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Renesas M52461GP#DF0J
- Part No.:
- M52461GP#DF0J
- Manufacturer:
- Renesas
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
M52461GP#DF0J.pdf
- Description:
- MOTOR CONTROLLER IC
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
M52461GP#DF0J from Renesas Electronics is a dedicated servo motor controller IC for radio-controlled systems, integrating pulse stretcher, dead-band control, local oscillator, and four transistor driver outputs (two NPN, two PNP). It operates from 2.8–7.5 V, delivers regulated 2.5 V internal supply, and supports dead-band adjustment via external capacitor on pin CDB. Used in digital proportional RC servo systems.
For engineers reviewing the M52461GP#DF0J datasheet, M52461GP#DF0J pinout, M52461GP#DF0J application, or M52461GP#DF0J equivalent, key selection criteria include its 16-pin SSOP package, dual-output push-pull drive capability, ±0.2 V output saturation voltage at 20 mA, and fixed/adjustable pulse width generation for precise servo positioning.
Technical Context
The M52461GP#DF0J implements analog-based servo position control using an error-pulse comparator, one-shot multivibrator, and pulse stretcher circuitry to generate bidirectional drive pulses. Its internal voltage regulator (VREG) supplies stable 2.5 V ±0.15 V to external timing components, decoupling operation from supply fluctuations.
Timing is set by external RC networks: CL adjusts local triangular wave period (1.5 ms typ), CFT sets fixed driving pulse width (1.0 ms typ), CST controls stretched pulse gain (100× typ), and CDB configures dead-band width (up to 6.0 µs). Input accepts standard RC PWM signals with ≤500 ns rise/fall times.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.8–7.5 V - Supports common RC battery packs (3×AA, 2S LiPo) without external regulation. |
| VREG Output | 2.5 V ±0.15 V - Powers external timing resistors/capacitors with <0.2 %/V supply rejection. |
| Local Pulse Width | 1.5 ms typ - Sets base timing reference for position error detection and feedback loop stability. |
| Fixed Driving Pulse | 1.0 ms typ - Provides baseline actuation pulse independent of input signal jitter or noise. |
| Dead Band Width | Up to 6.0 µs - Adjustable via CDB capacitor to suppress small-position oscillations near target. |
| Output Saturation | 0.2–0.4 V at 20 mA - Ensures low-loss drive of external NPN/PNP transistor bases for efficient motor current switching. |
| Operating Temp | –20 to +75°C - Validated for indoor/outdoor RC use without thermal derating below 25°C ambient. |
Pinout & Package
Package: 16-pin SSOP (16P2E-A), 0.65 mm pitch, plastic body, JEDEC MS-013AC variant. Dimensions: 5.0 × 6.4 mm, 0.65 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VREG (Pin 1) | Internal regulated voltage source | Supplies stable 2.5 V to external potentiometer and pulse stretcher resistor; must be decoupled locally. |
| CST (Pin 2) | Pulse stretcher timing node | Connects RC network defining stretched pulse gain (100× typ); determines response amplification. |
| CDB (Pin 3) | Dead-band capacitor terminal | Adjusts null zone width (1.0–6.0 µs) to prevent servo hunting near center position. |
| INPUT (Pin 4) | PWM command input | Accepts standard RC servo pulses (0.5–2.5 ms); logic high threshold ≥2.0 V. |
| RT (Pin 5) | Constant current reference | Sets 100 µA current source (with 18 kΩ) for CL timing capacitor charging rate. |
| CL (Pin 6) | Local oscillator timing | Charged by RT current to generate 1.5 ms triangular waveform for error comparison. |
| N.C. (Pin 7) | No connection | Internally unconnected; must remain floating or grounded per layout best practice. |
| POT (Pin 8) | Servo position feedback | Connects to potentiometer wiper; compares actual shaft angle against INPUT command. |
| GND (Pin 9) | Signal and power ground | Common return for all analog/digital circuits; requires low-impedance PCB plane. |
| OUT1/OUT3 | NPN transistor drivers | Drive bases of external NPN transistors for forward/reverse motor current paths. |
