April 1992 LM18298 Dual Full-Bridge Driver LM18298 high volt
|
|
|
Top Searches for this datasheet
LM18298 Dual Full-Bridge Driver
April 1992
LM18298 Dual Full-Bridge Driver
LM18298 high voltage high current dual full-bridge driver designed accept standard logic levels drive inductive loads such relays solenoids stepping motors enable inputs provided gate input control signals emitters lower transistors each bridge connected together corresponding external terminal used connection current sensing resistor additional supply input provided accommodate conventional logic supply voltages
Features
Power supply voltage output channel saturation voltage Thermal shutdown protection Logical ``0'' input voltage (High noise immunity) replacement L298N
Applications
stepper motor drivers Relay solenoid drivers
Block
Connection Diagrams
9302
9302
220-15 Order Number LM18298T Package Number TA15A
C1995 National Semiconductor Corporation
9302
RRD-B30M115 Printed
Absolute Maximum Ratings (Note
Military Aerospace specified devices required please contact National Semiconductor Sales Office Distributors availability specifications Main Supply (Pin Logic Supply (Pin Logic Inputs (Pins Peak Output Current (Per Channel) Non-Repetitive Repetitive (80% duty cycle Operation
Sense Voltage (Pins Power Dissipation (Note
Susceptibility (Note Lead Temperature (Soldering seconds) Storage Temperature Range
Operating Ratings
Junction Temperature Range (TJ) Main Supply (Pin
Electrical Characteristics
unless otherwise specified Symbol Parameter Main Supply Voltage (Pin Conditions Typical (Note Limit (Note Logic Supply Voltage (Pin Main Supply Quiescent Current (Pin Enable Input Enable Input Enable Input Logic Supply Quiescent Current (Pin Enable Input Enable Input Enable Input Level Input Voltage (Pins High Level Input Voltage (Pins Level Input Current (Pins High Level Input Current (Pins Level Enable Voltage (Pins High Level Enable Voltage (Pins Level Enable Input Current (Pins High Level Enable Input Current (Pins Enable Enable Input Input
Units (Limits) (min) (max) (min) (max)
(max)
(max)
(min) (max) (min) (max) (max) (max) (min) (max) (min) (max) (max) (max)
Electrical Characteristics (Continued) unless otherwise specified
Symbol Parameter Source Saturation Voltage (Pins Sink Saturation Voltage (Pins Total Drop Sensing Voltage (Pins Conditions Continuous Continuous Source Current Turn-Off Delay Source Current Fall Time Source Current Turn-On Delay Source Current Rise Time Sink Current Turn-Off Delay Sink Current Fall Time Sink Current Turn-On Delay Sink Current Rise Time Commutation Frequency Input (Figure (Figure Input (Figure (Figure Input (Figure (Figure Input (Figure (Figure Typical (Note Limit (Note
Units (Limits) (max)
(max)
(max)
Vsense
(min) (max)
Note Absolute Maximum Ratings indicate limits beyond which damage device occur electrical specifications apply when operating device beyond specified Operating Ratings Note maximum power dissipation must derated elevated temperatures function maximum allowable power dissipation temperature number given Absolute Maximum Ratings whichever lower typical junction-tocase thermal resistance (iJC) LM18298 Note Human body model discharged through resistor Note Typicals represent most likely parametric norm Note Limits guaranteed 100% tested
Typical Performance Characteristics
Output Voltage (See Figure Output Voltage (See Figure Maximum Power Dissipation
9302
Source Current Switching Times
Source Current Switching Times
Main Supply Quiescent Current
9302
Sink Current Switching Times
Sink Current Switching Times
Logic Supply Quiescent Current (ISS
9302
Test Circuits
9302
FIGURE Input Enable Threshold Test Circuit
9302-5
FIGURE 2(a) Source Current Switching Time Test Circuit FIGURE 2(b) Source Current Switching Time Definitions
9302
9302-7
FIGURE 3(a) Sink Current Switching Time Test Circuit FIGURE 3(b) Sink Current Switching Time Definitions
9302
Applications Information
9302
9302-9
Enable
Inputs Input Input Input Input
Motor Direction Clockwise Counterclockwise
Enable Input
Motor Dynamic Braking Coast Stop
High
Input
Motor Dynamic Braking Coast Stop
Input Input Dynamic Braking Input Input Input Coast Stop
High don't care
Don't Care
FIGURE Bidirectional Motor Control
FIGURE 2-Motor Controller (Using both High- Low-Side Driver Modes)
9302
FIGURE Two-Phase Bipolar Stepper Motor Control Circuit CLAMP DIODES When driving inductive loads diodes necessary clamp spikes LM18298 outputs Clamp diodes must have recovery time better forward drop less rated load current Typical devices MB346 (Microsemi Corp Santa V331X (Varo Semiconductor Garland
LM18298 Dual Full-Bridge Driver
Physical Dimensions inches (millimeters)
Order Number LM18298T Package Number TA15A
LIFE SUPPORT POLICY NATIONAL'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT NATIONAL SEMICONDUCTOR CORPORATION used herein Life support devices systems devices systems which intended surgical implant into body support sustain life whose failure perform when properly used accordance with instructions provided labeling reasonably expected result significant injury user
National Semiconductor Corporation 1111 West Bardin Road Arlington 76017 1(800) 272-9959 1(800) 737-7018
critical component component life support device system whose failure perform reasonably expected cause failure life support device system affect safety effectiveness
National Semiconductor Europe (a49) 0-180-530 Email cnjwge tevm2 Deutsch (a49) 0-180-530 English (a49) 0-180-532 Fran (a49) 0-180-532 Italiano (a49) 0-180-534
National Semiconductor Hong Kong 13th Floor Straight Block Ocean Centre Canton Tsimshatsui Kowloon Hong Kong (852) 2737-1600 (852) 2736-9960
National Semiconductor Japan 81-043-299-2309 81-043-299-2408
National does assume responsibility circuitry described circuit patent licenses implied National reserves right time without notice change said circuitry specifications
Other recent searches
ZQF100 - ZQF100 ZQF100 Datasheet
SP835D20 - SP835D20 SP835D20 Datasheet
NTE7074 - NTE7074 NTE7074 Datasheet
MPC184 - MPC184 MPC184 Datasheet
HRW0503A - HRW0503A HRW0503A Datasheet
AN2201 - AN2201 AN2201 Datasheet
74VCX00 - 74VCX00 74VCX00 Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
