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LM2830XMF 数据表(PDF) 11 Page - Texas Instruments |
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LM2830XMF 数据表(HTML) 11 Page - Texas Instruments |
11 / 37 page LM2830, LM2830-Q1 www.ti.com SNVS454E – AUGUST 2006 – REVISED DECEMBER 2014 Feature Description (continued) 7.3.4 Current Limit The LM2830 device uses cycle-by-cycle current limiting to protect the output switch. During each switching cycle, a current limit comparator detects if the output switch current exceeds 1.75 A (typical), and turns off the switch until the next switching cycle begins. 7.3.5 Thermal Shutdown Thermal shutdown limits total power dissipation by turning off the output switch when the IC junction temperature exceeds 165°C. After thermal shutdown occurs, the output switch does not turn on until the junction temperature drops to approximately 150°C. 7.4 Device Functional Modes In normal operational mode, the device will regulate output voltage to the value set with resistive divider. In addition, this device has an enable (EN) pin that lets the user turn the device on and off by driving this pin high and low. Default setup is that this pin is connected to VIN through pull up resistor (typically 100 kΩ). When enable pin is low the device is in shutdown mode consuming typically only 30 nA, making it ideal for applications where low power consumption is desirable. Copyright © 2006–2014, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: LM2830 LM2830-Q1 |
类似零件编号 - LM2830XMF |
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类似说明 - LM2830XMF |
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