- 您现在的位置：买卖IC网 > PDF目录299960 > TDA4605 (STMICROELECTRONICS) SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP8 PDF资料下载
参数资料
| 型号： | TDA4605 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封装： | PLASTIC, DIP-8 |
| 文件页数： | 2/7页 |
| 文件大小： | 116K |
| 代理商： | TDA4605 |
TDA4605
2/7
PIN CONFIGURATION
Figure 2. Block Diagram
Pin
Number
Description
1
Regulating voltage : information input concerning secondary voltage.
By comparing the regulating voltage obtained from the regulating winding of the transformer with the
internal reference voltage, the output pulse width on Pin 5 is adapted to the load of the secondary side
(normal, overload, short circuit, no load)
2
Primary current simulation : information input regarding the primary current. The primary current rise in the
primary winding is simulated at Pin 2 as a voltage rise by means of external RC element. When a value is
reached that is derived from the regulating voltage at Pin 1, the output pulse at Pin 5 is terminated. The RC
element serves to set the maximum power at the overload point.
3
Primary voltage detector : input for primary voltage monitoring. When the line voltage is too low the IC is
switched-off by comparing V3 with an internal reference. Voltage at Pin 3 is used for overload point
compensation.
4
Ground
5
Output : push-pull output for charge and discharge of the gate capacitance of the power MOS transistor.
6
Supply voltage : Supply voltage input. From it are derived a stable internal reference voltage (VREF) and the
switching threshold V6A, V6E, V6 max and V6 min for the supply voltage detector.
if V6 > V6E the VREF is switched on and switched off when V6 < V6A. In addition the logic is only enable for
V6 min < V6 < V6 max.
7
Soft-start : input for soft-start and integration network. Start-up will begin with short pulses by connecting a
capacitor between Pin 7 to ground. This capacitor together with a resistor connected between Pin 7 and
error amplifier output also as acts an integrator network for regulation.
8
Zero detector : Input for the oscillator feedback. After starting oscillator, every zero transit of the feedback
voltage (falling edge) triggers an output pulse at Pin 5. The trigger threshold is at typically - 50mV
1
2
3
4
5
6
7
8
V6min
V6max
V6E
V6A
V2B
Vst
VR
Vu
VREF
Reference
Voltage
(typ. 3V)
Supply
Voltage
Monitor
Primary
Current
Recopy
Output Stage
and
Current Limit
Logic
Starting
Impulse
Generator
Regulating
& Overload
Amplifier
Current
Source
Overload
Point
Correction
Low Voltage
Protection
Monitoring
Stop
Comp.
Zero
Crossing
Detector
TDA4605
460
5-
02
.eps
1
相关PDF资料 |
PDF描述 |
|---|---|
| TDA4863-2G | POWER FACTOR CONTROLLER, PDSO8 |
| TDA8042MDK-T | 175 MHz - 325 MHz RF/MICROWAVE QUADRAPHASE DEMODULATOR |
| TDC550MM-5 | INTERCONNECTION DEVICE |
| TDP08H0SBD1R | PIANO DIP SWITCH-8SWITCHES, SPST, MOMENTARY,0.025A, 24VDC, SURFACE MOUNT-STRAIGHT |
| TDP08H0SBD1 | PIANO DIP SWITCH-8SWITCHES, SPST, MOMENTARY,0.025A, 24VDC, SURFACE MOUNT-STRAIGHT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA4605_03 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:CONTROL CIRCUIT FOR SWITCH MODE POWER SUPPLIES USING MOS TRANSISTORS |
| TDA46052 | 功能描述:开关变换器、稳压器与控制器 RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TDA4605-2 | 功能描述:软开关 PWM 控制器 CTRL IC FOR SWITCH MODE PWR SUPPLIES RoHS:否 制造商:Fairchild Semiconductor 输出端数量: 输出电流: 开关频率: 工作电源电压:30 V 电源电流: 最大工作温度:+ 105 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| TDA46052HKLA1 | 制造商:Infineon Technologies AG 功能描述:Controller Switch Mode Power Supply 8-Pin PDIP 制造商:Infineon Technologies AG 功能描述:IC POWER SUPPLY CONTROLLER 8DIP |
| TDA46053 | 功能描述:开关变换器、稳压器与控制器 RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。