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Microchip Technology HV9963NG-G-M901
- Part No.:
- HV9963NG-G-M901
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HV9963NG-G-M901.pdf
- Description:
- IC LED DRIVER CTRLR PWM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,576
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Product details
Overview
HV9963NG-G-M901 from Microchip Technology is a current-mode LED driver IC designed to control single-switch DC/DC topologies (buck, boost, buck-boost, SEPIC) with constant-frequency operation, 10V gate drivers, ±2% internal voltage reference, and >5000:1 PWM dimming ratio - deployed in RGB backlighting and battery-powered LED lamps.
For engineers reviewing the HV9963NG-G-M901 datasheet, HV9963NG-G-M901 pinout, HV9963NG-G-M901 application, or HV9963NG-G-M901 equivalent, key selection criteria include peak current-mode control with programmable slope compensation, hiccup-mode fault protection for LED open/short conditions, TTL-compatible PWMD input up to tens of kHz, and dual-regulator architecture (10V PVDD + 5V AVDD).
Technical Context
The HV9963NG-G-M901 implements peak current-mode control with programmable slope compensation via external CSC capacitor and RT resistor, enabling stable operation across duty cycles >50%. Its transconductance op-amp (2000 µA/V gm, 1 MHz GBW) delivers closed-loop LED current regulation with 200 mV feedback reference and 11R:1R internal COMP-to-CS divider.
Synchronization is achieved through a fault-tolerant bidirectional SYNC pin that locks multiple HV9963NG-G-M901 units to the highest-frequency oscillator. The FLT pin drives an external disconnect FET to isolate the LED string during PWM dimming or fault events, directly enabling >5000:1 dimming ratio and open/short-circuit protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology Support | Buck, boost, buck-boost, SEPIC - enables flexible LED driver design across input/output voltage relationships. |
| Switching Frequency | 88–580 kHz (RT-programmable) - supports EMI optimization and inductor size reduction. |
| PWM Dimming Ratio | >5000:1 - achieves deep dimming without color shift in display backlighting. |
| GATE Driver Voltage | 10 V (PVDD-regulated) - drives standard-level N-channel MOSFETs without level-shifting. |
| Internal Reference | ±2% accuracy at AVDD = 5.0 V - ensures precise LED current setting across temperature and line variation. |
| Fault Protection | Hiccup mode for LED open/short and OVP (1.25 V trip, 0.125 V hysteresis) - prevents thermal runaway and component damage. |
| Operating Temp | –40°C to +125°C ambient - qualified for industrial and automotive interior lighting environments. |
Pinout & Package
Package: 16-lead SOIC (surface-mount, 1.27 mm pitch, JEDEC MS-012AC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-voltage input | Accepts 8–40 V DC; powers internal 40 V regulator feeding PVDD and AVDD rails. |
| PVDD | 10 V gate driver supply | Regulated 10 V output (9.5–10.5 V) for GATE and FLT drivers; requires ≥1 µF low-ESR bypass. |
| GATE | Main switch driver output | 10 V, 200 mA source / 400 mA sink capability; drives external power FET gate. |
| CS | Current sense input | Receives voltage from RCS sense resistor; includes 100–300 ns blanking to suppress turn-on spikes. |
| RT | Oscillator timing input | Resistor-to-GND sets switching frequency (88–580 kHz); enables sync-lock via PWMD edge. |
| SYNC | Peer-to-peer clock I/O | Bi-directional pin synchronizes multiple HV9963NG-G-M901 units to highest-frequency master. |
| FLT | Fault disconnect control | Drives external FET to isolate LED string during PWM off-time or fault - critical for high dimming ratio. |
| OVP | Overvoltage protection input | Triggers shutdown at 1.25 V (rising), re-enables after hysteresis drop to 1.125 V. |
| PWMD | TTL PWM dimming input | Accepts 0–100% duty, up to ~30 kHz; controls enhanced dimming logic and oscillator enable. |
