MIC5841/5842 8-Bit Serial-Input Latched Drivers General Description Using BiCMOS technology, the MIC5841/5842 integrated circuits were fabricated to be used in a wide variety of peripheral power driver applications. The devices each have an eight-bit CMOS shift register, CMOS control circuitry, eight CMOS data latches, and eight bipolar current-sink Darlington output drivers. These two devices differ only in maximum voltage ratings. The MIC5842 offers premium performance with a minimum output breakdown voltage rating of 80V (50V sustaining). The drivers can be operated with a split supply where the negative supply is down to -20V. The 500mA outputs, with integral transient-suppression diodes, are suitable for use with lamps, relays, solenoids and other inductive loads. These devices have improved speed characteristics. With a 5V logic supply, they will typically operate faster than 5 MHz. With a 12V supply, significantly higher speeds are obtained. The CMOS inputs are compatible with standard CMOS, PMOS, and NMOS logic levels. TTL or DTL circuits may require the use of appropriate pull-up resistors. By using the serial data output, the drivers can be cascaded for interface applications requiring additional drive lines. The MIC5840 family is available in DIP, PLCC, and SOIC packages. Because of limitations on package power dissipation, the simultaneous operation of all drivers at maximum rated current might require a reduction in duty cycle. A copper-alloy lead frame provides for maximum package power dissipation. Features * * * * * * * 3.3 MHz Minimum Data-Input Rate CMOS, PMOS, NMOS, TTL Compatible Internal Pull-Up/Pull-Down Resistors Low-Power CMOS Logic and Latches High-Voltage Current-Sink Outputs Output Transient-Protection Diodes Single or Split Supply Operation Ordering Information Part Number Standard Temperature Range Package Pb-Free MIC5841BN MIC5841YN -40C to +85C 18-Pin Plastic DIP MIC5841BV MIC5841YV -40C to +85C 20-Pin PLCC MIC5841BWM MIC5841YWM -40C to +85C 18-Pin Wide SOIC MIC5842BN MIC5842YN -40C to +85C 18-Pin Plastic DIP MIC5842BV MIC5842YV -40C to +85C 20-Pin PLCC MIC5842BWM MIC5842YWM -40C to +85C 18-Pin Wide SOIC Micrel Inc. * 2180 Fortune Drive * San Jose, CA 95131 * USA * tel +1 (408) 944-0800 * fax + 1 (408) 474-1000 * http://www.micrel.com May 2006 M9999-050506 (408) 955-1690 Micrel, Inc. MIC5841/42 Functional Diagram CLK 1 6 SERIAL DATA IN 3 8 - B IT S E R IA L - P A R A L L E L S H IFT R E GIS T E R 5 VS S 4 L A TC H E S 7 8 SERIAL DATA OUT VDD STROBE OUTPUT ENABLE (ACTIVE LOW) MOS Bipolar Sub 1 K May 2006 10 18 17 16 15 14 13 12 9 VE E 11 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 2 M9999-050506 (408) 955-1690 Micrel, Inc. MIC5841/42 Absolute Maximum Ratings(1,2,3) Emitter Supply Voltage, VEE ...................................-20V Input Voltage Range, VIN ............... -0.3V to VDD + 0.3V Continuous Output Current, IOUT .........................500mA Package Power Dissipation, PD(2) ........................1.82W Operating Temperature Range, TA .......-55C to +85C Storage Temperature Range, TS ........-65C to +150C At 25C Free-Air Temperature and VSS ................... 0V Output Voltage, VCE (MIC5841) ............................. 50V (MIC5842) .............................. 80V Output Voltage, VCE(SUS) (MIC5841)(1).................................. 35V (MIC5842) ........................ 50V Logic Supply Voltage, VDD ....................................... 15V VDD with Reference to VEE ..................................... 