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Partno	Mfg	Dc	Qty	Available	Descript
L9904TR	ST	N/a	5000	avai	MOTOR BRIDGE CONTROLLER

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L9904TR
MOTOR BRIDGE CONTROLLER
1/17
L9904
May 2004 FEATURES 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.
MOTOR BRIDGE CONTROLLER
Figure 2. Block Diagram
REV. 3
L9904
Table 2. Pin Function
Figure 3. Pin Connection (Top view)
3/17
L9904
Table 3. 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.
Table 4. Thermal Data see application note 110 for SO packages.
L9904
Table 5. Electrical Characteristcs
(8V < VVS < 20V, VEN = HIGH, -40°C ≤ TJ ≤ 150°C, unless otherwise specified. The voltages are refered to
GND and currents are assumed positive, when current flows into the pin
5/17
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
Table 5. Electrical Characteristcs (continued)
(8V < VVS < 20V, VEN = HIGH, -40°C ≤ TJ ≤ 150°C, unless otherwise specified. The voltages are refered to
GND and currents are assumed positive, when current flows into the pin
L9904
2. not tested in production: guaranteed by design and verified in characterization
Table 5. Electrical Characteristcs (continued)
(8V < VVS < 20V, VEN = HIGH, -40°C ≤ TJ ≤ 150°C, unless otherwise specified. The voltages are refered to
GND and currents are assumed positive, when current flows into the pin
7/17
L9904
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
Table 5. Electrical Characteristcs (continued)
(8V < VVS < 20V, VEN = HIGH, -40°C ≤ TJ ≤ 150°C, unless otherwise specified. The voltages are refered to
GND and currents are assumed positive, when current flows into the pin
L9904
Figure 4. Timing of the ISO-interface
Figure 5. Timing of the drivers for the external MOS regarding the inputs DIR and PWM
9/17
L9904
Figure 6. I(V) characteristics of the K-Line for TX = HIGH and VVS=13.5V
Figure 7. Driving sequence

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