Features: * Low Output-Saturation Voltage
* Source Outputs to 50 V
* Output Current to -250 mA
* To 3.3 MHz Data-lnput Rate
* Low-Power CMOS Logic & LatchesPinout
SpecificationsOutput Voltage, VOUT . . . . . . . . . . . . . . 50 V
Logic Supply Voltage Range,
VDD . . . . . . . . . . . .... . . . . . . 4.5 V to 12 V
Driver Supply Voltage Range,
VBB . . . . . . . . . . . .... . . . . . . 5.0 V to 50 V
Input Voltage Range,
VIN . . . . . . . . . . ..... -0.3 V to VDD + 0.3 V
Continuous Output Current,
IOUT. . . . . . . . . . .... . . . . . . . . . . -250 mA
Allowable Package Power Dissipation,
PD . . . . . . . . . . . . . ..... . . . . . . See Graph
Operating Temperature Range,
TA . . . . . . . . . . . . . .... .. . . -20 to +85
Storage Temperature Range,
TS . . . . . . . . . . . . . . ..... . -55 to +150DescriptionThe UCN5895A, UCN5895EP, and A5895SLW BiMOS II serialinput, latched source drivers are designed for applications emphasizing low output saturation voltages and currents to -250 mA per output. These smart high-side octal, driver ICs merge an 8-bit CMOS shift register, associated CMOS latches, and CMOS control logic (strobe and output enable) with medium current emitter-follower (sourcing) outputs. Typical applications of UCN5895A, UCN5895EP, and A5895SLW include incandescent or LED displays both directly driven and multiplexed), non-impact (i.e., thermal) printers, relays, and solenoids.
UCN5895A, UCN5895EP, and A5895SLW is suitable for high-side applications to -250 mA per channel. The maximum supply voltage is 50 V and a minimum output sustaining voltage rating of 35 V for inductive load applications. Under normal operating conditions, the UCN5895A and UCN5895EP are capable of providing -120 mA (8 outputs continuous and simultaneous) at +65°C with a logic supply of 5 V. Similar devices, with higher output current ratings, are the UCN5890A and UCN5891A.
BiMOS II UCN5895A, UCN5895EP, and A5895SLW can operate at greatly improved data-input rates. With a 5 V supply, they will typically operate at better than 5 MHz. At 12 V, significantly higher speeds are obtained.
The CMOS inputs of UCN5895A, UCN5895EP, and A5895SLW provide for minimum loading and are compatible with standard CMOS, PMOS, and NMOS circuits. TTL or DTL circuits may require the use of appropriate pull-up resistors to ensure a proper input-logic high. A CMOS serial data output of UCN5895A, UCN5895EP, and A5895SLW allows cascading these devices in multiple drive-line applications required by many dot matrix, alphanumeric, and bar graph displays.
These UCN5895A, UCN5895EP, and A5895SLW are rated for continuous operation over the temperature range of -20°C to +85°C. Because of limitations on package power dissipation, the simultaneous operation of all output drivers may require a reduction in duty cycle. The UCN5895A is supplied in a standard 16-pin dual in-line plastic package with a copper lead frame for increased allowable package power dissipation. The UCN5895EP is supplied in a 20-lead plastic leaded chip carrier for minimum area, surface-mount applications. The A5895SLW is supplied in a 16-lead wide-body plastic SOIC.
5895 Data Sheet
