Ordering number : EN5670 Monolithic Linear IC LA5318V Voltage-Dividing Voltage Generator for Multi-Voltage LCD Matrix Drive Overview Package Dimensions The LA5318V is a variable voltage-dividing voltage generator IC designed for driving LCD matrixes that require multiple voltages. unit: mm 3179A-SSOP20 Allowable power dissipation, Pd – mW [LA5318V] SANYO: SSOP20 Ambient temperature, Ta – °C Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Maximum supply voltage VEE max VCC – VEE Maximum output current IOUT max V1 to V4 Allowable power dissipation Ratings 36 Unit V Internal* mA 330 mW Pd max Operating temperature Topr –20 to +75 °C Storage temperature Tstg –30 to +125 °C Notes: *The value stipulated in the conditions listed in the separate document shall be used as the maximum output current. 1. Continuous operation (without damage to the device) is guaranteed in the above ranges. 2. The output pins V1 to V4 may be shorted to the power supply or to ground for periods of up to 1 ms. (When |VCC – VEE| < 35 V) Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit –35.5 to –6 V Supply voltage VEE VCC – VEE Input voltage VREF VCC – VREF: VREF ≥ VEE –35 to –6 V Input current IINR INR –0.2 to 0 mA mA Output current IOUTR OUTR 0 to 50 IOUT1, 2 V1, V2 –5 to +5 mA IOUT3,4 V3, V4 –10 to +5 mA Note: VCC and VEE must be set up so that |V1| and |VEE – V4| are at least 1 V. SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 82097HA(OT) No. 5670-1/4 LA5318V Operating Characteristics at Ta = 25°C, VCC –VEE= –20 V, VREF = VEE, RX = 8R, BIN = OPEN Parameter Current drain Symbol ICC, IEE Conditions Ratings min VCC – VEE= –20 V, RX = 8R, INR = VCC : VCC, VEE Output voltage ratio 1 Ra1 V2/V1 1.96 Output voltage ratio 2 Ra2 (VREF – V3)/(VREF – V4) Output voltage ratio 3 Rb1 VREF/V1 typ Unit max 0.35 0.5 2.00 2.04 1.96 2.00 2.04 11.64 12.00 12.36 Output voltage ratio 4 Rb2 VREF/V2 5.82 6.00 6.18 Output voltage ratio 5 Rb3 VREF /(VREF – V3) 5.82 6.00 6.18 Output voltage ratio 3 Rb4 VREF /(VREF – V4) 11.64 12.00 12.36 Internal resistance ratio 1 RX1 RX1 – RX2 Internal resistance ratio 2 RX2 RX1 – RX3 Internal resistance ratio 3 RX3 RX1 – RX4 Internal resistance ratio 4 RX4 RX1 – VIN3 15 The value of R when the voltage across RX4 and VIN3 is 0.5 V. 30 Resistance R mA 8 Referenced to the resistance R between RX4 and VIN3 12 14 kΩ Load regulation 1 ∆V1 +0.1 mA < IOUT1 < +5 mA : V1 ±20 mV Load regulation 2 ∆V2 +0.1 mA < IOUT2 < +5 mA : V2 ±20 mV Load regulation 3 ∆V3 +0.1 mA < IOUT3 < +5 mA : V3 ±20 mV Load regulation 4 ∆V4 +0.1 mA < IOUT4 < +5 mA : V4 ±20 mV ±20 mV Load regulation –1A –∆V1A –0.5 mA < IOUT1 < –0.1 mA : V1 Load regulation –2A –∆V2A –0.5 mA < IOUT2 < –0.1 mA : V2 ±20 mV –∆V3 –10 mA < IOUT3 < –0.1 mA : V3 ±20 mV –∆V4 Load regulation –3 Load regulation –4 –10 mA < IOUT4 < –0.1 mA : V4 ±20 mV Load regulation –1B –∆V1B –5 mA < IOUT1 < –0.1 mA, BIN = GND : V1 ±20 mV Load regulation –2B –∆V2B –5 mA < IOUT2 < –0.1 mA, BIN = GND : V2 ±20 mV OUTR pin saturation voltage VOUTR IOUT = 20 mA, VCC – INR = 2.7 : OUTR – VEE 0.5 V Note: For IOUT, minus (–) indicates source current and plus (+) indicates sink current. Pin Assignment Block Diagram V1, V2 bias control VREF control (This circuit must be used with VRX1 ≥ VRX2 ≥ VRX3 ≥ VRX4.) No. 5670-2/4 LA5318V Maximum Output Current Load Test Conditions Input 1 Input 2 VCC – VEE = 35 V, RX = 8R, C1 to C4 = 10 µF, C5 = 33 µF, All resistors must be rated 1 W or higher. TR1 to TR4; 2SA984 Rank E or F TR5 to TR9; 2SC2274 Rank E or F Set the output load resistors (R1 to R8) so that currents of 25 to 30 mA maximum (except for the V3 and V4 source sides, which can handle about 60 mA) flow in the sink and source sides when high (on state) levels are input to inputs 1 and 2. Input 1 Input 2 · VREF control block Determining the TR1 drive current V – VBE – VIN I = CC 11 k + R (VBE ≈ 0.7 V) Drive current V – 0.7 – VIN IO ≈ 10I = CC × 10 11 k + R Assume that the TR1hFE is 50 for this calculation. Note: Connect INR to VCC when INR and OUTR are not used. No. 5670-3/4 LA5318V Current drain, ICC – mA Output voltage, VOUT – V (Source side) Output current, IOUT – mA Supply voltage, VCC – V Output Voltage Ratio – Ta Output current, IOUT – mA Output voltage ratio, Rb1, Rb2 Output voltage ratio, Rb2, Rb3 Output voltage ratio, Rb1, Rb4 Output voltage, VOUT– V (Sink side) Ambient temperature, Ta – °C ■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. ■ Anyone purchasing any products described or contained herein for an above-mentioned use shall: ➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: ➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. ■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of August, 1997. Specifications and information herein are subject to change without notice. No. 5670-4/4