MC33997 datasheet(7/20 Pages) MOTOROLA

Numer części	MC33997

Szczegółowy opis	Switching Power Supply with Linear Regulators

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Producent	MOTOROLA [Motorola, Inc]

Strona internetowa	http://www.freescale.com

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MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA

33997

7

STATIC ELECTRICAL CHARACTERISTICS (continued)

Characteristics noted under conditions 9.0 V ≤ VPWR ≤ 16 V, -40°C ≤ TJ = TA ≤ 125°C, using the typical application circuit (see

Figure 8) 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

LINEAR REGULATOR VDDL

VDDL Output Voltage

VPWR = KA_VPWR = 14 V, IVDDL = 200 mA

VDDL

3.15

–

3.45

V

VDDL Line Regulation

VDDH = 4.8 V to 5.2 V, IVDDL = 400 mA

RegLnVDDL

-70

–

70

mV

VDDL Load Regulation

VPWR = KA_VPWR = 14 V, IVDDL = 10 mA to 400 mA

RegLdVDDL

-70

–

70

mV

DRVL Output Current

VPWR = KA_VPWR = 14 V, VDRVL = 1.0 V

IDRVL

5.0

11

25

mA

VDDL Active Discharge Resistance

VPWR = KA_VPWR = 14 V, EN = 0 V, IFBL = 10 mA

RLDisch

1.0

–

10

Ω

VDDH to VDDL Active Clamp Resistance

VPWR = KA_VPWR = 14 V, EN = 0 V, IVDDH = 50 mA, VFBKB = 0 V

RCLAMP

0.6

–

10

Ω

VDDL Output Capacitor Capacitance (Note 12)

CVDDL

–

68

–

µF

VDDL Output Capacitor ESR (Note 12)

ESRVDDL

–

0.125

–

Ω

KEEP-ALIVE (STANDBY) REGULATOR VKAM

VKAM Output Voltage

IVKAM = 5.0 mA, VPWR = KA_VPWR = 18 V, EN = 5.0 V

VKAM

3.0

–

3.6

V

VKAM Output Voltage, EN = 0 V (Standby Mode)

VPWR = KA_VPWR = 26 V, IVKAM = 0.5 mA

VPWR = KA_VPWR = 18 V, IVKAM = 5.0 mA

VPWR = KA_VPWR = 5.0 V, IVKAM = 10.0 mA

VPWR = 0 V, KA_VPWR = 3.5 V, IVKAM = 5.0 mA

VKAM

3.0

2.0

–

3.6

3.5

V

VKAM Line Regulation, EN = 0 V (Standby Mode)

VPWR = KA_VPWR = 5.0 V to 18 V, IVKAM = 2.0 mA

RegLnVKAM

-20

–

20

mV

VKAM Load Regulation, EN = 0 V (Standby Mode)

VPWR = KA_VPWR = 14 V, IVKAM = 1.0 mA to 10 mA

RegLdVKAM

0

–

100

mV

Differential Voltage VKAM - VDDL

EN = 5.0 V, IVKAM = 5.0 mA, VPWR = KA_VPWR = 14 V, IVDDL = 200 mA

RegVKAM

-20

–

20

mV

VKAM Output Capacitor Capacitance (Note 12)

CVKAM

–

4.7

–

µF

VKAM Output Capacitor ESR (Note 12)

ESRVKAM

–

1.4

–

Ω

Notes

12.

Recommended value.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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