MIC4807 80V 8-Channel Addressable Low-Side Driver - Micrel - #8

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MIC4807 Micrel 7-10 October 1998 Pin Description Pin No. Pin Name Functional Description 5 Ground Electrical ground to chip substrate. 12 VDD Positive logic supply voltage (10V-15V). 1, 2, 8, HVOUT0 through HVOUT7 These are the high voltage (HV) open outputs, each of which is capable of 9,10, 11, sinking 100mA when switched on, and standing off 80V when switched off. 17,18 In addition, each output channel is equipped with an analog current limiter to protect it from shorts to the positive high voltage supply. When an output is shorted (up to 80V), a maximum of 225mA (200mA nominal) will flow through it to ground. 13, 14, 15 CIN, BIN, &AIN When these inputs are combined together they form the BCD address used to select the desired output. Each input is TTL compatible with an internal pull-up current source of 50mA. 6 CS When CS is at logic "0" the device is actively addressed, and when CS is at logic "1" the decoded address and input Data are inhibited, making the part unaddressable. CS is TTL compatible with an internal pull-down current sink of 75mA. 7 Clear Clear resets all the outputs to the off state when pulled to logic "0", and is TTL compatible with an internal pull-down current sink of 75mA. 16 Data-in Data-in determines the state of the output being addressed. When Datain is at logic "0" the addressed output is turned off, and when Data-in is at logic "1" the addressed output is turned on. Data-in is TTL compatible with an internal pull-up current source of 50mA. 4 OE OE allows the bank of eight outputs to be duty cycled together. When OE is at logic "1" the outputs are enabled to follow their respective latches, and when OE is at logic "0" all the outputs are turned off. OE is TTL Compatible with a pull-down current sink of 75mA.