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Analog Devices Inc./Maxim Integrated DS1050P-5/T&R
- Part No.:
- DS1050P-5/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1050P-5/T&R.pdf
- Description:
- IC OSC PROG TIMER 5KHZ 8USOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,239
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Product details
Overview
DS1050P-5/T&R from Maxim Integrated is a 5-bit programmable pulse-width modulator IC with 5kHz nominal output frequency, 2.7V–5.5V supply range, and 2-wire serial interface. It delivers adjustable PWM duty cycle (0% to 100% in 3.125% steps), operates from –40°C to +85°C, and targets LCD contrast control, power supply voltage adjustment, and battery charging current regulation.
For engineers reviewing the DS1050P-5/T&R datasheet, DS1050P-5/T&R pinout, DS1050P-5/T&R application, or DS1050P-5/T&R equivalent, this device supports I²C-compatible 2-wire bus communication at 100kHz/400kHz, offers shutdown mode (<1µA standby current), and provides full-on (100%) and standard 5-bit (0–96.88%) duty cycle control via addressable slave interface.
Technical Context
The DS1050P-5/T&R implements a fixed-frequency oscillator core generating 5kHz PWM output, with duty cycle controlled by an internal 5-bit register accessed via 2-wire serial protocol. Its slave-mode interface uses A0–A2 for hardware address selection and supports both Standard (100kHz) and Fast (400kHz) I²C modes.
It features dedicated shutdown and recall commands that place PWMO into high-impedance state (<1µA ICC) or restore prior duty cycle. Output swings rail-to-rail (0V to VCC), with absolute linearity ±0.5 LSB and relative linearity ±0.25 LSB across the full 5-bit range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 5kHz nominal; ±20% tolerance over temperature and voltage |
| Duty Cycle Range | 0% to 100% - 0–96.88% in 3.125% steps plus dedicated 100% "full-on" command |
| Supply Voltage | 2.7V to 5.5V - supports single-supply operation across 3.3V and 5V systems |
| Active Supply Current | 50µA typical - enables low-power embedded PWM control without burdening supply |
| Standby Current | ≤1µA - allows deep sleep during inactive periods with fast wake-up via I²C |
| Interface Speed | 100kHz / 400kHz - compatible with standard and fast-mode I²C buses |
| Operating Temp | –40°C to +85°C - qualified for industrial ambient environments |
Pinout & Package
DS1050P-5/T&R is housed in an 8-pin (118-mil) SOP package, pin-compatible with DS1050U-series variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Accepts 2.7V–5.5V; powers internal oscillator, logic, and output driver |
| GND | Ground reference | Return path for all internal currents and I/O logic thresholds |
| PWMO | PWM output terminal | Rail-to-rail square wave (0V to VCC); high-impedance in shutdown mode |
| SCL | Serial clock input | Asynchronous clock for I²C timing; supports 100kHz/400kHz operation |
| SDA | Serial data I/O | Open-drain bidirectional line; requires external pull-up resistor |
| A0, A1, A2 | Hardware slave address inputs | Set 3-bit device address (000–111); tied to VCC or GND for unique bus addressing |
Key Features
| Feature | Design Value |
|---|---|
| 5-bit programmable PWM | Enables precise 3.125% step resolution for analog-like control of brightness, voltage, or current |
| Dedicated 100% duty cycle command | Eliminates need for software workaround to achieve full-on output state |
| 2-wire (I²C-compatible) interface | Allows daisy-chaining up to 8 devices on one bus using A0–A2 address pins |
| Shutdown mode (<1µA) | Reduces system power consumption during idle periods without losing configuration |
| Rail-to-rail PWM output | Delivers maximum dynamic range without external level-shifting circuitry |
Applications
| LCD Contrast Control | DC-DC Converter Feedback |
|---|---|
Use Scenario: Adjusting contrast of character or segment LCD displays in portable instrumentation and industrial HMI panels. IC Role / Device Role / Timing Role: Generates variable-duty PWM signal to drive LCD bias network or external op-amp-based contrast amplifier. Use Value: Replaces mechanical potentiometer with digitally controllable, stable, and repeatable contrast setting across temperature. | Use Scenario: Fine-tuning feedback node voltage in buck/boost converter designs to regulate output voltage under varying load conditions. IC Role / Device Role / Timing Role: Provides programmable analog voltage reference via RC-filtered PWM output applied to error amplifier input. Use Value: Enables dynamic output voltage scaling without changing resistor dividers or requiring DAC peripherals. |
| Battery Charging Current Regulation | LED Brightness Control |
Use Scenario: Controlling gate voltage of external MOSFET in linear or switch-mode battery charger circuits for Li-ion or NiMH cells. IC Role / Device Role / Timing Role: Supplies adjustable PWM signal to set average current through sense resistor or charge FET gate driver. Use Value: Delivers accurate, temperature-stable current limit with 0.5 LSB absolute linearity-critical for safe charging profiles. | Use Scenario: Driving LED backlight or indicator arrays in consumer electronics and automotive dashboards. IC Role / Device Role / Timing Role: Generates dimming signal fed to constant-current LED driver IC or discrete transistor stage. Use Value: Achieves flicker-free dimming down to 0% with rail-to-rail output swing and minimal microcontroller resource usage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable PWM generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1050U-005 | Identical electrical specs and pinout; differs only in tape-and-reel packaging (no /T&R suffix) | No functional difference; suitable for same PCB layouts and firmware | Select DS1050U-005 when standard reel packaging is preferred over DS1050P-5/T&R's specific tape-and-reel format |
| MAX14827 | Higher integration: includes 4-channel PWM, 12-bit DAC, and SPI interface; 5V-only supply; larger 20-pin TQFN | Targets multi-output systems requiring synchronized PWM channels and analog outputs | Choose MAX14827 only when needing multiple independent PWM outputs or SPI interface compatibility |
Compared with DS1050U-005, DS1050P-5/T&R offers identical functionality in tape-and-reel form for automated assembly; versus MAX14827, it provides lower-cost, single-channel simplicity with smaller footprint and I²C compatibility-ideal for cost-sensitive, space-constrained designs requiring only one PWM output.
