MC34701 查看數據表（PDF） - Freescale Semiconductor

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MC34701

1.5A Switch-Mode Power Supply with Linear Regulator

Freescale Semiconductor 

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

Table 3. Static Electrical Characteristics (continued)

Characteristics noted under conditions -40°C ≤ TA ≤ 85°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3V using

the typical application circuit (see Figure 33), unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

CONTROL AND SUPERVISORY CIRCUITS

Enable (EN1, EN2) Input Voltage Threshold

Enable (EN1, EN2) Pull-down Resistance

VEN-TH

REN-PD

1.0

1.5

2.0

V

30

55

90

kΩ

RST Low-level Output Voltage, IOL = 5.0mA

RST Leakage Current, OFF State, Pulled Up to 5.25V

RST Under-voltage Threshold on VOUT (∆VOUT/VOUT)(17)

RST Over-voltage Threshold on VOUT (∆VOUT/VOUT)(17)

RST Under-voltage Threshold on VLDO (∆VLDO/VLDO)(17)

RST Over-voltage Threshold on VLDO (∆VLDO/VLDO)(17)

VOL

–

–

0.4

V

ILKG-RST

–

–

10

µA

VOUTI TH

-14

–

-0.5

%

VOUTI TH

0.5

–

14

%

VLDOI TH

-12

–

-4.0

%

VLDOI TH

4.0

–

12

%

RST Timer Voltage Threshold

VTH-RT

1.0

1.2

1.5

V

RST Timer Source Current (RT pin at 0V)

IS-RT

-17

–

-34

mA

RST Timer Leakage Current

RST Timer Saturation Voltage, Reset Timer Current = 300µA

Maximum Recommended Value of the Reset Timer Capacitor

I LKG-RT

-1.0

–

1.0

µA

V SAT-RT

–

35

100

mV

Ct

–

–

47

µF

CLKSEL Threshold Voltage

CLKSEL Pull-up Resistance

ADDR Threshold Voltage(17)

ADDR Pull-up Resistance

Thermal Shut-down (IC sensor) (17)

Thermal Shut-down Hysteresis(17)

SDA, SCL PINS I2C BUS (STANDARD)

VTHCLKS

1.2

1.6

2.0

V

RPU-CLKS

60

120

240

kΩ

VTHADDR

1.2

1.6

2.0

V

RPU-ADDR

60

120

240

kΩ

TLIM

150

170

190

°C

TLIMHYS

–

10

–

°C

Input Threshold Voltage (Pin SCL), Rising Edge(17)

VLTH

1.3

–

1.7

V

Input Threshold Voltage (Pin SDA)

SDA, SCL Input Current, Input Voltage = 5.25V (VIN1)

VLTH

IIN

1.3

–

1.7

V

–

1.0

10

µA

SDA Low-level Output Voltage, 3.0mA Sink Current

SDA, SCL Capacitance(17)

Notes

17. Design information only. This parameter is not production tested.

VOL

CINPUT

–

–

0.4

V

–

7.0

10

pF

Analog Integrated Circuit Device Data

Freescale Semiconductor

34701

11

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