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Renesas M51660L#A10
- Part No.:
- M51660L#A10
- Manufacturer:
- Renesas
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
M51660L#A10.pdf
- Description:
- MOTOR CONTROLLER IC
- Quantity:
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- Shipping:
Inventory:519
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Product details
Overview
M51660L#A10 from Mitsubishi Electric is a dedicated servo motor control IC for radio-controlled (RC) systems, integrating voltage regulation, dual PNP transistor drive outputs, differential comparator, and pulse stretcher circuitry. It operates from 3.5–7 V supply, delivers 500 mA sink/200 mA source output current, and features 3.5 mA typical circuit current when outputs are off - enabling compact, stable RC servo positioning.
For engineers reviewing the M51660L#A10 datasheet, M51660L#A10 pinout, M51660L#A10 application in RC servo circuits, or M51660L#A10 equivalent for proportional control systems, this page provides verified functional specifications, validated pin roles, thermal derating data, dead band tuning parameters, and direct alternative options with documented interface differences.
Technical Context
The M51660L#A10 implements a closed-loop position control architecture using an internal triangular waveform generator (via external timing resistor/capacitor), error pulse generation, and dual independent output drivers for bidirectional motor control. Its built-in 2.6 V regulated supply powers internal logic and external potentiometer biasing.
It employs a differential comparator to compare servo position voltage (pin 1) against the triangular wave (pins 1/2), triggering flip-flop-based control logic that drives two external PNP transistors via pins 4 and 11. Dead band width (3.4–30 µs) is set by RDB on pin 8 and CS on pin 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.5–7 V - supports standard RC battery packs (4.8 V NiCd/NiMH, 6 V LiFe) without external regulators |
| Circuit Current (Output OFF) | 3.5 mA typ. - enables low-quiescent operation critical for battery-powered RC receivers |
| Output Sink Current | 500 mA max - sufficient to directly drive base of medium-power PNP transistors (e.g., 2SA695) |
| Internal Regulated Voltage | 2.45–2.6 V - powers position feedback potentiometer and stabilizes comparator reference |
| Dead Band Width | 3.4–30 µs - adjustable via RDB (pin 8) and CS (pin 2) to suppress mechanical jitter at neutral position |
| Operating Temperature | −20 to +75 °C - qualified for indoor/outdoor RC equipment environments |
| Thermal Derating | 5.5 mW/°C above 25 °C - defines safe power dissipation envelope up to 75 °C ambient |
Pinout & Package
Housed in a 14-pin molded plastic zig-zag inline package (ZIP), the M51660L#A10 uses through-hole mounting with 2.54 mm pitch and staggered lead layout optimized for compact RC receiver PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Servo Position Voltage Input | Analog input for potentiometer wiper; compared against internal triangle wave for position error detection |
| 2 | Timing Capacitor | Connects to external capacitor (e.g., 0.1 µF) to generate triangle wave for PWM timing |
| 3 | Timing Resistor | Sets constant-current charge rate for pin 2; 18 kΩ yields ~1.0 mA for standard 50 Hz servo frame |
| 4 | External PNP Transistor Drive (1) | Active-low output driving base of first PNP transistor for clockwise motor rotation |
| 5 | Input Pulse | Accepts positive RC pulse (≥3 V peak) carrying servo position command (e.g., 1–2 ms width) |
| 6 | Output (1) Feedback | Connects feedback resistor to pin 2 to stabilize triangle wave amplitude and frequency |
| 7, 14 | GND | Common ground reference for analog and digital sections; dual pins reduce ground impedance |
| 8 | Error Pulse Output | Generates pulse whose width equals position error; RDB sets dead band threshold |
| 9 | Output (2) | Second output driver - functionally identical to pin 4 but for counter-rotation control |
| 10 | Stretcher Input | Connects RC network to extend narrow error pulses for reliable transistor switching |
| 11 | External PNP Transistor Drive (2) | Active-low output driving base of second PNP transistor for counterclockwise rotation |
| 12 | Regulated Voltage Output | 2.6 V regulated supply for potentiometer bias and pulse stretcher reference |
| 13 | Supply Voltage (VCC) | Main power input; accepts 3.5–7 V with internal regulation and thermal protection |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent PNP drive outputs | Enables full H-bridge motor control using external transistors without additional logic or drivers |
| Integrated voltage regulator (2.6 V) | Eliminates need for external bias supply for position potentiometer and error circuitry |
| Adjustable dead band (3.4–30 µs) | Prevents motor hunting at neutral by suppressing response to sub-threshold position errors |
| Differential comparator with stable reference | Ensures consistent position detection across temperature (−20 to +75 °C) and supply variation |
| Protection against continuous "H" level input | Prevents latch-up or overheating during signal loss or receiver malfunction |
Applications
| RC Servo Receiver Module | Proportional Radio Control System |
|---|---|
Use Scenario: Compact PCB in 2.4 GHz RC receiver housing multiple servo channels. IC Role / Device Role / Timing Role: Core servo decoder and motor driver IC, converting PWM input pulses into bidirectional motor drive signals. Use Value: Integrates timing, regulation, and dual-drive functions in single ZIP package - reduces component count by ≥7 discrete parts per channel. | Use Scenario: Hobby-grade RC car or aircraft with analog proportional steering/throttle control. IC Role / Device Role / Timing Role: Position error processor and transistor driver, generating precise dead-band-limited motor actuation. Use Value: Adjustable dead band (via RDB/CS) eliminates servo jitter at center position without firmware changes. |
| Model Aircraft Flight Control | RC Boat Rudder/Elevator Actuator |
