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7443320150 数据表(PDF) 3 Page - Microchip Technology |
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7443320150 数据表(HTML) 3 Page - Microchip Technology |
3 / 44 page 2012 Microchip Technology Inc. DS22326A-page 3 MCP19035 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † VIN - VGND........................................................ -0.3V to +30V VBOOT................................................................ -0.3V to +36V VHDRV, HDRV Pin................. +VPHASE -0.3V to VBOOT+0.3V VLDRV, LDRV Pin.....................+ (VGND-0.3V) to (VCC+0.3V) Max. Voltage on Any Pin ...........+ (VGND-0.3V) to (VCC+0.3V) Storage Temperature ....................................-65°C to +150°C Maximum Junction Temperature................................. +150°C ESD protection on all pins (HBM) .................................... 1 kV ESD protection on all pins (MM) .....................................200V † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS Electrical Specifications : Unless otherwise noted, VIN = 12V, FSW = 300 kHz, CIN = 1.0 µF, TA = +25°C (for typical values), TA = -40°C to +125°C (for minimum and maximum). Parameters Symbol Min Typ Max Units Conditions Inputs Input Voltage Range VIN 4.5 — 30 V UVLO (VIN Rising) UVLOON 44.2 4.4 V UVLO (VIN Falling) UVLOOFF 3.4 3.6 3.8 V UVLO Hysteresis UVLOHYST — 600 — mV Input Quiescent Current I(VIN)— 6 8 mA Shutdown Current IIN_SHDN — 25 50 µA SHDN = GND. Internal Voltage Regulator is also disabled Linear Regulator Output Voltage VCC 4.875 5 5.125 V 6V VIN < 30V Output Current IVCC-OUT 50 — mA 6.5V VIN < 30V, Note 2 Short-Circuit Output Current IVCC-OUT_SC — — 100 mA VIN = 6V, RLOAD < 0.1 Load Regulation — 0.1 — % Note 1 Line Regulation — 0.05 — % Note 1 Dropout Voltage — 0.75 1.3 V IVCC_OUT = 50 mA Power Supply Rejection Ratio PSRR — 70 — dB f 1000 Hz, IVCC_OUT = 50 mA CIN = 0 µF, CVCC-OUT = 4.7 µF, Note 1 Internal Oscillator Switching Frequency FSW 255 300 345 kHz See Section 4.4, Internal Oscillator Ramp Signal Amplitude VRAMP 0.911.1 VPP Note 1 Reference Voltage Reference Voltage Generator VREF 585 600 615 mV Note 1: Ensured by design. Not production tested. 2: Limited by the maximum power dissipation of the case. 3: Possibility to be adjusted for high volumes. |
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类似说明 - 7443320150 |
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