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MC34703PNB bảng dữ liệu(PDF) 7 Page - Freescale Semiconductor, Inc |
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MC34703PNB bảng dữ liệu(HTML) 7 Page - Freescale Semiconductor, Inc |
7 / 46 page Analog Integrated Circuit Device Data Freescale Semiconductor 7 34703 ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics Characteristics noted under conditions -40°C ≤ TJ ≤ 85°C unless otherwise noted. Input voltages 2.8 V ≤ VIN ≤ 13.5 V. Typical values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted. Characteristic Symbol Min Typ Max Unit GENERAL (VIN1, VIN2, VBST, VDDI) (9) Operating Voltage Range (V IN1, VIN2) VIN 2.8 – 13.5 V Start-Up Voltage Threshold (Boost Switching) VST – 1.6 1.8 V VBST Undervoltage Lockout (Internal use only) VBSTUVLO 5.5 6.0 6.5 V Input DC Supply Current (Normal Operation Mode, Enabled) (8) IIN – 60 – mA VIN1 Pin Input Supply Current (EN1 = EN2 = 0) (8) IIN1 – 13 – mA VIN2 Pin Input Leakage Current (EN1 = EN2 = 0) (8) IIN2 – 100 – µA Output Voltage (11) VOUT 10% VIN – 5.0 V Output DC Current (10) (11) IOUT 0.1 – 12 A BUCK CONVERTER (INV, VOUT) Buck Converter Feedback Voltage IVOUT = 100 mA to 10 A, VIN1 = VIN2 = 2.8 V to 13.5 V. No RB Resistor. Includes Load Regulation Error VINV 0.784 0.8 0.816 V Buck Converter Voltage Margining Step VMVO – 1.0 – % Buck Converter Line Regulation (12) VIN1 = VIN2 = 2.8 V to 13.5 V, IVOUT = 10 A REGLNVO -1.0 – 1.0 % Buck Converter Load Regulation (12) IVOUT = 100 mA to 10 A REGLDVO -2.0 – 2.0 % VOUT Input Leakage Current VOUT = 5.0 V IVOUTLK 1.7 4.6 7.5 mA High-Side Power MOSFET Q1 RDS(ON) (10) ID = 1.0 A, TA = 25°C, VBST = 8.0 V RDS(ON) – – 25 m Ω Low-Side Power MOSFET Q2 RDS(ON) (10) ID = 1.0 A, TA = 25°C, VBST = 8.0 V RDS(ON) – – 10 m Ω Buck Converter Peak Current Limit (High Level) IHLIM 12 15 19 A Buck Converter Valley Current Limit (Low Level) ILLIM 6.0 7.5 9.0 A VOUT Internal Pull-Down MOSFET Current Limit TA = 25°C, VBST = 8.0 V IQ3LIM 0.75 1.7 2.0 A VOUT Internal Pull-Down MOSFET RDS(ON) ID = 1.0 A, TA = 25°C, VBST = 8.0 V Q3RDS(ON) – – 3.0 Ω Thermal Shutdown (12) TSD 150 170 190 °C Thermal Shutdown Hysteresis (12) TSDHys – 15 – °C Notes 8. Not production tested; typical values for reference only. 9. VDDI is an internal supply voltage. It should not be used for any external purpose. 10. Design information only; not production tested. 11. Minimum output voltage can be adjusted to 0.8 V when VIN < 8 V. Maximum currents subject to sufficient heat-sinking. 12. Guaranteed by design. |
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Mô tả tương tự - MC34703PNB |
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