CS452 CHERRY [Cherry Semiconductor Corporation], CS452 Datasheet
CS452
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CS452 Summary of contents
Page 1
... Its typical function is to sup- ply full battery voltage to fuel injec- tor(s) for rapid current rise, in order to produce positive injector open- ing. When load current reaches a preset level (2.4A for CS452, or 4.4A for CS453), the injector driver reduces Absolute Maximum Ratings Power Supply Voltage (V ) .........................................................................24V CC V ...
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... Electrical Characteristics: CHARACTERISTIC Output Peak Current ( Output Sustaining Current (I ) sus V @ 1mA (BR)CEO(sus) Output Voltage in Saturated Mode CS452 @ 1.5A CS453 @ 3.0A Internal Regulated Voltage Input ÒonÓ Threshold Voltage Input ÒoffÓ Threshold Voltage Input ÒonÓ Current @ CONTROL ÒonÓ Threshold Voltage CONTROL Current CONTROL = 0 ...
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... CS453 driver. The smaller type, popular worldwide, have an inductance of 4.0mH and an impedance of 2.4½ and needs about a 2.0A pulse for good results, which can be met with the CS452. Some designs are planned which employ two of the smaller types in parallel. The induc- tance of the injectors are much larger at low current, decreasing due to armature movement and core saturation to the values above at rated current ...
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... When this condition occurs, the control lead (CONTROL) can be used to shut off the out- put stage in order to protect the CS452/453. As long as CONTROL is in the high state (>1.5 volts, typ.), the output will remain off. One method of sensing the supply voltage ...
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... Ordering Information Part Number Description CS452GT5 5 Lead TO-220 Straight CS452GTVA5 5 Lead TO-220 Vertical CS452GTHA5 5 Lead TO-220 Horizontal CS453GT5 5 Lead TO-220 Straight CS453GTVA5 5 Lead TO-220 Vertical CS453GTHA5 5 Lead TO-220 Horizontal Rev. 12/18/97 Package Specification Thermal Data R QJC ...