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參數(shù)資料
| 型號(hào)： | TDA16846G |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.1 A POWER FACTOR CONTROLLER, 98 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | PLASTIC, DSO-14 |
| 文件頁(yè)數(shù)： | 22/28頁(yè) |
| 文件大?。?/td> | 586K |
| 代理商： | TDA16846G |
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Data Sheet
3
2003-07-31
Controller for Switch Mode Power Supplies
Supporting Low Power Standby and Power
Factor Correction
TDA 16846
TDA 16846-2
Bipolar IC
P-DSO-14-3
P-DIP-14-3
1Overview
1.1
Features
Line Current Consumption with PFC
Low Power Consumption
Stable and Adjustable Standby Frequency
Very Low Start-up Current
Soft-Start for Quiet Start-up
Free usable Fault Comparators
Synchronization and Fixed Frequency Circuits
Over- and Undervoltage Lockout
Switch Off at Mains Undervoltage
Temporary High Power Circuit (only TDA 16847-2)
Mains Voltage Dependent Fold Back Point Correction
Continuous Frequency Reduction with Decreasing Load
Adjustable and Voltage Dependent Ringing Suppression Time
1.2
Description
The TDA 16846-2 (this name is used in the description for all types) is optimized to
control free running or fixed frequency flyback converters with or without Power Factor
Correction (Current Pump). To provide low power consumption at light loads, this device
reduces the switching frequency in small steps with load, towards an adjustable
minimum (e. g. 20 kHz in standby mode). Additionally, the startup current is very low. To
avoid switching stress on the power devices, the power transistor is always switched on
at minimum voltage. A special circuit is implemented to avoid jitter. The device has
Type
Ordering Code
Package
TDA 16846
Q67000-A9377
P-DIP-14-3
TDA 16847
Q67000-A9378
P-DIP-14-3
TDA 16846G
Q67006-A9430
P-DSO-14-3
TDA 16847G
Q67006-A9412
P-DSO-14-3
TDA 16846-2
Q67040-S4494
P-DIP-14-3
TDA 16847-2
Q67040-S4496
P-DIP-14-3
TDA 16846-2G
Q67040-S4495
P-DSO-14-3
TDA 16847-2G
Q67040-S4497
P-DSO-14-3
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