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PDF ACT4529 Data sheet ( Hoja de datos )
| Número de pieza | ACT4529 | |
| Descripción | 40V/3.0A CV/CC Buck Converter | |
| Fabricantes | Active-Semi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ACT4529 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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ACT4529
Rev 1, October 13th, 2015
40V/3.0A CV/CC Buck Converter Featuring QC2.0 ,USB Auto-Detect and USB-PD
FEATURES
Qualcomm® Quick Charge™ 2.0 Certified
40V Input Voltage Surge
6V-36V Operational Input Voltage
5.1V/9.1V/12.1V Output with +/-1% Accuracy
Up to 3.0A Output current
Constant Current Regulation Limit
QC2.0 Decoding + USB Auto-Detect + USB-PD
Type-C Support
Support Apple 2.4A, Samsung and BC1.2
Devices
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
8kV ESD HBM Protection on DP and DM
SOP-8EP Package
APPLICATIONS
Car Charger
Cigarette Lighter Adaptor (CLA)
Rechargeable Portable Device
CV/CC regulation DC/DC converter
GENERAL DESCRIPTION
ACT4529 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. This device has
QC2.0 built in to provide 5.1V/9.1V/12.1V outputs
as requested by attached portable devices. Besides
building in QC2.0 decoding, it also supports Apple,
Samsung and BC1.2 devices to charge at full
current rate. ACT4529 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.
ACT4529 has accurate output current limits under
constant current regulation to meet MFi
specification. It provides up to 3.0A output current
at 125kHz switching frequency. ACT4529 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
V/I Profile
6.0V to 40V
C1 C2
47μF 10μF
CSN HSB
IN SW
ACT4529
CSP
GND PDC DP DM
C3
22nF
Rcs
25mΩ
L1
47μH
C4 C5
C6
D1 22μF 220μF 2.2μF
SK54
I/O CC1 CC2
USB-PD Controller
5V/9V/12V
Vout
D-
D+
CC1
CC2
GND
Vout
12.1V
9.1V
5.1V
3.2V
Iout
2.65A
* Patent Pending
Innovative PowerTM
- 1 - www.active-semi.com
Copyright © 2015 Active-Semi, Inc.
1 page  
ELECTRICAL CHARACTERISTICS
(VIN = 12V, TA = 25°C, unless otherwise specified.)
ACT4529
Rev1, October 13th, 2015
Parameter
Maximum Duty Cycle
Switching Frequency
Soft-start Time
Out Voltage Ripples
VOUT Discharge Current
Symbol
Condition
Min Typ Max Units
99 %
-10% 125 +10% kHz
2.0 ms
Cout=470uF/22uF ceramic
80 mV
For high to lower voltage transi-
tions
60
mA
Voltage transition time for QC 2.0
transition or USB PD Type C
12V-5V
100 ms
Voltage transition time for QC 2.0
transition or USB PD Type C
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
ESD of DP, DM
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
HBM
4.9 5.15 5.4
V
8.7 9.1 9.5
11.6 12.1 12.6
160
30
8
1.5
2.0
10
0.8
5.5
V
V
°C
°C
kV
V
V
V
V
uA
Innovative PowerTM
- 5 - www.active-semi.com
Copyright © 2015 Active-Semi, Inc.
5 Page 
ACT4529
Rev1, October 13th, 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 = 1.5Ω
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 ACT4529.PDF ] | |
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