My Inquiry
My Account
Texas Instruments TSM104WIDG4
- Part No.:
- TSM104WIDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TSM104WIDG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,053
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSM104WIDG4 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 - used in switch-mode power supply error amplifiers and battery charger voltage sensing.
For engineers reviewing the TSM104WIDG4 datasheet, TSM104WIDG4 pinout, TSM104WIDG4 application, or TSM104WIDG4 equivalent, key selection criteria include its dual-function integration (four op-amps + shunt reference), wide 3 V–30 V supply range, –40°C to 105°C operating temperature, SOIC-16 package compatibility, and tight 1% reference tolerance at 25°C.
Technical Context
The TSM104WIDG4 integrates four independent high-precision op-amps and a single programmable shunt voltage reference on one die. Each op-amp features input common-mode range extending to ground, low 7 µV/°C offset drift, and 85 dB CMRR at 25°C - enabling accurate differential sensing in noisy power rails.
The reference section operates as a 2.5 V bandgap source with external resistor divider programming, delivering 0.2 Ω typical dynamic impedance and stable 100 mA sink capability. Its cathode terminal (Pin 1) connects directly to the error amplifier output, forming a classic TL431-style control loop interface for isolated flyback or forward converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 30 V - supports direct operation from 5 V logic rails up to 24 V industrial bus voltages without level-shifting. |
| Input Offset Voltage (25°C) | 5 mV max - enables ±2.5 mV error budget in 5 V reference feedback paths for <±1% output regulation. |
| Reference Voltage Tolerance (25°C) | 1% max - ensures initial accuracy of programmed output voltage without trimming in production. |
| Supply Current per Channel | 375 µA typ at 5 V - allows low-power standby modes in battery-backed systems with minimal quiescent drain. |
| Unity-Gain Bandwidth | 0.9 MHz typ - sufficient for compensation of DC-DC converters switching up to ~100 kHz with phase margin >45°. |
| Output Voltage Swing | 0 V to VCC – 2 V - provides full-range drive into PNP transistor bases or optocoupler LEDs without headroom loss. |
| Reference Cathode Current | 0.5 mA min to 100 mA max - accommodates both low-current bias networks and high-gain optocoupler interfaces. |
Pinout & Package
Package: SOIC-16 (D package), 10.3 mm × 6.5 mm × 1.75 mm body, gull-wing leads, RoHS-compliant NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CATHODE) | Reference cathode | Sinks current from external error amplifier output; sets regulated voltage via resistor divider to ADJUST (Pin 13). |
| 2 (4IN−) | Op-amp 4 inverting input | Accepts feedback signal from output rail; paired with Pin 3 (4IN+) for differential sensing. |
| 3 (4IN+) | Op-amp 4 non-inverting input | Connects to stable reference or divided output; forms precision comparator stage with Pin 2. |
| 4 (4OUT) | Op-amp 4 output | Drives external transistor or optocoupler LED; capable of sourcing 20 mA or sinking 10 mA. |
| 5 (1OUT) | Op-amp 1 output | Primary error amplifier output; typically connected to CATHODE (Pin 1) for closed-loop regulation. |
| 6 (1IN−) | Op-amp 1 inverting input | Receives scaled output voltage; forms standard inverting error amplifier configuration with Pin 7. |
| 7 (1IN+) | Op-amp 1 non-inverting input | Biased to internal 2.5 V reference or external setpoint; establishes regulation threshold. |
| 8 (VCC−) | Negative supply rail | Ground reference for all op-amps and reference; must be connected even in single-supply configurations. |
| 9 (2OUT) | Op-amp 2 output | Available for auxiliary functions like overvoltage protection latch or current limit comparator. |
| 10 (2IN−) | Op-amp 2 inverting input | Configurable for current-sense amplifier input when used with shunt resistor and Pin 11. |
| 11 (2IN+) | Op-amp 2 non-inverting input | Provides offset-adjusted reference for current-limit threshold setting. |
| 12 (ADJUST) | Reference adjust terminal | Connects to cathode (Pin 1) and external resistor divider; sets final regulated output voltage. |
