LMD18400N

LMD18400 NSC | Alldatasheet

Document overview

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Technical content

Features

Y Four independent outputs with l3A peak, 1A continu- ous current capability Y 1.3X maximum ON resistance over temperature Y True instantaneous power limit for each switch Y High survival voltage (60 V DC, 80V transient) Y Shorted load (to ground and supply) protection Y Overvoltage shutdown at V CC l 35V Y LS TTL/CMOS compatible logic inputs and outputs Y k10 mA supply current in ‘‘sleep’’ mode Y b5V output clamp for discharging inductive loads Y Serial data interface for 11 diagnostic checks: Ð Switch ON/OFF status Ð Open or shorted load Ð Operating temperature Ð Excessive supply voltage Y Two direct-output error flags

Applications

Y Relay and solenoid drivers Y High impedance automotive fuel injector drivers Y Lamp drivers Y Power supply switching Y Motor drivers Typical Application TL/H/11026–1 Connection Diagram TL/H/11026–2 Order Number LMD18400N See NS Package Number N20A TRI-STATEÉ is a registered trademark of National Semiconductor Corporation. MICROWIRETM is a trademark of National Semiconductor Corporation.

Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Survival Voltage (Pin 20) Transient (t e 10 ms) 80V Continuous b0.5V to a60V Output Transient Current (Each Switch) 3.75A Output Transient Current (Total, All Switches) 6A Output Steady State Current (Each Switch) 1A Logic Input Voltage (Pins 3, 9, 10, 11, 12) b0.3V to a16V Logic Input Voltage (Pins 4, 7) b0.3V to a6V Error Flag Voltage 16V ESD Susceptibility (Note 2) 2000V Power Dissipation (Note 3) 5W Internally Limited Junction Temperature (T JMax) 150 §C Storage Temperature Range b65§Ct o a150§C Lead Temperature (Soldering, 10 Sec.) a260§C Operating Ratings (Note 1) Ambient Temperature Range (T A) b25§Ct o a85§C Supply Voltage Range 7V to 28V Electrical Characteristics VCC e 12V, C CP e 0.01 mFd, unless otherwise indicated. Boldface limits apply over the entire operating temperature range, b25§C s TA s a85§C, all other limits are for T A e TJ ea 25§C. Parameter Conditions Typical Limit Units (Note 4) (Note 5) (Limit) DC CHARACTERISTICS Supply Current Enable Input e 0V 0.04 10 mA (Max) Enable Input e 5V, Inputs e 0V 7.5 15 mA (Max) Enable Input e 5V, Inputs e 5V Open Loads 7.5 15 mA (Max) Output Leakage Enable Input e 0V, Inputs e 0V 0.01 300 mA (Max)(Pins 1, 2, 18, 19) Rds ON I OUT e 1A, (Note 6) 0.8 1.3 X (Max) Short Circuit Current V CC e 12V, (Note 6) 1.2 0.6 A (Min) VCC e 7V, (Note 6) 2.4 A VCC e 28V, (Note 6) 0.6 A Maximum Output Current V CC b VO e 4V, (Note 6) 3.75 A Load Error Threshold Voltage Pins 1, 2, 18, 19 4.1 V Open Load Detection Current Pins 1, 2, 18, 19 150 mA Negative Clamp Output Voltage I O e 1A, (Note 6) b5V Overvoltage Shutdown Threshold 31 40 V (Max) Overvoltage Shutdown Hysteresis 0.75 V Error Output Leakage Current V Pin 13 e 12V 0.001 10 mA (Max) Thermal Warning Temperature V Pin 13 k 0.8V 145 §C Thermal Shutdown Temperature V Pin 17 k 0.8V 170 §C http:/ /www.national.com 2

