SP1404BW Datasheet | GEC Plesset

DESCRIPTION (Fig.2) OUTPUT 5 INPUT 5 The SP1404 operates as a power amplifier interfacing from a voltage-level sensitive input to a high-current output switch. 7 0V ELECTRONIC 0V EXCHANGE 8 The input threshold is TTL-patible, with a low input current DP14 requirement enabling one standard TTL output to drive many interfaces. The low input current requirement also makes it possible to use series current-limiting resistors to protect the Figure 1: Pin connections (viewed from underside) SP1404 inputs. Each element of the device performs as inverting function, i.e. a low voltage level on the input causes a high current in the BIAS CHAIN output. If the input is left open-circuit, the output will be off and FOR ALL 5 ELEMENTS the output current will be zero. +VCC The isolation of the integrated circuit is biased to the more negative of the two earth points by diodes D1 and D2 so that .. differences of up to (VCC- 1) volts can be tolerated between the ‘noisy’ exchange earth and the ‘quiet’ electronic earth. ABSOLUTE MAXIMUM RATINGS Storage temperature -55°C to +175°C Chip operating temperature +150°C +85 °C Ambient temperature (IOUT = 50m A) Load current 80m A Voltage between output and ‘noisy earth’ -65V VCC to output voltage 75V 7V VCC to electronic earth Input voltage VCC + 1V INPUT 0V EXCHANGE D2 SUBSTRATE OUTPUT 0V ELECTRONIC D1 SUBSTRATE ELECTRICAL CHARACTERISTICS Test conditions (unless otherwise stated): Temperature range = 0°C to +70°C, VCC = +5V ± 0.5V Value Characteristic Min. Input current Output voltage Output current (Off state) Output current (On state) VCC supply current Total power dissipation Typ. -20 1.5 100 50 80 30 450 Figure 2: Circuit diagram of one element Units Max. µA µA V µA m A m A m W Conditions VIN = 0V VIN = VCC VIN = 0.8V, I OUT = 50m A VIN = 2V, VOUT = -60V VIN = 0.8V VCC = 5V, all inputs low VCC = 5V, all inputs low all outputs IOUT = 50m A For more information about all Zarlink products visit our Web Site at .zarlink. Informatio...