|
|
PDF ISL8130 Data sheet ( Hoja de datos )
| Número de pieza | ISL8130 | |
| Descripción | Advanced Single Universal Pulse-Width Modulation (PWM) Controller | |
| Fabricantes | Intersil | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ISL8130 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
|
No Preview Available !
DATASHEET
ISL8130
Advanced Single Universal Pulse-Width Modulation (PWM) Controller
FN7954
Rev.4.00
Mar 24, 2017
The ISL8130 is a versatile controller that integrates control,
output adjustment, monitoring, and protection functions into a
single package for synchronous Buck, standard Boost, SEPIC,
and Flyback topologies.
The ISL8130 provides simple, single feedback loop, voltage
mode control with fast transient response. The output voltage
of the converter can be precisely regulated to as low as 0.6V.
The switching frequency is adjustable from 100kHz to 1.4MHz.
The error amplifier features a 15MHz gain-bandwidth product
and 6V/µs slew rate that enables fast transient response. The
PWM duty cycle ranges from 0% to 100% in transient
conditions. The capacitor from the ENSS pin to ground sets
soft-start slew rate.
The ISL8130 monitors the output voltage and generates a
power-good (PGOOD) signal when soft-start sequence is
complete and the output is within regulation. A built-in,
overvoltage protection circuit prevents the output voltage from
going above typically 115% of the set point. For a Buck and
Buck-Boost configuration, protection from overcurrent
conditions is provided by monitoring the rDS(ON) of the upper
MOSFET to inhibit the PWM operation appropriately. This
approach improves efficiency by eliminating the need for a
current sensing resistor. For other topologies, overcurrent
protection is achieved using a current sensing resistor.
Features
• Universal controller for multiple DC/DC converters
• Wide input range
- 4.5V to 5.5V
- 5.5V to 28V
• Programmable soft-start
• Supports pre-biased load applications
• Resistor-selectable switching frequency
- 100kHz to 1.4MHz
• External reference tracking mode
• Fast transient response
- High-bandwidth error amplifier
• Extensive circuit protection functions
- Overvoltage, overcurrent, over-temperature
• Pb-free (RoHS compliant)
Applications
• Power supplies for microprocessors/ASICs
• Ethernet routers and switchers
• Medical instrument power supplies
Related Literature
• For a full list of related documents, visit our website
- ISL8130 product page
5.6V to 16V
C1
C2
VIN VCC5
C3 C4
PVCC
C5
R1 499Ω
C7
0.1µF
ENSS
MONITOR AND
PROTECTION
RT
47.5kΩ PGOOD
OSC
R2 CDEL
0.1µF
REF
C8 SGND
-
+
FB
+
-
OCSET
ISEN
Rcs
5mΩ
L1
LGATE 10µH
BOOT
UGATE
PHASE
D1
C9 C10
Q1 220µF x 2
R3
3.32kΩ
10kΩ
R6
C15
470pF
C11 COMP
470pF
R5 C12
R4 12.1kΩ 47nF
174kΩ
REFOUT REFIN
C14
2.2µF
C6
32V
FIGURE 1. BOOST CONVERTER
FN7954 Rev.4.00
Mar 24, 2017
Page 1 of 23
1 page  
ISL8130
Typical Step Down DC/DC Application Schematic
5.5V to 27V
C1
C2
C3
C7
0.1µF
R2
C8
R3
ENSS
RT
PGOOD
CDEL
SGND
FB
MONITOR AND
PROTECTION
OSC
REF
+
-
+-+-
C11
R5 C12
R4
C4 C5
OCSET R1
BOOT
UGATE
PHASE
ISEN
Q1
LGATE
PGND
Q2
D1
C9
REFIN
REFOUT
C6
L1
C10
FIGURE 4. TYPICAL STEP DOWN DC/DC APPLICATION SCHEMATIC
Typical Standard Boost DC/DC Application Schematic
5.6V TO 16V
C7
0.1µF
C1
R2
C8
R3
C2
VIN VCC5
C3
PVCC
ENSS
RT
MONITOR AND
PROTECTION
PGOOD
OSC
CDEL
REF
SGND
FB
+
-
+-+-
C5
C4
R1
OCSET
ISEN
Rcs
LGATE
L1
BOOT
UGATE
PHASE
Q1
C11 COMP
R5 C12
REFOUT REFIN
C14
C9
C6
D1
C10
R4
FIGURE 5. TYPICAL STANDARD BOOST DC/DC APPLICATION SCHEMATIC
VOUT
32V
FN7954 Rev.4.00
Mar 24, 2017
Page 5 of 23
5 Page 
ISL8130
Typical Performance Curves Oscilloscope plots are taken using the ISL8130EVAL1Z evaluation board for buck converter or
ISL8130EVAL2Z for boost converter, VIN = 12V, VOUT = 5V for buck converter or VOUT = 32V for boost converter unless otherwise noted. (Continued)
1.15
12
1.05
0.95
11
10
9
0.85
-40
-15 10
35
TEMPERATURE (°C)
60
FIGURE 15. IOCSET vs TEMPERATURE
85
8
-40 -15 10 35 60
TEMPERATURE (°C)
85
FIGURE 16. SOFT-START CURRENT, ISS vs TEMPERATURE
1.25
1.10
0.95
0.80
0.65
0.50
0.50
0.65
0.80
0.95
VREFIN (V)
FIGURE 17. VFB vs VREFIN
1.10
1.25
2.2
2.1
2.0
1.9
1.8
-40
-15 10 35
TEMPERATURE (°C)
60
85
FIGURE 18. CDEL CURRENT FOR PGOOD, ICDEL vs TEMPERATURE
VIN
EN/SS
VOUT
VIN
EN/SS
VOUT
PHASE
FIGURE 19. SOFT-START WAVEFORM, NO PRE-BIASED, BUCK
CONVERTER
PHASE
FIGURE 20. SOFT-START WAVEFORM, PRE-BIASED, BUCK CONVERTER
FN7954 Rev.4.00
Mar 24, 2017
Page 11 of 23
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet ISL8130.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ISL8130 | Advanced Single Universal Pulse-Width Modulation (PWM) Controller | Intersil |
| ISL81334 | (ISL41334 / ISL81334) Dual Protocol Transceivers |  Intersil Corporation |
| ISL81387 | (ISL41387 / ISL81387) Dual Protocol (RS-232/RS-485) Transceivers | Intersil 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 |