MC34713 查看數據表（PDF） - Freescale Semiconductor

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MC34713

5.0 A 1.0 MHz Fully Integrated Single Switch-Mode Power Supply

Freescale Semiconductor 

ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

Table 4. Dynamic Electrical Characteristics

Characteristics noted under conditions 3.0 V ≤ VIN ≤ 6.0 V, -40°C ≤ TA ≤ 85°C, GND = 0 V unless otherwise noted. Typical

values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

BUCK CONVERTER (PVIN, SW, PGND, BOOT)

Switching Node (SW) Rise Time (16)

(PVIN = 3.3 V, IOUT = 5.0 A)

Switching Node (SW) Fall Time (16)

(PVIN = 3.3 V, IOUT = 5.0 A)

tRISE

-

14

-

ns

tFALL

-

20

-

ns

Soft Start Duration (Normal Mode)

ILIM= 1.25 - 1.49 V

1.50 - 1.81 V

tSS

1.82 - 2.13 V

2.14 - 2.50 V

-

3.2

-

-

1.6

-

ms

-

0.8

-

-

0.4

-

Over Current Limit Timer

Over Current Limit Retry Time-out Period

Output Undervoltage/Overvoltage Filter Delay Timer

OSCILLATOR (FREQ)

tLIM

-

10

-

ms

tTIMEOUT

80

-

120

ms

tFILTER

5.0

-

25

µs

Oscillator Default Switching Frequency

Oscillator Frequency tolerance is ±10% (FREQ = GND)

fSW

-

1.0

-

MHz

Oscillator Switching Frequency Range

CONTROL AND SUPERVISORY (SD, PG)

PG Reset Delay

Thermal Shutdown Retry Time-out Period (16)

Notes

16. Design information only, this parameter is not production tested.

fSW

200

tPGRESET

8.0

tTIMEOUT

80

-

1000

KHz

-

12

ms

-

120

ms

34713

8

Analog Integrated Circuit Device Data

Freescale Semiconductor

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