Microchip HV9911NG-G-M901

Manufacturer No:

HV9911NG-G-M901

Manufacturer:

Microchip

Package:

16-SOIC (0.154, 3.90mm Width)

Description:

SWITCH-MODE LED DRIVER IC WITH HIGH CURRENT ACCURACY

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In Stock :Available

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HV9911NG-G-M901 information

Microchip HV9911NG-G-M901 technical specifications, attributes, parameters and parts with similar specifications to Microchip HV9911NG-G-M901.

Type
Parameter

Topology
Boost, SEPIC, Buck-Boost

+Vin min (V)
9.0

+Vin max (V)
250

Output Current
External FET

Dimming
PWM / Linear

Package
SOIC-16

Product Type
Off Line

VOUT
0

llim Typ (A)
0

llim Max (A)
0

lq Typ
1mA

Vfb (V)
0

VEN (V)
0

Oja (C/W)
82

Download datasheets and manufacturer documentation for Microchip HV9911NG-G-M901.

The HV9911 is a current mode control LED driver IC designed to control single switch PWM converters (buck, boost, buck-boost, or SEPIC), in a constant frequency or constant off-time mode. The controller uses a peak current 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 constant frequency mode, multiple HV9911s can be synchronized to each other, or to an external clock, using the SYNC pin. Programmable MOSFET current limit enables current limiting during input under voltage and output overload conditions. The IC also includes a 0.2A source and 0.4A sink GATE driver for high power applications. An internal 9.0 - 250V linear regulator powers the IC, eliminating the need for a separate power supply for the IC. HV9911 provides a TTL compatible, 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 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. The HV9911 based LED driver is ideal for RGB backlight applications with DC inputs. The HV9911 based LED lamp drivers can achieve efficiency in excess of 90% for buck and boost applications.

Buck
Boost
Buck-boost
SEPIC
Works with high side current sensing
Closed loop control of output current
High PWM dimming ratio
Internal 250V 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
Enable & PWM dimming
+0.2A/-0.4A GATE drive
Output short circuit protection
Output over voltage protection
Synchronization capability
Programmable MOSFET current limit

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