900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Dialog Semiconductor

iW1782 Datasheet Preview

iW1782 Datasheet

AC/DC Digital Quasi-Resonant PWM Controller

No Preview Available !

iW1782
Rapid Charge™ AC/DC Digital
Quasi-Resonant PWM Controller
1 Description
The iW1782 is a high performance AC/DC power supply controller for rapid charge that uses digital control technology
to build peak-current mode PWM flyback power supplies. The device operates in quasi-resonant mode to provide high
efficiency and a number of key built-in protection features. The iW1782 can achieve tight multi-level constant voltage
and multi-level constant current regulation without a traditional secondary-feedback circuit. It also eliminates the need
for loop compensation components while maintaining stability over all operating conditions.
The iW1782 is optimized to work with Dialog’s iW636 secondary-side controller for Qualcomm® Quick Charge™ 3.0
(QC3.0) technology, to achieve fast and smooth voltage transition upon request by mobile devices (MD). When paired
with the iW636, the iW1782 eliminates the discrete decoders on the primary side, minimizes the external component
count and simplifies system designs. The iW636 can communicate with the iW1782 through one opto-coupler for
all the necessary rapid charge information including output voltage requests, output current limits, output voltage
undershoot and output over-voltage.
Dialog’s innovative proprietary technology ensures that power supplies designed with the iW636 and iW1782 can
provide 5V/9V/12V output voltage configuration for QC2.0 and other proprietary protocols and 3.6V to 12V in 200mV
increments for QC3.0, with user-selected various output current limit combinations. Furthermore, the chipset can
achieve <10mW no-load power consumption at 5V2A output setting and fast dynamic load response in typical AC/DC
rapid charge adapter designs.
2 Features
● Supports rapid charge technologies such as
Qualcomm® Quick Charge™ 3.0 (QC3.0) technology
to provide 3.6V to 12V in 200mV increments with user-
selected various output current limit combinations
Proprietary optimized load adaptive maximum
constant frequency PWM switching with quasi-
resonant operation achieves best size, efficiency, and
common mode noise
● Proprietary secondary-to-primary digital
communication and built-in decoder eliminate discrete
decoder and significantly simplify system design
● Single opto-coupler for all the rapid charge information:
output voltage request, output current limit, output
voltage undershoot, and over-voltage protection
Tight multi-level constant-voltage and multi-level
constant-current regulation with primary-side feedback
and control
● Ultra-low no-load power consumption with lowest
system cost (<10mW at 230VAC with typical 5V2A
setting using Schottky diode rectifier; <20mW at
230VAC with typical 5V2A setting using synchronous
rectifier)
Multi-mode PWM/PFM control improves efficiency at
various load conditions
User-configurable 4-level cable drop compensation
independent of output voltage
● EZ-EMI® design enhances manufacturability
● Built-in single-point fault protections against output
short-circuit including soft short and half short, output
over-voltage, and output over-current
● SmartDefendersmart hiccup technology
helps address issues of soft shorts in cables and
connectors by effectively reducing the average output
power at fault conditions without latch
User-configurable external shutdown control
Fast dynamic load response (DLR) with secondary-
side load transient detection
No audible noise over entire operating range
3 Applications
Rapid-charging AC/DC adapters for smart phones,
tablets and other portable devices (3.6V-12V, 1A-3A).
Qualcomm® Quick ChargeTM 3.0 is a product of Qualcomm Technologies, Inc.
Product Summary
www.dialog-semiconductor.com
Rev. 1.3
1 of 6
11-August-2017
© 2017 Dialog Semiconductor




Dialog Semiconductor

iW1782 Datasheet Preview

iW1782 Datasheet

AC/DC Digital Quasi-Resonant PWM Controller

No Preview Available !

iW1782
Rapid Charge™ AC/DC Digital
Quasi-Resonant PWM Controller
L
+
N
VOUT
+
RTN
NTC
U1
iW1782
1 VSENSE
VCC 8
2 SD
GND 7
3 DLNK
OUTPUT 6
4 ASU
CS/CDC 5
+
RCDC
3 21
VCC DRV DIS
D- GND D+
456
U2
iW636
D+
D-
Figure 3.1 : iW1782 Typical Application Circuit for Multi-Level Output Voltage and Current
(Using iW636 as Secondary-Side Controller for QC3.0. Achieving < 10mW No-Load Power Consumption in
Typical 15W Design)
L
+
N
NTC
U1
iW1782
1 VSENSE
VCC 8
2 SD
GND 7
3 DLNK
OUTPUT 6
4 ASU
CS/CDC 5
+
RCDC
+
U3
iW673
1 DRAIN VIN 6
2 SOURCE VCC 5
3 OUT
GND 4
+
VOUT
RTN
U2
iW636
3 21
VCC DRV DIS
D- GND D+
456
D+
D-
Figure 3.2 : iW1782 Typical Application Circuit for Multi-Level Output Voltage and Current
(Using iW636 as Secondary-Side Controller for QC3.0 and iW673 as Synchronous Rectifier Controller
Achieving < 20mW No-Load Power Consumption in Typical 15W Design)
Product Summary
www.dialog-semiconductor.com
Rev. 1.3
2 of 6
11-August-2017
© 2017 Dialog Semiconductor


Part Number iW1782
Description AC/DC Digital Quasi-Resonant PWM Controller
Maker Dialog Semiconductor
Total Page 6 Pages
PDF Download

iW1782 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 iW1780 Rapid Charge AC/DC Digital Quasi-Resonant PWM Controller
Dialog Semiconductor
2 iW1781 AC/DC Digital Quasi-Resonant PWM Controller
Dialog Semiconductor
3 iW1782 AC/DC Digital Quasi-Resonant PWM Controller
Dialog Semiconductor
4 iW1788 Plus-Compatible Digital PWM AC/DC Controller
Dialog Semiconductor
5 iW1788-42 Plus-Compatible Digital PWM AC/DC Controller
Dialog Semiconductor





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy