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IW1816 데이터시트 PDF




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부품번호 IW1816 기능
기능 Off-Line Digital Green-Mode PWM Controller
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IW1816 데이터시트, 핀배열, 회로
iW1816
Off-Line Digital Green-Mode PWM Controller
Integrated with Power BJT and OTP
1 Description
The iW1816 is a high performance AC/DC power supply control device which uses digital control technology to build
peak current mode PWM flyback power supplies. This device includes an internal power BJT and operates in quasi-
resonant mode to provide high efficiency along with a number of key built-in protection features while minimizing the
external component count, simplifying EMI design, and lowering the total bill of material cost. The iW1816 removes the
need for secondary feedback circuit while achieving excellent line and load regulation. It also eliminates the need for
loop compensation components while maintaining stability in all operating conditions. The pulse-by-pulse waveform
analysis allows for a loop response that is much faster than traditional solutions, resulting in improved dynamic load
response for both one-time and repetitive load transients. The built-in power limit function enables optimized transformer
design in universal off-line applications and allows for a wide input voltage range.
Dialog’s innovative proprietary technology ensures that power supplies built with the iW1816 can achieve highest
average efficiency, lowest standby power consumption, and fast smooth startup with a wide range of output voltage (5V,
12V and above) and capacitive loads (from 330μF to 6,000μF).
2 Features
● PrimAccurateTM primary-side feedback eliminates
Quasi-resonant operation for highest overall efficiency
opto-isolators and simplifies design
EZ-EMI® design easily meets global EMI standards
Internal 800-V bipolar junction transistor (BJT)
Very tight constant voltage and constant current
Adaptively controlled soft start-up enables fast and
regulation with primary-side-only feedback
smooth start-up for a wide range of output voltage (5V,
12V and above) and capacitve loads up to 6,000μF
No external compensation components required
64kHz PWM switching frequency
Built-in single-point fault protections against output
short circuit, output over-voltage, and current-sense-
No-load power consumption < 30mW at 230VAC with
typical application circuit
resistor short-circuit faults
Built-in over-temperature protection (OTP)
Fast dynamic load response for both one-time and
repetitive load transients
● No audible noise over entire operating range
Adaptive multi-mode PWM/PFM control improves
efficiency
3 Applications
Low-power AC/DC power supply for smart meters,
motor control, home appliances, networking devices
and industrial applications
● Linear AC/DC replacement
Datasheet
www.dialog-semiconductor.com
Rev. 1.0
1 of 18
30-Jun-2016
© 2016 Dialog Semiconductor




IW1816 pdf, 반도체, 판매, 대치품
iW1816
Off-Line Digital Green-Mode PWM Controller
Integrated with Power BJT and OTP
5 Absolute Maximum Ratings
Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded. For
maximum safe operating conditions, refer to Electrical Characteristics in Section 7.0. (TA = 25°C, unless otherwise
noted). Proper design precautions must be made to ensure that the internal die junction temperature of the iW1816
does not exceed 150°C. Otherwise permanent damage to the device may occur.
Parameter
DC supply voltage range (pin 4, ICC = 20mA max)
Continuous DC supply current at VCC pin (VCC = 15V)
VSENSE input (pin 6, IVsense ≤ 10mA)
ISENSE input (pin 7)
ESD rating per JEDEC JESD22-A114
Latch-up test per JESD78A
Collector-Emitter breakdown voltage
(Emitter and base shorted together; IC = 1mA, REB = 0Ω)
Collector current1
Collector peak current1 (tp < 1ms)
Maximum junction temperature
Storage temperature
Lead temperature during IR reflow for ≤ 15 seconds
Symbol
VCC
ICC
VCES
IC
ICM
TJMAX
TSTG
TLEAD
Value
-0.3 to 18
20
-0.7 to 4.0
-0.3 to 4.0
±2,000
±100
800
1.5
3
150
-55 to 150
260
Units
V
mA
V
V
V
mA
V
A
A
°C
°C
°C
Notes:
Note 1: Limited by maximum junction temperature.
6 Thermal Characteristics
Parameter
Thermal Resistance Junction-to-Ambient1
Thermal Resistance Junction-to-GND pin (pin 5)2
Thermal Resistance Junction-to-Collector pin (pin 1)2
Thermal Shutdown Threshold3
Thermal Shutdown Recovery3
Notes:
Symbol
θJA
ψJB
ψJ-BJT
TSD
TSD-R
Value
132
71
49
150
100
Units
°C/W
°C/W
°C/W
°C
°C
1. θJA is measured in a one-cubic-foot natural convection chambe.
2. ψJB [Psi Junction to Board] provides an estimation of the die junction temperature relative to the PCB [Board] surface
temperature. ψJ-BJT [Psi Junction to Collector pin] provides an estimation of the die junction temperature relative to the collector
pin [internal BJT Collector] surface temperature. ψJB is measured at the ground pin (pin 5) without using any thermal adhesives..
See Section 10.14 for more information.
3. These parameters are typical and they are guaranteed by design.
Datasheet
www.dialog-semiconductor.com
Rev. 1.0
4 of 18
30-Jun-2016
© 2016 Dialog Semiconductor

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IW1816 전자부품, 판매, 대치품
iW1816
Off-Line Digital Green-Mode PWM Controller
Integrated with Power BJT and OTP
8 Typical Performance Characteristics
4.58 12.0
4.54 11.6
4.50 11.2
4.46 10.8
4.42 10.4
4.38-50 -25 0 25 50 75 100 125
Ambient Temperature (ºC)
Figure 8.1 : VCC UVLO vs. Temperature
150
70
67
64
61
10.0-50 -25 0 25 50 75 100 125 150
Ambient Temperature (ºC)
Figure 8.2 : Start-Up Threshold vs. Temperature
2.010
2.006
2.002
1.998
58 1.994
55-50 -25 0 25 50 75 100 125 150
Ambient Temperature (ºC)
Figure 8.3 : Switching Frequency vs. Temperature
2.5
1.990-50 -25 0 25 50 75 100 125 150
Ambient Temperature (ºC)
Figure 8.4 : Internal Reference vs. Temperature
2.0
1.5
1.0
0.5
0.00.0
3.0 6.0
VCC (V)
9.0
12.0
Figure 8.5 : VCC vs. VCC Supply Start-up Current
Notes:
1. Operating frequency varies based on the load conditions, see Section 10.6 for more details.
Datasheet
Rev. 1.0
www.dialog-semiconductor.com
7 of 18
30-Jun-2016
© 2016 Dialog Semiconductor

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