| 13 (VCC+) | Positive supply rail | Powers all op-amps and reference; accepts 3 V–30 V; decoupling capacitor required at Pin 13. |
| 14 (3OUT) | Op-amp 3 output | Supports secondary control loop, e.g., thermal foldback or soft-start ramp generation. |
| 15 (3IN−) | Op-amp 3 inverting input | Accepts ramp or temperature sensor signal for time-based or thermal compensation. |
| 16 (3IN+) | Op-amp 3 non-inverting input | Connected to fixed bias or filtered reference for comparator hysteresis or threshold setting. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated quad op-amp + shunt reference | Reduces BOM count by 5 components vs discrete implementation; eliminates inter-device gain/offset mismatches. |
| Input common-mode range includes GND | Enables direct sensing of 0 V-referenced signals (e.g., low-side current shunts) without level-shifting circuitry. |
| 2.5 V reference with 1% tolerance (25°C) | Permits accurate 3.3 V, 5 V, or 12 V output regulation using only two external resistors - no calibration needed. |
| 0.2 Ω reference dynamic impedance | Maintains <10 mV load regulation error across 0–100 mA cathode current variation in feedback loops. |
| 2-kV HBM ESD protection | Survives handling and board-level transients without external TVS diodes in industrial environments. |
| –40°C to 105°C operating range | Validated for under-hood automotive DC-DC modules and industrial motor drive power supplies. |
Applications
| Battery Charger Feedback | Switch-Mode Power Supply Regulation |
|---|---|
Use Scenario: Monitoring and regulating charging voltage for Li-ion or lead-acid battery packs in portable medical devices. IC Role / Device Role / Timing Role: TSM104WIDG4 acts as precision voltage error amplifier and reference source, comparing sensed battery voltage against 2.5 V internal reference. Use Value: Achieves ±0.5% charge voltage accuracy over temperature using only two external resistors and no trimming - critical for cell longevity. |
Use Scenario: Closed-loop output voltage control in isolated 48 V to 12 V flyback converters for telecom equipment. IC Role / Device Role / Timing Role: TSM104WIDG4's Op-Amp 1 drives optocoupler LED while its integrated reference replaces discrete TL431, simplifying primary-side feedback. Use Value: Reduces component count by 3 (TL431 + two op-amps), improves transient response due to matched op-amp offsets, and lowers layout sensitivity. |
| Linear Voltage Regulator Stability | Data-Acquisition System Reference |
Use Scenario: Improving line/load regulation and thermal stability in high-current LDOs for FPGA core supplies. IC Role / Device Role / Timing Role: TSM104WIDG4 serves as external error amplifier and precision reference for LDO pass transistor gate drive. Use Value: Enables <0.01%/°C output drift via low 7 µV/°C offset drift and tight reference tempco - surpassing most monolithic LDOs. |
Use Scenario: Providing stable 2.5 V reference and signal conditioning for 16-bit SAR ADC front-ends in test instrumentation. IC Role / Device Role / Timing Role: TSM104WIDG4's Op-Amps 2–4 buffer, filter, and level-shift analog inputs; its reference biases ADC reference pin. Use Value: Delivers <1 LSB INL error over temperature using single-chip solution - avoids mismatch between separate op-amp and reference ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431ACDR | Dedicated shunt reference only; no integrated op-amps - requires external amplifiers for error sensing. | Used where only reference function is needed; unsuitable for closed-loop regulation without added op-amps. | Select when reference accuracy (0.5% max) is prioritized over integration; adds ≥3 external components for full TSM104WIDG4 functionality. |
| LM324DR | Quad op-amp only; no integrated voltage reference - requires external 2.5 V reference like REF3025. | Applicable for general-purpose amplification; lacks programmable reference for regulation loops. | Choose when op-amp performance (e.g., higher GBW) matters more than integration; increases PCB area and calibration complexity. |
Compared with TL431ACDR and LM324DR, the TSM104WIDG4 uniquely combines both functions on one die - eliminating inter-IC offset errors, reducing layout parasitics in feedback paths, and cutting total solution cost by ~35% in volume SMPS designs.
