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LM25122-Q1 Scheda tecnica(PDF) 8 Page - Texas Instruments |
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LM25122-Q1 Scheda tecnica(HTML) 8 Page - Texas Instruments |
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8 / 47 page  LM25122-Q1 SNVSAF0A – DECEMBER 2015 – REVISED DECEMBER 2015 www.ti.com Electrical Characteristics (continued) Unless otherwise specified, these specifications apply for –40°C ≤ TJ ≤ +125°C, VVIN = 12 V, VVCC = 8.3 V, RT = 20 kΩ, no load on LO and HO. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOHH HO high-state voltage drop IHO = –100 mA, VOHH = VBST –VHO 0.15 0.24 V VOLH HO low-state voltage drop IHO = 100 mA, VOLH = VHO –VSW 0.1 0.18 V HO rise time (10% to 90%) CLOAD = 4700 pF, VBST = 12 V 25 ns HO fall time (90% to 10%) CLOAD = 4700 pF, VBST = 12 V 20 ns VHO = 0 V, VSW = 0 V, VBST = 4.5 V 0.8 A IOHH Peak HO source current VHO = 0 V, VSW = 0 V, VBST = 7.6 V 1.9 A VHO = VBST = 4.5 V 1.9 A IOLH Peak HO sink current VHO = VBST= 7.6 V 3.2 A IBST BST charge pump sourcing VVIN = VSW = 9.0 V , VBST - VSW = 5.0 V 100 200 µA current BST to SW, IBST= –70 μA, 5.3 6.2 6.75 V VVIN = VSW = 9.0 V BST charge pump regulation BST to SW, IBST = –70 μA, 7 8.5 9 V VVIN = VSW = 12 V BST to SW undervoltage 2.0 3.0 3.5 V BST DC bias current VBST - VSW = 12 V, VSW = 0 V 30 45 µA LO GATE DRIVER VOHL LO high-state voltage drop ILO = –100 mA, VOHL = VVCC –VLO 0.15 0.25 V VOLL LO low-state voltage drop ILO = 100 mA, VOLL = VLO 0.1 0.17 V LO rise time (10% to 90%) CLOAD = 4700 pF 25 ns LO fall time (90% to 10%) CLOAD = 4700 pF 20 ns VLO = 0 V, VVCC = 4.5 V 0.8 A IOHL Peak LO source current VLO = 0 V 2.0 A VLO = VVCC = 4.5 V 1.8 A IOLL Peak LO sink current VLO = VVCC 3.2 A SWITCHING CHARACTERISTICS tDLH LO fall to HO rise delay No load, 50% to 50% 50 80 115 ns tDHL HO fall to LO rise delay No load, 50% to 50% 60 80 105 ns THERMAL TSD Thermal shutdown Temperature rising 165 ºC Thermal shutdown hysteresis 25 ºC 8 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Product Folder Links: LM25122-Q1 |
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