Press Center
 
Home About us Products Support Quality & Certification Career Contact us
• Power Management
    Linear Regulators
    Low Dropout Linear Regulators
    DDR Termination Regulators
    Shunt Reference Regulators
    Step Down Switching Regulators
    Switching Regulator
    Step-Up DC-DC Converter
    PWM Controller
    White LED Driver
    Supervisory Circuit
    Voltage Detection and System R
    USB Power Switch
    Power Factor Control
    Li-Battery Protection or Charg
    FET Bias Controllers
    Combo IC
    Inverting DC-DC Converter
• Amplifier / Comparator
    Audio Amplifiers
    Operational Amplifier
    Voltage Comparator
• Analog Switches
    Video Signal Switch
    Analog Multiplexers, Demultipl
• Hall ICs
• Special Application ICs
    Motor Controller IC
    Interface and Driver Circuit
    Telecommunication Circuit
    Melody IC
    Alarm /Sound Generator IC
    Remote Controller IC
    Television Circuit
    Leakage Current Detector
    Automotive IC
    A-D or D-A Converters
    Miscellaneous
    Radio and Cassette Recorder Ci
    Timer
    Mouse&Keyboard Controller
    Transient Voltage Suppressors
    Sense Monitor
    Video Filter
    ZCB snubber
• Logic
• TRANSISTORs
• MOSFETs
    JFET
    Power Mosfet
• TRIACs
• SCRs
• DIODEs
 
Home > Motor Controller IC
UMD9117 Datasheet
  

DC TAIL ROTOR MOTOR, STEERING GEAR MOTOR DRIVE CIRCUIT

 

 

DESCRIPTION

 

UTC UMD9117 is an integrated brush DC motor drive solution
for battery-powered toys, low-voltage or battery-powered motion
control applications. It has H bridge driver and uses the PMOS and
NMOS power transistors with low output resistance. Low
on-resistance ensures the circuit to consume lower power in
operating at a continuous current, and ensures the circuit to
operate stably for a long time. The circuit has a wide working
voltage range from 2.5V to 5V. The maximum continuous output
current reaches 0.5A, and the maximum peak output current can
be 0.8A when VDD is 4V.
UTC UMD9117 has on-chip temperature protection function.
When load motor with low internal resistance is in locked rotor,
UTC UMD9117 output current will increase momentarily, power
dissipation of the circuit will go up sharply, and the chip
temperature will soar. But, when the chip temperature exceeds a
maximum temperature point (typically 160°C) set by internal
temperature protection circuit, the internal circuit will switch off the
on-chip power switching transistor of UTC UMD9117, and switch
off load current, preventing potential safety hazards such as
fuming, igniting of plastic package caused by over temperature etc.
Only after having confirmed that the circuit has returned to safety
temperature, the on-chip temperature hysteresis circuit can be
allowed to re-control the circuit.

FEATURES

* Low standby current (0.1μA typ.)
* Low-Power Sleep Mode(0.08μA typ.)
-- nSLEEP PIN
* PMOS and NMOS power transistors with low output resistance
If IO is 100mA, RON of power transistor is 1.5Ω
If IO is 200mA, RON of power transistor is 1.6Ω
If IO is 300mA, RON of power transistor is 1.7Ω
* Built-in Subsequent stream diode
—No external diode required
* Low input current
Pull-down resistance is 2.1MΩ typical
1.4uA input current when input voltage is 3V
* On-chip thermal shut down (TSD) with hysteresis
* ESD rate: 2.5KV(HBM)

About us  |  Products  |  Contact us
Copyright 2011 UTC All received