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HV9911NG-G-M934

Switch-Mode LED Driver IC w/ High Current Accuracy.

Manufacturer: Microchip Technology, Inc
Mfr.Part #: HV9911NG-G-M934
Datasheet: HV9911NG-G-M934 Datasheet (PDF)
Package/Case: SOIC-16
Product Type: Optoelectronics
RoHS:
Lifecycle: Active
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HV9911NG-G-M934 General Description

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.

Key Features

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

Microchip Technology, Inc Original Stock

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)LED Drivers	Mfr	Microchip Technology
Series	-	Package	Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
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)	9V
Voltage - Supply (Max)	250V	Voltage - Output	-
Current - Output / Channel	-	Frequency	100kHz, 350kHz
Dimming	PWM	Applications	Backlight
Operating Temperature	-40°C ~ 85°C (TA)	Mounting Type	Surface Mount
Package / Case	16-SOIC (0.154", 3.90mm Width)	Supplier Device Package	16-SOIC
Base Product Number	HV9911	Manufacturer	Microchip
Product Category	LED Lighting Drivers	RoHS	Details
Mounting Style	SMD/SMT	Output Current	-
Input Voltage, Min	9 V	Input Voltage, Max	250 V
Operating Frequency	350 kHz	Output Voltage	Adjustable
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 85 C
Features	PWM Dimming, Short Circuit and Thermal Protection	Brand	Microchip Technology
Input Voltage	9 V to 250 V	Moisture Sensitive	Yes
Number of Channels	1 Channel	Product Type	LED Lighting Drivers
Factory Pack Quantity	2600	Subcategory	Driver ICs
Supply Current - Max	1.5 mA