XD2981

XD2981 DIP18 / XL2981 SOP18 Features and Benefits Description ▪ TTL, DTL, PMOS, or CMOS compatible inputs ▪ 500 mA output source current capability ▪ Transient-protected outputs ▪ Output breakdown voltage to 50 V ▪ DIP or SOIC packaging Recommended for high-side switching applications that benefit from separate logic and load grounds, these devices encompass load supply voltages to 50 V and output currents to -500 mA. These 8-channel source drivers are useful for interfacing between low-level logic and high-current loads. Typical loads include relays, solenoids, lamps, stepper and/or servo motors, print hammers, and LEDs. All devices may be used with 5 V logic systems — TTL, Schottky TTL, DTL, and 5 V CMOS. The device packages offered are electrically interchangeable, and will withstand a maximum output off voltage of 50 V, and operate to a minimum of 5 V. All devices in this series integrate input current limiting resistors and output transient suppression diodes, and are activated by an active high input. Simplified Block Diagrams DIP18 and SOP18 The suffix “A” indicates an 18-lead plastic dual in-line package with copper lead frame for optimum power dissipation. Under normal operating conditions, these devices will sustain 120 mA continuously for each of the eight outputs at an ambient temperature of +50°C and a supply of 15 V. Absolute Maximum Ratings Characteristic Symbol Notes Rating Units 5 to 50 V 2981 20 V XL2982SL,2981 20 V –500 mA – – Range E –40 to 85 ºC Range S –20 to 85 ºC Output Voltage Range VCE Input Voltage VIN Output Current IOUT Package Power Dissipation PD Operating Ambient Temperature TA Maximum Junction Temperature TJ(max) 150 ºC Tstg –55 to 150 ºC Storage Temperature See graph 1 A L L OWA B L E P A C K A G E P OW E R DIS S IP A T ION (W) XD2981 DIP18 / XL2981 SOP18 2.5 2.0 18-P IN DIP , R JA = 65 C /W 20-LE AD S OIC , R JA = 90 C /W 1.5 1.0 0.5 0 25 50 75 100 A MB IE NT T E MP E R A T UR E C 125 One of Eight Drivers Typical electrosensitive printer application 2 150 XD2981 DIP18 / XL2981 SOP18 2981 DIP18/SOP18 R IN1 1 18 IN2 2 17 IN3 3 16 IN4 4 15 IN5 5 14 IN6 6 13 IN7 7 12 IN8 8 11 VS 9 10 R R R R R R R L L L L L L L L 2982 SOP20 (LW Package) R IN1 1 20 IN2 2 19 IN3 3 18 IN4 4 17 IN5 5 16 IN6 6 15 IN7 7 14 IN8 8 13 VS 9 12 NC 10 11 R R R R R R R L L L L L L L L NC Pins 10 and 11 can float; other pins match discontinued 18-pin SOIC: 1 to 9 same, pins 12 to 20 match pins 10 to 18 3 XD2981 DIP18 / XL2981 SOP18 ELECTRICAL CHARACTERISTICS1,2 at TA = +25°C (unless otherwise specified). Symbol Variant Test Fig. Min. Typ. Max. Units Output Leakage Current3 Characteristic ICEX All VIN = 0.4 V, VS = 50 V 1 — — 20 μA Output Sustaining Voltage VCE(SUS) All IOUT = -45 mA — 35 — — V VIN = 2.4 V, IOUT = -100 mA 2 — 1.6 1.8 V VIN = 2.4 V, IOUT = -225 mA 2 — 1.7 1.9 V VIN = 2.4 V, IOUT = -350 mA 2 — 1.8 2.0 V VIN = 2.4 V 3 — 140 200 μA VIN = 3.85 V 3 — 310 450 μA VIN = 2.4 V 3 — 140 200 μA VIN = 12 V 3 — 1.25 1.93 mA 2981 VIN = 2.4 V, VCE = 2.0 V 2 -350 — — mA 2982 VIN = 2.4 V, VCE = 2.0 V 2 -350 — — mA Collector-Emitter Saturation Voltage VCE(SAT) All 2981 Input Current IIN(ON) 2982 Output Source Current (Outputs Open) lOUT Test Conditions Supply Current Leakage Current IS All VIN = 2.4 V*, VS = 50 V 4 — — 10 mA Clamp Diode Current IR All VR = 50 V, VIN = 0.4 V* 5 — — 50 μA Clamp Diode Forward Voltage VF All IF = 350 mA 6 — 1.5 2.0 V Turn-On Delay tON All 0.5 EIN to 0.5 EOUT, RL = 100Ω, VS = 35 V — — 0.3 2.0 μs All 0.5 EIN to 0.5 EOUT, RL = 100Ω, VS = 35 V, See Note — — 2.0 10 μs Turn-Off Delay4 1Negative tOFF current is defined as coming out of (sourcing) the specified device terminal. 2All unused inputs must be connected to ground. Pull-down resistors (approximately 10 kΩ) are recommended for inputs that are allowed to float while power is being applied to VS. 3All inputs simultaneously. 4Turn-off delay is influenced by load conditions. Systems applications well below the specified output loading may require timing considerations for some designs, i.e., multiplexed displays or when used in combination with sink drivers in a totem pole configuration. 4 XD2981 DIP18 / XL2981 SOP18 TEST FIGURES Figure 1 Figure 2 VS VS V Figure 3 V V CE I IN mA V mA OPEN I OUT VIN μA IN S V IN I CEX Figure 4 Figure 5 VS VS I S mA OPEN μA OPEN VIN Figure 6 IR OPEN VF VIN 5 V I F XD2981 DIP18 / XL2981 SOP18 Allowable peak collector current as a function of duty cycle 500 500 450 450 RECOMMENDED MAXIMUM OUTPUT CURRENT 350 3 300 4 5 250 200 NUMBER OF OUTPUTS CONDUCTING SIMULTANEOUSLY 8 7 6 150 100 400 ALLOWABLE PEAK COLLECTOR CURRENT IN mA AT 70°C 400 VS = 15 V RECOMMENDED MAXIMUM OUTPUT CURRENT 350 300 3 4 250 5 200 8 7 6 NUMBER OF OUTPUTS CONDUCTING SIMULTANEOUSLY 150 100 VS = 15 V 50 0 50 0 10 20 30 50 60 40 PER CENT DUTY CYCLE 70 80 90 0 100 10 0 20 30 Input current as a function of input voltage 2.5 2.0 INPUT CURRENT, IIN (mA) ALLOWABLE PEAK COLLECTOR CURRENT IN mA AT 50°C XDXL/2981 and XL2982SL 1.5 UM IM X MA 1.0 AL PIC TY 0.5 2 4 6 8 INPUT VOLTAGE (VOLTS) 6 10 12 50 60 40 PER CENT DUTY CYCLE 70 80 90 100 XD2981 DIP18 / XL2981 SOP18 67