Electrical Characteristics VCC e 12V, C CP e 0.01 mF, unless otherwise indicated. Boldface limits apply over the entire operating temperature range, b25§C s TA s a85§C, all other limits are for T A e TJ ea 25§C. (Continued) Parameter Conditions Typical Limit Units (Note 4) (Note 5) (Limit) AC CHARACTERISTICS Switch Turn-On Delay Enable (Pin 3) e 5V, 51 0 ms (Max)(td(ON))I OUT e 1A Switch Turn-On Rise I OUT e 1A 71 5 ms (Max)Time (t ON) Switch Turn-Off Delay Enable (Pin 3) e 5V, 0.5 2 ms (Max) (tdOFF)I OUT e 1A Switch Turn-Off Fall I OUT e 1A 0.15 1 ms (Max)Time (t OFF) Enable Time (t EN) Measured with Switch 1, 30 50 ms (Max)Pin 9 e 5V Error Reporting Delay Enable (Pin 3) e 5V, 75 150 ms (Max)(tError) Switch 1 Load Opened Data Setup Time (t DS)C L e 30 pF 200 500 ns (Min) TRI-STATEÉ Control (t 1H,t OH) Pin 8, Hi-Z Enable Time 2 ms Data Clock Frequency 3 1 MHz (Max) DIGITAL CHARACTERISTICS Logic ‘‘1’’ Input Voltage Pins 3, 4, 7, 9, 10, 11, 12 2.0 V (Min) Logic ‘‘0’’ Input Voltage Pins 3, 4, 7, 9, 10, 11, 12 0.8 V (Max) Logic ‘‘1’’ Input Current Pins 4, 7 0.001 1 mA (Max) Logic ‘‘0’’ Input Current Pins 4, 7 b0.001 b1 mA (Max) TRI-STATE Output Current Pin 8, Pin 4 e 5V 0.05 10 mA (Max) Pin 8 e 0V b0.05 b10 mA (Max) Enable Input Current Pin 3 e 2.4V 12 25 mA (Max) Channel Input Resistance Pins 9, 10, 11, 12 75 15 kX (Min) Error Output Sink Current Pin 13 e 0.8V 4 1.6 mA (Min) Logic ‘‘1’’ Output Voltage Pin 8 IOUT eb 360 mA 4.4 2.4 V (Min) IOUT eb 10 mA 5.1 4.5 V (Min) IOUT eb 10 mA 5.5 V (Max) Logic ‘‘0’’ Output Voltage Pin 8 0.4 V (Max)IOUT e 100 mA Thermal Shutdown Output Pin 17 e 2.4V 53 mA (Min)Source Current Thermal Shutdown Output Pin 17 e 0.8V 360 250 mA (Min)Sink Current http:/ /www.national.com3

Electrical Characteristics Notes Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. Note 2: Human body model; 100 pF discharge through a 1.5 k X resistor. All pins except pins 8 and 13 which are protected to 1000V and pins 1, 2, 18 and 19 which are protected to 500V. Note 3: The maximum power dissipation is a function of T JMax, iJA, and T A and is limited by thermal shutdown. The maximum allowable power dissipation at any ambient temperature is P D e (TJMax b TA)/iJA. If this dissipation is exceeded, the die temperature will rise above 150 §C and the device will eventually go into thermal shutdown. For the LMD18400 the junction-to-ambient thermal resistance, iJA,i s6 0 §C/W. With sufficient heatsinking the maximum continuous power dissipation for the package will be, I DCMax2 c RON(Max) c 4 switches (1A 2 c 1.3X c 4 e 5.2W). Note 4: Typical values are at T J ea 25§C and represent the most likely parametric norm. Note 5: All limits are 100% production tested at a25§C. Limits at temperature extremes are guaranteed through correlation and accepted Statistical Quality Control (SQC) methods. Note 6: Pulse Testing techniques used. Pulse width is k 5 ms with a duty cycle k 1% . Timing Specification Definitions Switching Turn ON/OFF TL/H/11026–3 Enable Turn-ON TL/H/11026–4 Error Reporting Delay TL/H/11026–5 Data Setup Time TL/H/11026–6 http:/ /www.national.com 4

