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BD2045AFJ Scheda tecnica(PDF) 2 Page - Rohm |
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BD2045AFJ Scheda tecnica(HTML) 2 Page - Rohm |
2 / 13 page BD2045AFJ, BD2055AFJ Technical Note 2/12 www.rohm.com 2009.05 - Rev.A © 2009 ROHM Co., Ltd. All rights reserved. Electrical characteristics ◎ BD2045AFJ (Unless otherwise specified, VIN = 5.0V, Ta = 25°C) Parameter Symbol Limits Unit Condition Min. Typ. Max. Operating Current IDD - 90 120 μA V/EN = 0V, OUT = OPEN Standby Current ISTB - 0.01 1 μA V/EN = 5V, OUT = OPEN /EN input voltage V/EN 2.0 - - V High input V/EN - - 0.8 V Low input - - 0.4 V Low input 2.7V≤ VIN ≤4.5V /EN input current I/EN -1.0 0.01 1.0 μA V/EN = 0V or V/EN = 5V /OC output LOW voltage V/OC - - 0.5 V I/OC = 5mA /OC output leak current IL/OC - 0.01 1 μA V/OC = 5V ON resistance RON - 80 100 mΩ IOUT = 250mA Output current at short ISC 0.3 0.5 0.7 A VIN = 5V, VOUT = 0V, CL = 100μF (RMS) Output rise time TON1 - 1.2 10 ms RL = 20Ω , CL = OPEN Output turn on time TON2 - 1.5 20 ms Output fall time TOFF1 - 1 20 μs Output turn off time TOFF2 - 3 40 μs UVLO threshold VTUVH 2.1 2.3 2.5 V Increasing VIN VTUVL 2.0 2.2 2.4 V Decreasing VIN ◎ BD2055AFJ (Unless otherwise specified, VIN = 5.0V, Ta = 25°C) Parameter Symbol Limits Unit Condition Min. Typ. Max. Operating Current IDD - 90 120 μA VEN = 5V, OUT = OPEN Standby Current ISTB - 0.01 1 μA VEN = 0V, OUT = OPEN EN input voltage VEN 2.0 - - V High input VEN - - 0.8 V Low input - - 0.4 V Low input 2.7V≤ VIN ≤4.5V EN input current IEN -1.0 0.01 1.0 μA VEN = 0V or VEN = 5V /OC output LOW voltage V/OC - - 0.5 V I/OC = 5mA /OC output leak current IL/OC - 0.01 1 μA V/OC = 5V ON resistance RON - 80 100 mΩ IOUT = 250mA Output current at short ISC 0.3 0.5 0.7 A VIN = 5V, VOUT = 0V, CL = 100μF (RMS) Output rise time TON1 - 1.2 10 ms RL = 20Ω , CL = OPEN Output turn on time TON2 - 1.5 20 ms Output fall time TOFF1 - 1 20 μs Output turn off time TOFF2 - 3 40 μs UVLO Threshold VTUVH 2.1 2.3 2.5 V Increasing VIN VTUVL 2.0 2.2 2.4 V Decreasing VIN |
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