34920(2004) Ver la hoja de datos (PDF) - Freescale Semiconductor

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Fabricante

34920
(Rev.:2004)

2.8 Ω (Typ) Quad H-Bridge Motor Driver

Freescale Semiconductor 

Freescale Semiconductor, Inc.

STATIC ELECTRICAL CHARACTERISTICS (continued)

Characteristics noted under conditions 21 V ≤ VVB+ ≤ 42 V, TA = 10°C to 55°C, TJ max = 135°C, VCC = 5.25 V max unless otherwise

noted. Typical values noted reflect the approximate parameter mean at TA = 25°C under typical conditions unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

V1 AND V2 VOLTAGE REGULATORS (continued)

Voltage Overshoot

External VCC Load Current from 0.01 to 0.500 A, tRISE > 100 ns

VOVRSHT

–

–

5.0%

–

Load Ripple

0.5 A maximum

VOUTRIPPLE

mV

–

100

–

VBOOST GENERATOR

Charge Pump Output Voltage

ILOAD = 1.0 mA

VVb -VVB+

V

10

–

14

BIPOLAR CURRENT REGULATED STEP MOTOR DRIVE SYSTEM

Peak Step Motor Current, Phase A or B

Motor Not Stalled

ISTEPMOTOR

Peak

–

A

–

0.6

Maximum Allowable Voltage Drop Across Any H-Bridge Switch

VDROP

ILOAD = 0.6 A (from Output to GND) or ILOAD = 0.6 A (from VVB+ to Output)

–

V

–

1.6

Comparator High Threshold Voltage

CURR_I0_PHASEX=0, CURR_I1_PHASEX=0

VTH

mV

450

550

650

Comparator Medium Threshold Voltage

CURR_I0_PHASEX=1, CURR_I1_PHASEX=0

VTM

mV

300

–

440

Comparator Low Threshold Voltage

CURR_I0_PHASEX=0, CURR_I1_PHASEX=1

VTL

mV

105

–

255

VOOFF Output Leakage Current for Step Motor Driver Outputs

VOOFF = 5.0 V

IOOFF

-1.0

0.1

mA

1.0

Step Motor Driver Thermal Shutdown Junction Temperature

TJ (SHUTDOWN)

155

–

175

oC

Step Motor Driver Thermal Enable Junction Temperature

TJ (ENABLE)

135

–

155

oC

Single MOSFET

Typical Value @ TJ = 25°C

RDS(ON)

Ω

–

1.43

–

MOTOROLA ANALOG INTEGRATED CIRFCoUrITMDEoVrIeCEIDnAfoTArmation On This Product,

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34920

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