Microchip HV9967B Manual

Microchip Ikke kategoriseret HV9967B

Læs gratis den danske manual til Microchip HV9967B (14 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 19 personer og har en gennemsnitlig bedømmelse på 4.8 stjerner ud af 10 anmeldelser. Har du et spørgsmål om Microchip HV9967B, eller vil du spørge andre brugere om produktet?

Download PDF
Side 1/14
2020 Microchip Technology Inc. DS20005734A-page 1
HV9967B
Features
• 3% Accurate LED Current
• 60V, 0.8Ω Integrated MOSFET
• Low Sensitivity to External Component Variation
• Single-Resistor LED Current Setting
• Fixed Off-Time Control
• PWM Dimming Input
• Output Short-Circuit Protection with Skip Mode
• Overtemperature Protection
Applications
• DC/DC or AC/DC LED Drivers
• RGB Backlighting Drivers for Flat Panel Displays
• General Purpose Constant-Current Source
• Signage and Decorative LED Lighting
• Chargers
General Description
The HV9967B is an Average-mode current control LED
driver IC operating in a Constant Off-time mode.
The IC features an integrated 60V, 0.8Ω MOSFET that
can be used as a stand-alone buck converter switch or
connected as a source driver for driving an external
high-voltage Depletion-mode MOSFET. The HV9967B
is powered through its switching output when the
integrated switch is off. Therefore, the same external
MOSFET can be used as a high-voltage linear
regulator for powering the IC.
The LED current is programmed with one external
resistor. The Average-mode current control method
does not produce a peak-to-average error. This greatly
improves the current accuracy as well as the line and
load regulations of the LED current without any need
for loop compensation or direct sensing of the LED
current at a high-voltage potential. The auto-zero circuit
cancels the effects of the input offset voltage and of the
propagation delay of the current sense comparator.
Package Types
8-lead MSOP
(Top view)
8-lead DFN
(Top view)
GND
SW
RSENSE
PGND
PWMD
VDD
AGND
RT
NC
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
SW
RSENSE
PGND
PWMD
VDD
AGND
RT
NC
See Table 2-1 for pin information.
Integrated LED Driver with Average-Mode Current Control
HV9967B
DS20005734A-page 2 2020 Microchip Technology Inc.
Functional Block Diagram
R
S
Q
Q
T
OFF
Timer
SW
0.8ms
RT
VDD
POR
SET
V
CS
REG
UVLO
OTP
4.35V
100kΩ
i
RSENSE
PWMD
PGND
AGND
HV9967B
L/E
Blanking
Average
Current
Control Logic
OUT
IN
0.4V
V
CS
PGND
Short-Circuit
Overcurrent
Comparator
Hiccup Time

Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: HV9967B

Har du brug for hjælp?

Hvis du har brug for hjælp til Microchip HV9967B stil et spørgsmål nedenfor, og andre brugere vil svare dig


Ikke kategoriseret Microchip Manualer

Microchip

Microchip AT7913 Manual

1 September 2025
Microchip

Microchip ATmega1281 Manual

19 Juli 2025
Microchip

Microchip ATtiny461 Manual

19 Juli 2025
Microchip

Microchip ATxmega128D3 Manual

19 Juli 2025
Microchip

Microchip ATxmega128D4 Manual

19 Juli 2025
Microchip

Microchip ATTINY28 Manual

19 Juli 2025
Microchip

Microchip ATTINY861 Manual

19 Juli 2025
Microchip

Microchip ATmega1280 Manual

19 Juli 2025
Microchip

Microchip ATtiny84A Manual

19 Juli 2025
Microchip

Microchip ATmega645P Manual

19 Juli 2025

Ikke kategoriseret Manualer

Nyeste Ikke kategoriseret Manualer

Elektrobock

Elektrobock PT44 Manual

14 September 2025
BSS Audio

BSS Audio FDS-366T Manual

14 September 2025
Systemair

Systemair Airline R-114 Manual

14 September 2025
IFM

IFM SU2031 Manual

14 September 2025
Morel

Morel Tempo Ultra Integra 502 Manual

14 September 2025
IMC Networks

IMC Networks 232CL9R Manual

14 September 2025
Varta

Varta Speed Charger 57955 Manual

14 September 2025
Melissa & Doug

Melissa & Doug 9336 Manual

14 September 2025
Opus

Opus dataPREDATOR Manual

13 September 2025
Varta

Varta Wireless Power Bank 20000 57909 Manual

13 September 2025