ISL6730B.pdf 데이터시트 (총 19 페이지) - 파일 다운로드 ISL6730B 데이타시트 다운로드

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Power Factor Correction Controllers
ISL6730A, ISL6730B, ISL6730C, ISL6730D
The ISL6730A, ISL6730B, ISL6730C, ISL6730D are active
power factor correction (PFC) controller ICs that use a boost
topology. (ISL6730B, ISL6730C, ISL6730D are Coming Soon.)
The controllers are suitable for AC/DC power systems, up to
2kW and over the universal line input.
The ISL6730A, ISL6730B, ISL6730C, ISL6730D are operated
in continuous current mode. 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 a low cost design
without sacrificing performance.
The internally clamped 12.5V gate driver delivers 1.5A peak
current to the external power MOSFET. The ISL6730A,
ISL6730B, ISL6730C, ISL6730D 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 ISL6730A, ISL6730B provide excellent power efficiency
and transitions into a power saving skip mode during light load
conditions, thus improving efficiency automatically. The
ISL6730A, ISL6730B, ISL6730C, ISL6730D can be shut down
by pulling the FB pin below 0.5V or grounding the BO pin. The
ISL6730C, ISL6730D have no skip mode.
Features
• Reduce component size requirements
- Enables smaller, thinner AC/DC adapters
- Choke and cap size can be reduced by 66%
- Lower cost of materials
• Excellent power factor over line and load regulation
- Internal current compensation
- CCM Mode with Patent pending IP for smaller EMI filter
• Better light load efficiency
- Automatic pulse skipping
- Programmable or automatic shutdown
• High reliable design
- Cycle-by-cycle current limit
- Input average power limit
- OVP and OTP protection
- Input brownout protection
• Small 10 Ld MSOP package
Applications
• Desktop computer AC/DC adaptor
• Laptop computer AC/DC adaptorhttp://www.DataSheet4U.net/
Two switching frequency options are provided. The ISL6730B,
ISL6730D switch at 62kHz, and the ISL6730A, ISL6730C
switch at 124kHz.
• TV AC/DC power supply
• AC/DC brick converters
VLINE
VI
+ VOUT
ISEN
ICOMP
VIN
VCC
GATE
GND
ISL6730 FB
COMP
BO VREG
FIGURE 1. TYPICAL APPLICATION
100
95
90
85
80
75
70
65
60
0
ISL6730A, SKIP
ISL6730C
20 40 60
OUTPUT POWER (W)
FIGURE 2. PFC EFFICIENCY
TABLE 1. KEY DIFFERENCES IN FAMILY OF ISL6730
VERSION
ISL6730A ISL6730B ISL6730C
Switching Frequency
124kHz
62kHz
124kHz
Skip Mode
Yes-Fixed
Yes-Fixed
No
ISL6730D
62kHz
No
80
100
February 26, 2013
FN8258.0
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 2013. 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.
datasheet pdf - http://www.DataSheet4U.net/

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ISL6730A, ISL6730B, ISL6730C, ISL6730D
Pin Configuration
ISL6730A, ISL6730B, ISL6730C, ISL6730D
(10 LD MSOP)
TOP VIEW
GND 1
ISEN 2
ICOMP 3
VIN 4
BO 5
10 GATE
9 VCC
8 VREG
7 FB
6 COMP
Pin Descriptions
PIN # I/O SYMBOL
DESCRIPTION
1 - GND Ground pin. All voltage levels refer to this pin.
2 I ISEN Current sense pin. The current through this pin is proportional to the inductor current.
3 I/O ICOMP Current error amplifier output pin.
4I
VIN Input voltage sense. This pin provides the reference voltage to shape inductor current. Connect this pin to a resistor divider from
the rectified input voltage. The resistor divider ratio is used to adjust the phase lag between input voltage and the input current.
The phase lag is required to compensate the phase lead generated by the EMI filter.
5 I/O BO This pin should be decoupled to GND with a minimum 0.1µF ceramic capacitor. The BO pin is a voltage follower, which will follow
the DC voltage of the VIN pin. The BO pin is internally tied to GND through a resistor RIS. The decoupling capacitor provides ripple
filtering. When the voltage at the BO pin (VBO) drops below brownout voltage threshold, the controller enters shutdown mode
and the gate drive is disabled. The BO pin will be disabled when the FB pin drops below the enabling threshold.
6 I/O COMP Output of the error amplifier. The voltage of the COMP pin sets the input power. During start-up, a small charge current will slowly
ramp up the voltage of the COMP pin.
7I
FB Voltage feed back pin. Connect this pin to a resistor divider from the output. The resistor divider sets the output voltage. When
http://www.DataSheet4U.net/
the FB pin voltage exceeds 104% of the reference voltage, overvoltage-protection is triggered and gate drive is disabled. When
the FB pin is below 10%, the device is put into shutdown mode. There is an internal pull-down current source for open loop
protection.
8 - VREG Output of internal regulator. The voltage having a ±2% tolerance over line, load and operating temperature. Bypass to GND with
a 47nF low ESR capacitor. VREG can source up to 10mA. This pin is not recommended for usage other than bypass.
9 I VCC Power supply pin. The VCC pin should be decoupled to GND with a minimum 0.1µF ceramic capacitor.
10 O GATE Push-pull gate drive for the external MOSFET. Output voltage is clamped at 12.5V. This pin provides typically 2A sink and 1.5A
source capability.
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP.
RANGE (°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL6730AFUZ
6730A
-40 to +125
10 Ld MSOP
M10.118
ISL6730BFUZ (Coming Soon) 6730B
-40 to +125
10 Ld MSOP
M10.118
ISL6730CFUZ (Coming Soon) 6730C
-40 to +125
10 Ld MSOP
M10.118
ISL6730DFUZ (Coming Soon) 6730D
-40 to +125
10 Ld MSOP
M10.118
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 ISL6730A. For more information on MSL please see techbrief TB363.
2 FN8258.0
February 26, 2013
datasheet pdf - http://www.DataSheet4U.net/

