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TD62445FN
LOW .SATURATION .TYPE SINK DRIVER WITH 4 .CIRCUIT OVER .CURRENT DETECTION FUNCTION
TD62445FN TOSHIBA BIPOLAR DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TD62445FN LOW−SATURATION−TYPE SINK DRIVER WITH 4−CIRCUIT OVER−CURRENT DETECTION FUNCTION
The TD62445FN is a sink driver with over−current detector
circuits. Each of four circuits can setting the limit current.
Using an internal comparator, the TD62445FN detects
over−current by comparing the current output through the
external resistors as voltage. Over current detection is detected
by the ERR terminal which is an open collector, comes on.
Construct a system so that the input signal turns off immediately
the ERR pin comes on.
FEATURES Includes current limiter circuits:
By connecting external resistors, each bit can be set to any
limit current value. Includes an error detection signal filter pin:
Connecting any capacitor between the LP pin and the GND filters the internal comparator detection signal and
outputs this to the ERR pin. Over−current monitor detection output:
Includes an ERR pin output to warn when current exceeds the limit. Construct a system so that the input signal
turns off immediately the ERR pin comes on (open collector). Common input pin (CO−IN (pin 4)) :
Using this pin, the four over−current detector circuits can be forcibly turned off together. Low−saturation−type output (open collector):
The voltage drop between the collector and emitter is VOL1 = 0.4 V (max) @ IO = 100 mA. Supply voltage : VCC = 4.5 to 5.5 Input is TTL compatible. Ultra−compact package : SSOP 18 pins (0.65mm pitch) Output rating : VCEO = 30 V, IO = 150 mA / ch Packing : Embossed taping only
PIN CONNECTION (TOP VIEW) Weight: 0.08 g (Typ.)
