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33394

Switch Mode Power Supply with Multiple Linear Regulators and High Speed CAN Transcelver

Freescale Semiconductor 

Freescale Se3m33ic94onductor, Inc.

3. ELECTRICAL CHARACTERISTICS (–40°C ≤ TA ≤ +125°C; +4.0 V ≤ VBAT ≤ +26.5 V using the 33394 typical application

circuit – see Figure 1, unless otherwise noted.)

Characteristic

Symbol

Min.

Typ.

Max.

Unit

DC CHARACTERISTICS:

VKAM

VKAM Feedback Reference Voltage, pin VKAM_FB

Normal Mode (switcher running), IVKAM = 0 to –50mA

VKAMREF

1.242

1.267

1.292

V

VKAM Load Regulation, VBAT = 13.3 V; IVKAM = –0 to –50 mA

LoadRgVKAM

–1.6

0

%

VKAM Line Regulation, VBAT = 4.0 V to 26.5 V; IVKAM = –50 mA

LineRgVKAM

–0.8

0.8

%

VKAM Tracking to VDDL Voltage, VDDL – VKAM

VTVKAM

–1.6

VBAT = 4.0 V to 26.5 V; IVKAM = 0 to –50 mA, IVDDL = 0 to –400mA

0.8

%

VKAM Feedback Voltage — Power Down Mode

VKAM

0.675

V

3.0 V ≤ Battery Voltage ≤ 26.5 V, IVKAM = –12 mA

VKAM Reset Voltage (/PORESET)

Range of VKAM where Resets must remain asserted

VVKAM_HRST

0.5

VKAM

V

–5%

VKAM Output Current (Normal Mode), VBAT = 4.0 V to 26.5 V

IVKAM

–50

mA

VKAM Output Current (Sleep Mode and when VBAT ≤ 4.0 V)

IVKAM(sleep)

–12

mA

VKAM Short Circuit Current, VKAM = 0 V

ISC

–140

–50

mA

VKAM Feedback VKAM_FB Input Current, VKAM_FB = 5.0 V

IVKAM_FB

0

2.0

µA

VKAM Output Capacitance Required, Capacitor Initial Tolerance 10%

22

100

µF

VPP

VPP 5.0V Output Voltage (Default), IVPP = –150 mA

VPP5

4.86

5.0

5.12

V

VPP 3.3 V Output Voltage (Programmed by SPI)

IVPP = –150 mA

VPP3

3.22

3.3

3.38

V

VPP Load Regulation, VBAT = 13.3 V; IVPP = 0 to –150 mA

LoadRgVPP

–0.8

0.8

%

VPP Line Regulation, VBAT = 4.0 V to 26.5 V; IVPP = –150 mA

LineRgVPP

–0.4

0.4

%

VPP Tracking to VDDH Voltage, VDDH – VPP,

VBAT = 4.0 V to 26.5 V; IVPP = 0 to –150 mA;

IVDDH = 0 to –400 mA

VTVPP

–0.8

0.8

%

VPP Drop Out Voltage, VPRE — VPP (VPP set to default 5.0V)

IVPP = –150 mA; Decrease VBAT until VPP is out of specification

(less than 4.86 V)

VDOV

0.4

V

VPP Output Current, VBAT = 4.0 V to 26.5 V

VPP Short Circuit Current, VPP = 0 V

Thermal Shutdown Junction Temperature

Thermal Shutdown Hysteresis

NOTE:

1. Guaranteed by design but not production tested.

(Note 1)

(Note 1)

IVPP

ISC

TSDIS

TSHYS

–360

150

5.0

–150

mA

–165

mA

190

°C

20

°C

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