33730 datasheet(11/27 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33730

ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

Table 5. Dynamic Electrical Characteristics

Characteristics noted under conditions 6.0V

≤ KA_VBAT = VBAT ≤ 26.5V, -40°C ≤ TA ≤ 125°C using the typical application

circuit, unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

GENERAL

Power On Reset Delay Time (HR Timer) (see Table 7)

tD_POR

—

(Time to RESET up after Regulator in regulation)

Power On Reset Delay Time (HR Timer) Accuracy(10)

-5.0

—

+5.0

Programming Pin Latching Delay(10)

tLD_P

—

500

—

µs

SWITCHING REGULATOR

Oscillator Frequency (Switching Freq.) Range - Adjustable (Figure 4)

Freq

100

—

500

kHz

Oscillator Frequency Tolerance at 100kHz (FREQ Pin Open)

fTOL

—

110

kHz

SW Node Rise Time, VBAT = KA_VBAT = 14V, ISW = 500mA

(10)

SR pin shorted to SW pin

tSW_R

SR pin open

SR pin shorted to BOOT pin

SW Node Fall Time, VBAT = KA_VBAT = 14V, ISW = 500mA(10)

SR pin shorted to SW pin

tSW_F

TBD

SR pin open

TBD

SR pin shorted to BOOT pin

TBD

Notes

10.

Guaranteed by design.

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