PIC16HV785-E/ML - 8-Bit 20MHz 3.5KB Flash MCU with HV Shunt Reg | Microchip
MPN: PIC16HV785-E/ML ✓ فعالPIC16HV785-E/ML جائزہ
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path and a Harvard or von Neumann memory architecture; the PIC16 family belongs to Microchip's PIC mid-range lineup and sits at the foundation of the company's product hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Mid-range PIC MCUs are widely used in cost- and power-sensitive embedded designs because they combine deterministic instruction execution, low quiescent current, and rich on-chip peripherals in small packages.
Key features of the PIC16HV785 include two on-chip op-amps suited for current sensing in switch-mode power supplies, two high-speed comparators for cycle-by-cycle current limiting, an 8-bit ADC with 12 channels, a Capture/Compare/PWM (CCP) module plus an Enhanced CCP (ECCP), and the aforementioned dual-phase asynchronous-feedback PWM generator. The -E temperature grade spans -40 C to +125 C, supporting industrial and harsh-environment deployments.
Architecturally, the device uses a RISC-style 14-bit instruction set with 35 single-word instructions and a two-stage pipeline, achieving near-1 MIPS/MHz throughput. The on-chip shunt regulator sources the core VDD from a high-voltage bus through an external resistor, allowing the MCU to operate directly from rectified mains or battery stacks.
Typical applications include primary-side control of AC/DC and DC/DC switch-mode power supplies (SMPS), LED lighting drivers with analog dimming, battery chargers, smart sensors, and motor-control auxiliary circuits. The integrated op-amps are commonly configured for primary-side current sensing, while the dual comparators implement over-current protection (OCP).
When designing with the PIC16HV785-E/ML, engineers should size the HV shunt resistor to limit inrush current, ensure the EP thermal pad is soldered for proper dissipation, and reserve the I2C/SPI/UART pins carefully because some peripherals share the same I/O. The QFN-20 (4x4) footprint is among the smallest in the mid-range PIC family, allowing direct drop-in reuse of layouts originally designed for PIC16F785 or PIC16HV785-I/ML variants.
This page synthesizes distributor pricing, parametric alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides, including a drop-in replacement analysis for engineers facing allocation issues on this specific MPN.
کے لیے ڈراپ اِن متبادل PIC16HV785-E/ML — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16HV785-E/ML (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف ADC, Package, Core Architecture, PWM Channels, Timers.
PIC16HV785-I/ML
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16HV785T-I/ML
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F785-I/ML
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F785-E/ML
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16HV785-E/SS
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16HV785-E/ML زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC 16-bit mid-range 8-bit MCU (14-bit instruction word) |
| Program Memory | 3.5 KB Flash (2K x 14) |
| RAM | 128 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 20 MHz |
| Operating Voltage (VDD) | 2.0 V to 5.5 V |
| HV Shunt Regulator Input Range | 3.5 V to 15 V (typical) |
| I/O Pins | 18 |
| ADC | 8-bit, 12 channels |
| On-Chip Op-Amps | 2 |
| On-Chip Comparators | 2 high-speed |
| PWM Channels | ECCP + 2-phase asynchronous-feedback PWM generator |
| Temperature Grade (E suffix) | -40 C to +125 C (industrial extended) |
| پیکیج | 20-pin QFN (4x4 mm) with exposed pad |
| ماؤنٹنگ ٹائپ | Surface Mount |
| RoHS اسٹیٹس | Compliant |
| Instruction Set | 35 single-word instructions, 14-bit wide |
| Timers | Timer0, Timer1, Timer2 |
| Communication Peripherals | AUSART, SSP (I2C/SPI) |
PIC16HV785-E/ML پن کنفیگریشن
| پن 1 | RA0/AN0/ULPWU — Port A bit 0 / Analog input 0 / Ultra-low-power wake-up |
| پن 2 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| پن 3 | RA2/AN2 — Port A bit 2 / Analog input 2 |
| پن 4 | RA3/AN3 — Port A bit 3 / Analog input 3 |
| پن 5 | RA4/AN4 — Port A bit 4 / Analog input 4 |
| پن 6 | RA5/AN5 — Port A bit 5 / Analog input 5 |
| پن 7 | VSS — Ground reference |
| پن 8 | RA7/OSC1/CLKIN — Port A bit 7 / Oscillator input / External clock |
| پن 9 | RA6/OSC2/CLKOUT — Port A bit 6 / Oscillator output / Clock out |
| پن 10 | RC0 — Port C bit 0 |
| پن 11 | RC1 — Port C bit 1 |
| پن 12 | RC2 — Port C bit 2 |
| پن 13 | RC3 — Port C bit 3 |
| پن 14 | RC4 — Port C bit 4 |
| پن 15 | RC5 — Port C bit 5 |
| پن 16 | RC6 — Port C bit 6 |
| پن 17 | RC7 — Port C bit 7 |
| پن 18 | VDD — Positive supply (regulated 2.0-5.5 V) |
| پن 19 | HV — High-voltage shunt regulator input (3.5-15 V) |
| پن 20 | RB7 — Port B bit 7 |
عام استعمالات
PIC16HV785-E/ML کے لیے موزوں ہے 6 ایپلیکیشنs: Primary-Side AC/DC SMPS Controller, LED Lighting Driver with Analog Dimming, Battery Charger Controller, Industrial Sensor Signal Conditioner, Brushless DC (BLDC) Motor Auxiliary Controller, Smart Sensor and IoT Edge Node.
