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TPS40322 Datasheet(PDF) 22 Page - Texas Instruments |
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TPS40322 Datasheet(HTML) 22 Page - Texas Instruments |
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22 / 47 page  = m ´ ON1 VIN _ HYS 15 A R ( ) æ ö + = ´ ç ÷ ç ÷ è ø ON1 ON2 ON2 R R VIN _ UVLO 1.24 V R UDG-11118 UVLO RON2 RON1 VIN + TPS40322 VIN_OK 15 mA TPS40322 SLUSAF8E – JULY 2011 – REVISED JANUARY 2016 www.ti.com Figure 22. Input UVLO Diagram (6) (7) 7.3.11 Power Good The TPS40322 provides an indication that output is good for each channel. This is an open-drain signal that pulls low when any condition exists that would indicate that the output of the supply might be out of regulation. These conditions include: • Feedback voltage (VFB) is more than ±12.5% from nominal • Soft-start is active 7.3.12 Thermal Shutdown If the junction temperature of the device reaches the thermal shutdown limit of 150°C, the PWMs and the oscillators are turned off and HDRVs and LDRVs are driven low. When the junction cools to the required level (130°C typical), the PWM initiates soft start as during a normal power-up cycle. 22 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated Product Folder Links: TPS40322 |
Similar Part No. - TPS40322_16 |
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Similar Description - TPS40322_16 |
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