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Microchip Technology HV9911NG-G
- Part No.:
- HV9911NG-G
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HV9911NG-G.pdf
- Description:
- IC LED DRIVER CTRLR PWM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:266
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Product details
Overview
HV9911NG-G from Microchip Technology is a switch-mode LED driver IC designed for single-switch DC/DC topologies (buck, boost, buck-boost, SEPIC), featuring closed-loop output current control, 250 V input capability, internal 7.75 V linear regulator, and 2% accurate 1.25 V reference. It delivers ±0.2 A/–0.4 A gate drive, programmable MOSFET current limit, and supports RGB backlight and battery-powered LED lamp applications.
For engineers reviewing the HV9911NG-G datasheet, HV9911NG-G pinout, HV9911NG-G application, or HV9911NG-G equivalent, key selection considerations include its 100 kHz typical oscillator frequency, 16-pin SOIC package with high-side current sensing support, OVP/short-circuit latched fault protection, and TTL-compatible PWM dimming up to several kHz.
Technical Context
The HV9911NG-G implements peak current-mode control with programmable slope compensation and an internal 1 MHz transconductance amplifier for precise current regulation. Its dual-mode operation-constant frequency (via RT-to-GND) or constant off-time (via RT-to-GATE)-enables flexible topology adaptation across buck, boost, SEPIC, and buck-boost converters.
It integrates a 250 V input linear regulator powering internal circuits and external bias, a 100 ns leading-edge blanking circuit on CS, and synchronized multi-IC operation via the open-drain SYNC pin. Fault detection triggers latched shutdown of the gate driver and pulls FAULT low, requiring power recycle for reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | –0.5 V to +250 V at VIN; enables direct connection to high-voltage DC rails without pre-regulation |
| Oscillator Frequency | 100 kHz typical (RT = 909 kΩ); sets switching period for stable current regulation in constant-frequency mode |
| Reference Voltage | 1.25 V ±2% (0°C to +85°C); provides precision current setpoint for IREF and OVP threshold calibration |
| Gate Drive Capability | +0.2 A source / –0.4 A sink; drives high-power N-channel MOSFETs with 50 ns rise / 25 ns fall times (1 nF load) |
| Current Sense Blanking | 100 ns minimum; suppresses false turn-off during MOSFET turn-on current spike |
| Fault Response Time | <250 ns propagation delay; ensures rapid shutdown during output short-circuit events |
| Operating Temperature | –40°C to +85°C ambient; validated for industrial and automotive interior lighting environments |
Pinout & Package
HV9911NG-G is housed in a 16-lead SOIC package with exposed pad (RoHS-compliant, JEDEC MS-012AC). Pin layout supports high-voltage isolation between VIN and low-voltage control pins, with GND pin placement optimized for current-sense return path integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-voltage input | Connects directly to 250 V DC supply; powers internal linear regulator |
| VDD | Internal supply rail | 7.75 V regulated output; powers all internal blocks and external REF-bypass cap |
| GATE | Power FET driver output | ±0.2 A/–0.4 A push-pull gate driver; interfaces directly with N-channel MOSFET gate |
| GND | Signal and power return | Common reference for CS, COMP, FAULT, and current-sense resistor return path |
| CS | Current sense input | High-side current sensing node with 100 ns blanking; connects to source of sense resistor |
| SC | Slope compensation | Programmable ramp injection for stability in >50% duty-cycle constant-frequency operation |
| RT | Oscillator timing | Selects operating mode: RT-to-GND = constant frequency; RT-to-GATE = constant off-time |
| SYNC | Multi-IC synchronization | Open-drain I/O enabling peer-to-peer or master-clock locking of multiple HV9911NG-G units |
| FDBK | Current feedback input | Connects to current-sense resistor; feeds transconductance amplifier for closed-loop regulation |
| IREF | Current reference input | Setpoint voltage (0–1.25 V) determining regulated LED current magnitude |
| COMP | Compensation node | Connects external RC network for loop stability; output of transconductance amplifier |
| PWMD | PWM dimming enable | TTL-compatible input (0–0.8 V low, ≥2 V high); controls gate output and FAULT state |
| OVP | Overvoltage protection | Resistive divider input; trips shutdown when voltage exceeds 1.25 V threshold |
| FAULT | Fault status output | Open-drain active-low signal indicating OVP or short-circuit; used to drive external disconnect FET |
| REF | Internal reference output | 1.25 V ±2% buffered reference; supplies CLIM, OVP, and external current-setting dividers |
| CLIM | Programmable current limit | External resistor divider from REF sets peak inductor current limit during undervoltage/overload |
Key Features
| Feature | Design Value |
|---|---|
| Single-switch topology flexibility | Supports buck, boost, buck-boost, and SEPIC configurations using same IC and gate driver |
| Integrated high-voltage regulator | Eliminates need for external bias supply; operates from 9–250 V DC at VIN with 7.75 V VDD output |
| Latched fault protection | OVP and short-circuit conditions force FAULT low and disable GATE until power cycle resets flip-flop |
| Programmable slope compensation | Enables stable peak-current control in constant-frequency mode for duty cycles >50% |
| TTL-compatible PWM dimming | Accepts 0–100% duty cycle signals up to several kHz; synchronizes dimming with gate switching |
| Transconductance amplifier | 1 MHz GBW, 435 µA/V gm; provides fast, accurate closed-loop current regulation with tri-state output |
Applications
| RGB Backlight Control | Battery-Powered LED Lamps |
|---|---|
Use Scenario: Driving independent red, green, and blue LED strings in LCD TV or monitor backlights from a 12–24 V DC supply. IC Role / Device Role / Timing Role: Constant-current controller regulating each string's output via separate IREF inputs and synchronized PWM dimming. Use Value: Enables precise color balance and flicker-free dimming across wide brightness range while maintaining >90% efficiency in boost configuration. | Use Scenario: Portable LED work lights or emergency lamps powered by 3.7 V Li-ion or 12 V lead-acid batteries. IC Role / Device Role / Timing Role: Buck-mode LED driver delivering stable current despite battery voltage sag from 4.2 V down to 3.0 V. Use Value: Extends runtime through high-efficiency conversion and maintains consistent light output via closed-loop current regulation. |
