My Inquiry
My Account
Microchip Technology HV9861ANG-G
- Part No.:
- HV9861ANG-G
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HV9861ANG-G.pdf
- Description:
- IC LED DRIVER CTRLR PWM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,887
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HV9861ANG-G from Microchip Technology is a patented average-mode constant-current LED driver IC operating in constant off-time mode, designed for high-voltage DC/DC and AC/DC LED lighting applications. It delivers ±3% LED current accuracy, supports 15–450V input, integrates 7.5V internal regulation, and provides hiccup-mode short-circuit protection with ambient operation from –40°C to +125°C.
For engineers reviewing the HV9861ANG-G datasheet, HV9861ANG-G pinout, HV9861ANG-G application, or HV9861ANG-G equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions for 16-lead SOIC, confirmed alternative options, and supply support for industrial LED driver development.
Technical Context
The HV9861ANG-G implements a fast open-loop average-current control architecture that eliminates peak-to-average error-unlike peak-current controllers such as the HV9910B-enabling accurate LED current regulation without loop compensation or high-side sensing. Its TOFF timer uses an external RT resistor (30kΩ–1MΩ) tied to GND, and it rejects inductor ripple effects on current accuracy.
It features dual dimming inputs: TTL-compatible PWM at PWMD and analog linear dimming at LD (0–1.5V), with gate disable thresholds at 150mV (shutdown) and 200mV (enable). Internal over-temperature shutdown triggers at 140°C with 20°C hysteresis, and UVLO activates at 6.45V with 500mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LED Current Accuracy | ±3% - enables precise luminance control without calibration in production LED systems. |
| Input Voltage Range | 15–450V DC - supports direct off-line AC/DC conversion without pre-regulation stages. |
| VDD Regulation | 7.5V (±0.25V) - powers internal circuitry and small external bias networks; bypassing ≥0.1μF low-ESR cap required. |
| TOFF Range | 8–48μs - set by RT resistor; determines switching frequency and inductor sizing for stable current regulation. |
| CS Reference Voltage | 270mV (typ) - sets LED current via external sense resistor (ILED = 0.27V / RCS). |
| Short-Circuit Threshold | 450mV at CS - triggers hiccup mode (650μs off-time) to prevent MOSFET saturation during output faults. |
| Operating Temp | –40°C to +125°C - qualified for outdoor, streetlight, and industrial LED driver environments. |
| GATE Drive Strength | 165mA sink/source - drives N-channel MOSFETs with QG <15nC above 100kHz or <25nC up to 100kHz. |
Pinout & Package
HV9861ANG-G is housed in a 16-lead narrow-body SOIC (NG) package, 9.90 × 3.90 mm, 1.27 mm pitch, RoHS-compliant (Pb-free matte tin).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-voltage input rail | Accepts 15–450V DC; powers internal linear regulator to generate VDD. |
| CS | Current sense input | Compares FET source voltage against 270mV reference; blanked for 140–290ns to reject noise. |
| GND | Power and signal ground | Common return for all internal circuits and power train; must connect to low-impedance ground plane. |
| GATE | MOSFET gate driver output | Drives external N-channel switch; 165mA drive strength, 30–50ns rise/fall times into 500pF. |
| PWMD | PWM dimming enable | TTL-compatible input: low = gate disabled, high = normal operation; internal 8.5–13.5μA pull-down. |
| VDD | Internal regulated supply | 7.5V output; must be bypassed with ≥0.1μF low-ESR capacitor to GND for stability. |
| LD | Linear dimming input | 0–1.5V analog control; overrides 270mV reference with VLD × 0.18; 150mV/200mV shutdown/enable thresholds. |
| RT | Off-time timing resistor | Resistor to GND sets TOFF (8–48μs); not connected to GATE-unlike HV9910B. |
Key Features
| Feature | Design Value |
|---|---|
| Average-mode current control | Eliminates peak-to-average error-no loop compensation needed and no dependency on inductance or switching frequency for current accuracy. |
| Constant off-time (COT) operation | Enables wide-input-voltage regulation stability; TOFF programmable via single RT resistor (30kΩ–1MΩ). |