Use Scenario: Lightweight flight controller board for park-flyer drones or gliders requiring low-power, high-reliability actuation. IC Role / Device Role / Timing Role: Analog servo control IC interfacing between receiver and brushed DC motor via external PNP transistors. Use Value: 3.5 mA quiescent current extends battery life in intermittent-use applications like glider control surfaces. | Use Scenario: Waterproof rudder actuator in marine RC models exposed to humidity and vibration. IC Role / Device Role / Timing Role: Motor direction and speed controller using regulated 2.6 V reference for stable potentiometer feedback. Use Value: Internal voltage regulation maintains position accuracy despite battery voltage sag under load (3.5–7 V range). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar servo motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BA6686F | Single-output design; no integrated voltage regulator; requires external 5 V supply for logic | Lacks dual-drive capability and dead band adjustment - suited only for unidirectional or simplified servo topologies | Select BA6686F only if system already provides regulated 5 V and uses single-transistor motor drive. |
| LMC662CN | General-purpose dual op-amp; no built-in timing, regulation, or drive circuitry - requires full external design | Not a drop-in replacement; demands custom oscillator, comparator, and transistor driver stages | Choose LMC662CN only for fully custom servo designs where flexibility outweighs BOM and layout complexity. |
Compared with BA6686F and LMC662CN, the M51660L#A10 uniquely integrates dual PNP drive, internal 2.6 V regulation, and adjustable dead band - reducing external component count by >12 parts while maintaining RC-grade timing precision and thermal stability.
Availability
M51660L#A10 is available at Aetrix Electronics and suitable for RC servo receiver modules, proportional radio control systems, and model aircraft flight control applications requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for M51660L#A10 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
Mitsubishi Electric Corporation is a Japanese multinational specializing in power systems, industrial automation, and semiconductor solutions, with decades of leadership in analog and mixed-signal control ICs.
The M51660L#A10 belongs to Mitsubishi's legacy RC control IC product line, engineered specifically for analog proportional servo decoding and drive in hobby and light-industrial remote-control equipment.
FAQ
What is the recommended timing capacitor value for standard 50 Hz RC servo operation with M51660L#A10?
The recommended timing capacitor for standard 50 Hz operation is 0.1 µF, used with a 18 kΩ timing resistor on pin 3. This combination produces the required triangle wave frequency and ensures accurate pulse width decoding for 1–2 ms input commands. The M51660L#A10 datasheet confirms this value yields stable 50 Hz frame timing across −20 to +75 °C.
Can M51660L#A10 operate from a 6 V lithium iron phosphate (LiFePO₄) battery without external regulation?
Yes, the M51660L#A10 supports 3.5–7 V supply voltage, making it compatible with nominal 6 V LiFePO₄ batteries. Its internal voltage regulating circuit maintains stable 2.6 V logic supply and comparator reference regardless of input fluctuation within this range. No external regulator is needed for M51660L#A10 in such configurations.
How is dead band width adjusted on M51660L#A10, and what is its practical effect?
Dead band width on M51660L#A10 is set by a resistor (RDB) connected between pin 8 (Error Pulse Output) and ground, along with capacitor CS on pin 2. Typical RDB values range from 510 Ω to 2 kΩ, yielding 3.4–30 µs dead band. This prevents motor oscillation at neutral by ignoring small position errors - a key requirement for jitter-free RC servo holding torque.
Does M51660L#A10 include thermal protection, and how is power dissipation managed?
The M51660L#A10 specifies thermal derating of 5.5 mW/°C above 25 °C and absolute maximum power dissipation of 550 mW at 25 °C. While not labeled "thermal shutdown," its design limits junction temperature rise through controlled output current (500 mA sink) and internal regulation. Layout must observe recommended copper area and avoid enclosure trapping for M51660L#A10 reliability.
What external transistors are commonly paired with M51660L#A10, and why?
The M51660L#A10 datasheet references the 2SA695 PNP transistor in its application example. This device is selected for its 500 mA collector current rating, low saturation voltage, and compatibility with the M51660L#A10's 500 mA sink drive capability on pins 4 and 11 - ensuring full turn-on of the external PNP without added base resistors in basic configurations.
M51660L#A10 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:
- -
M51660L#A10 FAQ
1.How can I place an order for M51660L#A10 through Aetrix?
Please submit a Request for Quotation (RFQ) for M51660L#A10 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 M51660L#A10 reliable?
The price and inventory of M51660L#A10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M51660L#A10 is usually 5 days.
3.What payment methods are accepted for M51660L#A10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M51660L#A10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M51660L#A10?
M51660L#A10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M51660L#A10 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 M51660L#A10?
For technical support, including M51660L#A10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M51660L#A10 requirements.
6.How does Aetrix verify that M51660L#A10 is sourced from the original manufacturer or authorized distributors?
All M51660L#A10 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 M51660L#A10 meets industry standards.
7.What is the process for return or replacement of M51660L#A10?
All M51660L#A10 units undergo pre-shipment inspection (PSI). If there is an issue with M51660L#A10, 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 M51660L#A10 part is unused and in its original packaging.
Return procedure for M51660L#A10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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