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Microchip Technology HV9912NG-G-M901
- Part No.:
- HV9912NG-G-M901
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HV9912NG-G-M901.pdf
- Description:
- IC LED DRIVER CTRLR PWM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,600
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Product details
Overview
HV9912NG-G-M901 from Microchip Technology is a switch-mode LED driver IC designed for constant-frequency or constant-off-time peak current-mode control of buck, boost, buck-boost, and SEPIC topologies. It integrates a 90V input linear regulator, ±0.2A/–0.4A gate driver, 1.25V ±2% reference, programmable slope compensation, and hiccup-mode protection against open/short-circuit faults. It enables high-accuracy closed-loop LED current regulation in RGB backlight and battery-powered lamp designs.
For engineers reviewing the HV9912NG-G-M901 datasheet, HV9912NG-G-M901 pinout, HV9912NG-G-M901 application, or HV9912NG-G-M901 equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative options, and supply-ready availability details - all grounded in Microchip's DS20005583A datasheet.
Technical Context
The HV9912NG-G-M901 implements peak current-mode control with programmable slope compensation to ensure stability at duty cycles >50% in continuous conduction mode. Its internal transconductance amplifier (gM = 550 µA/V, GBW = 1 MHz) provides closed-loop output current regulation via FDBK/IREF feedback, with COMP pin serving dual role as error amplifier output and hiccup timer node.
It supports synchronization via open-drain SYNC I/O pin, enabling multi-IC phase-locking without external clock master. Protection architecture includes blanked short-circuit detection (TBLANK,SC = 480–900 ns), hysteretic OVP (5.0 V rising / 4.5 V falling), and fault-triggered 5 µA sourcing/sinking hiccup timer tied directly to the COMP network.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 9 V to 90 V DC - powers IC directly via internal linear regulator; no auxiliary supply needed. |
| Gate Drive Capability | +0.2 A source / –0.4 A sink - drives high-Q N-channel MOSFETs in high-power LED applications. |
| Reference Accuracy | 1.25 V ±2% (0°C to +85°C) - sets precise LED current and CLIM thresholds without external trimming. |
| Oscillator Frequency | 99–118 kHz (RT = 500 kΩ) or 510–650 kHz (RT = 96 kΩ) - selectable via single resistor for EMI optimization. |
| Overvoltage Threshold | 5.0 V rising / 4.5 V falling (0.5 V hysteresis) - enables automatic recovery after LED string disconnection in boost configurations. |
| Short-Circuit Response | <1150 ns detection (with PWMD-blanked timing) - prevents false triggering during PWM dimming transitions. |
| Operating Junction Temp | –40°C to +125°C - qualified for industrial and automotive ambient environments. |
Pinout & Package
HV9912NG-G-M901 is housed in a 16-lead SOIC package with standard JEDEC MS-012AC footprint (5.3 mm × 10.2 mm, 1.27 mm pitch). Thermal resistance θJA = 83°C/W enables operation up to 125°C junction temperature at full load with minimal heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (1) | High-voltage input rail | Accepts 9–90 V DC; powers internal 7.75 V regulator - eliminates need for auxiliary bias supply. |
| VDD (2) | Internal power rail | Regulated 7.75 V output; requires ≥0.1 µF low-ESR bypass capacitor for gate driver transient current. |
| GATE (3) | Power MOSFET driver output | ±0.2A/–0.4A push-pull stage - directly drives gate of external N-channel FET in switching converter. |
| GND (4) | Analog/low-power ground | Return path for internal analog circuits; must be star-connected to minimize noise coupling into CS/COMP. |
| CS (5) | Current sense input | Monitors high-side FET source current with 100–330 ns blanking - rejects turn-on spikes in buck/buck-boost. |
| SC (6) | Slope compensation control | Sources up to 100 µA - sets ramp compensation for stable CCM operation above 50% duty cycle. |
| RT (7) | Oscillator timing resistor | Resistor-to-ground sets switching frequency; two ranges supported (≈100 kHz or ≈600 kHz). |
| SYNC (8) | Sync I/O pin | Open-drain peer-to-peer sync bus - locks multiple HV9912NG-G-M901 ICs to highest-frequency oscillator. |
| CLIM (9) | Programmable current limit | Resistor-divider from REF sets input current limit threshold - protects during undervoltage or overload. |
| REF (10) | 2% accurate 1.25 V reference | Bypassed with 0.01–0.1 µF capacitor; supplies reference for IREF, CLIM, and external circuitry (≤500 µA). |
| FAULT (11) | Open-drain fault indicator | Pulled low on OVP or short-circuit - drives external disconnect FET to isolate LEDs in fault condition. |