Availability
DS1050P-5/T&R is available at Aetrix Electronics and suitable for LCD contrast control, DC-DC converter feedback tuning, and battery charging current regulation requiring stable component supply and long-term industrial availability.
Supply support for DS1050P-5/T&R 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The DS1050 product line delivers compact, low-power, I²C-programmable PWM generators optimized for analog control tasks where MCU GPIO or DAC resources are constrained.
FAQ
What is the nominal output frequency of the DS1050P-5/T&R?
The DS1050P-5/T&R is factory-configured for a nominal 5kHz PWM output frequency. This value is fixed per variant and cannot be reprogrammed; other frequencies (1kHz, 10kHz, 25kHz) require different part numbers such as DS1050P-1/T&R or DS1050P-10/T&R. Frequency tolerance is ±20% over operating temperature and supply voltage ranges.
Does the DS1050P-5/T&R support full 0% to 100% duty cycle control?
Yes, the DS1050P-5/T&R supports 0% to 100% duty cycle. The standard 5-bit register provides 0% to 96.88% in 3.125% increments, and a dedicated "Set PWM Duty Cycle 100%" command enables true full-on output. This eliminates interpolation or software workarounds needed to achieve maximum output level.
How many DS1050P-5/T&R devices can share the same I²C bus?
Up to eight DS1050P-5/T&R devices can operate on a single 2-wire I²C bus. Each unit is assigned a unique 3-bit slave address via hardware pins A0, A1, and A2, which must be hardwired to VCC or GND. No external address decoding logic is required, enabling scalable multi-channel PWM control from one microcontroller.
What is the shutdown current consumption of the DS1050P-5/T&R?
The DS1050P-5/T&R draws ≤1µA in shutdown mode, verified at VCC = 3.0V to 5.0V with control pins driven to valid logic levels. In this state, the PWMO output enters high-impedance, eliminating load current while preserving no-voltage stress on downstream circuitry. Shutdown is activated via I²C command and recalled without reset.
Is the DS1050P-5/T&R pin-compatible with other DS1050 variants?
Yes, DS1050P-5/T&R shares identical 8-pin (118-mil) SOP pinout and electrical behavior with all DS1050U- and DS1050Z-series variants-including DS1050U-005 and DS1050Z-005. Differences are limited to packaging (SOP vs SOIC) and ordering suffixes (/T&R vs bulk); no PCB layout change is needed when substituting within the same frequency and package family.
DS1050P-5/T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Programmable Timer
- Count:
- -
- Frequency:
- 5kHz
- Voltage - Supply:
- 2.7V ~ 5.5V
- Current - Supply:
- 50 µA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-uMAX/uSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
DS1050P-5/T&R FAQ
1.How can I place an order for DS1050P-5/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1050P-5/T&R 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 DS1050P-5/T&R reliable?
The price and inventory of DS1050P-5/T&R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1050P-5/T&R is usually 5 days.
3.What payment methods are accepted for DS1050P-5/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1050P-5/T&R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1050P-5/T&R?
DS1050P-5/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1050P-5/T&R 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 DS1050P-5/T&R?
For technical support, including DS1050P-5/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1050P-5/T&R requirements.
6.How does Aetrix verify that DS1050P-5/T&R is sourced from the original manufacturer or authorized distributors?
All DS1050P-5/T&R 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 DS1050P-5/T&R meets industry standards.
7.What is the process for return or replacement of DS1050P-5/T&R?
All DS1050P-5/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1050P-5/T&R, 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 DS1050P-5/T&R part is unused and in its original packaging.
Return procedure for DS1050P-5/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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