| IREF | LED current reference input | 200 mV reference sets full-scale LED current; voltage >1.25 V disables short-circuit comparator. |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced PWM dimming logic | Maintains closed-loop control during sub-cycle dimming pulses - preserves LED current regulation down to 1 switching cycle. |
| Programmable soft start | Capacitor on SS pin limits COMP voltage ramp rate - eliminates LED current overshoot at startup. |
| Dual independent regulators | 10 V PVDD (for gate drivers) and 5 V AVDD (for analog logic + reference) - decouples noise-sensitive control from power switching. |
| Hiccup-mode fault recovery | HCP pin programs restart delay after OVP, open-LED, or short-circuit faults - avoids latch-up while ensuring safe retry. |
| Internal slope compensation | Current-source (ISC = 2 µA typ.) charges external CSC - stabilizes peak current-mode control in CCM above 50% duty. |
Applications
| RGB LCD Backlighting | Battery-Powered LED Lamps |
|---|---|
Use Scenario: Driving parallel red/green/blue LED strings in portable displays requiring uniform brightness and minimal color shift across dimming range. IC Role / Device Role / Timing Role: Constant-current controller implementing synchronized multi-channel PWM dimming with independent current regulation per string. Use Value: >5000:1 dimming ratio preserves grayscale fidelity; 10V gate drive enables efficient discrete FET use; AVDD reference ensures stable color point over battery discharge. |
Use Scenario: Portable task lighting powered by 2–3 cell Li-ion batteries (8–12.6 V), requiring regulated LED current and robust fault handling. IC Role / Device Role / Timing Role: Boost-mode LED driver with hiccup-mode protection against LED open/short and input undervoltage. Use Value: Wide 8–40 V input range accommodates full battery voltage swing; integrated 5 V AVDD and 10 V PVDD eliminate external LDOs; FLT-driven disconnect improves efficiency during dimming. |
| Automotive Interior Lighting | Industrial Status Indicators |
Use Scenario: Dome lights, map lights, and ambient lighting in vehicles where EMC compliance and thermal reliability are critical. IC Role / Device Role / Timing Role: Buck-boost LED driver operating from 9–16 V nominal vehicle supply with load dump tolerance up to 40 V. Use Value: VIN absolute max rating of 45 V withstands ISO 7637-2 pulse 5a; –40°C to +125°C operation meets AEC-Q100 ambient requirements; SYNC pin enables multi-lamp synchronization. |
Use Scenario: Panel-mounted status indicators in factory HMIs requiring long-life, stable luminance, and immunity to voltage transients. IC Role / Device Role / Timing Role: SEPIC-based constant-current driver powering single or series-connected LEDs from unregulated 12–24 V industrial supplies. Use Value: Dual-regulator architecture isolates analog control from noisy 24 V rail; OVP and hiccup protection prevent field failures due to wiring faults; RT-programmable frequency avoids sensitive EMI bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4425AGU-A | Fixed-frequency current-mode buck controller (3.3–36 V IN, 5 A integrated FET); no boost/SEPIC support; no FLT pin or hiccup timer. | Limited to buck topology only; lacks disconnect FET control and >5000:1 dimming logic. | Select when board space and BOM count are prioritized over topology flexibility and ultra-deep dimming. |
| LM3409HVMM/NOPB | Adjustable-frequency current-mode controller (6–75 V IN); supports buck/boost/SEPIC; no integrated 10 V gate driver or AVDD reference. | Requires external 10 V bias and precision reference; dimming ratio limited to ~1000:1; no SYNC or FLT functionality. | Select when higher input voltage (>40 V) or wider ambient range is required, and external bias is acceptable. |
Compared with MPQ4425AGU-A and LM3409HVMM/NOPB, the HV9963NG-G-M901 uniquely integrates dual regulators (10 V PVDD + 5 V AVDD), FLT-driven LED disconnect, and enhanced sub-cycle PWM dimming - making it optimal for multi-topology, high-fidelity backlighting where dimming depth and fault resilience are critical.
