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IRISA6131のメーカーはInternational Rectifierです、この部品の機能は「INTEGRATED SWITCHER」です。 |
部品番号 | IRISA6131 |
| |
部品説明 | INTEGRATED SWITCHER | ||
メーカ | International Rectifier | ||
ロゴ | |||
このページの下部にプレビューとIRISA6131ダウンロード(pdfファイル)リンクがあります。 Total 7 pages
IRIS-A6131
Features
INTEGRATED SWITCHER
•Small sized 8-pin DIP type full molded package, optimum IC for low-
height SMPS
•Off-timer circuit is provided on the monolithic control IC
• Low start-up circuit current (10uA max)
•Low circuit current at operation (1.5mA typ)
Package Outline
• Avalanche energy guaranteed MOSFET with high VDSS
The built-in power MOSFET simplifies the surge absorption
circuit since the MOSFET guarantees the avalanche energy.
No VDSS de-rating is required.
•Built-in Start-up circuit (the power loss in the start-up circuit is
reduced by cutting off the start-up circuit after the IC starts its
operation.)
•Auto Burst Stand-by (realizing input power<0.1W at no load)
•Auto Bias Function (stable burst operation without the interference on
transformer)
•Two operational modes by auto switching functions
For normal operation: PRC mode
For stand-by operation (at light load): Burst mode
•Built-in Leading Edge Blanking Function
• Built-in constant voltage drive circuit
8 Lead PDIP
Various kinds of protection functions
Pulse-by-pulse Overcurrent Protection (OCP)
Key Specifications
Overvoltage Protection with latch mode (OVP)
Thermal Shutdown with latch mode (TSD)
MOSFET RDS(ON)
Pout(W)
Type VDSS(V) MAX ACinput(V) Note 1
Descriptions
IRIS-A6131 500
3.95Ω 100/120±15%
10
IRIS-A6131 is a hybrid IC consisting of a power MOSFET and a controller IC, designed for PRC
fly-back converter type SMPS (Switching Mode Power Supply) applications, applicable for PRC
operation for small power SMPS. This IC realizes downsizing and standardizing of a power supply
system reducing external component count and simplifying the circuit design.
Note: PRC is abbreviation for “Pulse Ratio Control” (On-width control with fixed OFF-time).
Typical Connection Diagram
8 76
5
D D NC Startup
IRIS-A6131
OCP Vcc GND FB
12
34
Note 1: The pout (W) represents the thermal rating at PRC Operation. The peak power output is obtained by
approximating 120 to 140% of the above listed value. When the output voltage is low and ON-duty is narrow, the
Pout (W) shall become lower than that of above value.
www.irf.com 1
1 Page IRIS-A6131
Electrical Characteristics (for Control IC)
Electrical characteristics for control part (Ta=25℃, Vin=20V,unless otherwise specified)
Symbol
Defi ni ti on
VCC(ON) Operation start voltage
VCC(OFF) Operation stop voltage
ICC(ON) Circuit current in operation
ICC(OFF) Circuit current in non-operation
VCC(bias) Auto bias threshold voltage
- Vcc(bias) - Vcc(OFF)
TOFF(MAX) Maximum OFF time
VOCP O.C.P. threshold voltage
Tbw Leading edge blanking time
Vburst Burst threshold voltage
VOLP O.L.P. threshold voltage
IOLP Out-flow current at O.L.P operation
IFB(MAX) Maximum F.B. current
ISTARTUP Startup current
ISTART(leak) Startup circuit leakage current
VCC(OVP) O.V.P operation voltage
ICC(H) Latch circuit sustaining current *6
VCC(La.OFF) Latch circuit release voltage *6
Tj(TSD) Thermal shutdown operating temperature
MIN
16
9
-
-
9.6
0.2
7.3
0.69
200
0.7
6.5
18
227
340
-
28.7
-
6.6
135
Rati ngs
TYP
17.5
10
-
-
10.6
-
8
0.77
320
0.79
7.2
26
300
790
-
31.2
-
7.3
-
MAX
19.2
11
4
50
11.6
-
8.7
0.86
480
0.88
7.9
35
388
1230
30
34.1
200
8
-
*6 The latch circuit means a circuit operated O.V.P and T.S.D.
Uni ts
V
V
mA
µA
V
V
µsec
V
nsec
V
V
µA
µA
µA
µA
V
µA
V
℃
Test
Condi ti ons
VCC=0→19.2V
VCC=19.2→9.V
-
VCC=14V
VCC=20→9.6V
-
-
-
-
-
-
-
-
VCC=15V
-
VCC=0→34.1V
VCC=34.1→8.5V
VCC=34.1→6.6V
-
Electrical Characteristics (for MOSFET)
(Ta=25℃) unless otherwise specified
Symbol
Defi ni ti on
MIN
Rati ngs
TYP
MAX
VDSS Drain-to-Source breakdown voltage
500
-
-
IDSS Drain leakage current
RDS(ON) On-resistance
tf Switching time
- - 300
- - 3.95
- - 250
θch-F Thermal resistance
*7
--
*7 Internal frame temperature (TF) is measured at the root of the Pin 3.
52
Uni ts
V
µA
Ω
nsec
℃/W
Test Conditions
ID=300µA
V1- 3=0V(short)
VDS =500V
V1- 3=0V(short)
ID=0.4A
-
Between channel and
internal frame
www.irf.com 3
3Pages IRIS-A6131
Block Diagram
Startup
5
UVLO
+ Internal
- Bias
OFF Timer
Latch Delay
Vcc
2
OVP
+
-
TSD
Power
MOS FET
Drive
8D
7D
PWM Latch
+
-
SQ
R
Bias
OLP
+
-
Burst
FB
Lead Assignments
Blanking
Discharge
OCP
Buffer
4
FB/OLP
1 Source/OCP
3 GND
Pin Assignment
(Top View)
S/OCP 1
8
Drain
VCC 2
7 Drain
GND 3
FB/OLP 4
6 N.C.
5 Startup
Pin No.
1
2
3
Symbol
S/OCP
VCC
GND
4 FB/OLP
5 Startup
6 N.C.
7 Drain
8 Drain
Descri pti on
Source Pin
Power supply Pin
Ground Pin
Feedback/OLP pin
Startup pin
-
Drain Pin
Drain Pin
F uncti on
MOSFET source
Input of power supply for control circuit
Ground
Input of constant voltage control signal/over
load protection signal
Input of Startup current
Not Connected
MOSFET drain
MOSFET drain
Other Functions
O.V.P. – Overvoltage Protection Circuit
T.S.D. – Thermal Shutdown Circuit
www.irf.com 6
6 Page | |||
ページ | 合計 : 7 ページ | ||
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データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
IRISA6131 | INTEGRATED SWITCHER | International Rectifier |