| OVP (12) | Overvoltage sense input | Monitors scaled output voltage; trips GATE disable at 5.0 V (rising) with 0.5 V hysteresis for auto-recovery. |
| PWMD (13) | TTL-compatible dimming enable | Active-high (≥2 V); disables GATE and disconnects gM output when low - enables seamless PWM dimming. |
| COMP (14) | Error amplifier output & hiccup timer node | Connects to RC compensation network; also serves as hiccup timer capacitor - controls restart delay after fault. |
| IREF (15) | Current reference input | Set by resistor divider from REF; defines target LED current level in closed-loop regulation. |
| FDBK (16) | Current feedback input | Receives voltage from sense resistor in LED return path - closes current loop with transconductance amplifier. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-compatible upgrade from HV9911 | Direct drop-in replacement for existing HV9911 designs with VIN < 90 V; requires only ROVP1/ROVP/RT changes. |
| Hiccup-mode short/open-circuit protection | Auto-restarts after fault clearance using COMP pin RC network - no manual reset or system interruption required. |
| Blanked short-circuit detection during PWM dimming | Integrated 480–900 ns blanking window triggered by PWMD high edge - eliminates need for external R-C filter at FDBK. |
| Programmable slope compensation | Configurable via SC pin current and external resistors - ensures stability across wide duty-cycle range in CCM operation. |
| Synchronization capability | Multi-IC phase-locking via shared SYNC bus - reduces EMI peaks and enables interleaved high-power LED drivers. |
| Internal 90 V linear regulator | Eliminates auxiliary bias supply - simplifies BOM and layout while supporting wide-input industrial/battery systems. |
Applications
| RGB Backlight Control | Portable LED Lamp Driver |
|---|---|
|
Use Scenario: Driving red/green/blue LED strings in LCD displays with independent current control and synchronized dimming. IC Role / Device Role / Timing Role: Peak current-mode controller managing three separate buck converters; uses SYNC pin to align switching edges across channels. Use Value: Enables flicker-free color mixing with <1150 ns short-circuit response and 2% reference accuracy for consistent luminance per channel. |
Use Scenario: Powering high-brightness white LEDs from 12 V lead-acid or 3S Li-ion battery packs in handheld inspection lamps. IC Role / Device Role / Timing Role: Constant-current boost controller with hiccup-mode protection - sustains operation during momentary shorts (e.g., probe contact). Use Value: Delivers 0.4 A sink gate drive and 90 V input tolerance to maintain regulated LED current across 9–36 V input range. |
| Industrial Panel Lighting | Automotive Interior Lighting |
|
Use Scenario: Driving long LED strings in factory HMIs and control panels where reliability under thermal stress is critical. IC Role / Device Role / Timing Role: Buck-boost LED driver operating in constant-off-time mode; leverages internal 125°C-rated transconductance amplifier. Use Value: Maintains ±2% current accuracy over –40°C to +125°C junction range - eliminates thermal derating in enclosed enclosures. |
Use Scenario: Controlling footwell, map, or dome lighting with PWM dimming compatibility and load-dump survivability. IC Role / Device Role / Timing Role: SEPIC topology controller accepting 6–16 V automotive input; uses OVP hysteresis to survive load-dump transients. Use Value: Withstands 90 V input surges and recovers automatically after LED disconnection - meets OEM robustness requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HV9911NG-G-M901 | Lacks hiccup-mode protection and PWMD-blanked short-circuit detection; OVP hysteresis not specified. | Not suitable for applications requiring automatic fault recovery or robust PWM dimming in boost topologies. | Select HV9912NG-G-M901 when hiccup protection, blanked fault detection, or guaranteed OVP hysteresis are required. |
| LM3410XMM/NOPB | Fixed-frequency 1.6 MHz buck controller; no boost/SEPIC support; no internal HV regulator; max VIN = 20 V. | Restricted to low-input-voltage, single-topology applications; requires external bias supply and lacks multi-topology flexibility. | Choose HV9912NG-G-M901 for 9–90 V input, multi-topology support, integrated HV regulator, and hiccup protection. |
Compared with HV9911NG-G-M901, HV9912NG-G-M901 adds hiccup recovery and blanked fault detection - critical for unattended LED systems. Versus LM3410XMM/NOPB, it offers wider input range, topology flexibility, and integrated power - reducing BOM count and layout complexity in industrial designs.
