TA8428K Toshiba, TA8428K Datasheet
TA8428K
Specifications of TA8428K
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TA8428K Summary of contents
Page 1
... Ensure also that the ambient temperature and relative humidity are maintained at reasonable levels. Terminals which are sensitive to electrostatic discharge: No. 1 and 2 (TA8428K）, No. 8 and 9 (TA8428FG) The IC should be installed correctly. Otherwise, the IC or peripheral parts and devices may be degraded or permanently damaged ...
Page 2
... IN2 (PNP type low active comparator inputs) Connection pin for a DC motor, which can sink and source currents 1.5 A (TA8428K) or 0.8 A (TA8428FG). Two free-wheeling diodes are internally connected to this pin; one is between this pin and GND and the other is between this pin and V GND terminal Connection pin for a DC motor ...
Page 3
... Temperature sensing is performed by monitoring the V compared to the internal reference voltage, the TSD circuit sends a signal to the control logic to turn off the output transistors. Otherwise, the control logic is controlled by the IN1 and IN2 inputs. voltage at an on-chip diode. When TA8428K/FG is low F 2010-02-23 ...
Page 4
... Basic Operation When output sink and source currents (TA8428K: at pins 3 and 5; TA8428FG: at pins 15 and 16) are equal to or lower than the overcurrent threshold, output signals are controlled by input signals. However, when any of these currents exceed the threshold, outputs are turned on and off periodically as shown in Figure 1. ...
Page 5
... INTERNAL CIRCUIT 5 TA8428K/FG TA8428K TA8428FG 2010-02-23 ...
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... 1 0 ― ― ― pLH t 2 ― pHL 6 TA8428K/FG RATING UNIT 1.5 A 2.4 (Note 1) 0.8 1.25 (Note 2) 10.0 (Note 3) W 1.9 (Note 4) 2.5 (Note 5) − °C −55 to 150 °C MIN TYP. MAX ― ― ― ― ― 0.8 2.0 ― ― ...
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... INPUT/OUTPUT FUNCTION INPUT IN1 IN2 TEST CIRCUIT CC1 CC2 CC3 TEST CIRCUIT pLH pHL TEST CIRCUIT 3 V sat OUTPUT OUTPUT MODE OUTA OUT Brake L H CCW (CW (CCW) OFF (high impedance) Stop TA8428K, FG TA8428K, FG TA8428K TA8428K/FG . TA8428K TA8428FG 2010-02-23 ...
Page 8
... TEST CIRCUIT TEST CIRCUIT TA8428K, FG TA8428K TA8428K/FG TA8428K TA8428FG 2010-02-23 ...
Page 9
... TA8428FG TA8428FG 9 TA8428K/FG 2010-02-23 ...
Page 10
... APPLICATION CIRCUIT Note 1: Recommend to take approximately 100 μs of input dead time for reliable operations. Note 2: In case of mounted on radiators, do not use silicon rubber. (TA8428K) Note 3: Connect and use 1 pin and 3 pin surely. (TA8428FG) Note 4: When V is turned on, the IN1 and IN2 pins must be set low. These pins can be switched only after V CC reaches the specified voltage ...
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... PACKAGE DIMENSIONS HSIP7−P−2.54 Weight : 1.88 g (Typ.) 11 TA8428K/FG Unit : mm 2010-02-23 ...
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... PACKAGE DIMENSIONS HSOP20−P−450−1.00 Weight : 0.79 g (Typ.) 12 TA8428K/FG Unit : mm 2010-02-23 ...
Page 13
... Otherwise, the current or power consumption may exceed the absolute maximum rating, and exceeding the rating(s) may cause the device breakdown, damage or deterioration, and may result injury by explosion or combustion. In addition, do not use any device that is applied the current with inserting in the wrong orientation or incorrectly even just one time. 13 TA8428K/FG 2010-02-23 ...
Page 14
... If the current sink capability of the power supply is small, the device’s motor power supply and output pins might be exposed to conditions beyond maximum ratings. To avoid this problem, take the effect of back-EMF into consideration in system design. 14 TA8428K/ 2010-02-23 ...
Page 15
... Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 15 TA8428K/FG 2010-02-23 ...