Primary-Side AC/DC SMPS Controller
The PIC16HV785-E/ML's integrated high-voltage shunt regulator accepts 3.5-15 V from a rectified mains rail, eliminating an external LDO. The two on-chip op-amps are typically configured for primary-side current sensing via a sense resistor in the MOSFET source return, while the dual high-speed comparators implement cycle-by-cycle over-current protection. The 2-phase asynchronous-feedback PWM generator drives a half-bridge or push-pull MOSFET pair at fixed frequency with programmable dead time. With 3.5 KB Flash and 128 bytes RAM, the MCU runs the typical state-machine control firmware plus a soft-start ramp and brown-out recovery for adapters under 75 W.
تجویز کردہ
LED Lighting Driver with Analog Dimming
LED drivers from 5 W to 50 W commonly use the PIC16HV785-E/ML to combine PFC plus constant-current regulation in a single chip. The HV shunt regulator lets the MCU run directly from 110/230 V rectified mains, the ECCP module generates the switching frequency for the buck or flyback converter, and the on-chip op-amp closes the average-current loop through a sense resistor. The 12-channel 8-bit ADC reads both the dimming input (0-10 V or DALI) and the LED string current, enabling smooth analog dimming down to 1%. Extended -40/+125 C operation supports outdoor and industrial luminaires.
تجویز کردہ
Battery Charger Controller
Sealed lead-acid (SLA) and lithium-ion battery chargers up to 50 W use the PIC16HV785-E/ML for CC/CV control, temperature monitoring, and termination logic. The HV shunt regulator accepts 12-24 V adapter rails directly, the dual op-amps sense both charge current and battery voltage, and the comparator inputs handle NTC thermistor monitoring for safety cut-off. The ECCP drives a synchronous buck or flyback power stage with programmable frequency. The 256-byte EEPROM stores charge profiles for different battery chemistries, while the AUSART port enables diagnostic logging to a host MCU during production test.
تجویز کردہ
Industrial Sensor Signal Conditioner
Bridge sensors, load cells, and 4-20 mA loop transmitters use the PIC16HV785-E/ML as an integrated analog front-end plus microcontroller. The two on-chip op-amps provide differential gain for the bridge and a reference buffer for excitation, the 12-channel ADC digitizes at 8-bit resolution sufficient for industrial process monitoring, and the AUSART/SSP peripherals push the digital reading to a PLC or HMI. The HV shunt input (3.5-15 V) lets the board power from a 24 V industrial rail without a separate regulator. The extended -40/+125 C temperature grade supports factory-floor deployment.
تجویز کردہ
Brushless DC (BLDC) Motor Auxiliary Controller
Small BLDC fans, pumps, and appliance motors use the PIC16HV785-E/ML as the housekeeping and protection MCU alongside a dedicated gate driver. The ECCP generates a 6-step commutation reference for an external three-phase driver, the comparators monitor back-EMF or shunt current for sensorless commutation timing, and the op-amps buffer the analog speed-command input (PWM or 0-10 V). The HV shunt regulator allows the board to run from 12-24 V motor supply rails directly. Industrial extended temperature grade supports appliance and light-industrial motor applications.
