OPERATING SUPPLY VOLTAGE TOTAL CURRENT SATURATION VOLTAGE OVERTEMPERAT

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OPERATING SUPPLY VOLTAGE TOTAL CURRENT SATURATION VOLTAGE OVERTEMPERAT

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DUAL FULL-BRIDGE DRIVER
OPERATING SUPPLY VOLTAGE TOTAL CURRENT SATURATION VOLTAGE OVERTEMPERATURE PROTECTION LOGICAL INPUT VOLTAGE (HIGH NOISE IMMUNITY)
Multiwatt15 werSO20
DESCRIPTION L298 integrated monolithic circuit 15lead Multiwatt PowerSO20 packages. high voltage, high current dual full-bridge driver designed accept standard logic levels drive inductive loads such relays, solenoids, stepping motors. enable inputs provided enable disable device independentlyofthe input signals. emitters lower transistors each bridge connected together corresponding external terminal used conBLOCK DIAGRAM
ORDERING NUMBERS L298N (Multiwatt Vert.) L298HN (Multiwatt Horiz.) L298P (PowerSO
nection external sensing resistor. additional supply input provided that logic works lower voltage.
1995
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ABSOLUTE MAXIMUM RATINGS
Symb VI,Ven Power Supply Logic Supply Voltage Input Enable Voltage Peak Output Current (each Channel) Repetitive 100µs) -Repetitive (80% -20% off; 10ms) Operation Sensing Voltage Total Power Dissipation (Tcase 75°C) Storage Junction Temperature Parameter Value -0.3 Unit
Vsens Ptot Tstg,
CONNECTIONS (top view)
CURRENT SENSING OUTPUT OUTPUT INPUT ENABLE INPUT LOGIC SUPPLY VOLTAGE INPUT ENABLE INPUT SUPPLY VOLTAGE OUTPUT OUTPUT CURRENT SENSING
Multiwatt15
CONNECTED
D95IN240
Sense N.C. Input Enable Input
D95IN239
Sense N.C. Input Enable Input
PowerSO20
THERMAL DATA
Symb j-case j-amb Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient Max. Max. erSO20 Multiw att15 Unit °C/W °C/W
Mounted aluminum substrate
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FUNCTIONS (refer block diagram)
1;15 werSO 2;19 Name Sense Sense nctio Between this ground connected sense resistor control current load. Outputs Bridge current that flows through load connected between these pins monitored Supply Voltage Power Output Stages. non-inductive 100nF capacitor must connected between this ground. Compatible Inputs Bridge Compatible Enable Input: state disables bridge (enable and/or bridge (enable Ground. Supply Voltage Logic Blocks. A100nF capacitor must connected between this ground. Compatible Inputs Bridge Outputs Bridge current that flows through load connected between these pins monitored Connected
6;11
8;14 1,10,11,20 13;15 16;17 3;18
Input Input Enable Enable Input Input N.C.
ELECTRICAL CHARACTERISTICS 42V; 25°C; unless otherwise specified)
Symbol Parameter Supply Voltage (pin Logic Supply Voltage (pin Quiescent Supply Current (pin Quiescent Current from (pin Input Voltage (pins Input High Voltage (pins Voltage Input Current (pins High Voltage Input Current (pins Enable Voltage (pins Enable High Voltage (pins Voltage Enable Current (pins High Voltage Enable Current (pins -0.6V 1.35 -0.6V -0.3 -0.3 ditio Operative Condition Min. +2.5 Max. Unit
VCEsat Source Saturation Voltage VCEsat Sink Saturation Voltage VCEsat Vsens Total Drop Sensing Voltage (pins
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ELECTRICAL CHARACTERISTICS (continued)
Symbol (Vi) (Vi) (Vi) (Vi) (Vi) (Vi) (Vi) (Vi) (Vi) (Ven) (Ven) (Ven) (Ven) (Ven) (Ven) (Ven) (Ven) (Ven) Parameter 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 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 ditio (2); (2); (2); (2); (3); (3); (3); (3); (2); (2); (2); (2); (3); (3); (3); (3); Min. 0.25 0.35 0.25 Max. Unit
1)Sensing voltage µsec; steady state Vsens fig. fig. load must pure resistor. connected GND.
Figure Typical Saturation Voltage Output Current.
Figure Switching Times Test Circuits.
Note INPUT Switching, ENABLE Switching,
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Figure Source Current Delay Times Input Enable Switching.
Figure Switching Times Test Circuits.
Note INPUT Switching, ENABLE Switching,
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Figure Sink Current Delay Times Input Enable Switching.
Figure Bidirectional Motor Control.
Functio Turn Right Turn Left Fast Motor Stop Free Running Motor Stop
Don't care
High
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Figure higher currents, outputs paralleled. Take care parallel channel with channel channel with channel
