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LM5170-Q1 Datasheet(PDF) 3 Page - Texas Instruments |
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LM5170-Q1 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 67 page  1 2 3 4 5 6 7 8 9 10 11 12 36 35 34 33 32 31 30 29 28 27 26 25 NC IPK COMP2 UVLO RAMP1 NC OVPB COMP1 BRKG BRKS RAMP2 VINX NC VIN NC CSA2 CSB2 nFAULT OPT SS VCCA CSA1 CSB1 OVPA 3 LM5170-Q1 www.ti.com SNVSAQ6 – NOVEMBER 2016 Product Folder Links: LM5170-Q1 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated (1) Note: G = Ground, I = Input, O = Output, P = Power 5 Pin Configuration and Functions PHP Package 48-Pin TQFP Top View Pin Functions PIN I/O(1) DESCRIPTION NO. NAME 1 CSA2 I CH-2 differential current sense inputs. The CSA2 pin connects to the CH-2 power inductor. The CSB2 pin connects to the circuit breaker or directly to the LV-Port if the circuit breaker is not used. The CH-2 current sense resistor is placed between these two pins. 2 CSB2 I 3 NC — No Connect 4 VINX O Internally connected to VIN pin through a cutoff switch. When the controller is shutdown, VINX is disconnected from VIN, opening the current leakage path. When the controller is enabled, VINX is connected to VIN and serves as the pullup supply for the RC ramp generators at the RAMP1 and RAMP2 pins. VINX also pulls up the OVPA pin through an internal 3-MΩ resistor. 5 NC — No Connect 6 VIN I The input pin connecting to the HV-Port line voltage. It supplies the BRKG pin through an internal 330-µA current source. 7 NC — No Connect |
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