|
|
PDF MP4689 Data sheet ( Hoja de datos )
| Número de pieza | MP4689 | |
| Descripción | Power LED Driver | |
| Fabricantes | MPS | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MP4689 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
MP4689
The Future of Analog IC Technology
DESCRIPTION
The MP468 9 is a high voltage input step-down
switching regulator to d eliver a con stant current
of up to 1A to high power LEDs. It integrates a
high-side h igh voltage power MOSFET with a
current limit of 2.5A (typical value). The wide
4.5V to 10 0V input r ange acco mmodates a
variety of step-down application s, making it
ideal for a utomotive, industrial a nd general
lighting app lications. H ysteresis cu rrent mode
control is a pplied for very fast response, which
makes the 20kHz dimming frequency possible.
MPS’s pro prietary fee dback cont rol scheme
minimizes the number of external components
while delivering a LED c urrent with typical ±3%
accuracy.
The switching frequency is up to 1MHz, thus
allowing for small component size. The thermal
shut down, short circuit protection, and optional
output voltage limitatio n provide reliable, fault
tolerant ope rations. A 1 70µA quiescent current
allows its use in battery-powered applications.
The MP46 89 is available in S
exposed pad packages.
OIC8 with
100V Input, 1A High
Power LED Driver
FEATURES
• Wide 4.5V to 100V Operating Input Range
• No Output Capacitor Required
• ±3% LED Current Accuracy
• Hysteretic Control: No Compensation
• Up to 1MHz Switching Frequency
• Up to 20kHz Dimming Frequency
• Dedicated PWM Dimming Control Input
• Short circuit protection with integrated high
side MOSFET
• Optional Output Voltage Limitation
• Thermal shut down
• 200mV reference voltage for high efficiency
• Up to 95% Efficiency
• 170 µA Quiescent Current
• Available in SOIC8 with Exposed Pad
Packages
APPLICATIONS
• High Power LED Driver
• Automotive, Industry and General Lighting
• Constant Current Source
For MPS green status, please vis it MP S we bsite un der Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
PWM
Enable
DIM VIN
BST
EN
SW
FB GND
CBST
VIN
4.5V to 100V
CIN
D1 LO
VOUT
MP4689 Rev. 1.0
4/29/2011
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
1
http://www.Datasheet4U.com
1 page  
MP4689 – 100V INPUT, 1A HIGH POWER LED DRIVER
BLOCK DIAGRAM
IENS
EN
Reference
UVLO
Internal
Regulators
DIM
VFBH
FB
VFBL
200mV
Control
Logic
and
Protection
Circuits
IPK
R
Q
S
Adaptive Threshold
Adjustment Circuit
VFBH
VFBL
Figure 1—Function Block Diagram
VIN
BST
SW
GND
MP4689 Rev. 1.0
4/29/2011
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet MP4689.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MP4688 | Power LED Driver | MPS |
| MP4689 | Power LED Driver | MPS |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |