A2557SEB-T Allegro Microsystems Inc, A2557SEB-T Datasheet
A2557SEB-T
Specifications of A2557SEB-T
Related parts for A2557SEB-T
A2557SEB-T Summary of contents
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Features and Benefits ▪ 300 mA output current per channel ▪ Independent overcurrent protection and thermal limiting for each driver ▪ Output voltage ▪ Output SOA protection ▪ Fault-detection circuitry for open or shorted load ▪ Low ...
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... A2557KLBTR-T Yes A2557SB-T* Yes A2557SEBTR-T* Yes A2557SLBTR-T* Yes *Variant is in production but has been determined to be LAST TIME BUY. This classification indicates that the variant is obsolete and notice has been given. Sale of the variant is currently restricted to existing customer applications. The variant should not be purchased for new design applications because of obsolescence in the near future ...
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A2557 Absolute Maximum Ratings Characteristic Logic Supply Voltage Input Voltage Output Voltage Overcurrent Protected Output Voltage Output Current FAULT Output Voltage Package Power Dissipation Operating Ambient Temperature Maximum Junction Temperature Storage Temperature with Fault Detection and Sleep Mode Symbol V ...
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A2557 GROUND GROUND with Fault Detection and Sleep Mode Pin-out Diagrams EB (PLCC) Package (DIP) and LB (SOIC) Packages IN OUT ...
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A2557 ELECTRICAL CHARACTERISTICS over operating temperature range, V Characteristic Symbol Output Leakage Current* Output Sustaining Voltage Output Saturation Voltage Over-Current Limit Input Voltage Input Current Fault Output Leakage Current Fault Output Current Fault Output Saturation Voltage V Clamp Diode Forward ...
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... Dwg. GP-064 400 300 Dwg. GP-066 Protected Quad Driver 10 20 OUTPUT VOLTAGE IN VOLTS IN SWITCHING (FROM SLEEP) ENABLE SWITCHING IN SWITCHING (AWAKE) 0 100 200 OUTPUT CURRENT IN MILLIAMPERES Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Dwg. GP-065 T ...
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... V. This helps to improve SOA by immediately reducing the OUT FAULT N peak power pulse into a shorted load at high logic low at the ENABLE input causes all outputs to be switched off regardless of the state of the IN terminals. In addi tion, the device is put into a low quiescent current ‘sleep’ mode reducing the inputs go high, the circuit will ‘ ...
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A2557 CIRCUIT DESCRIPTION AND APPLICATION (continued) NORMAL LAMP IN-RUSH CURRENT THERMAL GRADIENT SENSING CURRENT LIMIT I TRIP 0 TIME Inductive load driver Bifi lar (unipolar) stepper motors (and other inductive loads) can be driven directly. The internal diodes prevent damage ...
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A2557 CIRCUIT DESCRIPTION AND APPLICATION (continued) IN FAULT (SHORTED LOAD) FAULT (OPEN LOAD) Under some conditions it is possible to get spurious glitches on the FAULT output at load turn-on and turn-off transitions: • Light load turn-off. Under light loading ...
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A2557 19.05±0. 1.27 MIN +0.25 1.52 –0.38 0.46 ±0.12 with Fault Detection and Sleep Mode B Package, 16-pin DIP with internally fused pins 4, 5, 12, and 13 and external thermal tabs +0.76 +0.38 6.35 10.92 ...
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A2557 with internally fused pins 5 through 11 and 19 through 25 12.45±0.13 11.51±0.08 0.74 ±0.08 28X 0.10 0.43 ±0.10 A Terminal #1 mark area with Fault Detection and Sleep Mode EB Package, 28-pin PLCC 12.45±0.13 11.51±0. ...
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A2557 with internally fused pins 4 and 5, and 12 and 13 10.30±0. 16X 0.10 C 1.27 0.41 ±0.10 For Reference Only Pins 4 and 5, and 12 and 13 internally fused Dimensions in millimeters (reference ...