIPWR includes dedicated CATHODE and ADJUST pins for its integrated voltage reference, altering the pin mapping. The LM324 uses pins 1–4 and 13–16 for op-amp inputs/outputs only. Engineers must consult the TSM104WAIPWR pin diagram and revise PCB layout - especially routing for CATHODE (pin 7) and ADJUST (pin 6) - when migrating from LM324-based designs to the TSM104WAIPWR.
What is the thermal resistance (θJA) of the TSM104WAIPWR in its TSSOP package?
The TSM104WAIPWR in TSSOP-16 (PW) package has a junction-to-ambient thermal resistance (θJA) of 108°C/W, as specified in the Absolute Maximum Ratings table of the TI datasheet. This value assumes standard JEDEC 2-layer board conditions (1-inch² copper pad, 2 oz Cu). To maintain safe junction temperature below 150°C, maximum power dissipation should be limited to approximately 330 mW at 25°C ambient - critical when sinking >50 mA through the reference cathode. Thermal performance of the TSM104WAIPWR can be improved with PCB copper pour under the exposed pad (if present) and optimized airflow.
TSM104WAIPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 500 µV
- 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
TSM104WAIPWR FAQ
1.How can I place an order for TSM104WAIPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TSM104WAIPWR 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 TSM104WAIPWR reliable?
The price and inventory of TSM104WAIPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSM104WAIPWR is usually 5 days.
3.What payment methods are accepted for TSM104WAIPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSM104WAIPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSM104WAIPWR?
TSM104WAIPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSM104WAIPWR 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 TSM104WAIPWR?
For technical support, including TSM104WAIPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSM104WAIPWR requirements.
6.How does Aetrix verify that TSM104WAIPWR is sourced from the original manufacturer or authorized distributors?
All TSM104WAIPWR 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 TSM104WAIPWR meets industry standards.
7.What is the process for return or replacement of TSM104WAIPWR?
All TSM104WAIPWR units undergo pre-shipment inspection (PSI). If there is an issue with TSM104WAIPWR, 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 TSM104WAIPWR part is unused and in its original packaging.
Return procedure for TSM104WAIPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSM104WAIPWR Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
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…
