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ISL6731B の電気的特性と機能

ISL6731BのメーカーはIntersilです、この部品の機能は「Power Factor Correction Controllers」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL6731B
部品説明 Power Factor Correction Controllers
メーカ Intersil
ロゴ Intersil ロゴ 




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ISL6731B Datasheet, ISL6731B PDF,ピン配置, 機能
DATASHEET
Power Factor Correction Controllers
ISL6731A, ISL6731B
The ISL6731A and ISL6731B are active power factor
correction (PFC) controller ICs that use a boost topology. The
controllers are suitable for AC/DC power systems up to 2kW
and over the universal line input.
The ISL6731A and ISL6731B operate in Continuous Current
Mode (CCM). Accurate input current shaping is achieved with a
current error amplifier. A patent pending breakthrough
negative capacitance technology minimizes zero crossing
distortion and reduces the magnetic components size. The
small external components result in lower design cost without
sacrificing performance.
The internally clamped 12.5V gate driver delivers 1.5A peak
current to the external power MOSFET. The ISL6731A and
ISL6731B provide a highly reliable system that is fully
protected. Protection features include cycle-by-cycle
overcurrent, over power limit, over-temperature, input
brownout, output overvoltage and undervoltage protection.
The ISL6731A and ISL6731B provide excellent power
efficiency and transitions into a power saving skip mode
during light load conditions, thus improving efficiency
automatically. The ISL6731A and ISL6731B can be shut down
by pulling the FB pin below 0.5V or grounding the BO pin.
Two switching frequency options are provided. The ISL6731B
switches at 62kHz, and the ISL6731A switches at 124kHz.
Related Literature
AN1884, "ISL6731AEVAL1Z and ISL6731BEVAL1Z: Boost
CCM PFC for 300W Universal Input Adaptors"
AN1885, “ISL6731AEVAL2Z and ISL6731BEVAL2Z: High
Performance Boost CCM PFC Front End for Server Power
Applications”
Features
• Reduced component size requirements
- Enables smaller, thinner AC/DC adapters
- Choke and cap size can be reduced
- Lower cost of materials
• Excellent power factor and THD over line and load
- CCM mode with negative capacitance generator for
smaller EMI filter and improved performance
- Built-in current amplifier with flexibility of gain change
• Better light-load efficiency
- Automatic pulse skipping with programmable threshold
- Programmable or automatic shutdown
• Highly reliable design
- Cycle-by-cycle current limit
- Input average power limit
- OVP and OTP protection
- Input brownout protection
• Small 14 Ld SOIC package
Applications
• Desktop computer AC/DC adaptor
• Laptop computer AC/DC adaptor
• TV AC/DC power supply
• AC/DC brick converters
VLINE
VI
+ VOUT
VCC
ISEN
GATE
ICOMP
OVP
VIN ISL6731A FB
GND
COMP
BO SKIP VREG
FIGURE 1. TYPICAL APPLICATION
100
95
90
85
80
75
70
65
60
0
ISL6731A, SKIP
ISL6731A, NON-SKIP
20 40 60
OUTPUT POWER (%)
FIGURE 2. PFC EFFICIENCY
80
100
February 13, 2015
FN8582.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2014, 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.

1 Page





ISL6731B pdf, ピン配列
ISL6731A, ISL6731B
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP.
RANGE (°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL6731AFBZ
ISL 6731AFBZ
-40 to +125
14 Ld SOIC
M14.15
ISL6731BFBZ
ISL 6731BFBZ
-40 to +125
14 Ld SOIC
M14.15
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device information page for ISL6731A, ISL6731B. For more information on MSL please see techbrief
TB363.
TABLE 1. KEY DIFFERENCES IN FAMILY OF ISL6731
VERSION
ISL6731A
ISL6731B
Switching Frequency
124kHz
62kHz
Submit Document Feedback
3
FN8582.1
February 13, 2015


3Pages


ISL6731B 電子部品, 半導体
Application Schematics (Continued)
Typical 85W Application Schematic
P1 AC1
F1 3.15A
UNIVERSAL INPUT
90~265Vac
C2
100n
P4 AC2
CMT1
L4
S3KB-TP
C3D04060E
S3KB-TP
S3KB-TP
D1
3 1 DC+
D3 D4
2.2m L2
D2
R1 IPP60R600C6
2M Q1
1
C3
330n
R2
R3
2M
D5 D6
2.2
R4
R28 51k
S3KB-TP
S3KB-TP
D8
S1M
D7
S1M
R8
470k
R11
470k
C7
1u
R9
2.1k
C11
470p
R13
5.76k
C13
220p
0.22
C8
220n
DZ1
3.3V
R14
C20
47n
5.36k
C9
1u VCC
C10
6.8n
U1
VREG Lin.Reg. VCC
4 ICOMP
UVLO LOGIC
3
I MIRROR
ISEN 2:1
CEQ OTP
Gen
Vin*C
I* gmI*= 4*BO*BO
PWM
GATE 14
GND 2
OVP 7
5 VIN
+
C SKIP OPL
2.5V
gm FB 9
-
BO
SKIP COMP
ISL6731A
R6
3.3M
R10
3.3M
69.8K
R22
C16
1n R19
42.2k
C14
470n
R18
68k
C18
2.2u
C15
100n
VOUT
TP9
P2
C1 390V
56u
450V
P3
TP10
VCC P6
GND P7

6 Page



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共有リンク

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部品番号部品説明メーカ
ISL6731A

Power Factor Correction Controllers

Intersil
Intersil
ISL6731B

Power Factor Correction Controllers

Intersil
Intersil


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