LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
MICROCHIP HV9912NG-G product image
  • HV9912NG-G thumbnail 1
  • HV9912NG-G thumbnail 2
  • HV9912NG-G thumbnail 3
  • Pinout
  • Footprint
Images for reference only

MICROCHIP HV9912NG-GRoHS

Manufacturer
MICROCHIP
MPN
HV9912NG-G
LCSC Part #
C642158
Packaging
SOIC-16
Customer #
Key Attributes
Switch-Mode LED Driver IC with High Current Accuracy and Hiccup Mode Protection
Datasheetpdf iconMICROCHIP HV9912NG-G
In-Stock: 77
77 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 3.1721$ 3.17
10+$ 2.7896$ 27.90
45+$ 2.5504$ 114.77
90+$ 2.3046$ 207.41
450+$ 2.194$ 987.30
900+$ 2.1468$ 1932.12
Standard Packaging45/Full Tube
Better price for more quantity?
$

Products Specifications

Show similar products (0) >
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerMICROCHIP
PackagingSOIC-16
Output Voltage-
FeaturesOver Voltage Protection;Short Circuit Protection;LED open-circuit protection
Frequency - Switching106kHz;580kHz
Switch Tube (Built-In/External)External
Voltage - Input(AC)-
Operating temperature-40℃~+125℃
TopologySEPIC;Buck;Boost
Number of Channels1
TypeDC-DC
Output Current-
Constant Current Accuracy2%
Voltage - Input(DC)9V~100V
Report an ErrorShow similar products (0) >

Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging45
Sales UnitPiece

Introduction

AI Translation

HV9912 is an LED driver IC designed to control single-switch PWM converters (buck, boost, buck-boost and SEPIC) in a Constant Frequency or Constant Off-time mode. The controller uses a peak Current Mode control scheme with programmable slope compensation and includes an internal transconductance amplifier to control the output current in closed loop, enabling high output current accuracy. In the case of buck and buck-boost converters, the output current can be sensed using a high-side current sensor like the HV7800. In the Constant Frequency mode, multiple HV9912 ICs can be synchronized with each other or with an external clock, using the SYNC pin. Programmable MOSFET current limit enables current limiting during Input Undervoltage and Output Overload conditions. The IC also includes a 0.2A source and 0.4A sink gate driver that makes the HV9912 suitable for high-power applications. An internal 90V linear regulator powers the IC, eliminating the need for a separate power supply for the IC. The IC also provides a FAULT output, which can be used to disconnect the LEDs in case of a Fault condition using an external disconnect FET. HV9912 also provides a TTL-compatible, low-frequency PWM dimming input that can accept an external control signal with a duty ratio of 0-100% and a frequency of up to a few kilohertz. The HV9912 includes hiccup protection from both short and open circuits, with automatic recovery after the Fault condition is cleared. The HV9912 is a pin-compatible replacement for HV9911. It can be used with existing HV9911 designs, which have input voltages of less than 90V, by changing R0VP1, ROVP and RT.

Features

AI Translation
  • Switch-mode Controller for Single-switch Drivers: - Buck - Boost - Buck-boost - SEPIC
  • Works with High-side Current Sensors
  • Closed-loop Control of Output Current
  • High Pulse-Width Modulation (PWM) Dimming Ratio
  • Internal 90V Linear Regulator (can be extended using external Zener Diodes)
  • Internal 2% Voltage Reference (0°C < TA < 85°C)
  • Constant Frequency or Constant Off-time Operation
  • Programmable Slope Compensation
  • Linear and PWM Dimming
  • +0.2A/-0.4A Gate Driver
  • Hiccup Mode Protection for both Short-circuit and Open-circuit Conditions
  • Output Overvoltage Protection
  • Synchronization Capability
  • Pin Compatible with HV9911

Applications

AI Translation
  • RGB Backlight Applications
  • General LED Lighting Applications
  • Battery-powered LED Lamps