MIC59P50 8-Bit Parallel-Input Protected Latched Driver General Description Features The MIC59P50 parallel-input latched driver is a high- • 4.4MHz minimum data input rate voltage (80V), high-current (500mA) integrated circuit • High-voltage, high-current outputs comprised of eight CMOS data latches, a bipolar • Per-output overcurrent shutdown (500mA typical) Darlington transistor driver for each latch, and CMOS control circuitry for the common CLEAR, STROBE, and • Undervoltage lockout OUTPUT ENABLE functions. Similar to the MIC5801, • Output fault flag additional protection circuitry supplied on this device • Output transient protection diodes includes thermal shutdown, undervoltage lockout (UVLO), • CMOS, PMOS, NMOS, and TTL-compatible inputs and overcurrent shutdown. • Internal pull-down resistors The bipolar/MOS combination provides an extremely low- • Low-power CMOS latches power latch with maximum interface flexibility. The • Single or split supply operation MIC59P50 has open-collector outputs capable of sinking 500mA and integral diodes for inductive load transient suppression with a minimum output breakdown voltage rating of 80V above V (50V sustaining). The drivers can EE be operated with a split supply, where the negative supply is down to –20V and may be paralleled for higher load current capability. With a 5V logic supply, the MIC59P50 will typically operate at better than 5MHz. With a 12V logic supply, significantly higher speeds are obtained. The CMOS inputs are compatible with standard CMOS, PMOS, and NMOS circuits. TTL circuits may require pull-up resistors. Each of these eight outputs has an independent overcurrent shutdown at 500mA. Upon current shutdown, the affected channel will turn OFF and the flag will go low until V is cycled or the /ENABLE/RESET pin is pulsed DD high. Current pulses less than 2µs will not activate overcurrent shutdown. Temperatures above +165°C will shut down the device and activate the open-collector FLAG output at pin 1. The UVLO circuit disables the outputs at low V ; hysteresis of 0.5V is provided. DD Datasheets and support documentation are available on Micrel’s website at: www.micrel.com. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com July 29, 2015 Revision 2.0

Micrel, Inc. MIC59P50 Functional Diagram July 29, 2015 2 Revision 2.0

Micrel, Inc. MIC59P50 Ordering Information Part Number Temperature Range Package Pb-Free MIC59P50YN –40°C to +85°C 24-Pin Plastic DIP(1) √ MIC59P50YV –40°C to +85°C 28-Pin PLCC √ MIC59P50YWM –40°C to +85°C 24-Pin Wide SOIC √ Note: 1. 300mm “Skinny DIP” Pin Configuration 24-Pin PDIP (N) 28-Pin PLCC (V) 24-Pin Wide SOIC (WM) (Top View) (Top View) Pin Description Pin Number Pin Number Pin Name Pin Name PDIP & SOIC PLCC Error flag. Open-collector output is low upon overcurrent fault or 1 2 /FLAG overtemperature fault. /OE/RESET must be pulled high to reset the flag and fault condition. 2 3 CLEAR Sets all latches to OFF (open). 3 4 STROBE Input strobe pin. Loads output latches when high. 4-11 5-12 INn Parallel inputs, 1 through 8. 12 15 VEE Output ground (substrate). Most negative voltage in the system connects here. 13 17 COMMON Transient suppression diodes cathode common pin. 14-21 18-25 OUTn Parallel outputs, 8 through 1. 22 26 VDD Logic positive supply voltage. Output enable reset. When low, outputs are active. When high, outputs are 23 27 /OE/RESET inactive and the flag and outputs are reset from a fault condition. An undervoltage condition emulates a high /OE input. 24 28 VSS Logic reference (ground) pin. July 29, 2015 3 Revision 2.0

Micrel, Inc. MIC59P50 Absolute Maximum Ratings(2) Operating Ratings(3) Input Voltage (VCE) ....................................................... +80V Input Voltage (VIN) .................................. –0.3V to VDD+0.3V Supply Voltage Operating Temperature (TA)........................ –40°C to +85°C (VDD) ......................................................................... 15V Junction Temperature (TJ) ....................................... +150°C (VDD – VEE) ............................................................... 25V Power Dissipation (PD) Continuous Collector Current (I ) .............................. 500mA Plastic DIP (N) ....................................................... 2.4W C Protected Current(4) ....................................................... 1.5A Derate above TA = +25°C ............................ 24mW/°C Lead Temperature (soldering, 10s) ............................ 260°C PLCC (V) ............................................................... 1.6W Storage Temperature (Ts) ......................... –65°C to +150°C Derate above TA = +25°C ............................ 16mW/°C ESD Rating(5) ................................................. ESD Sensitive Wide SOIC (WM) ................................................... 1.4W Derate above T = +25°C ............................ 14mW/°C A (6) Electrical Characteristics VDD = 5V; TA = 25°C, unless noted. Symbol Parameter Condition Min. Typ. Max. Units VCE = 80V, TA = +25°C 50 µA ICEX Output Leakage Current VCE = 80V, TA = +70°C 100 µA VCE(SAT) Collector-Emitter IC = 100mA 0.9 1.1 V IC = 200mA 1.1 1.3 V Saturation Voltage IC = 350mA 1.3 1.6 V VIN(0) 1.0 V VDD = 12V 10.5 V Input Voltage VIN(1) VDD = 10V 8.5 V VDD = 5V, Note 7 3.5 V VDD = 12V 50 200 kΩ RIN Input Resistance VDD = 10V 50 300 kΩ VDD = 5V 50 600 kΩ IOL /Flag Output Current VOL = 0.4V 15 mA IOH /Flag Output Leakage VOH = 12V 50 nA Notes: 2. Exceeding the absolute maximum ratings may damage the device. 3. The device is not guaranteed to function outside its operating ratings. 4. Each channel VEE connection must be designed to minimize inductance and resistance. 5. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5kΩ in series with 100pF. 6. Specification for packaged product only. 7. Operation of these devices with standard TTL or DTL may require the use of appropriate pull-up resistors to ensure a minimum logic “1”. July 29, 2015 4 Revision 2.0

