MC34702EK_R2 查看數據表（PDF） - Freescale Semiconductor

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MC34702EK_R2

3.0 A 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 = 3.3 V 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) Pulldown Resistance

RST Low-Level Output Voltage, IOL = 5.0 mA

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

RST Undervoltage Threshold on VOUT (∆VOUT/VOUT) (17)

RST Overvoltage Threshold on VOUT (∆VOUT/VOUT) (17)

RST Undervoltage Threshold on VLDO (∆VLDO/VLDO) (17)

RST Overvoltage Threshold on VLDO (∆VLDO/VLDO) (17)

RST Timer Voltage Threshold

RST Timer Source Current (RT pin at 0 V)

RST Timer Leakage Current

RST Timer Saturation Voltage, Reset Timer Current = 300 µA

Maximum Recommended Value of the Reset Timer Capacitor

CLKSEL Threshold Voltage

CLKSEL Pullup Resistance

ADDR Threshold Voltage (17)

ADDR Pullup Resistance

Thermal Shutdown (IC sensor) (17)

Thermal Shutdown Hysteresis (17)

SDA, SCL PINS I2C BUS (STANDARD)

VTH_EN

1.0

1.5

2.0

V

RPU

30

55

90

kΩ

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

%

VTH-RT

1.0

1.2

1.5

V

IS-RT

-17

–

-34

mA

ILKG-RT

-1.0

–

1.0

µA

VSAT-RT

–

35

100

mV

Ct

–

–

47

µF

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)

Input Threshold Voltage (Pin SDA)

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

VLTH

VLTH

II

1.3

–

1.7

V

1.3

–

1.7

V

–

1.0

10

µA

SDA Low-Level Output Voltage, 3.0 mA 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

34702

11

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