تجویز کردہ
Smart Sensor and IoT Edge Node
Low-power IoT edge nodes for HVAC, building automation, and asset tracking use the PIC16HV785-E/ML as the sensor interface plus local controller. The 12-channel ADC reads temperature, humidity, occupancy, and voltage monitoring, the SSP port connects to a Wi-Fi or LoRa module, and the ECCP can drive a buzzer or small solenoid. The HV shunt regulator accepts 5-15 V from a battery stack or USB-boost rail, simplifying power tree design. With 3.5 KB Flash, the MCU runs a small RTOS or state machine plus local calibration tables, and the extended temperature grade supports outdoor enclosures.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16HV785-E/ML — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16HV785-I/ML | PIC16HV785T-I/ML | PIC16F785-I/ML | PIC16F785-E/ML | PIC16HV785-E/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-QFN (4x4) | 20-QFN (4x4) - same | 20-QFN (4x4) - same | 20-QFN (4x4) - same | 20-QFN (4x4) - same | 20-SSOP - different footprint |
| Program Memory | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash | 3.5 KB Flash |
| Maximum CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| HV Shunt Regulator | Yes (3.5-15 V) | Yes (3.5-15 V) | Yes (3.5-15 V) | No (external LDO required) | No (external LDO required) | Yes (3.5-15 V) |
| Temperature Grade | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +125 C (E) |
| On-Chip Op-Amps | 2 | 2 | 2 | 2 | 2 | 2 |
| ADC Channels | 12 | 12 | 12 | 12 | 12 | 12 |
| Approx. Unit Price @ 1k | $2.18 | $2.10 (lower, no E-grade) | $2.10 | $1.95 (lower, no HV reg) | $1.95 | $2.30 (SSOP slightly higher) |
اہم امتیازی خصوصیات
- Integrated high-voltage shunt regulator eliminates external LDO (بمقابلہPIC16F785-I/ML)
- Extended -40/+125 C temperature grade for harsh environments (بمقابلہPIC16HV785-I/ML)
- Compact 20-QFN (4x4 mm) footprint for space-constrained designs (بمقابلہPIC16HV785-E/SS)
ڈیزائن نوٹس
Estimated: The HV shunt regulator requires an external current-limiting resistor between the high-voltage rail (3.5-15 V) and the HV pin. For a 12 V input and 5 mA MCU consumption, a 1.5 kohm resistor with 0.25 W rating is typical. Decouple VDD with 100 nF ceramic plus 10 uF tantalum placed within 5 mm of the VDD pin to suppress switching noise from the on-chip PWM. Do not exceed 15 V at the HV pin; transient suppression (TVS) is recommended when driving from rectified mains.
The 20-QFN (4x4) package requires the exposed pad (EP) to be soldered to a copper pour on the PCB for proper thermal dissipation. Use at least 100 mm^2 of 1 oz copper on the top layer, with multiple thermal vias (0.3 mm drill, 1 mm pitch) connecting to an internal ground plane. Without proper EP soldering, theta_JA rises above 150 C/W and the device may exceed maximum junction temperature at full CPU load.
Keep the HV shunt resistor trace short and away from sensitive analog op-amp inputs. Route the two op-amp output traces symmetrically and use a ground guard ring around high-impedance analog inputs to reduce leakage and noise pickup. Place the 32.768 kHz or 20 MHz crystal within 5 mm of the OSC1/OSC2 pins with a local ground plane; keep digital switching traces away from the crystal area to avoid injection-locking or jitter.
Common pitfalls: (1) Forgetting the HV shunt resistor and connecting the HV pin directly to the input rail will exceed the 15 V absolute maximum. (2) Using the on-chip op-amp output to drive low-impedance loads (< 2 kohm) causes output-stage distortion. (3) Programming pins ICSPCLK/ICSPDAT are shared with RB6/RB7; do not populate pull-down resistors on these pins if in-circuit serial programming is required. (4) The ECCP and 2-phase PWM share Timer2; switching modes requires a clean disable-modify-enable sequence.
تعمیل کی معلومات
RoHS and REACH compliance per Microchip product declaration; not AEC-Q100 qualified (the -E suffix denotes extended temperature, not automotive qualification). Halogen-free per JESD709.
