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Microchip Technology HV9910CNG-G
- Part No.:
- HV9910CNG-G
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HV9910CNG-G.pdf
- Description:
- IC LED DRIVER CTRLR PWM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,545
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Product details
Overview
HV9910CNG-G from Microchip Technology is an open-loop, peak-current-mode LED driver IC in 16-lead SOIC (NG) package, featuring internal 15–450 V linear regulator, constant-frequency or constant-off-time operation, 250 mV current sense threshold, and integrated over-temperature protection. It drives external N-channel MOSFETs in buck LED topologies for signage, backlighting, and DC/DC LED drivers.
For engineers reviewing the HV9910CNG-G datasheet, HV9910CNG-G pinout, HV9910CNG-G application, or HV9910CNG-G equivalent, key selection considerations include input voltage range (15–450 V), thermal shutdown at 140°C (typ.), PWM/linear dimming support, gate drive capability (±165 mA), and oscillator frequency programmability via RT pin.
Technical Context
The HV9910CNG-G implements open-loop peak-current control using dual comparators-one referenced to a fixed 250 mV threshold and the other to the adjustable LD pin voltage-enabling precise LED current regulation without loop compensation. Its internal linear regulator powers all circuitry directly from VIN, eliminating need for auxiliary low-voltage supply.
Operation mode is selected by RT pin connection: grounded for constant-frequency (20–120 kHz), tied to GATE for constant-off-time. The 150–315 ns current-sense blanking window prevents false turn-off during FET switching transients, while 80 ns comparator response ensures fast current limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 15–450 V DC - enables direct high-voltage DC input without external bias supply |
| VDD Regulated Output | 7.5 V ±250 mV - powers internal logic and gate driver; stable across full input range |
| Current Sense Threshold | 250 mV (typ.) - sets LED current via external sense resistor; adjustable down to 0 V via LD pin |
| Oscillator Frequency | 20–120 kHz - selectable via RT resistor; supports both constant-frequency and constant-off-time modes |
| GATE Drive Strength | ±165 mA - sufficient to drive MOSFETs with ≤25 nC gate charge at ≤100 kHz |
| Thermal Shutdown | 140°C (typ.) with 20°C hysteresis - auto-recoverable protection preventing thermal runaway |
| PWM Dimming Input | TTL-compatible (0–1.0 V low / 2.4–VDD high); supports up to few kHz - enables fast, flicker-free LED intensity control |
Pinout & Package
Package: 16-lead SOIC (NG), narrow body, RoHS-compliant (G suffix), tape-and-reel (M934).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | High-voltage input | Connects to 15–450 V DC source; powers internal linear regulator |
| CS (Pin 4) | Current sense input | Monitors voltage across external sense resistor; triggers GATE turn-off when ≥250 mV or LD voltage |
| GND (Pin 5) | Power ground reference | Common return for internal circuits and external power stage |
| GATE (Pin 8) | Gate driver output | Drives external N-MOSFET; ±165 mA sink/source, 30–50 ns rise/fall time (500 pF load) |
| PWMD (Pin 12) | PWM dimming control | TTL-level input: low or open = GATE disabled; high = normal operation |
| VDD (Pin 13) | Internal supply rail | 7.5 V regulated output; must be bypassed with ≥0.1 µF low-ESR capacitor to GND |
| LD (Pin 14) | Linear dimming / current threshold adjust | Sets CS trip point from 0–250 mV; enables analog current scaling without changing RCS |
| RT (Pin 15) | Oscillator timing | Resistor to GND → constant frequency; resistor to GATE → constant off-time |
Key Features
| Feature | Design Value |
|---|---|
| Open-loop peak-current control | Eliminates need for error amplifier, compensation network, or high-side current sensing - reduces BOM count and design complexity |
| Integrated 15–450 V linear regulator | Enables single-supply operation from wide-input DC rails without auxiliary bias supply or LDO |
| Dual dimming interface | Simultaneous TTL PWM (0–few kHz) and 0–250 mV linear inputs - supports flexible brightness control architectures |
| Programmable operation mode | Constant-frequency (stable EMI) or constant-off-time (inherent line regulation, >50% duty cycle capable) - selected by RT connection |
| Auto-recoverable thermal shutdown | Shuts down at 140°C (typ.) with 20°C hysteresis and draws <350 µA - protects against sustained overload without manual reset |
Applications
| RGB Backlighting | Flat Panel Display Backlight |
|---|---|
Use Scenario: Driving red, green, and blue LED strings in LCD TV or monitor backlight units with independent dimming per channel. IC Role / Device Role / Timing Role: Open-loop current controller regulating each string's peak current via dedicated CS and LD pins per channel. Use Value: Enables accurate color balance and uniform luminance across large-area displays without closed-loop feedback components. |
Use Scenario: Powering edge-lit or direct-lit LED arrays behind TFT-LCD panels in commercial signage and industrial HMIs. IC Role / Device Role / Timing Role: Constant-current buck controller operating in constant-off-time mode for inherent input voltage rejection. Use Value: Maintains stable LED current despite wide AC/DC adapter output variation (e.g., 24–48 V), reducing system-level regulation requirements. |
| LED Signage | DC/DC LED Driver Module |
Use Scenario: High-brightness outdoor LED message boards powered from 36–72 V DC battery or PoE-derived supplies. IC Role / Device Role / Timing Role: Primary current-mode controller driving multiple parallel LED strings with thermal foldback via OTP. Use Value: Delivers robust operation under elevated ambient temperatures with automatic recovery after cooling - no firmware intervention needed. |
Use Scenario: Compact, cost-sensitive LED driver module for industrial lighting where PCB space and component count are constrained. IC Role / Device Role / Timing Role: Core switch-mode controller requiring only three external components (RCS, RRT, L1) beyond power MOSFET and diode. Use Value: Achieves <10 mm² solution size and <0.25% current regulation drift over line/load - ideal for embedded LED modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HV9910BNG-G | Lacks built-in over-temperature protection; identical pinout and electrical specs otherwise | Not suitable for thermally constrained enclosures or unventilated designs without external thermal monitoring | Select HV9910CNG-G when autonomous thermal safety is required; HV9910BNG-G only if legacy compatibility or cost sensitivity outweighs OTP need |
| AL8862SP-13 | Constant-current buck controller with integrated 600 V MOSFET; no external FET required; 200 mV sense threshold | Higher integration reduces board area but limits max output current and thermal management flexibility vs. external-FET topology | Choose HV9910CNG-G for higher-power (>2 A), thermally optimized, or field-serviceable designs; AL8862SP-13 for ultra-compact sub-1 A modules |
Compared with HV9910BNG-G, HV9910CNG-G adds critical thermal autonomy without layout or pinout change; versus AL8862SP-13, it trades integration for scalability, thermal headroom, and design flexibility in medium-to-high-power LED systems.
