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MC34710 数据表(PDF) 6 Page - Motorola, Inc |
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MC34710 数据表(HTML) 6 Page - Motorola, Inc |
6 / 16 page 34710 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 6 STATIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions 4.75 V ≤ VIO ≤ 5.25 V, 12 V ≤ VB+ ≤ 32 V, and 0°C ≤ TJ ≤ 105°C unless otherwise noted. Typical values noted reflect the approximate parameter mean at TA = 25°C under nominal conditions unless otherwise noted. Characteristic Symbol Min Typ Max Unit VI/O SWITCHING REGULATOR Logic Supply Voltage (IVI/O = 25 mA to 1.0 A) MODE0 = 0 MODE0 = Open VI/O 4.8 3.15 – – 5.2 3.45 V Logic Supply Current VI/O = Nominal, Power Dissipation in Switching Regulator = 0.45 W IVI/O 0.025 – 1.0 A Output On Resistance VB+ = 12 V to 32 V RDS(ON) 0.5 TBD 2.0 Ω Soft Start Threshold Voltage MODE0 = X VI/O(SOFT) –– 2.5 V Current Limit Threshold (TJ = 25°C to 100°C) Normal Operation Soft Start, VI/O ≤ 2.5 V ILIMIT(OP) ILIMIT(SOFT) 2.1 1.3 – – 3.2 1.8 A Minimum Voltage Allowable on VSWITCH Terminal TJ = 25°C to 100°C VVSWITCH(MIN) -0.5 – – V VCORE LINEAR REGULATOR Supply Voltage (IVCORE = 5.0 mA to 500 mA) (Note 10) MODE[2:0] = [0,x,0] MODE[2:0] = [0,x,Open] MODE[2:0] = [Open,x,0] MODE[2:0] = [Open,x,Open] VCORE(NOM) 3.15 2.35 1.71 1.425 – – – – 3.45 2.65 1.89 1.575 V Supply Current VCORE = VCORE(NOM) IVCORE 1.0 – 500 mA VCORE Dropout Voltage VCORE = VCORE(NOM), IVCORE = 0.5 A IVCORE(DROPOUT) 0.8 – – V Regulator Input Voltage VCORE = VCORE(NOM), IVCORE = 0.5 A VLINB+ VCORE(NOM) + 1.0 – 10 V Normal Current Limit Threshold TJ = 25°C to 100°C, VLINB+ = VCORE(NOM) + 1.0 V ILIMIT 800 – 1000 mA Notes 10. Refer to Table 1, page 10. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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类似说明 - MC34710 |
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