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Microchip Technology HV9967BK7-G
- Part No.:
- HV9967BK7-G
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
HV9967BK7-G.pdf
- Description:
- IC LED DRVR RGLTR PWM 750MA 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,867
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Product details
Overview
HV9967BK7-G from Microchip Technology is an integrated LED driver IC with average-mode current control, featuring a 60V/0.8Ω internal N-channel MOSFET, ±3% LED current accuracy, fixed off-time regulation, and PWM dimming input - used in constant-current DC/DC LED drivers for signage, backlighting, and decorative lighting.
For engineers reviewing the HV9967BK7-G datasheet, HV9967BK7-G pinout, HV9967BK7-G application, or HV9967BK7-G equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, and confirmed alternative options for LED driver selection and layout planning.
Technical Context
The HV9967BK7-G implements average-mode current control using only switch-source current sensing at RSENSE, eliminating peak-to-average error and removing need for loop compensation or high-side current sensing. Its constant off-time (COT) architecture ensures stable regulation across wide input voltage ranges (8–60 VDC) and load variations.
It integrates a 60V, 0.8Ω NDMOS switch with self-powered operation: the IC derives its 5V internal supply from the SW node during off-time, enabling direct use as a buck switch or as a gate driver for external depletion-mode FETs. Short-circuit protection operates via hiccup mode with 400 mV threshold and 800 µs recovery interval.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LED Current Accuracy | ±3% - enables precise brightness control without calibration in production LED systems. |
| Integrated MOSFET | 60V / 0.8Ω - supports up to 60V input and handles ≥750 mA continuous current in buck topology. |
| Current Sense Threshold | 250 mV (typ.) at RSENSE - sets LED current via single resistor (ILED = 0.25V / RCS), simplifying BOM and layout. |
| Off-Time Range | 0.7–48 µs (RT = 10–400 kΩ) - determines switching frequency and inductor sizing; RT = 100 kΩ yields ~40 µs off-time. |
| Thermal Shutdown | 145°C trip / 20°C hysteresis - protects against sustained overloads without latch-up, allowing automatic recovery. |
| PWM Dimming Input | TTL-compatible (VEN(HI) ≥ 2V, VEN(LO) ≤ 0.8V) - enables seamless integration with microcontroller GPIOs for digital brightness control. |
| Operating Ambient Temp | –40°C to +125°C - qualified for industrial and outdoor LED lighting environments. |
Pinout & Package
Package: 8-lead WDFN (wettable flank), RoHS-compliant, 3300/reel - thermally enhanced for high-power density LED driver applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Drain of internal 60V MOSFET & HV regulator input | Connects to inductor and LED string cathode; supplies IC power during off-time via internal LDO. |
| RSENSE | Source of internal MOSFET & current sense input | Measures switch current to regulate average LED current; sets both ILED and short-circuit trip point. |
| PGND | Power ground return path | Must be low-impedance PCB connection to AGND; carries high di/dt switching current. |
| PWMD | PWM dimming enable input | TTL-level signal that directly gates SW switching - no external logic required for brightness modulation. |
| NC | No connection | Unbonded pad; must remain floating per datasheet - no routing or thermal relief needed. |
| RT | Off-time timing resistor connection | Resistor between RT and VDD sets fixed off-time; determines operating frequency and ripple trade-offs. |
| AGND | Analog reference ground | Reference for RSENSE comparator and internal analog blocks; separate from PGND but tied on PCB. |
| VDD | Internal regulator output & bias supply | Bypass with ≥0.5 µF low-ESR capacitor to PGND; also connects gate of external depletion-mode FET if used. |
Key Features
| Feature | Design Value |
|---|---|
| Average-mode current control | Eliminates peak-to-average error and line/load regulation drift - achieves ±3% LED current accuracy without compensation network. |
| Single-resistor current setting | LED current programmed by one external RSENSE resistor (ILED = 0.25V / RCS), reducing component count and layout sensitivity. |
| Self-powered architecture | Derives VDD from SW node during off-time - enables standalone buck operation or external HV FET drive without auxiliary supply. |
| Output short-circuit hiccup protection | Trips at 400 mV on RSENSE and enforces 800 µs off-time recovery - prevents inductor saturation and thermal runaway under fault conditions. |
| Leading-edge blanking at RSENSE | 140–290 ns blanking window suppresses switching noise false triggers - improves reliability in noisy EMI environments. |
Applications
| RGB Backlighting for LCD Panels | Architectural Signage Lighting |
|---|---|
Use Scenario: Driving RGB LED strings in flat-panel displays requiring independent color channel dimming and tight current matching. IC Role / Device Role / Timing Role: Constant-current buck controller with PWM dimming input and average-mode regulation - manages each color channel's brightness and stability. Use Value: ±3% current accuracy ensures consistent white point and color fidelity across temperature and input voltage variation. |
Use Scenario: Outdoor LED signage with long strings powered from 24–48 VDC bus, exposed to ambient temperatures from –40°C to +85°C. IC Role / Device Role / Timing Role: Primary LED current regulator with integrated 60V MOSFET and thermal shutdown - replaces discrete FET + controller solutions. Use Value: Self-powered operation eliminates auxiliary supply; 125°C max junction rating supports sealed enclosures without forced cooling. |
| Decorative LED Strip Drivers | Industrial Panel Indicator Lighting |
Use Scenario: Low-cost, compact drivers for flexible LED strips in retail and hospitality installations where space and thermal management are constrained. IC Role / Device Role / Timing Role: Standalone constant-current source with fixed off-time control - operates directly from 12–36 VDC input without external gate drivers. Use Value: 8-lead WDFN package (HV9967BK7-G) offers 1.6W power dissipation - supports >500 mA LED current in minimal PCB area. |
