|
|
PDF ACT4527 Data sheet ( Hoja de datos )
| Número de pieza | ACT4527 | |
| Descripción | 40V/3.0A CV/CC Buck Converter | |
| Fabricantes | Active-Semi | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ACT4527 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
ACT4527
Rev 1, December 28th, 2015
40V/3.0A CV/CC Buck Converter Featuring USB-PD
FEATURES
USB-PD Support
40V Input Voltage Surge
4.5V-36V Operational Input Voltage
5.1V/9.1V/12.1V Output with +/-1% Accuracy
Up to 3.0A Output current
Constant Current Regulation Limit
Hiccup Mode Protection at Output Short
>90% Efficiency at Full Load
0.5mA Low Standby Input Current
5.7V/10.1V/13.5V Output Over-voltage
Protection for 5.1V/9.1V/12.1V Outputs
Cord Voltage Compensation
Meet EN55022 Class B Radiated EMI Standard
SOP-8EP Package
APPLICATIONS
Car Charger
Cigarette Lighter Adaptor (CLA)
Rechargeable Portable Device
CV/CC regulation DC/DC converter
GENERAL DESCRIPTION
ACT4527 is a wide input voltage, high efficiency
step-down DC/DC converter that operates in either
CV (Constant Output Voltage) mode or CC
(Constant Output Current) mode. ACT4527 has an
interface for USB-PD control via a tri-state digital
pin. Vout is 5.1V if this pin is floating, Vout is 9.1V
when this pin voltage is less than 0.8V and Vout is
12.1V while this pin voltage is more than 2.0V.
ACT4527 has accurate output current limits under
constant current regulation. It provides up to 3.0A
output current at 125kHz switching frequency.
ACT4527 utilizes adaptive drive technique to
achieve good EMI performance while main >90%
efficiency at full load for mini size CLA designs. It
also has output short circuit protection with hiccup
mode. The average output current is reduced to
below 6mA when output is shorted to ground. Other
features include output over voltage protection and
thermal shutdown.
This device is available in a SOP-8EP package and
require very few external components for operation.
Typical Application Circuit
4.5V to 40V
C1 C2
47ìF 10ìF
CSN HSB
C3
22nF
IN SW
ACT4527
CSP
GND PDC
D1
SK54L
L1
40ìH
C4
22ìF
Rcs
20mÙ
C5 C6
220ìF 2.2ìF
5V/9V/12V
Vout
CC1
CC2
GND
V/I Profile
* Patent Pending
Innovative PowerTM
I/O CC1 CC2
USB-PD Controller
Vout
12.1V
9.1V
5.1V
3.2V
Iout
3.3A
- 1 - www.active-semi.com
Copyright © 2015 Active-Semi, Inc.
1 page  
ACT4527
Rev 1, December 28th, 2015
ELECTRICAL CHARACTERISTICS
(VIN = 12V, TA = 25°C, unless otherwise specified.)
Parameter
Maximum Duty Cycle
Switching Frequency
Soft-start Time
Out Voltage Ripples
Symbol
Condition
Cout=220uF/22uF ceramic
Min Typ Max Units
99 %
-10% 125 +10% kHz
2.0 ms
80 mV
VOUT Discharge Current
For high to lower voltage transi-
tions
60
mA
Voltage transition time
12V-5V
100 ms
Voltage transition time
5V-12V
100 ms
Line Transient Response
Input 12V-40V-12V with 1V/us
slew rate, Vout=5V, Iload=0A
and 2.4A
4.75
5.25 V
Load Transient Response
Thermal Shut Down
Thermal Shut Down Hysteresis
PDC Floating
PDC High
PDC Low
PDC Maximum Voltage
PDC Drive Current
Vout=5V
80mA-1.0A-80mA load with
0.1A/us slew rate
Vout=9V
Vout=12V
80mA-1.0A-80mA load with
0.1A/us slew rate
80mA-1.0A-80mA load with
0.1A/us slew rate
4.9 5.15 5.4
V
8.7 9.1 9.5
V
11.6 12.1 12.6
160
30
1.5
2.0
10
0.8
5.5
V
°C
°C
V
V
V
V
uA
Innovative PowerTM
- 5 - www.active-semi.com
Copyright © 2015 Active-Semi, Inc.
5 Page 
ACT4527
Rev 1, December 28th, 2015
TYPICAL PERFORMANCE CHARACTERISTICS
(Schematic as show in typical application circuit, Ta = 25°C, unless otherwise specified)
Output Over Voltage (5V Vout)
Start up into CC Mode
CH1
CH2
CH1: VOUT, 1V/div
CH2: SW, 10V/div
TIME: 1ms/div
Load Transient (80mA-1A-80mA)
Vin=12V, Vout=5V
CH1
VOUT = 5.1V
RLORD = 1.5Ù
IOUT = 2.65A
VIN = 12V
CH2
CH3
CH1: VIN, 10V/div
CH2: VOUT, 2V/div
CH3: IOUT, 2A/div
TIME: 400µs/div
Load Transient (1A-2.4A-1A)
Vin=12V, Vout=5V
CH1
CH1
CH2
CH1: VOUT, 100mV/div
CH2: IOUT, 1A/div
TIME: 400us//div
Load Transient (80mA-1A-80mA)
Vin=12.6V, Vout=12V
CH1
CH2
CH1: VOUT, 200mV/div
CH2: IOUT, 1A/div
TIME: 400us//div
Load Transient (1A-2.4A-1A)
Vin=12.6V, Vout=12V
CH1
CH2
CH1: VOUT, 200mV/div
CH2: IOUT, 1A/div
TIME: 400us//div
Innovative PowerTM
CH2
- 11 -
CH1: VOUT, 200mV/div
CH2: IOUT, 1A/div
TIME: 400us//div
www.active-semi.com
Copyright © 2015 Active-Semi, Inc.
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet ACT4527.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ACT4523 | Wide-Input Sensorless CC/CV Step-Down DC/DC Converter | Active-Semi |
| ACT4523A | Wide-Input Sensorless CC/CV Step-Down DC/DC Converter | Active-Semi |
| ACT4524 | 40V/3.5A Buck Converter | Active-Semi |
| ACT4525 | 40V/3.5A CV/CC Buck Converter | Active-Semi |
| 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 |