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HV852K7-G
Microchip Technology
IC EL LAMP DRIVER 500HZ 10DFN
1748 Pcs New Original In Stock
EL Lamp Driver Controller 50Hz ~ 500Hz Yes 10-DFN (3x3)
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Minimum 1
Minimum 1
5.0 / 5.0
- (95 Ratings)
HV852K7-G
Product Overview
1339590
DiGi Electronics Part Number
HV852K7-G-DGManufacturer
Microchip Technology
HV852K7-G
Description
IC EL LAMP DRIVER 500HZ 10DFNInventory
1748 Pcs New Original In Stock
EL Lamp Driver Controller 50Hz ~ 500Hz Yes 10-DFN (3x3)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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HV852K7-G Technical Specifications
Category
Power Management (PMIC), Lighting, Ballast Controllers
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Type
EL Lamp Driver
Frequency
50Hz ~ 500Hz
Voltage - Supply
2.4V ~ 5V
Current - Supply
15.2 mA
Current - Output Source/Sink
-
Dimming
Yes
Operating Temperature
-25°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
10-WFDFN Exposed Pad
Supplier Device Package
10-DFN (3x3)
Base Product Number
HV852
Datasheet & Documents
PCN Assembly/Origin
Fab Site Addition 14/Aug/2014
HTML Datasheet
HV852K7-G-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Standard Package
3,300
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Le rapport qualité-prix est imbattable, je recommande sans hésiter.
Dec 02, 2025
Die Produkte sind präzise, langlebig und gut designt. DiGi Electronics ist mein bevorzugter Anbieter.
Dec 02, 2025
安心して利用できる企業です。アフターサービスが充実しており、価格も非常に良心的です。
Dec 02, 2025
Their price point is attractive, especially considering the quality and safety of their packaging.
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Frequently Asked Questions (FAQ)
What are the key design risks when replacing a legacy EL lamp driver like the HV852K7-G with a modern alternative such as the Texas Instruments TPS61089, and how can I ensure reliable operation across temperature extremes?
When replacing the HV852K7-G with a newer driver like the TPS61089, the primary risks include mismatched frequency response (HV852K7-G operates at 50Hz–500Hz, while many modern drivers target higher frequencies), incorrect voltage/current headroom for EL panel capacitance, and inadequate dimming control compatibility. The HV852K7-G’s low-frequency drive is critical for minimizing audible noise and maximizing EL panel lifespan. Additionally, ensure the replacement supports the same 2.4V–5V input range and provides sufficient output voltage (>100V AC typical) under load. Always validate startup behavior and dimming linearity across the full –25°C to 85°C range, as cold temperatures increase EL panel impedance and may cause latch-up or insufficient illumination in poorly matched designs.
Can the HV852K7-G safely drive multiple EL panels in parallel, and what layout considerations are critical to avoid oscillations or uneven brightness?
The HV852K7-G can drive multiple EL panels in parallel only if the total capacitive load remains within its drive capability—typically up to ~30 nF combined. Exceeding this risks overcurrent during switching transitions, leading to thermal stress or erratic frequency output. To maintain stability, use a star-ground topology for the high-voltage return paths, keep high-dV/dt traces short and away from feedback or dimming control lines, and place a small snubber (e.g., 100Ω + 100pF) across each panel to dampen ringing. Uneven brightness often stems from parasitic inductance differences; ensure symmetrical trace lengths and avoid daisy-chaining panels. Always test with worst-case panel tolerances (±20% capacitance) to confirm consistent illumination.
How does the HV852K7-G compare to the Supertex HV850 in terms of EMI performance and integration ease for space-constrained wearable designs?
The HV852K7-G offers superior integration over the older HV850, eliminating the need for external oscillators and reducing BOM count—critical for compact wearables. However, the HV850’s open-drain output stage allows finer control over rise/fall times, which can reduce EMI peaks by up to 6 dB compared to the HV852K7-G’s fixed-edge-rate driver. If EMI compliance (e.g., FCC Part 15) is a concern, pair the HV852K7-G with a grounded shield layer beneath the 10-DFN package and use a common-mode choke on the EL output. The HV852K7-G’s exposed pad also improves thermal performance in high-duty-cycle applications, but requires proper via stitching to the PCB ground plane to avoid localized heating that could degrade nearby components.
What failure modes should I anticipate if the HV852K7-G is operated near its maximum supply voltage (5V) with high ambient temperature, and how can I mitigate them?
Operating the HV852K7-G at 5V near 85°C ambient pushes the device toward its thermal and electrical limits, increasing the risk of premature aging due to elevated junction temperature and reduced MOSFET switching margin. This can manifest as gradual frequency drift, dimming non-linearity, or eventual latch-up during power cycling. Mitigate by derating the supply voltage to 4.5V when possible, ensuring adequate copper pour under the exposed pad (min. 4× thermal vias), and avoiding continuous 100% duty-cycle dimming. Also, verify that input bypass capacitance (≥1µF ceramic, X7R) is placed within 2mm of the VDD pin to suppress supply transients that exacerbate thermal stress under high load.
Is the HV852K7-G suitable for battery-powered IoT devices requiring ultra-low standby current, and how does its quiescent behavior impact system-level power budgeting?
While the HV852K7-G draws only 15.2 mA during active operation, it lacks a true shutdown mode, meaning it continuously consumes supply current even when the EL lamp is off—making it suboptimal for always-on IoT nodes with strict µA-level sleep currents. In battery-powered designs, this can dominate the power budget if the driver remains powered during sleep. To mitigate, use an external MOSFET to completely disconnect the HV852K7-G’s VDD from the supply during idle periods, controlled by the MCU. Ensure the enable signal meets the IC’s logic thresholds (VIH ≥ 1.8V at 3.3V supply) and add a small pull-down on the dimming pin to prevent floating states. For applications requiring <10µA sleep current, consider alternatives like the Analog Devices ADP1621 with enable functionality, though at the cost of added external components.
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DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
HV852K7-G CAD Models
Microchip Technology HV852K7-G PCB symbols & footprints
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