| OUT2/OUT4 | PNP transistor drivers | Drive bases of external PNP transistors to complete H-bridge motor control topology. |
| N.C. (Pin 14) | No connection | Internally unconnected; no external connection required. |
| VCC (Pin 15) | Main supply input | Requires ≥10 µF bulk capacitance; absolute max 9.0 V to avoid latch-up. |
| CFT (Pin 16) | Fixed pulse timing | Defines 1.0 ms fixed-width drive pulse via external capacitor; sets minimum actuation duration. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-mode pulse generation | Generates both fixed-width (CFT) and error-stretched (CST) pulses for robust position correction under load variation. |
| On-chip voltage regulation | Delivers 2.5 V ±0.15 V to external timing components, eliminating need for separate LDO in RC servo designs. |
| Adjustable dead-band control | Capacitor-programmable dead-band (CDB) enables tuning of positional null zone to match mechanical backlash or gear slop. |
| Four independent output drivers | Two NPN (OUT1/OUT3) and two PNP (OUT2/OUT4) outputs support full H-bridge transistor interface without external level shifters. |
| Input timing tolerance | Accepts input rise/fall times up to 500 ns - compatible with standard 5 V CMOS/TTL RC receivers without buffering. |
Applications
| RC Model Aircraft Control | RC Model Car Steering |
|---|---|
Use Scenario: Precise angular control of elevator, rudder, and aileron servos in 2.4 GHz spread-spectrum RC aircraft systems. IC Role / Device Role / Timing Role: Servo motor controller generating bidirectional H-bridge drive pulses based on PWM input and potentiometer feedback. Use Value: Enables sub-degree positioning accuracy and jitter-free hold torque via adjustable dead-band and regulated timing references. | Use Scenario: High-reliability steering actuation in 1:10 scale off-road RC vehicles exposed to vibration, dust, and temperature swings. IC Role / Device Role / Timing Role: Core servo control IC converting receiver PWM into amplified, temperature-stable drive signals for brushed DC motors. Use Value: Maintains consistent pulse width accuracy across –20 to +75°C ambient due to internal VREG and low-drift RC timing architecture. |
| RC Boat Throttle Control | RC Robot Joint Actuation |
Use Scenario: Waterproof servo implementation for marine throttle linkage requiring corrosion-resistant, low-power actuation. IC Role / Device Role / Timing Role: Low-quiescent-current (5–10 mA) servo controller enabling extended runtime on 2-cell LiPo batteries. Use Value: Delivers 0.2 V output saturation at 20 mA sink current, minimizing heat generation in sealed servo housings. | Use Scenario: Multi-axis joint control in hobbyist robotics platforms where compact size and predictable timing are critical. IC Role / Device Role / Timing Role: Integrated servo controller providing synchronized, capacitor-tuned pulse widths for coordinated limb movement. Use Value: Local pulse (1.5 ms) and fixed pulse (1.0 ms) timing enable deterministic motion sequencing without microcontroller intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar servo motor controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BA6686F | Single-output driver; lacks pulse stretcher, dead-band control, and VREG; requires external 5 V supply. | Targeted at simpler on/off solenoid or relay control-not closed-loop proportional servo positioning. | Select only if design uses external timing and regulation, and does not require dead-band tuning or error stretching. |
| HA17358 | General-purpose dual op-amp; no integrated servo logic, timing blocks, or output drivers-requires full discrete implementation. | Used in custom servo designs with microcontroller-based PWM generation and external H-bridge FETs. | Choose when full design flexibility is needed and BOM cost is secondary to functional customization. |
Compared with BA6686F and HA17358, the M52461GP#DF0J provides a fully integrated, capacitor-programmable servo control solution with on-chip regulation and dual-mode pulse generation-reducing component count by >12 parts and eliminating timing calibration effort in RC servo modules.
