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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MP1580 датащи(PDF) 2 Page - Monolithic Power Systems |
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MP1580 датащи(HTML) 2 Page - Monolithic Power Systems |
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2 / 10 page  MP1580 – 2A, 380KHz STEP-DOWN CONVERTER MP1580 Rev. 3.0 www.MonolithicPower.com 2 12/5/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2005 MPS. All Rights Reserved. TM PACKAGE REFERENCE BS IN SW GND SYNC EN COMP FB 1 2 3 4 8 7 6 5 TOP VIEW MP1580_PD01-SOIC8 Part Number* Package Temperature MP1580HS SOIC8 –40 °C to +125°C * For Tape & Reel, add suffix –Z (eg. MP1580HS–Z) For Lead Free, add suffix –LF (eg. MP1580HS –LF–Z) 8 7 6 5 SYNC EN COMP FB BS IN SW GND 1 2 3 4 TOP VIEW MP1580_PD02-PDIP8 Part Number** Package Temperature MP1580HP PDIP8 –40 °C to +125°C ** For Tape & Reel, add suffix –Z (eg. MP1580HP–Z) For Lead Free, add suffix –LF (eg. MP1580HP –LF–Z) ABSOLUTE MAXIMUM RATINGS (1) Supply Voltage (VIN)..................................... 27V Switch Voltage (VSW).................. –1V to VIN + 1V Bootstrap Voltage (VBS) ....................... VSW + 6V Feedback Voltage (VFB) .................–0.3V to +6V Enable/UVLO Voltage (VEN)...........–0.3V to +6V Comp Voltage (VCOMP) ...................–0.3V to +6V Sync Voltage (VSYNC)......................–0.3V to +6V Junction Temperature............................ +150 °C Lead Temperature ................................. +260 °C Storage Temperature.............. –65°C to +150 °C Recommended Operating Conditions (2) Input Voltage (VIN) ......................... 4.75V to 25V Operating Temperature...............–40 °C to +125°C Thermal Resistance (3) θJA θJC SOIC8.................................... 105 ..... 50... °C/W PDIP8 ..................................... 95 ...... 55... °C/W Notes: 1) Exceeding these ratings may damage the device. 2) The device is not guaranteed to function outside of its operating conditions. 3) Measured on approximately 1” square of 1 oz copper. ELECTRICAL CHARACTERISTICS VIN = 12V, TA = +25°C, unless otherwise noted. Parameter Symbol Condition Min Typ Max Units Feedback Voltage 4.75V ≤ VIN ≤ 25V VCOMP < 2V 1.198 1.222 1.246 V Upper Switch-On Resistance 0.18 Ω Lower Switch-On Resistance 10 Ω Upper Switch Leakage VEN = 0V, VSW = 0V 0 10 µA Current Limit (4) 2.4 3.0 3.6 A Current Limit Gain. Output Current to Comp Pin Voltage 1.95 A/V Error Amplifier Voltage Gain 400 V/V Error Amplifier Transconductance ∆IC = ±10µA 500 770 1100 µA/V Oscillator Frequency 342 380 418 KHz Short Circuit Frequency VFB = 0V 20 35 54 KHz Sync Frequency Sync Drive 0V to 2.7V 445 600 KHz |
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