APPLICATION INFORMATION (Refer block diagram) Each input must connected source 1.1. POWER OUTPUT STAGE driving signals means very short path. TheL298integratestwo power outputstages(A Turn-On Turn-Off Before Turn-ON SupThe power output stage bridge configuration Voltageand before Turn OFF, Enable inand outputs drive inductive load comput must driven state. differenzial mode, dependingon state inputs. current that flows through load APPLICATIONS comes from bridge sense output shows bidirectional motor control Scheexternal resistor (RSA RSB.) allows detect intensity this current. matic Diagram which only bridge needed. external bridge diodes made 1.2. INPUT STAGE four fast recovery elements (trr nsec) that Each bridge driven means four gates inmust chosen possible which EnB. worst case load current. inputs bridge state when input sense output voltage used control high state input inhibits bridge. current amplitude chopping inputs, proAll inputs compatible. vide overcurrent protection switching enable input. SUGGESTIONS brake function (Fast motor stop) requires that inductive capacitor, usually must Absolute Maximum Rating Amps must foreseen between both Vss, ground, never overcome. near possible pin. When large capacitor power supply from When repetitive peak current needed from second smaller must foreseen near load higher than Amps, paralleled configuraL298. tion chosen (See Fig.7). sense resistor, wire wound type, must external bridge diodes required when inbe grounded near negative pole that must ductive loads driven when inputs near I.C. chopped; Shottky diodes would preferred.
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This solution drive until Amps operation until Amps repetitive peak current. shown driving phase bipolar stepper motor needed signals drive inputs L298 generated, this example, from L297. shows example P.C.B. designed application Figure Phase Bipolar Stepper Motor Circuit. This circuit drives bipolar stepper motors with winding currents diodes fast types. shows second phase bipolar stepper motor control circuit where current controlled I.C. L6506.
Fast diodes
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Figure Suggested Printed Circuit Board Layout Circuit fig. (1:1 scale).
Figure Phase Bipolar Stepper Motor Control Circuit Using Current Controller L6506.
Rsense depend from load current
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MULTIWATT15 (VERTICAL) PACKAGE MECHANICAL DATA
DIM. MIN. Dia1 22.1 17.65 17.25 10.3 2.65 3.65 5.08 17.5 10.7 0.49 0.66 1.14 17.57 19.6 20.2 22.6 22.5 18.1 17.75 10.9 3.85 0.870 0.866 0.695 0.679 0.406 0.104 0.165 0.177 0.075 0.075 0.144 0.169 0.200 0.689 0.421 1.27 17.78 0.55 0.75 17.91 0.019 0.026 0.045 0.692 0.772 0.795 0.890 0.886 0.713 0.699 0.429 0.114 0.181 0.209 0.102 0.102 0.152 0.050 0.700 TYP. MAX. 2.65 0.039 0.022 0.030 0.055 0.705 MIN. inch TYP. MAX. 0.197 0.104 0.063
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PowerSO20 PACKAGE MECHANICAL DATA
DIM. MIN. 10.0 0.80 10.90 0.40 0.23 15.80 13.90 1.27 11.43 11.10 2.90 0.10 1.10 1.10 (max.) 0.3937 0.0314 (max.) 0.0433 0.4291 0.10 TYP. MAX. 3.60 0.30 3.30 0.10 0.53 0.32 16.00 14.50 0.0157 0.009 0.6220 0.5472 0.050 0.450 0.437 0.1141 0.0039 0.0039 MIN. inch TYP. MAX. 0.1417 0.0118 0.1299 0.0039 0.0209 0.0126 0.6299 0.570
include mold flash protrusions Mold flash protrusions shall exceed 0.15mm (0.006")
DETAIL
DETAIL
lead
DETAIL
DETAIL
Gage Plan 0.35
slug
TING PLANE
(COPLANARITY)
PSO20MEC
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Information furnished believed accurate reliable. However, SGS-THOMSON Microelectronics assumes responsibility consequences such information infringement patents other rights third parties which result from use. license granted implication otherwise under patent patent rights SGS-THOMSON Microelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. SGS-THOMSON Microelectronics products authorized critical components life support devices systems without express written approval SGS-THOMSON Microelectronics. 1995 SGS-THOMSON Microelectronics Rights Reserved SGS-THOMSON Microelectronics GROUP COMPANIES Australia Brazil France Germany Hong Kong Italy Japan Korea Malaysia Malta Morocco Netherlands Singapore Spain Sweden Switzerland Taiwan Thaliand United Kingdom U.S.A.
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OPERATING SUPPLY VOLTAGE TOTAL CURRENT SATURATION VOLTAGE OVERTEMPERAT

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