VN750SM

® M VN750SM HIGH SIDE DRIVER TYPE VN750SM s s RDS(on) 55 mΩ IOUT 6A VCC 36 V C MOS COMPATIBLE INPUT ON STATE OPEN LOAD DETECTION s O FF STATE OPEN LOAD DETECTION s SHORTED LOAD PROTECTION s UNDERVOLTAGE AND OVERVOLTAGE SHUTDOWN s PROTECTION AGAINST LOSS OF GROUND s VERY LOW STAND-BY CURRENT s SO-8 ORDER CODES PACKAGE TUBE VN750SM T&R VN750SM13TR REVERSE BATTERY PROTECTION (*) SO-8 DESCRIPTION The VN750SM is a monolithic device designed in STMicroelectronics VIPower M0-3 Technology, intended for driving any kind of load with one side connected to ground. Active V CC pin voltage clamp protects the device against low energy spikes (see ISO7637 transient compatibility table). Active current limitation combined with thermal shutdown and automatic restart protect the device against overload. The device detects open load condition both in on and off state. The openload threshold is aimed at BLOCK DIAGRAM detecting the 5W/12V standard bulb as an openload fault in the on state. Output shorted to VCC is detected in the off state. Device automatically turns off in case of ground pin disconnection. VCC VCC CLAMP OVERVOLTAGE DETECTION UNDERVOLTAGE DETECTION GND Power CLAMP INPUT LOGIC DRIVER OUTPUT CURRENT LIMITER STATUS ON STATE OPENLOAD DETECTION OVERTEMPERATURE DETECTION OFF STATE OPENLOAD AND OUTPUT SHORTED TO V CC DETECTION (*) See application schematic at page 8 Rev. 1 1/19 July 2004 VN750SM ABSOLUTE MAXIMUM RATING Symbol VCC - VCC - Ignd IOUT - IOUT IIN ISTAT Parameter DC Supply Voltage Reverse DC Supply Voltage DC Reverse Ground Pin Current DC Output Current Reverse DC Output Current DC Input Current DC Status Current Electrostatic Discharge (Human Body Model: R=1.5KΩ; C=100pF) - INPUT VESD - STATUS - OUTPUT - VCC Maximum Switching Energy (L=1.3mH; RL=0Ω; Vbat=13.5V; Tjstart=150ºC; IL=10A) Power Dissipation TC=25°C Junction Operating Temperature Storage Temperature Value 41 - 0.3 - 200 Internally Limited -6 +/- 10 +/- 10 4000 4000 5000 5000 90 4.2 Internally Limited - 55 to 150 Unit V V mA A A mA mA V V V V mJ W °C °C EMAX Ptot Tj Tstg CONFIGURATION DIAGRAM (TOP VIEW) & SUGGESTED CONNECTIONS FOR UNUSED AND N.C. PINS VCC OUTPUT OUTPUT VCC 8 1 5 4 N.C. STATUS INPUT GND Connection / Pin Floating To Ground Status X N.C. X X Output X Input X Through 10KΩ resistor CURRENT AND VOLTAGE CONVENTIONS IS VF IIN INPUT I STAT STATUS VCC IOUT OUTPUT GND VCC VIN VSTAT IGND VOUT 2/19 1 VN750SM THERMAL DATA Symbol Rthj-lead Rthj-amb Parameter Thermal Resistance Junction-lead Thermal Resistance Junction-ambient Value Unit °C/W 82(2) °C/W Max Max 30 93 (1) (1) When mounted on a standard single-sided FR-4 board with 0.5 cm2 of Cu (at least 35µm thick) connected to all VCC pins. Horizontal mounting and no artificial air flow. (2) When mounted on a standard single-sided FR-4 board with 2 cm2 of Cu (at least 35µm thick) connected to all VCC pins. Horizontal mounting and no artificial air flow. ELECTRICAL CHARACTERISTICS (8V VOL Output Current < IOL INPUT L H L H H L H L H L H L H L H OUTPUT L H L X X L L L L L L H H L H STATUS H H H (Tj < TTSD) H (Tj > TTSD) L H L X X H H L H H L 5/19 1 VN750SM ELECTRICAL TRANSIENT REQUIREMENTS ON VCC PIN ISO T/R 7637/1 Test Pulse 1 2 3a 3b 4 5 ISO T/R 7637/1 Test Pulse 1 2 3a 3b 4 5 CLASS C E I -25 V +25 V -25 V +25 V -4 V +26.5 V II -50 V +50 V -50 V +50 V -5 V +46.5 V TEST LEVELS III -75 V +75 V -100 V +75 V -6 V +66.5 V TEST LEVELS RESULTS II III C C C C C C C C C C E E IV -100 V +100 V -150 V +100 V -7 V +86.5 V Delays and Impedance 2 ms 10 Ω 0.2 ms 10 Ω 0.1 µs 50 Ω 0.1 µs 50 Ω 100 ms, 0.01 Ω 400 ms, 2 Ω I C C C C C C IV C C C C C E CONTENTS All functions of the device are performed as designed after exposure to disturbance. One or more functions of the device is not performed as designed after exposure to disturbance and cannot be returned to proper operation without replacing the device. 6/19 1 1 VN750SM Figure 1: Waveforms NORMAL OPERATION INPUT LOAD VOLTAGE STATUS UNDERVOLTAGE VCC VUSD INPUT LOAD VOLTAGE STATUS undefined VUSDhyst OVERVOLTAGE VCCVOL VOL VCC>VOV OPEN LOAD without external pull-up INPUT LOAD VOLTAGE STATUS Tj INPUT LOAD CURRENT STATUS TTSD TR OVERTEMPERATURE 7/19 1 1 VN750SM APPLICATION SCHEMATIC +5V +5V Rprot STATUS VCC Dld µC Rprot INPUT OUTPUT GND VGND RGND DGND GND PROTECTION REVERSE BATTERY NETWORK AGAINST Solution 1: Resistor in the ground line (RGND only). This can be used with any type of load. The following is an indication on how to dimension the RGND resistor. 1) RGND ≤ 600mV / (IS(on)max). 2) RGND ≥ (−VCC) / (-IGND) where -IGND is the DC reverse ground pin current and can be found in the absolute maximum rating section of the device’s datasheet. Power Dissipation in RGND (when VCC