Typical Performance Characteristics For all curves, V CC e 12V, Temperature is the junction temperature unless otherwise noted. vs Temperature Switch ON Resistance TL/H/11026–31 vs Temperature ‘‘Sleep’’ Mode Supply Current TL/H/11026–32 Ambient Temperature Dissipation vs Maximum Power TL/H/11026–33 vs Temperature Short Circuit Current TL/H/11026–34 vs Temperature Clamp Characteristics TL/H/11026–35 Voltage vs Temperature Error Sense Threshold TL/H/11026–36 vs Temperature Turn ON Rise Time TL/H/11026–37 vs Temperature Turn ON Delay Time TL/H/11026–38 vs Temperature Turn OFF Time TL/H/11026–39 Resistance vs Temperature Switch Select Logic Input TL/H/11026–40 vs Temperature Enable Threshold Voltage TL/H/11026–41 vs Sink Current Error Output Voltage TL/H/11026–42 http:/ /www.national.com5

TL/H/11026–8 Truth Table Enable Chip Select Switch Control Error Thermal SD Input Input Input Output Output Conditions (Pin 3) (Pin 4) (Pins 9, 10, 11, 12) (Pin 13) (Pin 17)

0 X X 1 0 ‘‘Sleep’’ Mode, I Supply k 10 mA

1 X 0 1 1 Selected Switch is OFF

1 X 1 1 1 Selected Switch is ON, Normal Operation

1 X 0 0 1 Switch is OFF but:

a. Load is Open Circuited, or b. Load is Shorted to V CC,o r c. T J l a145§C, or d. V CC l a35V

1 X 1 0 1 Switch is ON, but;

a. Load is Shorted to Ground, or b. Switch is in Power Limit, or c. T J l a145§C, or d. V CC l a35V and Switch is Actually OFF 1X 1 0 0 T J l a170§C, All Switches are OFF 1 1 X X X Data Output Pin is TRI-STATE 1 0 X X X Data Output Pin is Enabled and Ready to Output Diagnostic Information http:/ /www.national.com 6

ON/OFF Switching of Multiple Voltage Regulated Circuit Loads TL/H/11026–25 Unipolar Drive for a 4-Phase Stepper Motor TL/H/11026–26 http:/ /www.national.com 14

Applications (Continued) Recommended Connection if No Diagnostics are Required TL/H/11026–27 Simple protection of the LMD18400 against supply voltage reversal. Loads will be energized through the intrinsic diodes in parallel with the power switches. The Schottky diode will add approximately 0.2V to the logic input switching thresholds and the logic output low levels. TL/H/11026–28 http:/ /www.national.com15

Applications (Continued) Simple Light ‘‘Chaser’’ TL/H/11026–29 Parallelling switches for higher current capability. Positive temperature coefficient of the switch ON resistance provides ballasting to evenly share the load current between the switches. Any combination of switches can be paralleled. Required peak load current will depend upon the motor load. Motor speed control can be provided by a PWM signal of up to 20 kHz applied to the motor drive input lines. TL/H/11026–30 http:/ /www.national.com 16

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LMD18400 Quad High Side Driver Physical Dimensions inches (millimeters) unless otherwise noted Order Number LMD18400N LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant support device or system whose failure to perform can into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life failure to perform, when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can effectiveness. be reasonably expected to result in a significant injury to the user. National Semiconductor National Semiconductor National Semiconductor National Semiconductor Corporation Europe Hong Kong Ltd. Japan Ltd.

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a49 (0) 180-530 85 86 13th Floor, Straight Block, Tel: 81-043-299-2308 Arlington, TX 76017 Email: europe.support @ nsc.com Ocean Centre, 5 Canton Rd. Fax: 81-043-299-2408 Tel: 1(800) 272-9959 Deutsch Tel: a49 (0) 180-530 85 85 Tsimshatsui, Kowloon Fax: 1(800) 737-7018 English Tel: a49 (0) 180-532 78 32 Hong Kong Fran3ais Tel: a49 (0) 180-532 93 58 Tel: (852) 2737-1600 http:/ /www.national.com Italiano Tel: a49 (0) 180-534 16 80 Fax: (852) 2736-9960 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.