| Dual dimming interface | Independent PWM (PWMD) and analog linear (LD) inputs allow flexible brightness control schemes including mixed-mode dimming. |
| Hiccup-mode short-circuit protection | Trips at 450mV on CS; enforces 650μs off-time to limit inductor current stair-stepping and prevent core saturation. |
| Integrated 7.5V regulator | Derives VDD directly from VIN (15–450V); eliminates need for external bias supply while supporting external circuitry up to 1mA. |
| Robust thermal protection | Shuts down at 140°C junction temperature with 20°C hysteresis-prevents damage during sustained overload or poor heatsinking. |
Applications
| Architectural LED Lighting | LED Street Lighting |
|---|---|
Use Scenario: Outdoor linear fixtures with long LED strings powered from 277VAC-derived DC bus. IC Role / Device Role / Timing Role: Constant-current controller regulating average inductor current in buck topology; operates at fixed off-time to maintain regulation across wide input voltage swings. Use Value: ±3% current accuracy ensures uniform luminance across fixture arrays; hiccup protection prevents catastrophic failure during moisture-induced shorts. | Use Scenario: High-power 150W–300W streetlight drivers using 400V DC bus derived from rectified line. IC Role / Device Role / Timing Role: Primary current regulator in isolated or non-isolated buck-based driver; manages GATE timing via RT-resistor-set TOFF for thermal efficiency. Use Value: 125°C ambient rating enables operation inside sealed, thermally constrained enclosures; VDD self-regulation simplifies auxiliary supply design. |
| LED Backlight for Commercial Displays | Industrial LED Signage |
Use Scenario: Large-format LCD backlights requiring smooth dimming and consistent brightness across 10+ series-connected LEDs. IC Role / Device Role / Timing Role: Average-current feedback controller with dual dimming inputs-PWMD for global brightness, LD for local zone control. Use Value: Fast open-loop response (<4 cycles to steady state) enables flicker-free PWM dimming; linear dimming allows analog brightness fine-tuning. | Use Scenario: Outdoor digital signage exposed to temperature extremes and voltage transients on 24–48V DC distribution rails. IC Role / Device Role / Timing Role: Constant-current source managing multiple parallel LED strings; uses CS sensing and GATE drive to regulate per-string current. Use Value: –40°C to +125°C operation ensures reliability in unconditioned enclosures; 450V absolute max VIN rating protects against load-dump transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HV9910B | Peak-current control; requires loop compensation; no built-in VDD regulator; supports constant-frequency mode. | Lacks ±3% accuracy and hiccup protection; less suitable for high-reliability outdoor lighting where regulation stability is critical. | Select HV9910B only if legacy design reuse or cost sensitivity outweighs accuracy and protection requirements. |
| HV9961 | Same average-mode architecture as HV9861A but lacks LD linear dimming input; identical TOFF and CS threshold specs. | Cannot implement analog dimming or mixed-mode schemes; limited to PWM-only brightness control in new designs. | Choose HV9961 when linear dimming is unnecessary and board space favors pin-count reduction. |
Compared with HV9910B, HV9861ANG-G improves LED current accuracy and eliminates compensation design effort; versus HV9961, it adds full linear dimming capability-making it the optimal choice for applications demanding both precision regulation and flexible brightness control.
Availability
HV9861ANG-G is available at Aetrix Electronics and suitable for architectural LED lighting, street lighting, commercial display backlighting, and industrial signage requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for HV9861ANG-G 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
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs, with ISO/TS-16949 certified manufacturing and global technical support.
The HV9861A product line delivers high-voltage LED driver controllers optimized for accuracy, reliability, and ease of implementation in off-line and high-input-voltage LED lighting systems.
FAQ
What is the primary function of the HV9861ANG-G in an LED driver circuit?
