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IK3401 の電気的特性と機能

IK3401のメーカーはIK Semiconです、この部品の機能は「Green Mode PWM Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 IK3401
部品説明 Green Mode PWM Controller
メーカ IK Semicon
ロゴ IK Semicon ロゴ 




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IK3401 Datasheet, IK3401 PDF,ピン配置, 機能
TECHNICAL DATA
Green Mode PWM Controller
Description
IK3401
The IK3401 is a green mode PWM controller. It is specially
designed for DVDP, STB and LCD monitor application.
To minimize standby power consumption, a green-mode
function provides off-time modulation to continuously
decrease the switching frequency at light-load conditions.
Under zero-load conditions, the power supply enters burst-
mode. To avoid acoustic noise problem, the minimum PWM frequency set above
20KHz. This green-mode function enables the power supply to easily meet international
power conservation requirements. To further reduce power consumption, IK3401 is
www.DataSmheaent4uUf.acocmtured by using the HV-CMOS process. This allows the lowest start-up current
around 14uA, and the operating current is only 4mA. As a result, large start-up resistance
can be used.
The maximum power can be limited constantly, regardless of the line voltage change
using power limit function. The switching frequency is programmable or internally fixed to
be 65kHz.
IK3401 integrates frequency modulation technique internally. The frequency jittering
function helps reduce EMI emission of a power supply with minimum line filters. Also, its
built-in synchronized slope compensation achieves stable peak-current-mode control.
IK3401 provides many protection functions. In addition to cycle-by-cycle current limiting,
the internal open-loop protection circuit ensures safety should an open loop or output
short-circuit failure occurs. PWM output is disabled till VDD drops below the UVLO lower
limit. Then, the controller starts up again. As long as VDD exceeds about 24V, the internal
OVP circuit is triggered. For OVP and OTP, the protection mode can be chosen to be
latch off or auto recovery.
IK3401 is available in an 8-pin DIP or SOP package.
Features
· Green-mode PWM Control
· Low Start-Up Current (Typ. 14uA)
· Low Operating Current (Typ. 4mA)
· Programmable PWM frequency
with Frequency Jittering
· Peak-current-mode Control
· Cycle-by-Cycle Current Limiting
· Synchronized Slope Compensation
Applications
· Notebook Power Adapters
· DVD-P, STB, LCD Monitor Power
· Open-Frame SMPS
· Leading-Edge Blanking
· Constant Output Power Limit
· Totem Pole Output with Soft Driving
· VDD Over Voltage Protection (OVP)
· 150°C OTP with Hysteresis
· Internal Latch Circuit (OVP, OTP)
· Internal Open-loop Protection
· VDD Under-voltage Lockout (UVLO)
· GATE Output Maximum Voltage
Clamp (18V)
Rev 00

1 Page





IK3401 pdf, ピン配列
Block diagram
IK3401
www.DataSheet4U.com
Absolute Maximum Ratings
(Ta = 25°C, unless otherwise specified)
Symbol
VDD
VIN
VFB
VSENSE
VRI
PD
RΘ J-A
TJ
TSTG
TL
HBM
MM
Parameter
Supply Voltage
Input Terminal
Input Voltage to FB Pin
Input Voltage to SENSE Pin
Input Voltage to RI Pin
Power Dissipation
at TA < 50°C DIP
SOP
Thermal Resistance
Junction-Air DIP
SOP
Operating Junction Temperature
Storage Temperature Range
Lead Temperature
ESD Capability, HBM Model
ESD Capability, MM Model
Value
25
25
-0.3 to 7V
-0.3 to 7V
-0.3 to 7V
800
400
82.5
141
-40 to 125
-50 to 150
260
3.0
250
Unit
V
V
V
V
V
mW
°C
°C
°C
°C
kV
V
Rev 00


3Pages


IK3401 電子部品, 半導体
IK3401
Gate Section
Symbol
DCYMAX
VGL
VGH
tr
tf
IO
www.DataSheet4U.com
VCLAMP
Parameter
Maximum Duty
Cycle
Output Voltage
Low
Output Voltage
High
Rising Time
Falling Time
Peak Output
Current
Gate Output
Clamping Voltage
Test Condition
VDD=15V,
IO=50mA
VDD=12V,
IO=50mA
VDD=15V,
CL=1nF
VDD=15V,
CL=1nF
VDD=15V,
GATE=6V
VDD=23V
Min.
80
8
150
30
230
Typ.
85
250
50
18
Max.
90
1.5
350
90
19
Unit
%
V
V
ns
ns
mA
V
Over Temperature Protection (OTP)
Symbol
Temp-Off
Temp-
Restart
Parameter
Protection Junction
Temperature*1
Restart Junction
Temperature*2
Test Condition
Min.
Typ.
150
130
Max.
*1) When activated, the output is disabled and the latch is turned off.
*2) This is the threshold temperature for enabling the output again and resetting the latch,
after over temperature protection has been activated.
Unit
°C
°C
Typical Characteristics
Rev 00

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
IK3401

Green Mode PWM Controller

IK Semicon
IK Semicon


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