25V Electrical Characteristics At TA = 25C VDD = 5V, VSS = VEE = 0V (unless otherwise noted) Limits Characteristic Symbol Output Leakage Current ICEX Applicable Devices MIC5841 MIC5842 Collector-Emitter Saturation Voltage VCE(SAT) Collector-Emitter Saturation Voltage VCE(SUS)(5) Input Voltage VIN(0) VIN(1) Both MIC5841 MIC5842 Both Both Input Resistance RIN Both Supply Current IDD(ON) Both IDD(OFF) Both Clamp Diode Leakage Current IR Clamp Diode Forward Voltage VF May 2006 MIC5841 MIC5842 Both 3 Test Conditions VOUT = 50V VOUT = 50V, TA = +70C VOUT = 80V VOUT = 80V, TA = +70C IOUT = 100mA IOUT = 200mA IOUT = 350mA, VDD = 7.0V IOUT = 350mA, L = 2mH IOUT = 350mA, L = 2mH Min Max Unit 50 100 50 100 1.1 1.3 1.6 A V 35 50 0.8 VDD = 12V VDD = 10V VDD = 5.0V(4) VDD = 12V VDD = 10V VDD = 5.0V All Drivers ON, VDD = 12V All Drivers ON, VDD = 10V All Drivers ON, VDD = 5.0V All Drivers OFF, VDD = 12V All Drivers OFF, VDD = 10V All Drivers OFF, VDD = 5.0V VR = 50V VR = 80V IF = 350mA V 10.5 8.5 3.5 50 50 50 V k 16 14 8.0 2.9 2.5 1.6 50 50 2.0 1.6 A V M9999-050506 (408) 955-1690 Micrel, Inc. MIC5841/42 Electrical Characteristics At TA = -55C VDD = 5V, VSS = VEE = 0V (unless otherwise noted) Limits Characteristic Symbol Test Conditions Output Leakage Current Collector-Emitter Saturation Voltage ICEX VCE(SAT) VOUT = 80V IOUT = 100mA IOUT = 200mA IOUT = 350mA, VDD = 7.0V Input Voltage VIN(0) VIN(1) Input Resistance RIN Supply Current IDD(ON) IDD(OFF) VDD = 12V VDD = 5.0V VDD = 12V VDD = 10V VDD = 5.0V All Drivers ON, VDD = 12V All Drivers ON, VDD = 10V All Drivers ON, VDD = 5.0V All Drivers OFF, VDD = 12V All Drivers OFF, VDD = 5.0V Min Max Unit 50 1.3 1.5 1.8 0.8 A V 10.5 3.5 35 35 35 V k 16 14 10 3.5 2.0 mA Electrical Characteristics At TA = +125C VDD = 5V, VSS = VEE = 0V (unless otherwise noted) Limits Characteristic Symbol Test Conditions Output Leakage Current Collector-Emitter Saturation Voltage ICEX VCE(SAT) VOUT = 80V IOUT = 100mA IOUT = 200mA IOUT = 350mA, VDD = 7.0V Input Voltage VIN(0) VIN(1) Input Resistance RIN Supply Current IDD(ON) IDD(OFF) Clamp Diode Leakage Current IR VDD = 12V VDD = 5.0V VDD = 12V VDD = 10V VDD = 5.0V All Drivers ON, VDD = 12V All Drivers ON, VDD = 10V All Drivers ON, VDD = 5.0V All Drivers OFF, VDD = 12V All Drivers OFF, VDD = 5.0V MIC5841A VR = 50V MIC5842A VR = 80V Min Max Unit 500 1.3 1.5 1.8 0.8 A V 10.5 3.5 50 50 50 V k 16 14 8 2.9 2.1.6 1.6 100 mA A Notes: 1. For Inductive load applications. 2. Derate at the rate of 18.2mW/C above TA = 25C (Plastic DIP) 3. CMOS devices have input-static protection but are susceptible to damage when exposed to extremely high static electrical charges. 4. Operation of these devices with standard TTL may require the use of appropriate pull-up resistors to insure an input logic HIGH. 5. Not 100% tested. Guaranteed by design. May 2006 4 M9999-050506 (408) 955-1690 Micrel, Inc. MIC5841/42 Timing Conditions (TA = 25C Logic Levels are VDD and VSS) VDD = 5V A. Minimum Data Active Time Before Clock Pulse (Data Set-Up Time)...................................................................... 75 ns B. Minimum Data Active Time After Clock Pulse (Data Hold Time) ............................................................................ 75 ns C. Minimum Data Pulse Width ................................................................................................................................... 150 ns D. Minimum Clock Pulse Width................................................................................................................................... 