參數(shù)資料
型號： MC33364
廠商： ON SEMICONDUCTOR
英文描述： Critical Conduction SMPS Controller(臨界傳導的SMPS控制器)
中文描述： 臨界導電開關電源控制器（臨界傳導的開關電源控制器）
文件頁數(shù)： 4/16頁
文件大小： 229K
代理商： MC33364
MC33364
http://onsemi.com
4
PIN DESCRIPTION
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8 (NA)
AN1594: Critical Conduction Mode, Flyback Switching Power Supply Using the MC33364.
AN1681: How to keep a Flyback SwitchMode Power Supply Stable with a CriticalMode Controller.
during the demagnetization phase of the transformer, comparing it to an internal reference. The
ZCD sets the latch for the output driver.
3 (2)
Current Sense
The Current Sense Pin monitors the current in the power switch by measuring the voltage across
a resistor divider connected to the Voltage Feedback Pin. A 110 mV voltage offset is applied to
providing bias for the external optocoupler.
6 (4)
V
ref
Frequency Clamp
The V
ref
Pin is a buffered internal 5.0 V reference with Undervoltage Lockout.
The Frequency Clamp Pin ensures a minimum offtime value, typically 6.9 s. It prevents the
1/(T
ON
+ T
OFFmin
).
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9 (5)
10 (5)
P GND
A GND
11 (6)
Gate Drive
The gate drive is the output to drive the gate of the power MOSFET.
This pin is the ground for the internal circuitry excluding the gate drive stage.
12 (7)
V
CC
Provides the voltage for all internal circuitry including the gate drive stage and V
ref
. This pin has
This pin is the ground for the gate drive stage.
The Line Pin provides the initial power to the V
pins. Internally the line pin is a high voltage
current source, eliminating the need for an external startup network.
MAXIMUM RATINGS
(T
A
= 25
°
C, unless otherwise noted.)
Rating
Symbol
Value
Unit
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Current Sense, Compensation,
Power Supply Voltage (Operating)
V
in1
V
CC
1.0 to +10
16
V
V
Line Voltage
V
Line
700
V
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Maximum Power Dissipation @ T
A
= 70
°
C
Thermal Resistance, JunctiontoAir
D Suffix, Plastic Package Case 751B05
Maximum Power Dissipation @ T
A
= 70
°
C
P
D
R
JA
in
450
178
mW
°
C/W
in
P
D
R
JA
J
550
mW
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Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE:
ESD data available upon request.
A
stg
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相關代理商/技術參數(shù)
參數(shù)描述
MC33364D 功能描述:電流型 PWM 控制器 Variable Frequency RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MC33364D1 功能描述:電流型 PWM 控制器 Variable Frequency RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MC33364D1G 功能描述:電流型 PWM 控制器 Variable Frequency SMPS RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MC33364D1R2 功能描述:電流型 PWM 控制器 Variable Frequency RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MC33364D1R2G 功能描述:電流型 PWM 控制器 Variable Frequency SMPS RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
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