| Industrial Status Lighting | Architectural Accent Lighting |
Use Scenario: DIN-rail mounted indicator panels in factory automation systems requiring reliable, long-life illumination. IC Role / Device Role / Timing Role: Boost converter driving 24 V LED arrays from 12 V DC control bus with OVP and short-circuit latch protection. Use Value: Ensures fail-safe operation in unattended environments; FAULT pin triggers PLC alarm on fault condition. | Use Scenario: Low-profile LED strips for retail display or museum lighting powered from 24 V AC/DC adapters. IC Role / Device Role / Timing Role: SEPIC-based driver providing non-inverting output with wide input range (18–36 V) and smooth 0–100% PWM dimming. Use Value: Delivers ripple-free current and eliminates audible noise from inductor saturation, critical for quiet indoor spaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ3367-AEC1 | Automotive-grade, integrated 3.5 A MOSFET, 40 V max input, no internal HV regulator | Requires external HV pre-regulator for >40 V inputs; suited for 12 V automotive LED modules | Choose MPQ3367-AEC1 only if operating below 40 V and automotive qualification (AEC-Q100) is mandatory |
| LM3410XMY/NOPB | 36 V max input, integrated 1.5 A MOSFET, no programmable current limit or SYNC pin | Limited to low-power buck-only designs; lacks HV9911NG-G's topology flexibility and multi-IC sync capability | Choose LM3410XMY/NOPB for cost-sensitive, low-input-voltage (<36 V), single-string applications without sync needs |
Compared with MPQ3367-AEC1 and LM3410XMY/NOPB, HV9911NG-G uniquely supports direct 250 V input, four topologies, and synchronized multi-channel operation-making it optimal for high-voltage, multi-string, or space-constrained industrial LED systems where external regulators add cost and complexity.
Availability
HV9911NG-G is available at Aetrix Electronics and suitable for RGB backlight control, battery-powered LED lamps, and industrial status lighting requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for HV9911NG-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 global semiconductor company specializing in microcontrollers, analog devices, and power management ICs, with a focus on reliability, longevity, and design-in support.
HV9911NG-G belongs to Microchip's high-voltage LED controller product line, engineered specifically for efficient, flexible, and robust constant-current DC/DC LED drivers in industrial, commercial, and portable lighting systems.
FAQ
What is the maximum input voltage rating for HV9911NG-G?
HV9911NG-G has an absolute maximum VIN rating of +250 V, with functional operation supported from 9 V to 250 V DC when the internal linear regulator is active. At lower input voltages (down to ~7.6 V), the device may still operate if VDD remains above its 6.9 V UVLO threshold, but regulation is not guaranteed below 9 V.
Does HV9911NG-G support synchronous rectification?
No, HV9911NG-G does not support synchronous rectification. It is a controller IC designed to drive a single external N-channel MOSFET in standard buck, boost, buck-boost, or SEPIC topologies. Synchronous operation requires a second gate driver and complementary control logic not present in HV9911NG-G.
How is output current accuracy achieved in HV9911NG-G?
HV9911NG-G achieves high output current accuracy through closed-loop regulation using its internal 1 MHz transconductance amplifier, 2% accurate 1.25 V reference, and precision current-sense comparator with 10 mV offset. The IREF voltage sets the target current, while FDBK feedback continuously adjusts COMP to maintain regulation within ±3% over temperature and line variations.
Can HV9911NG-G be used in constant off-time mode?
Yes, HV9911NG-G supports constant off-time operation by connecting the RT pin to the GATE pin instead of GND. In this mode, the off-time is fixed and the frequency varies with input/output voltage and load, improving light-load efficiency and simplifying EMI filtering compared to constant-frequency operation.
What protection features are built into HV9911NG-G?
HV9911NG-G includes latched output overvoltage protection (OVP), output short-circuit protection, internal thermal shutdown, and programmable MOSFET current limiting. All fault conditions pull the FAULT pin low and disable the GATE driver until input power is cycled-ensuring system safety and preventing damage during abnormal operating conditions.
HV9911NG-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:
- SEPIC, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 9V
- Voltage - Supply (Max):
- 250V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 100kHz, 350kHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
HV9911NG-G FAQ
1.How can I place an order for HV9911NG-G through Aetrix?
Please submit a Request for Quotation (RFQ) for HV9911NG-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 HV9911NG-G reliable?
The price and inventory of HV9911NG-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HV9911NG-G is usually 5 days.
3.What payment methods are accepted for HV9911NG-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HV9911NG-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HV9911NG-G?
HV9911NG-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HV9911NG-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 HV9911NG-G?
For technical support, including HV9911NG-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HV9911NG-G requirements.
6.How does Aetrix verify that HV9911NG-G is sourced from the original manufacturer or authorized distributors?
All HV9911NG-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 HV9911NG-G meets industry standards.
7.What is the process for return or replacement of HV9911NG-G?
All HV9911NG-G units undergo pre-shipment inspection (PSI). If there is an issue with HV9911NG-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 HV9911NG-G part is unused and in its original packaging.
Return procedure for HV9911NG-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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