PC34710EWR2 datasheet(8/16 Pages) MOTOROLA

Part #	PC34710EWR2

Description	Adjustable Dual Output Switching Power Supply

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Manufacturer	MOTOROLA [Motorola, Inc]

Direct Link	http://www.freescale.com

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8 / 16 page

34710

MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA

8

DYNAMIC 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

Duty Cycle

D

45

–

55

%

Switching Rise and Fall Time

Load Resistance = 100

Ω, VB+ = 30 V

tr, tf

25

–

ns

Switching Rise and Fall Time

Load Resistance = 100

Ω, VB+ = 30 V

tr + tf

––

50

ns

SUPERVISOR CIRCUITRY

RST

Delay

Cdelay = 0.1 µF

tdelay

48

–

82

ms

RST

Filter Time

VB+ = 9.0 V

tfilter

1.0

–

6.0

µs

RST

Fall Time

CL = 100 pF, RPULLUP = 4.7 kΩ, 90% to 10%

tf

–

125

ns

External Low (Note 12)

VI/O = 5.0 V

tslpl

(Note 13)

30

–

ns

RST

Recovery Time Before Next RST Input (Note 12)

VI/O = 5.0 V

tphsl

–

10

µs

INTERNAL OSCILLATOR

Charge Pump and VI/O Switching Regulator Operating Frequency

VB+ = 9.0 V to 32 V

fOP

140

–

260

kHz

Notes

12.

See Figure 2, RST Timing, page 9.

13.

tslpl is an input.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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