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L9904STN/a503avaiMOTOR BRIDGE CONTROLLER
L9904STMN/a15310avaiMOTOR BRIDGE CONTROLLER


L9904 ,MOTOR BRIDGE CONTROLLERBLOCK DIAGRAM10VSRCPRef erenceVCC-1ST BIAS+11Charge CP=V pumpSTH13CB112fST GH1VCCOvervoltage14Under ..
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L9904
MOTOR BRIDGE CONTROLLER
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L9904

October 2002 OPERATING SUPPLY VOLTAGE 8V TO 28V,
OVERVOLTAGE MAX. 40V OPERATING SUPPLY VOLTAGE 6V WITH
IMPLEMENTED STEPUP CONVERTER QUIESCENT CURRENT IN STANDBY MODE
LESS THAN 50μA ISO 9141 COMPATIBLE INTERFACE CHARGE PUMP FOR DRIVING A POWER
MOS AS REVERSE BATTERY PROTECTION PWM OPERATION FREQUENCY UP TO
30KHZ PROGRAMMABLE CROSS CONDUCTION
PROTECTION TIME OVERVOLTAGE, UNDERVOLTAGE, SHORT
CIRCUIT AND THERMAL PROTECTION REAL TIME DIAGNOSTIC
DESCRIPTION

Control circuit for power MOS bridge driver in auto-
motive applications with ISO 9141bus interface.
PRODUCT PREVIEW

MOTOR BRIDGE CONTROLLER
BLOCK DIAGRAM
L9904
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PIN FUNCTION
PIN CONNECTION (Top view)
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L9904
ABSOLUTE MAXIMUM RATINGS

For externally applied voltages or currents exceeding these limits damage of the device may occur!
All pins of the IC are protected against ESD. The verification is performed according to MIL883C, human body
model with R=1.5kΩ, C=100pF and discharge voltage ±2kV, corresponding to a maximum discharge energy of
0.2mJ.
L9904
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THERMAL DATA
see application note 110 for SO packages.
ELECTRICAL CHARACTERISTCS (8V < VVS < 20V, VEN = HIGH, -40°C ≤ TJ ≤ 150°C, unless otherwise spec-

ified. The voltages are refered to GND and currents are assumed positive, when current flows into the pin.
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L9904
not tested in production: guaranteed by design and verified in characterization Internal VVCC is 4.5V ... 5.5V see page 18 for calculation of programmable cross conduction protection time
ELECTRICAL CHARACTERISTICS (continued)
L9904
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ELECTRICAL CHARACTERISTICS (continued)
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L9904

2. not tested in production: guaranteed by design and verified in characterization
ELECTRICAL CHARACTERISTICS (continued)
L9904
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2. not tested in production: guaranteed by design and verified in characterization tested with differed values in production but guaranteed by design and verified in characterization
ELECTRICAL CHARACTERISTICS (continued)
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L9904
Figure 1. Timing of the ISO-interface
Figure 2. Timing of the drivers for the external MOS regarding the inputs DIR and PWM
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