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| HI-8040 August 2005 CMOS HIGH VOLTAGE DISPLAY DRIVER APPLICATIONS ! Dichroic Liquid Crystal Displays ! Standard Liquid Crystal Displays ! MEMS Drivers GENERAL DESCRIPTION The HI-8040 is a CMOS integrated circuit designed for high voltage LCD display drive applications. It can drive 85 segments at voltages between +5 and -30 volts. An optional voltage converter can generate the negative display drive voltage. Test inputs facilitate opens and shorts testing. The backplane frequency is checked and, as long as power is available, the segments are shut "Off" if the frequency becomes too low. The HI-8040 is part of a family of display drivers which control segment information in the same way. Data is serially clocked into the device and the data for all segment outputs are latched in parallel when the Load input transitions from high to low. With the Data Out from the shift register available, devices may be cascaded to obtain more segment outputs. The shift register is 85 bits long. The die is metal mask programmable to provide for various package and/or cascade tap options. Consult your Holt Sales representative to explore the possibilities. PIN CONFIGURATION (Top View) S59 S58 S57 S56 S55 S54 S53 S52 S51 S50 S49 S48 S47 S46 S45 S44 S43 S42 S41 S40 S39 S38 S37 S36 S35 S34 S33 S32 S31 S30 S60 S61 S62 S63 S64 S65 S66 S67 S68 S69 S70 S71 S72 S73 S74 S75 S76 S77 S78 S79 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 100 PIN QUAD CERPACK FEATURES ! 4 MHz serial input data rate ! 85 segment outputs ! Cascadable ! 5 Volt inputs translated to 35 Volts ! Test pins allow hardware all "ON", all "OFF" or alternating ! Monitors backplane oscillation and forces all segments to "OFF" condition if below 10Hz ! Negative voltage converter available on-chip ! CMOS low power ! Military processing available FUNCTIONAL BLOCK DIAGRAM DIN CL CS LD BPOSC BPIN S80 S81 S82 S83 S84 S85 VSS CS CL LD DIN BPOSC BPIN CONVOT VDD DOUT85 CONVOC VEE T1 T2 BP S1 S2 S3 S4 S5 S6 S7 S8 S9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10 See page 5 for magnified view DATA IN 8 5 Sta g e S h i ft R e g i s t e r CLK DOUT 85 LE 85 Bit Latch Oscillator Divider Vo l ta g e Tr a n s l a t o r H i g h Vo l ta g e B u ff e r Vo l ta g e Tr a n s l a t o r s H i g h Vo l ta g e Drivers BP 85 SEGMENTS (DS8040 Rev. B) HOLT INTEGRATED CIRCUITS www.holtic.com 08/05 HI-8040 FUNCTIONAL DESCRIPTION INPUT LOGIC CS must be held low to enter data into the shift register. The data is clocked on the negative edge of CL. LD is normally held low and only pulsed high when new data is ready for display. When LD is high the latch is transparent. All four logic inputs are TTL compatible. A logic "1" at DIN that is eventually latched to the segment drivers will cause the segment to be at the opposite voltage level of the BP pin (out of phase). BPOSC and BPIN The user can either make an oscillator to create the backplane frequency or drive an external clock into BPIN leaving BPOSC open. To make an oscillator, pins BPOSC and BPIN must be connected together and the appropriate R and C combination applied (See Figure 1). If the oscillator is used, the backplane frequency is approximately 1 fBP = 256 RC (for R = 180KW & C = 220pF, fBP 100Hz). . VEE & NEGATIVE VOLTAGE CONVERTER VEE may be externally driven to a maximum -30V. Alternatively, there is a voltage converter that will provide -21.4 volts (See Figure 2). If the converter pins are left open circuit, an on-chip sense resistor will cause shut down of all current consumption associated with the converter. The converter will survive a shorted segment condition and continue to maintain VEE at -20 volts. The test inputs must be tied to the appropriate logic level for correct circuit operation. DOUT The DOUT pin is available from segment 85 for cascading devices to drive more segments and for verifying the data integrity. This output can drive 2 TTL loads. It changes on the positive edge of CL. AUTOMATIC SEGMENTS OFF The internal backplane signal is tested continuously to be at least 10Hz. If the detector senses f<10Hz, then the segments are forced to the same voltage as the backplane (all segments in "OFF" state). However, the detector is only functional while VDD is above the minimum operating voltage specification. TEST INPUTS The test functions available are: T2 T1 Display 0 0 Normal 0 1 All Off 1 