Availability
M52461GP#DF0J is available at Aetrix Electronics and suitable for RC model aircraft control, RC model car steering, and RC boat throttle control requiring stable component supply and long-term obsolescence management.
Supply support for M52461GP#DF0J 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
Renesas Electronics Corporation is a Japanese semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.
The M52461GP#DF0J belongs to Renesas' legacy analog servo controller product line, designed specifically for radio-controlled proportional systems requiring compact, low-cost, and thermally stable closed-loop motor positioning.
FAQ
What is the recommended supply voltage range for the M52461GP#DF0J?
The M52461GP#DF0J operates over a supply voltage range of 2.8 V to 7.5 V, with absolute maximum rating at 9.0 V. This range supports common RC battery configurations including 3×AA alkaline (4.5 V nominal) and 2S LiPo (7.4 V nominal). Operation outside this range may cause malfunction or permanent damage to the M52461GP#DF0J.
Does the M52461GP#DF0J include an internal voltage regulator?
Yes, the M52461GP#DF0J integrates an internal voltage regulator that outputs 2.5 V ±0.15 V at pin VREG. This regulated supply powers external timing components (e.g., CL, CST, CFT) and ensures stable operation across varying input voltages. The M52461GP#DF0J's VREG exhibits <0.2 %/V supply rejection, making it suitable for noisy RC power environments.
How is dead-band width adjusted on the M52461GP#DF0J?
Dead-band width on the M52461GP#DF0J is adjusted by connecting an external capacitor to pin CDB (Pin 3). Capacitor values from 0.01 µF to 0.1 µF yield dead-band widths from 1.0 µs to 6.0 µs. This allows mechanical backlash compensation in gear trains without software tuning. The M52461GP#DF0J's dead-band circuit is analog and independent of microcontroller firmware.
What type of external transistors are driven by the M52461GP#DF0J outputs?
The M52461GP#DF0J drives external bipolar junction transistors: OUT1 and OUT3 are designed for NPN transistors, while OUT2 and OUT4 drive PNP transistors. Each output delivers ≤40 mA sink/source current with 0.2–0.4 V saturation voltage at 20 mA, enabling direct base drive of medium-power BJTs in H-bridge configurations for RC servo motors.
Is the M52461GP#DF0J suitable for new designs?
The M52461GP#DF0J is marked "Not recommend for new design" in its official Renesas documentation. While fully functional and supported for legacy repair and continuity, Renesas advises evaluating modern alternatives for new development. Aetrix Electronics maintains inventory and technical support for the M52461GP#DF0J to serve existing RC servo production and maintenance programs.
M52461GP#DF0J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- -
- Output Configuration:
- -
- Interface:
- -
- Technology:
- -
- Step Resolution:
- -
- Applications:
- -
- Current - Output:
- -
- Voltage - Supply:
- -
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
M52461GP#DF0J FAQ
1.How can I place an order for M52461GP#DF0J through Aetrix?
Please submit a Request for Quotation (RFQ) for M52461GP#DF0J 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 M52461GP#DF0J reliable?
The price and inventory of M52461GP#DF0J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M52461GP#DF0J is usually 5 days.
3.What payment methods are accepted for M52461GP#DF0J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M52461GP#DF0J transactions.
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4.How is shipping managed for M52461GP#DF0J?
M52461GP#DF0J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M52461GP#DF0J 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 M52461GP#DF0J?
For technical support, including M52461GP#DF0J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M52461GP#DF0J requirements.
6.How does Aetrix verify that M52461GP#DF0J is sourced from the original manufacturer or authorized distributors?
All M52461GP#DF0J 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 M52461GP#DF0J meets industry standards.
7.What is the process for return or replacement of M52461GP#DF0J?
All M52461GP#DF0J units undergo pre-shipment inspection (PSI). If there is an issue with M52461GP#DF0J, 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 M52461GP#DF0J part is unused and in its original packaging.
Return procedure for M52461GP#DF0J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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