Availability
HV9912NG-G-M901 is available at Aetrix Electronics and suitable for RGB backlight control, portable LED lamp driver, industrial panel lighting, and automotive interior lighting applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for HV9912NG-G-M901 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 broad industrial, automotive, and consumer market presence.
HV9912NG-G-M901 belongs to Microchip's high-voltage LED controller product line, engineered for accurate constant-current regulation in buck, boost, buck-boost, and SEPIC LED drivers - targeting applications demanding reliability, wide input range, and integrated protection.
FAQ
What is the maximum input voltage rating for HV9912NG-G-M901?
HV9912NG-G-M901 has an absolute maximum VIN-to-GND rating of +100 V, with functional operation specified from 9 V to 90 V DC. Its internal 90 V linear regulator allows direct connection to high-voltage rails - eliminating external bias supplies in industrial and automotive LED systems. Operation above 90 V risks permanent damage per DS20005583A Absolute Maximum Ratings.
Does HV9912NG-G-M901 support boost topology with open-LED protection?
Yes, HV9912NG-G-M901 supports boost topology and provides open-circuit (open-LED) protection via its hiccup-mode fault recovery. When the LED string opens, FAULT goes low and GATE disables; the COMP pin then executes a timed restart sequence. This behavior is confirmed in Section 3.13 and Figure 3-3 of DS20005583A, and applies identically to boost, buck, and SEPIC configurations.
How does the SYNC pin function in HV9912NG-G-M901?
The SYNC pin in HV9912NG-G-M901 is a bidirectional open-drain I/O that enables peer-to-peer synchronization among multiple HV9912NG-G-M901 ICs. When connected together, oscillators lock to the highest-frequency device. It tolerates permanent high/low states without system failure - maintaining individual operation if sync is lost. No external pull-up is required per DS20005583A Section 3.6.
Can HV9912NG-G-M901 replace HV9911NG-G-M901 without PCB changes?
Yes - HV9912NG-G-M901 is explicitly documented as pin-compatible with HV9911NG-G-M901 and usable in existing HV9911 designs with VIN < 90 V. DS20005583A Section 1 states it is "a pin-compatible replacement", and Section 3.1 confirms retrofitting requires only updates to ROVP1, ROVP, and RT resistors - no layout or footprint modifications needed.
What is the purpose of the CLIM pin in HV9912NG-G-M901?
The CLIM pin in HV9912NG-G-M901 sets the programmable input current limit using a resistor divider from the REF pin. It triggers shutdown during input undervoltage or output overload conditions, protecting the power stage. Equation 3-6 in DS20005583A defines its voltage threshold, and Section 3.9 specifies CLIM must not be bypassed with capacitance to avoid instability.
HV9912NG-G-M901 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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):
- 100V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 106kHz, 580kHz
- Dimming:
- Analog, PWM
- Applications:
- Backlight, Lighting
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
HV9912NG-G-M901 FAQ
1.How can I place an order for HV9912NG-G-M901 through Aetrix?
Please submit a Request for Quotation (RFQ) for HV9912NG-G-M901 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 HV9912NG-G-M901 reliable?
The price and inventory of HV9912NG-G-M901 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HV9912NG-G-M901 is usually 5 days.
3.What payment methods are accepted for HV9912NG-G-M901?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HV9912NG-G-M901 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HV9912NG-G-M901?
HV9912NG-G-M901 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HV9912NG-G-M901 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 HV9912NG-G-M901?
For technical support, including HV9912NG-G-M901 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HV9912NG-G-M901 requirements.
6.How does Aetrix verify that HV9912NG-G-M901 is sourced from the original manufacturer or authorized distributors?
All HV9912NG-G-M901 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 HV9912NG-G-M901 meets industry standards.
7.What is the process for return or replacement of HV9912NG-G-M901?
All HV9912NG-G-M901 units undergo pre-shipment inspection (PSI). If there is an issue with HV9912NG-G-M901, 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 HV9912NG-G-M901 part is unused and in its original packaging.
Return procedure for HV9912NG-G-M901:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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