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參數(shù)資料
| 型號： | TDA4605 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 15/21頁 |
| 文件大?。?/td> | 631K |
| 代理商： | TDA4605 |
Semiconductor Group
35
TDA 4605
Pin Definitions and Functions
Pin No.
Function
1
Regulating Voltage: Information input concerning secondary voltage.
By comparing the regulating voltage - obtained from the regulating winding ot the
transformer - with the internal reference voltage, the output impulse width on pin 5
is adapted to the load ot 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 ot external RC-element. When a value is reached that is derived
from the regulating voltage at pin 1, the output impulse at pin 5 is terminated. The
RC-element serves to set the maximum power at the overload point set.
3
Input for Primary Voltage Monitoring: In the normal operation
V3 is moving
between the thresholds
V3H and V3L (V3H > V3 > V3L).
V3 < V3L: SMPS is switched OFF (line voltage too low).
V3 > V3H : Compensation of the overload point regulation (controlled by pin 2)
starts at
V3H : V3L = 1.7.
4
Ground
5
Output: Push-pull-output provides
± 1 A for rapid charge and discharge of the
gate capacitance ot the power MOS-transistor.
6
Supply Voltage Input: A stable internal reference voltage
VREF is derived from
the supply voltage also the switching thresholds
V6A , V6E , V6 max and V6 min for
the supply voltage detector. If
V6 > V6E then VREF is switched on and swiched off
when
V6 < V6A . In addition the logic is only enable for V6 min < V6 < V6 max.
7
Soft-Start: Input for soft-start. Start-up will begin with short pulses by connecting
a capacitor from pin 7 to ground.
8
Zero Detector: Input tor the oscillation feedback. After starting oscillation, every
zero transit of the feedback voltage (falling edge) triggers an output impulse at
pin 5. The trigger threshold is at + 50 mV typical.
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| TDA4605_03 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CONTROL CIRCUIT FOR SWITCH MODE POWER SUPPLIES USING MOS TRANSISTORS |
| TDA46052 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| TDA4605-2 | 功能描述:軟開關(guān) PWM 控制器 CTRL IC FOR SWITCH MODE PWR SUPPLIES RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝: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:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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