33710 datasheet(8/17 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

34710

DYNAMIC ELECTRICAL CHARACTERISTICS

Characteristics noted under conditions 4.75 V ≤ VIO ≤ 5.25 V, 13 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

Switching Rise and Fall Time

Load Resistance = 100 Ω, VB+ = 30 V

tR, tF

SUPERVISOR CIRCUITRY (RST)

RST

Delay

Cdelay = 0.1 µF

tDELAY

RST

Filter Time

VB+ = 9.0 V

tFILTER

2.0

4.0

8.0

RST

Fall Time

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

–

C Delay

Charge Current

Threshold Voltage

ICDLY

VTHCD

2.0

1.7

3.5

2.0

5.0

2.2

INTERNAL OSCILLATOR

Charge Pump and VI/O Switching Regulator Operating Frequency

VB+ = 12 V to 32 V

fOP

140

170

260

kHz

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