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TDA16846 数据表(PDF) 3 Page - Infineon Technologies AG |
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TDA16846 数据表(HTML) 3 Page - Infineon Technologies AG |
3 / 29 page Version 2.0 3 31 Jul 2003 Controller for Switch Mode Power Supplies Supporting Low Power Standby and Power Factor Correction TDA 16846/16846-2 TDA 16847/16847-2 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 |
类似零件编号 - TDA16846 |
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类似说明 - TDA16846 |
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