Availability
HV9963NG-G-M901 is available at Aetrix Electronics and suitable for RGB LCD backlighting, battery-powered LED lamps, and automotive interior lighting requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for HV9963NG-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 manufacturer specializing in microcontrollers, analog devices, and power management ICs, with broad industrial and automotive qualification coverage.
The HV9963NG-G-M901 belongs to Microchip's high-performance LED driver controller product line, engineered specifically for constant-current DC/DC conversion in display backlighting and portable lighting applications demanding precision dimming and robust fault handling.
FAQ
What is the maximum input voltage rating for HV9963NG-G-M901?
The HV9963NG-G-M901 has an absolute maximum VIN-to-GND rating of +45 V. Its operational input voltage range is specified as 8 V to 40 V DC. Exceeding 45 V may cause permanent damage; for automotive applications with load dump transients, external clamping is recommended if system-level transients exceed this limit. The HV9963NG-G-M901 internal 40 V regulator feeds both PVDD and AVDD rails.
Does HV9963NG-G-M901 support boost topology with LED string disconnect during PWM dimming?
Yes, HV9963NG-G-M901 explicitly supports boost topology and uses its FLT pin to drive an external disconnect FET that isolates the LED string during PWM off-time. This function is essential to achieve >5000:1 dimming ratio and prevent leakage current through output capacitors. The FLT signal goes low during PWM off, turning off the disconnect FET and breaking the current path to the LEDs.
How is the switching frequency set on HV9963NG-G-M901, and can it be synchronized?
The switching frequency of HV9963NG-G-M901 is set by an external resistor (RT) from the RT pin to GND, yielding 88–580 kHz depending on value. It also features a bidirectional SYNC pin that allows multiple HV9963NG-G-M901 units - or external clock sources - to synchronize, locking all oscillators to the highest-frequency device. This eliminates beat frequencies and simplifies EMI filtering in multi-channel systems.
What protection features does HV9963NG-G-M901 provide for LED string faults?
HV9963NG-G-M901 provides hiccup-mode protection for both LED string open-circuit and short-circuit conditions, plus overvoltage protection (OVP) triggered at 1.25 V on the OVP pin. Upon fault detection, GATE is disabled, FLT goes low, and the HCP timer initiates a controlled restart attempt after a programmable delay - preventing thermal stress and enabling automatic recovery without system-level intervention.
Can HV9963NG-G-M901 operate without an external current-sense resistor?
No, HV9963NG-G-M901 requires an external current-sense resistor (RCS) connected between the source of the main switching FET and GND. The CS pin monitors voltage across RCS to implement peak current-mode control. The datasheet specifies minimum blanking time (100 ns) and internal slope compensation current (2 µA typ.), but RCS value must be selected based on desired peak inductor current and topology - no internal sense element is provided.
HV9963NG-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):
- 8V
- Voltage - Supply (Max):
- 40V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 100kHz, 520kHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
HV9963NG-G-M901 FAQ
1.How can I place an order for HV9963NG-G-M901 through Aetrix?
Please submit a Request for Quotation (RFQ) for HV9963NG-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 HV9963NG-G-M901 reliable?
The price and inventory of HV9963NG-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 HV9963NG-G-M901 is usually 5 days.
3.What payment methods are accepted for HV9963NG-G-M901?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HV9963NG-G-M901 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HV9963NG-G-M901?
HV9963NG-G-M901 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HV9963NG-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 HV9963NG-G-M901?
For technical support, including HV9963NG-G-M901 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HV9963NG-G-M901 requirements.
6.How does Aetrix verify that HV9963NG-G-M901 is sourced from the original manufacturer or authorized distributors?
All HV9963NG-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 HV9963NG-G-M901 meets industry standards.
7.What is the process for return or replacement of HV9963NG-G-M901?
All HV9963NG-G-M901 units undergo pre-shipment inspection (PSI). If there is an issue with HV9963NG-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 HV9963NG-G-M901 part is unused and in its original packaging.
Return procedure for HV9963NG-G-M901:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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