参数资料
| 型号： | MC33363BDWR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/11页 |
| 文件大小： | 0K |
| 描述： | IC OFFLINE SWIT PWM HV 16SOIC |
| 标准包装： | 1 |
| 输出隔离： | 隔离 |
| 频率范围： | 59kHz ~ 315kHz |
| 输入电压： | 11.5 V ~ 40 V |
| 输出电压： | 700V |
| 工作温度： | -25°C ~ 125°C |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽）13 引线 |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 剪切带 (CT) |
| 其它名称： | MC33363BDWR2GOSCT |
MC33363B
PIN FUNCTION DESCRIPTION
Pin
1
2
3
4, 5, 12, 13
6
7
8
9
10
11
14, 15
16
Function
Startup Input
--
V CC
Ground
R T
C T
Regulator Output
Compensation
Voltage
Feedback Input
Overvoltage
Protection Input
--
Power Switch
Description
This pin connects directly to the rectified ac line voltage source. Internally Pin 1 is tied to the drain of
a high voltage startup MOSFET. During startup, the MOSFET supplies internal bias, and charges an
external capacitor that connects from the V CC pin to ground.
This pin has been omitted for increased spacing between the rectified ac line voltage on Pin 1 and
the V CC potential on Pin 3.
This is the positive supply voltage input. During startup, power is supplied to this input from Pin 1.
When V CC reaches the UVLO upper threshold, the startup MOSFET turns off and power is supplied
from an auxiliary transformer winding.
These pins are the control circuit grounds. They are part of the IC lead frame and provide a thermal
path from the die to the printed circuit board.
Resistor R T connects from this pin to ground. The value selected will program the Current Limit
Comparator threshold and affect the Oscillator frequency.
Capacitor C T connects from this pin to ground. The value selected, in conjunction with resistor R T ,
programs the Oscillator frequency.
This 6.5 V output is available for biasing external circuitry. It requires an external bypass capacitor of
at least 1.0 m F for stability.
This pin is the Error Amplifier output and is made available for loop compensation. It can be used as
an input to directly control the PWM Comparator.
This is the inverting input of the Error Amplifier. It has a 2.6 V threshold and normally connects
through a resistor divider to the converter output, or to a voltage that represents the converter output.
This input provides runaway output voltage protection due to an external component or connection
failure in the control loop feedback signal path. It has a 2.6 V threshold and normally connects
through a resistor divider to the converter output, or to a voltage that represents the converter output.
These pins have been omitted for increased spacing between the high voltages present on the
Power Switch Drain, and the ground potential on Pins 12 and 13.
This pin is designed to directly drive the converter transformer and is capable of switching a
Capacitor C T
Compensation
Oscillator Output
PWM
Comparator
Output
PWM Latch
Q Output
Power Switch
Gate Drive
Leading Edge
Blanking Input
(Power Switch
Drain Current)
Drain
maximum of 700 V and 1.0 A.
2.6 V
0.6 V
Current Limit
Propagation
Delay
Current
Limit
Threshold
Normal PWM Operating Range
Figure 18. Timing Diagram of Normal Operation
http://onsemi.com
7
Output Overload
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相关代理商/技术参数 |
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| MC33363P | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC33364D | 功能描述:电流型 PWM 控制器 Variable Frequency RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MC33364D1 | 功能描述:电流型 PWM 控制器 Variable Frequency RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MC33364D1G | 功能描述:电流型 PWM 控制器 Variable Frequency SMPS RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MC33364D1R2 | 功能描述:电流型 PWM 控制器 Variable Frequency RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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