|
|
PDF SG2825CDW Data sheet ( Hoja de datos )
| Número de pieza | SG2825CDW | |
| Descripción | HIGH - SPEED CURRENT - MODE PWM | |
| Fabricantes | Microsemi Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SG2825CDW (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
|
No Preview Available !
THE INFINITE POWER OF INNOVATION
SG1825C / SG2825C / SG3825C
HIGH-SPEED CURRENT-MODE PWM
PRODUCTION DATA SHEET
DESCRIPTION
The SG1825C is a high-performance pulse
width modulator optimized for high frequency
current-mode power supplies. Included in the
controller are a precision voltage reference,
micro power start-up circuitry, soft start, high-
frequency oscillator, wideband error amplifier,
fast current limit comparator, full double-pulse
suppression logic, and dual totem pole output
drivers. Innovative circuit design and an
advanced linear Schottky process result in
very short propagation delays through the
current limit comparator, logic, and output
drivers. This device can be used to
implement either current mode or voltage-
mode switching power supplies. It also is
useful as a series-resonant controller to
frequencies beyond 1MHz. The SG1825C is
specified for operation over the full military
ambient temperature range of -55°C to
125°C.
The SG2825C is characterized for the
industrial range of -25°C to 85°C, and the
SG3825C is selected for the commercial
range of 0°C to 70°C.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
INITIAL OSCILLATOR ACCURACY
15
Sample Size = 279
Mean 401.661
Std. Dev. = 3.8
10
KEY FEATURES
IMPROVED REFERENCE
INITIAL TOLERANCE (±1%
max.)
IMPROVED OSCILLATOR
INITIAL ACCURACY (±3% typ.)
IMPROVED STARTUP
CURRENT (500µA typ.)
PROP DELAY TO OUTPUTS
(50ns typ.)
10V TO 30V OPERATION
5.1V REFERENCE TRIMMED
TO ±1%
2MHZ OSCILLATOR
CAPABILITY
1.5A PEAK TOTEM-POLE
DRIVERS
U.V. LOCKOUT WITH
HYSTERESIS
NO OUTPUT DRIVER "FLOAT"
PROGRAMMABLE
SOFTSTART
DOUBLE-PULSE
SUPPRESSION LOGIC
WIDEBAND LOW-IMPEDANCE
ERROR AMPLIFIER
CURRENT-MODE OR
VOLTAGE-MODE CONTROL
WIDE CHOICE OF HIGH-
FREQUENCY PACKAGES
KEY FEATURES
5 AVAILABLE TO MIL-STD-883B
MICROSEMI LEVEL "S"
PROCESSING AVAIL.
0
390 395 400 405 410 415
Initial Oscillator Accuracy - KHz
PACKAGE ORDER INFO
TJ (°C)
N Plastic DIP
16-Pin
DW Plastic SOIC
16-Pin
Q Plastic LCC
20-Pin
RoHS Compliant / Pb-free RoHS Compliant / Pb-free
Transition DC: 0503
Transition DC: 0516
0 to 70
-25 to 85
-55 to 125
MIL-STD-883
DESC
SG3825CN
SG2825CN
-
-
-
SG3825CDW
SG2825CDW
-
-
-
SG32825CQ
SG2825CQ
-
-
-
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. SG3825CN-TR)
J LCeramic DIP
16-Pin
Ceramic LCC
20-Pin
SG3825CJ
SG282CJ
SG1825CJ
SG1825CJ/883B
SG1825CJ/DESC
-
-
SG1825CL
SG1825CL/883
SG1825CL/DESC
Copyright © 1994
Rev. 1.3a,2005-03-21
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1
1 page  
PRODUCT DATABOOK 1996/1997
SG1825C/SG2825C/SG3825C
HIGH-SPEED CURRENT-MODE PWM
NOT RECOMMENDED FOR NEW DESIGNS
BLOCK DIAGRAM
+9V
VREF
16
+VIN 15
GND 10
CLOCK 4
RT 5
CT 6
RAMP 7
E/A OUTPUT 3
N.I. INPUT 2
INV. INPUT 1
SOFTSTART 8
REFERENCE
REGULATOR
+ 4.0V
OSCILLATOR
1.25V
ERROR
9µA
S
RQ
Q
T
Q
FIGURE INDEX
Application Circuits
FIGURE #
1. HIGH-SPEED LAYOUT AND BYPASSING
2. MICROPOWER STARTUP
3. SOFTSTART FAST RESET
4. OSCILLATOR SYCHRONIZATION
5. OSCILLATOR FUNCTIONAL DIAGRAM
6. VOLTAGE AMPLIFIER CONNECTIONS
7. DRIVING SHIELDED CABLE
13 VC
11 OUTPUT A
14 OUTPUT B
12 POWER GND
+ 1.0V
+ 1.4V
9 ILIM/S.D.
Copyright © 1994
Rev. 1.3a
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet SG2825CDW.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SG2825CDW | HIGH - SPEED CURRENT - MODE PWM | Microsemi Corporation |
| 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 |