13892 datasheet(13/161 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

13892

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

VSRTC ACTIVE MODE – DC

Output Voltage VOUT

VINMIN < VIN < VINMAX, ILMIN < IL < ILMAX

VSRTC

1.15

1.20

1.25

Active Mode Quiescent Current

VINMIN < VIN < VINMAX, IL = 0

IRTCQS

0.8

1.0

µA

CLK AND MISO

Input Low CS, MOSI, CLK

VINCSLO

VINMOSILO

VINCLKLO

0.3*SPIVCC

Input High CS, MOSI, CLK

VINCSHI

VINMOSIHI

VINCLKHI

0.7*SPIVCC

SPIVCC+0.3

Output Low MISO, INT

Output sink 100 µA

VOMISOLO

VOINTLO

0.2

Output High MISO, INT

Output source 100 µA

VOMISOHI

VOINTHI

SPIVCC-0.2

SPIVCC

SPIVCC Operating Range

SPIVCC

1.75

3.1

BUCK CONVERTERS

Operating Input Voltage

PWM operation, 0 < IL < IMAX

PFM operation, 0 < IL < IMAX

Extended PWM or PFM operation(13)

VSWIN

3.0

2.8

UVDET

4.65

Output Voltage Range

Switcher 1

Switchers 2, 3, and 4

VSW1

0.6

1.375

1.850

Output Accuracy

PWM mode including ripple, load regulation, and transients (14)

PFM Mode, including ripple, load regulation, and transients

VSWLOPP

VSWLIPPI

Nom-50

Nom

Nom+50

Maximum Continuous Load Current, IMAX, VINMIN<BP<4.65 V

SW1 in PWM mode (SWILIMB = 0, no max current limit)

SW1 in PWM Mode (SWILIMB = 1, no max current limit)(15)

SW2, SW3, SW4 in PWM mode (SWILIMB = 0, no max current limit)

SW2, SW3, SW4 in PWM mode (SWILIMB = 1, no max current limit)(15)

SW1, SW2, SW3, SW4 in PFM mode

ISW1

ISW2,3,4

ISW1, 2, 3, 4

800

1050

800

Maximum Peak Load Current, IPEAK, BP ≤ 4.2 V,

SW1 in PWM Mode (SWILIMB = 1, no max current limit)(15)

SW4 in PWM Mode (SWILIMB = 1, no max current limit)(15)

ISW1

ISW4

1250

1000

Notes

13.

In the extended operating range the performance may be degraded

14.

Transient loading for load steps of ILmax/2

15.

In this mode, current limit protection is disabled for SW1 - SW4 by setting SWILIMB = 1. Therefore, the load on SW1-4 should not exceed

the conditions specified in the table above. Application needs to provide current limit protection circuitry either in battery or as pre-

regulated supply to BP.

Table 5. Static Electrical Characteristics

Characteristics noted under conditions -30

°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

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