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Block Diagram
EMI CHOKE
VLINE
CF3
DF1
DF2
Lm
CF2
VI
CF1
D
L VOUT
Q1 COUT
RCS
VCC
CREG
VREG
RIN2
RIN1
RSEN
ISEN
ICOMP
Gmi
-0---.--2---5B-----O×-----2V-----I--N--- C O M P B
CURRENT
MIRROR
2:1
ICS > --I--O--2---C----
ICS
OTP
IREF
CEQ GEN.
VCS = -R----I--S------×---2--I--I--S-----E----N---
RIS = 16k
UVLO
LINEAR
REGULATOR
VCC
CONTROL
LOGIC
PWM
COMP
SKIP
OSCILLATOR
SOFT-START
ENABLE
2.5V
VIN
COMPB SKIP
COMP-1V OVER POWER
CLAMP
LIMIT
Gmv
20µA
IFB
SKIP
BO
CBO
COMP
GATE
GND
FB RFB2
RFB1

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Application Schematics
Typical 300W Application Schematic
P1
AC1
F1
85~265Vac
P4
AC2
P5
PE
C2
100n
D1
S3KB-TP
R1
L3 2M
R3
2M
S3KB-TP
L1 100u
S3KB-TP D3 D4
S3KB-TP
S3KB-TP
C3
D5 D6 470n
C4
470n
L2 0.6m
C5 C6
470p 470p
D7
S1M-13-F
D8
S1M-13-F
R5
0.068
R8
4.3M
R11
4.3M
3.16k
R9
TP5
R14
4.02k
C11
1.2n
TP6 C10
CR12
47n
U1
18n 3 ICOMP
2
ISEN
31
D2 C3D04060E
IPA60R600C6
Q1
1
R2
2.2
R4
51k
2
220n 3.3V
C8 1 DZ1
R6
3.3M
R10
3.3M
VCC
VCC
C9 P7
1u
P6
GATE
GND
10
1
390V
DC+
TP9
P2
270u
C1
P3
GNDTP10
C12
100p
TP3
R13
65k
C13
220p
4
VIN
7
FB
TP4
C14
470n
ISL6730B
R18 TP2
82.5k
C18
1.5u
C15
100n
R17 C16
1.5k
1n
R19
40k
TP1

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Application Schematics (Continued)
Typical 85W Application Schematic
D1
P1
AC1
F1
85~265Vac
P4
AC2
P5
PE
C2
100n
S3KB-TP
R1
L3 2M
7.5m
R3
2M
S3KB-TP
S3KB-TP
S3KB-TP
D3
S3KB-TP
D5
L1 128u
D4
C3
D6 220n
C4
330n
L2 2.2m
C5 C6
470p 470p
D7
S1M-13-F
D8
S1M-13-F
C7
470n
R5
0.22
R8
4.3M
R11
4.3M
2.1k
R9
TP5
R14 C11
6.2k 470p
C10
CR12
47n
U1
TP6 68n 3 ICOMP
2
ISEN
31
D2 C3D04060E
IPA60R600C6
Q1
1
R2
2.2
R4
51k
R6
3.3M
R10
3.3M
2
220n 3.3V
C8 1 DZ1
VCC
VCC
C9 P7
1u
P6
GATE
GND
10
1
C12
100p
TP3
R13
65k
C13
220p
4
VIN
TP4
C14
470n
7
FB
ISL6730A
R18 TP2
R15
DNP
C18
2.2u
68k C15
100n
R16
DNP
R17 C16
1.5k
1n
R19
40k
390V
DC+
TP9
P2
56u
C1
P3
GNDTP10
TP1
P8 PFC_EN
P9
R20
10k
1
Q2
C17 2N7002
1n