Micrel, Inc. MIC59P50 (6) Electrical Characteristics (Continued) VDD = 5V; TA = 25°C, unless noted. Symbol Parameter Condition Min. Typ. Max. Units VDD = 12V, outputs open 3.3 4.5 mA IDD(ON)1 Supply Current VDD = 10V, outputs open 3.1 4.5 mA One Output Active VDD = 5V, outputs open 2.4 3.6 mA VDD = 12V, outputs open 6.4 10.0 mA IDD(ON) All Supply Current VDD = 10V, outputs open 6.0 9.0 mA All Outputs Active VDD = 5V, outputs open 4.7 7.5 mA VDD = 12V, outputs open, inputs = 0V 3.0 4.5 mA IDD(OFF) Supply Current OFF VDD = 5V, outputs open, inputs = 0V 2.2 3.6 mA VR = 80V, TA = +25°C 50 µA IR Clamp Diode Leakage Current VR = 80V, TA = +70°C 100 µA ILIM Overcurrent Threshold Each output 500 mA VSU Start-up Voltage Note 8 3.5 4.0 4.5 V VDD MIN Minimum Operating VDD 3.0 3.5 4.0 V VF Clamp Diode Forward Voltage IF = 350mA 1.7 2.0 V Thermal Shutdown 165 °C Thermal Shutdown Hysteresis 10 Notes: 8. Undervoltage lockout is guaranteed to release device at no more than 4.5V and disable the device at no less than 3.0V input logic voltage. Truth Table OUTn INn Strobe Clear Output Enable t-1 t 0 1 0 0 X OFF 1 1 0 0 X ON X X 1 X X OFF X X X 1 X OFF X 0 0 0 ON ON X 0 0 0 OFF OFF Note: X = Irrelevant t-1 = Previous output state t = Present output state Information present at an input is transferred to its latch when the STROBE is high. A high CLEAR input will set all latches to the output OFF condition regardless of the data or STROBE input levels. A high OUTPUT ENABLE will set all outputs to the OFF condition, regardless of any other input conditions. When the OUTPUT ENABLE is low, the outputs depend on the state of their respective latches. If current shutdown is activated, the OUTPUT ENABLE must be pulsed high to restore operation and reset the FLAG. Overtemperature faults are not latched and require no reset pulse. July 29, 2015 5 Revision 2.0

Micrel, Inc. MIC59P50 Timing Diagram Timing Conditions T = +25°C; Logic levels are V and V ; V = 5V. A DD SS DD A. Minimum data active time before strobe enabled (data set-up time) 50ns B. Minimum data active time after strobe disabled (data hold time) 50ns C. Minimum strobe pulse width 125ns D. Typical time between strobe activation and output on-to-off transition 500ns E. Typical time between strobe activation and output off-to-on transition 500ns F. Minimum clear pulse width 300ns G. Minimum data pulse width 225ns July 29, 2015 6 Revision 2.0

Micrel, Inc. MIC59P50 Typical Characteristics July 29, 2015 7 Revision 2.0

Micrel, Inc. MIC59P50 Typical Application MIC59P50 Protected Relay Driver July 29, 2015 8 Revision 2.0

Micrel, Inc. MIC59P50 (9) Package Information and Recommended Land Pattern 24-Pin PDIP (N) Note: 9. Package information is correct as of the publication date. For updates and most current information, go to www.micrel.com. July 29, 2015 9 Revision 2.0

Micrel, Inc. MIC59P50 (9) Package Information and Recommended Land Pattern 28-Pin PLCC (V) July 29, 2015 10 Revision 2.0

Micrel, Inc. MIC59P50 (9) Package Information and Recommended Land Pattern 24-Pin Wide SOIC (WM) July 29, 2015 11 Revision 2.0

Micrel, Inc. MIC59P50 MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com Micrel, Inc. is a leading global manufacturer of IC solutions for the worldwide high performance linear and power, LAN, and timing & communications markets. The Company’s products include advanced mixed-signal, analog & power semiconductors; high-performance communication, clock management, MEMs-based clock oscillators & crystal-less clock generators, Ethernet switches, and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA, with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe, and Asia. Additionally, the Company maintains an extensive network of distributors and reps worldwide. Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this datasheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 1998 Micrel, Incorporated. July 29, 2015 12 Revision 2.0