Use Scenario: Status indicators in industrial HMIs and control panels requiring long-life, flicker-free illumination with robust ESD and overvoltage tolerance. IC Role / Device Role / Timing Role: Precision current source with short-circuit hiccup and overtemperature protection - ensures fail-safe operation in safety-critical environments. Use Value: Hiccup-mode fault response prevents catastrophic failure; thermal hysteresis (20°C) avoids oscillation near trip point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL8862SP-13 | Fixed-frequency (1 MHz) current-mode controller; requires external high-side MOSFET; no integrated switch. | Used where higher switching frequency reduces inductor size, but demands more external components and layout complexity. | Choose AL8862SP-13 when designing for >1 MHz operation and external FET selection flexibility - not drop-in compatible with HV9967BK7-G. |
| MPQ4425AGU-AEC1-P | 40V integrated buck LED driver with 0.35Ω MOSFET; AEC-Q100 qualified; supports analog + PWM dimming. | Targeted at automotive interior lighting; includes enhanced EMI performance and extended temp range (–40°C to +125°C). | Choose MPQ4425AGU-AEC1-P for automotive-grade designs requiring qualification - differs in voltage rating, dimming interface, and qualification status. |
Compared with AL8862SP-13 and MPQ4425AGU-AEC1-P, the HV9967BK7-G provides higher input voltage capability (60V vs. 40V/36V), simpler single-resistor current programming, and self-powered operation - making it optimal for industrial and commercial AC/DC LED drivers where cost, board space, and thermal efficiency are prioritized over automotive qualification or ultra-high frequency.
Availability
HV9967BK7-G is available at Aetrix Electronics and suitable for RGB backlighting, architectural signage, and decorative LED strip lighting requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for HV9967BK7-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 delivering microcontrollers, analog, FPGA, and timing solutions with focus on reliability, longevity, and design simplicity.
The HV9967BK7-G belongs to Microchip's high-voltage LED driver product line, designed specifically for cost-sensitive, thermally constrained constant-current lighting applications requiring minimal external components and robust fault protection.
FAQ
What is the maximum input voltage supported by the HV9967BK7-G?
The HV9967BK7-G supports an absolute maximum input voltage of +65V at the SW pin, with recommended operational range of 8–60 VDC. This allows direct use with 48V industrial buses or rectified AC inputs, while the integrated 60V MOSFET eliminates need for external high-voltage switches in most LED driver topologies.
How does the HV9967BK7-G achieve ±3% LED current accuracy without feedback compensation?
The HV9967BK7-G uses average-mode current control that senses only the switch-source current at RSENSE, avoiding peak-to-average error inherent in peak-current mode. Combined with auto-zero circuitry canceling input offset and propagation delay, it maintains ±3% accuracy across line, load, and temperature - no external compensation components required.
Can the HV9967BK7-G drive an external high-voltage depletion-mode MOSFET?
Yes - the HV9967BK7-G can operate as a gate driver for external depletion-mode NFETs. Its VDD pin connects to the gate of the external FET, while SW drives the drain. This configuration extends voltage capability beyond 60V and enables linear-regulator-style operation for powering the IC itself from high-voltage rails.
What is the purpose of the RT pin on the HV9967BK7-G?
The RT pin sets the fixed off-time of the internal MOSFET via an external resistor to VDD. Off-time determines switching frequency and impacts inductor sizing, ripple, and efficiency. With RT = 100 kΩ, typical off-time is 40 µs - enabling ~250 kHz operation with standard inductors in buck configurations.
Does the HV9967BK7-G include thermal protection, and how does it behave?
Yes - the HV9967BK7-G features overtemperature protection with 145°C trip point and 20°C hysteresis. When junction temperature exceeds 145°C, SW switching halts until temperature falls to ~125°C, then resumes normal operation. This hiccup-style recovery prevents latch-up and supports safe thermal derating in enclosed fixtures.
HV9967BK7-G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 8V
- Voltage - Supply (Max):
- 60V
- Voltage - Output:
- -
- Current - Output / Channel:
- 750mA
- Frequency:
- -
- Dimming:
- PWM
- Applications:
- Backlight, Lighting, Signage
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN-EP (3x3)
HV9967BK7-G FAQ
1.How can I place an order for HV9967BK7-G through Aetrix?
Please submit a Request for Quotation (RFQ) for HV9967BK7-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 HV9967BK7-G reliable?
The price and inventory of HV9967BK7-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HV9967BK7-G is usually 5 days.
3.What payment methods are accepted for HV9967BK7-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HV9967BK7-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HV9967BK7-G?
HV9967BK7-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HV9967BK7-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 HV9967BK7-G?
For technical support, including HV9967BK7-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HV9967BK7-G requirements.
6.How does Aetrix verify that HV9967BK7-G is sourced from the original manufacturer or authorized distributors?
All HV9967BK7-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 HV9967BK7-G meets industry standards.
7.What is the process for return or replacement of HV9967BK7-G?
All HV9967BK7-G units undergo pre-shipment inspection (PSI). If there is an issue with HV9967BK7-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 HV9967BK7-G part is unused and in its original packaging.
Return procedure for HV9967BK7-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HV9967BK7-G Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
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BCR421UW6-7
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
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