Availability
HV9910CNG-G is available at Aetrix Electronics and suitable for RGB backlighting, flat panel display backlight, and LED signage applications requiring stable component supply, long-term manufacturability, and RoHS-compliant sourcing.
Supply support for HV9910CNG-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 ISO/TS-16949-certified manufacturing and broad automotive/industrial qualification.
HV9910CNG-G belongs to Microchip's universal LED driver controller product line, designed specifically for cost-sensitive, high-voltage DC-powered LED lighting systems requiring minimal external components and robust thermal behavior.
FAQ
What is the maximum input voltage rating for HV9910CNG-G?
The HV9910CNG-G has an absolute maximum VIN rating of +470 V, but its operational input voltage range is specified as 15–450 V DC. At the upper end, power dissipation limits practical use - for example, with 450 V input and 2 mA quiescent current, junction temperature rise must be managed via heatsinking or external Zener clamping per DS20005323A-page 7. Always verify thermal margin using θJA = 83°C/W for the 16-lead SOIC package.
Does HV9910CNG-G require an external power supply for VDD?
No, HV9910CNG-G does not require an external VDD supply. Its internal 15–450 V linear regulator generates a regulated 7.5 V output at the VDD pin when powered from VIN. However, VDD can also be driven externally with 7.5–12 V to disable the internal regulator - useful when lower VIN power loss is critical. In either case, VDD must be bypassed with ≥0.1 µF low-ESR capacitor to GND.
How does the HV9910CNG-G implement thermal protection?
HV9910CNG-G features auto-recoverable over-temperature protection that activates at 140°C (typ.) junction temperature, reducing VIN current to <350 µA. Hysteresis is 20°C (typ.), so the device resumes normal operation once junction temperature falls below ~120°C. This protection is fully internal - no external components or configuration are needed, and it operates independently of PWM or linear dimming states.
Can HV9910CNG-G operate in constant-frequency mode with dimming enabled?
Yes, HV9910CNG-G supports simultaneous constant-frequency operation and dimming. When RT is connected to GND, oscillator frequency is fixed (e.g., 100 kHz with 249 kΩ). PWM dimming via PWMD and linear dimming via LD remain fully functional regardless of oscillator mode - both adjust LED current without altering switching frequency or requiring additional control logic.
What is the purpose of the blanking time on the CS pin of HV9910CNG-G?
The HV9910CNG-G applies a 145–315 ns blanking interval after each GATE turn-on to ignore transient voltage spikes at the CS pin caused by MOSFET switching. This prevents false current-limit triggering during the turn-on edge. The blanking timer is internal and automatic - no external RC filter is required unless layout-induced noise exceeds this window, in which case a small RC network between RCS and CS may be added per DS20005323A-page 8.
HV9910CNG-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:
- 25kHz, 100kHz
- Dimming:
- Analog, PWM
- Applications:
- Backlight, Lighting, Signage
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
HV9910CNG-G FAQ
1.How can I place an order for HV9910CNG-G through Aetrix?
Please submit a Request for Quotation (RFQ) for HV9910CNG-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 HV9910CNG-G reliable?
The price and inventory of HV9910CNG-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HV9910CNG-G is usually 5 days.
3.What payment methods are accepted for HV9910CNG-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HV9910CNG-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HV9910CNG-G?
HV9910CNG-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HV9910CNG-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 HV9910CNG-G?
For technical support, including HV9910CNG-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HV9910CNG-G requirements.
6.How does Aetrix verify that HV9910CNG-G is sourced from the original manufacturer or authorized distributors?
All HV9910CNG-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 HV9910CNG-G meets industry standards.
7.What is the process for return or replacement of HV9910CNG-G?
All HV9910CNG-G units undergo pre-shipment inspection (PSI). If there is an issue with HV9910CNG-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 HV9910CNG-G part is unused and in its original packaging.
Return procedure for HV9910CNG-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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