900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




  Microchip Technology Semiconductor Electronic Components Datasheet  

HV9961 Datasheet

LED Driver

No Preview Available !

HV9961
LED Driver with Average-Current Mode Constant-Current Control
Features
• Fast Average Current Control
• Programmable Constant Off-time Switching
• Linear Dimming Input
• PWM Dimming Input
• Output Short-circuit Protection with Skip Mode
• –40°C to +125°C Ambient Operating
Temperature
• Pin-compatible with HV9910B
Applications
• DC/DC or AC/DC LED Driver Applications
• LED Backlight Driver for LCD Displays
• General Purpose Constant-current Source
• LED Signage and Displays
• Architectural and Decorative LED Lighting
• LED Street Lighting
General Description
The HV9961 is an Average-Current mode
constant-current control LED driver IC operating in a
constant Off-time mode. Unlike the HV9910B, this
control IC does not produce a peak-to-average error.
This greatly improves accuracy as well as the line and
load regulations of the LED current without any need
for loop compensation or high-side current sensing. Its
output LED current accuracy is ±3%.
The IC is equipped with a current limit comparator for
Hiccup mode output short-circuit protection.
The HV9961 can be powered from an 8V–450V supply.
It has a PWM dimming input that accepts an external
control TTL-compatible signal. In addition, the output
current can be programmed by an internal 275 mV
reference or controlled externally through a 0V–1.5V
linear dimming input.
The HV9961 is pin-to-pin compatible with HV9910B,
and it can be used as a drop-in replacement for many
applications to improve LED current accuracy and
regulation.
Package Types
16-lead SOIC
(Top view)
VIN 1
8-lead SOIC
(Top view)
NC 2
NC 3
CS 4
VIN 1
8 RT
GND 5
CS 2
7 LD
NC 6
GND 3
6 VDD
NC 7
GATE 4
5 PWMD GATE 8
See Table 2-1 for pin information.
16 NC
15 NC
14 RT
13 LD
12 VDD
11 NC
10 NC
9 PWMD
2017 Microchip Technology Inc.
DS20005588A-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

HV9961 Datasheet

LED Driver

No Preview Available !

HV9961
Functional Block Diagram
VIN
LD
CS
Regulator
0.15/0.20V
MIN (VLD • 0.185, 0.275V)
Auto-REF
L/E
Blanking
Average Current
Control Logic
IN
OUT
UVLO
POR
GND
0.44V
Hiccup
HV9961
RQ
SQ
CLK
TOFF
Timer
400µs
i
Current
Mirror
VDD
GATE
PWMD
RT
DS20005588A-page 2
2017 Microchip Technology Inc.


Part Number HV9961
Description LED Driver
Maker Microchip
PDF Download

HV9961 Datasheet PDF






Similar Datasheet

1 HV9961 LED Driver
Microchip
2 HV9961 LED Driver ICs
Supertex
3 HV9963 Closed Loop LED Driver
Supertex
4 HV9964 CCM Boost LED Driver
Supertex
5 HV9966 Boost LED Driver
Supertex
6 HV9967B Integrated LED Driver
Supertex





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy