參數(shù)資料
型號: TPS24710
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: POWER SUPPLY SUPPORT CKT, PDSO10
封裝: GREEN, PLASTIC, MSOP-10
文件頁數(shù): 11/34頁
文件大?。?/td> 2148K
代理商: TPS24710
SLVSAL2C
– JANUARY 2011 – REVISED MAY 2011
AUTOMATIC RESTART
The TPS24711/13 automatically initiates a restart after a fault has caused it to turn off the external MOSFET M1.
Internal control circuits use CT to count 16 cycles before re-enabling M1 as shown in Figure 32 (TPS24711). This
sequence repeats if the fault persists. The timer has a 1 : 1 charge-to-discharge current ratio. For the very first
cycle, the TIMER pin starts from 0 V and rises to the upper threshold of 1.35 V and subsequently falls to 0.35 V
before restarting. For the following 16 cycles, 0.35 V is used as the lower threshold. This small duty cycle often
reduces the average short-circuit power dissipation to levels associated with normal operation and eliminates
special thermal considerations for surviving a prolonged output short.
Figure 32. Auto-Restart Cycle Timing
Copyright
2011, Texas Instruments Incorporated
19
Product Folder Link(s): TPS24710 TPS24711 TPS24712 TPS24713
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