Availability
TSM104WIDG4 is available at Aetrix Electronics and suitable for switch-mode power supplies, battery chargers, and linear voltage regulation requiring stable component supply across automotive, industrial, and telecom applications.
Supply support for TSM104WIDG4 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 90 years of innovation in high-reliability components.
The TSM104WIDG4 belongs to TI's precision analog power control product line, engineered specifically for integrated feedback and regulation in compact, cost-sensitive DC-DC converter and battery management systems.
FAQ
What is the maximum operating supply voltage for the TSM104WIDG4?
The TSM104WIDG4 supports a recommended operating supply voltage range of 3 V to 30 V between VCC+ (Pin 13) and VCC− (Pin 8). Absolute maximum rating is 36 V, but sustained operation above 30 V risks parametric shift and reduced reliability. For 24 V industrial systems, the TSM104WIDG4 operates fully within spec without derating.
How does the TSM104WIDG4's voltage reference differ from the TL431?
The TSM104WIDG4's reference shares the same 2.5 V bandgap core and cathode architecture as the TL431 but is co-integrated with four op-amps on one die. Unlike the TL431ACDR, the TSM104WIDG4 reference has 1% tolerance at 25°C (vs 0.5% for TL431AC), yet eliminates inter-die offset drift and matching errors - critical for high-accuracy regulation loops.
Can the TSM104WIDG4 operate from a single 5 V supply?
Yes, the TSM104WIDG4 functions correctly with VCC+ = 5 V and VCC− = GND. Its input common-mode range includes ground, and output swing reaches 0 V to 3 V (VCC – 2 V), supporting direct interfacing with 3.3 V logic and low-voltage MOSFET gates. Total supply current is 1.4 mA typ at this condition.
What is the purpose of the ADJUST pin (Pin 12) on the TSM104WIDG4?
Pin 12 (ADJUST) is the reference node for the internal 2.5 V bandgap. When connected with CATHODE (Pin 1) and an external resistor divider to VCC+, it programs the regulated output voltage using the formula VOUT = 2.5 V × (1 + R1/R2). This enables precise, resistor-set outputs from 2.5 V to 36 V without external references.
Is the TSM104WIDG4 pin-compatible with other TSM104 variants?
Yes, the TSM104WIDG4 shares identical SOIC-16 pinout and footprint with TSM104WAID, TSM104WIDR, and TSM104WAIDR. Differences are limited to grade (W vs WA), packaging (tube vs tape-and-reel), and electrical specs - not pin function or mechanical layout - allowing drop-in replacement in existing designs.
TSM104WIDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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-SOIC
TSM104WIDG4 FAQ
1.How can I place an order for TSM104WIDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TSM104WIDG4 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 TSM104WIDG4 reliable?
The price and inventory of TSM104WIDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSM104WIDG4 is usually 5 days.
3.What payment methods are accepted for TSM104WIDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSM104WIDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSM104WIDG4?
TSM104WIDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSM104WIDG4 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 TSM104WIDG4?
For technical support, including TSM104WIDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSM104WIDG4 requirements.
6.How does Aetrix verify that TSM104WIDG4 is sourced from the original manufacturer or authorized distributors?
All TSM104WIDG4 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 TSM104WIDG4 meets industry standards.
7.What is the process for return or replacement of TSM104WIDG4?
All TSM104WIDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TSM104WIDG4, 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 TSM104WIDG4 part is unused and in its original packaging.
Return procedure for TSM104WIDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSM104WIDG4 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…
