ZXBM5409Q
BRUSHED DC MOTOR DRIVER WITH SERVO CONTROL
Description
Pin Assignments
The ZXBM5409Q is a protected H-bridge driver designed specifically
for manual automotive headlight-beam control and industrial servo
control applications with DC-brush motor loads. The integrated full-
bridge driver output stage is composed of high-current, low-RDSON H-
bridge MOSFETs to maximize efficiency.
(Top View)
1
2
3
4
8
REF
FB
HYST
OUT1
VDD
To simplify the circuit design and minimize external components, the
device integrates voltage and temperature-compensated internal
references, amplifiers, and output H-bridge power switches with low
7
RANGE
GND
6
5
RDSON
.
OUT2
For system flexibility, the servo control forward and reverse
hysteresis, deadband, and angle amplification are easily
programmable by external resistors.
PDIP-8 (Type A1)
To help protect the motor coil, the ZXBM5409Q provides fault
condition protection, such as RANGE input short to GND, short-to-
supply voltage, or broken wires, by stopping the motor and
disconnecting the output stage. In case of supply undervoltage and
overvoltage, the device shuts down the output drive to help prevent
overvoltage stress on the coil. The overcurrent protection monitors
the output current and shuts down the outputs stage with periodic
retry to help protect the coil from device burnout. Overtemperature
shutdown provides thermal protection for the device.
The ZXBM5409Q is available in industry standard PDIP-8 (Type A1)
package and is qualified to AEC-Q100 Grade 1 and is automotive
compliant supporting PPAPs.
Applications
Features
•
•
Automotive Headlight Position Servo Motor
8V/12V/18V Servo DC Motors
• Servo DC Motor Drive
• Wide Operating Voltage Range: 8V to 18V
• Built-In H-Bridge with Low RDSON Resistance
• Output Drive Current Capability of 0.8A (Peak Current of 1.6A)
• Fault Protection—RANGE Short to GND, Supply or Broken Wires
• Overvoltage and Undervoltage Shutdown
• Overcurrent Protection
• Thermal Protection
• Green Moulding in PDIP-8 (Type A1)
•
•
•
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q100 Standards for High Reliability
• PPAP Capable (Note 4)
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. Automotive products are AEC-Q100 qualified and are PPAP capable. Refer to https://www.diodes.com/quality/.
1 of 14
www.diodes.com
April 2019
© Diodes Incorporated
ZXBM5409Q
Document number: DS41271 Rev. 3 - 2
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