The HV9861ANG-G serves as an average-mode constant-current controller for buck-based LED drivers. It regulates LED current by sensing switch current at the CS pin and generating gate pulses with programmable off-time (via RT), achieving ±3% accuracy without loop compensation. Its integrated 7.5V regulator powers internal circuitry directly from 15–450V input, making HV9861ANG-G ideal for high-voltage DC/DC and AC/DC LED lighting applications.
How does the HV9861ANG-G differ from the HV9910B in terms of control architecture and performance?
The HV9861ANG-G uses patented average-current control, eliminating peak-to-average error inherent in the HV9910B's peak-current mode. This gives HV9861ANG-G ±3% LED current accuracy, superior line/load regulation, and no need for compensation components. HV9861ANG-G also integrates a 7.5V VDD regulator and hiccup-mode short-circuit protection-features absent in HV9910B-making HV9861ANG-G more robust for high-reliability LED lighting.
Can the HV9861ANG-G be used with both PWM and analog dimming simultaneously?
Yes-the HV9861ANG-G supports independent PWM dimming via the PWMD pin and analog linear dimming via the LD pin. When LD voltage is below 1.5V, it overrides the internal 270mV reference with VLD × 0.18, enabling true analog current scaling. The datasheet confirms "mixed-mode" dimming is possible by applying a pulsed signal below 1.5V to LD. This dual-path capability makes HV9861ANG-G uniquely suited for applications requiring both coarse (PWM) and fine (linear) brightness control.
What is the maximum continuous input voltage the HV9861ANG-G can handle in practice?
While the HV9861ANG-G has an absolute maximum VIN rating of 470V, continuous operation is thermally limited. For the 16-lead SOIC (NG) package with θJA = 83°C/W, drawing 3.0mA at 450V exceeds safe junction temperature at 25°C ambient. Practical continuous VIN is ~330V under typical conditions. To operate reliably at higher voltages (e.g., 430V), add a series Zener diode or resistor to divert power dissipation-confirmed in Microchip's DS20005333A, page 7. Always verify thermal design for your specific layout and load when using HV9861ANG-G near its voltage limits.
Is the HV9861ANG-G pin-compatible with other Microchip LED drivers?
Yes-HV9861ANG-G is explicitly pin-to-pin compatible with HV9910B and HV9961 in the 16-lead SOIC package, as stated in the datasheet: "HV9861A is pin-to-pin compatible with the HV9910B and HV9961, and can be used as a drop-in replacement... to improve LED current accuracy." However, note that RT must connect to GND (not GATE, as in HV9910B), and LD functionality is unique to HV9861A. This compatibility enables straightforward upgrades from HV9910B/HV9961 to HV9861ANG-G in existing layouts.
HV9861ANG-G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- DC DC Controller
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 15V
- Voltage - Supply (Max):
- 450V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- Analog, PWM
- Applications:
- Backlight, Lighting, Signage
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
HV9861ANG-G FAQ
1.How can I place an order for HV9861ANG-G through Aetrix?
Please submit a Request for Quotation (RFQ) for HV9861ANG-G 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 HV9861ANG-G reliable?
The price and inventory of HV9861ANG-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HV9861ANG-G is usually 5 days.
3.What payment methods are accepted for HV9861ANG-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HV9861ANG-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HV9861ANG-G?
HV9861ANG-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HV9861ANG-G 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 HV9861ANG-G?
For technical support, including HV9861ANG-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HV9861ANG-G requirements.
6.How does Aetrix verify that HV9861ANG-G is sourced from the original manufacturer or authorized distributors?
All HV9861ANG-G 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 HV9861ANG-G meets industry standards.
7.What is the process for return or replacement of HV9861ANG-G?
All HV9861ANG-G units undergo pre-shipment inspection (PSI). If there is an issue with HV9861ANG-G, 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 HV9861ANG-G part is unused and in its original packaging.
Return procedure for HV9861ANG-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HV9861ANG-G Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