150 ns E. Minimum Time Between Clock Activation and Strobe ........................................................................................... 300 ns F. Minimum Strobe Pulse Width.................................................................................................................................. 100 ns G. Typical Time Between Strobe Activation and Output Transition............................................................................ 500 ns SERIAL DATA present at the input is transferred to the shift register on the logic "0" to logic "1" transition of the CLOCK input pulse. On succeeding CLOCK pulses, the registers shift data information towards the SERIAL DATA OUTPUT. The SERIAL DATA must appear at the input prior to the rising edge of the CLOCK input waveform. Information present at any register is transferred to its respective latch when the STROBE is high (serial-to-parallel conversion). The latches will continue to accept new data as long as the STROBE is held high. Applications where the latches are bypassed (STROBE tied high) will require that the ENABLE input be high during serial data entry. When the ENABLE input is high, all of the output buffers are disabled (OFF) without affecting information stored in the latches or shift register. With the ENABLE input low, the outputs are controlled by the state of the latches. MIC5840 Family Truth Table Serial Data Input Clock Input Shift Register Contents Serial Data Output I1 I2 I3 ... I8 H H R1 R2 ... R7 R7 L L R1 R2 ... R7 R7 X R1 R2 R3 ... R8 R8 Latch Contents Strobe Input I1 I2 I3 ... I8 Output Contents Output Enable I1 I2 I3 ... I8 X X X ... X X L R1 R2 R3 ... R8 P1 P2 P3 ... P8 P8 H P1 P2 P3 ... P8 L P1 P2 P3 ... P8 X X X ... X H H H H ... H L = Low Logic Level H = High Logic Level X = Irrelevant P = Present State R = Previous State May 2006 5 M9999-050506 (408) 955-1690 Micrel, Inc. MIC5841/42 Typical Output Driver Typical Input Circuits Maximum Allowable Duty Cycle (Plastic DIP) VDD = 5.0V Number of Outputs ON (IOUT = 200mA VDD = 5.0V) 25C 40C 50C 60C 70C 8 85% 72% 64% 55% 46% Max. Allowable Duty Cycle at Ambient Temperature of 7 97% 82% 73% 63% 53% 6 100% 96% 85% 73% 62% 5 100% 100% 100% 88% 75% 4 100% 100% 100% 100% 93% 3 100% 100% 100% 100% 100% 2 100% 100% 100% 100% 100% 1 100% 100% 100% 100% 100% VDD = 12V Number of Outputs ON (IOUT = 200mA VDD = 12V) 25C 40C 50C 60C 70C 8 80% 68% 60% 52% 44% 7 91% 77% 68% 59% 50% 6 100% 90% 79% 69% 58% 5 100% 100% 95% 82% 69% 4 100% 100% 100% 100% 86% 3 100% 100% 100% 100% 100% 2 100% 100% 100% 100% 100% 1 100% 100% 100% 100% 100% May 2006 Max. Allowable Duty Cycle at Ambient Temperature of 6 M9999-050506 (408) 955-1690 Micrel, Inc. MIC5841/42 Typical Applications May 2006 Relay/Solenoid Driver MIC5842 MIC5841 Hammer Driver MIC5841 Solenoid Driver with Output Enable MIC5841 Level Shifting Lamp Driver with Darlington Emitters Tied to a Negative Supply 7 M9999-050506 (408) 955-1690 Micrel, Inc. MIC5841/42 Typical Applications, Continued CLOCK +75V DATA IN 10k STROBE 15 18 1 0.01 4 VSS 5 VDD 6 15 10k 14 D2 1000p 10k 25 11 1000p 100 10 9 0.01 + -5V Receiver RFC +75V SUB Receive Transmit RFC RFC +75V 12 8 OE Antenna 25 13 7 ST Transmitter D1 +75V 16 LATCHES 3 +5V 17 C SHIFT REGISTER 2 RFC 1000p SUB D3 0.01 D1 (Latch 1) OFF ACTIVE Diode D2 (Latch 5) ACTIVE OFF D3 (Latch 8) OFF ACTIVE PIN Diodes: UM9651 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 The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. 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. (c) 1998 Micrel, Incorporated. May 2006 8 M9999-050506 (408) 955-1690