0 All On 1 1 Alternating On/Off Segments VDD R 330KW C R CONVOSC OSC RSENSE Control / 256 VDD R BPIN BPOSC TO BACKPLANE TRANSLATOR AND DRIVER Q IN5818, IN5819 CONVOUT 330h VSS VDD C VSS VEE 10F VSS Figure 1. INTERNAL OSCILLATOR CIRCUIT Figure 2. OPTIONAL VOLTAGE CONVERTER HOLT INTEGRATED CIRCUITS 2 HI-8040 LD CL CS DIN BP CS CL LD DIN DO CS CL LD DIN DO CS CL LD DIN DO 1MW 1500pF 1F 1MW 1F R BPIN BP BPIN BPOSC BP BPIN BPOSC BP V os C BPOSC 1MW SEGMENTS SEGMENTS BACK PLANE 1MW 1F SEGMENTS SEG n 360pF 1F Figure 3. RC OSCILLATOR AND CASCADED DEVICES Figure 4. OFFSET MEASUREMENT CL INPUT tCL tCW DIN INPUT tDS tDH CS INPUT tCSS tCSH LD INPUT tLCS tCSL tLS VALID tCDO DOUT OUTPUT tLW Figure 5. TIMING DIAGRAM HOLT INTEGRATED CIRCUITS 3 HI-8040 ABSOLUTE MAXIMUM RATINGS Voltages referenced to VSS = 0V VDD........................ 0V to 7V VEE................VDD-35V to 0V Voltage at any input, except BPIN....-0.3 to VDD+0.3V Voltage at BPIN input.................VDD-35 to VDD+0.3V DC Current any input pin...................................10 mA Supply Voltage Power Dissipation......................................................300 mW Operating Temperature Range - Industrial...... -40 to +85C Operating Temperature Range - Hi-Temp/Mil...-55 to +125C Storage Temperature Range............................-65 to +150C NOTE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS VDD = 5V 5%, VEE = -21.5V, VSS = 0V, TA = operating temperature range (unless otherwise specified). PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS Operating Voltage Supply Current: (Converter Off, fBP = 100Hz) Input Low Voltage (excluding BPIN) Input High Voltage (excluding BPIN) Input Low Voltage (BPIN) Input High Voltage (BPIN) Input Current Input Capacitance (Guaranteed, not tested) Segment Output Impedance Backplane Output Impedance Data Out Current: Source Current Sink Current Voltage Converter: @ No Load (VDD - VSS = 5V, TA = 25C) @ 0.1mA Load @ 10KW Load Offset Voltage (Guaranteed, not tested) VDD IDD IEE VIL VIH VILX VIHX IIN CI RSEG RBP IDOH IDOL VEEC IDD VEEC VOS 3.0 Static, No Load Static, No Load 0 2 VEE 0.8 VDD VIN = 0 to 5V IL = 10A IL = 10A VOH = 4.5 VOL = 0.4 See Fig. 2 See Fig. 2 See Fig. 2 See Fig. 4 300 7.0 600 120 0.8 VDD 0.6 VDD VDD 100 5 15,000 600 -3.0 -21 1.8 25 3.2 -22 -20 -21.5 V A A V V V V nA pF W W mA mA V mA V mV AC ELECTRICAL CHARACTERISTICS VDD = 5V , VEE = -21.5V, VSS = 0V, TA = operating temperature range (unless otherwise specified). PARAMETER SYMBOL VDD MIN TYP MAX UNITS Clock Period Clock Pulse Width Data In - Setup Data In - Hold Chip Select - Setup to Clock Chip Select - Hold to Clock Load - Setup to Clock Chip Select - Setup to Load Load Pulse Width Chip Select - Hold to Load Data Out Valid, from Clock non-cascaded cascaded non-cascaded cascaded tCL tCL tCW tCW tDS tDH tCSS tCSH tLS tCSL tLW tLCS tCDO 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 250 500 125 250 80 80 100 120 120 0 130 120 170 ns ns ns ns ns ns ns ns ns ns ns ns ns HOLT INTEGRATED CIRCUITS 4 HI-8040 ORDERING INFORMATION PART NUMBER HI-8040Q HI-8040QT PACKAGE DESCRIPTION TEMPERATURE RANGE FLOW I T M BURN IN LEAD FINISH SOLDER SOLDER SOLDER 100-PIN CERAMIC QUAD FLAT PACK (CQFP) 100-PIN CERAMIC QUAD FLAT PACK (CQFP) -40C to +85C -55C to +125C -55C to +125C NO NO YES HI-8040QM-01 100-PIN CERAMIC QUAD FLAT PACK (CQFP) MAGNIFIED VIEW OF PIN ASSIGNMENTS S59 S58 S57 S56 S55 S54 S53 S52 S51 S50 S49 S48 S47 S46 S45 S44 S43 S42 S41 S40 S39 S38 S37 S36 S35 S34 S33 S32 S31 S30 S60 S61 S62 S63 S64 S65 S66 S67 S68 S69 S70 S71 S72 S73 S74 S75 S76 S77 S78 S79 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 Pin 1 S80 S81 S82 S83 S84 S85 VSS CS CL LD DIN BPOSC BPIN CONVO VDD DOUT85 CONVO VEE T1 T2 BP S1 S2 S3 S4 S5 S6 S7 S8 S9 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 100 PIN QUAD CERPACK 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10 HOLT INTEGRATED CIRCUITS 5 HI-8040 PACKAGE DIMENSIONS inches (millimeters) 100-PIN CERAMIC QUAD FLAT PACK Package Type: 100 CQR .014 .002 TYP (.356 .051 TYP) .0256 .002 TYP (.6502 .051 TYP) .654 .012 (16.612 .305) .551 .006 (13.995 .152) .718 .014 (18.237 .356) Pin 1 .890 .012 (22.606 .305) .787 .007 (19.99 .178) .032 .008 (.813 .203) .170 MAX (4.318 MAX) .0065 .0015 (.165 .038) 0 to 7 Detail A .008 TYP (.203 TYP) .954 .014 (24.23 .356) Detail A HOLT INTEGRATED CIRCUITS 6 |
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