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| STM802 SOLENOID CONTROLLER IC s s s s s s s s s s s WIDE SUPPLY VOLTAGE RANGE: 8 TO 35V DC BUILD-IN GATE DRIVE VOLTAGE CLAMP TYP. 11V LOGIC CONTROLLED ENABLING CIRCUIT DIGITAL IN-RUSH TIMER BUILT-IN POWER-ON RESET INTERNALLY TRIMMED TIMING OSCILLATOR NO EXTERNALLY TIMING CAPACITORS NEEDED FIXED IN-RUSH/HOLD CURRENT RATIO LOW DROP CURRENT SENSING RESISTOR INTEGRATED FILTER IN THE FEEDBACK LOOP (TIME COSTANT OF 2s TYP.) SO-8 PACKAGE SO-8 DESCRIPTION This circuit is basically switch mode current regulator with 2 modes (In-rush and Holding). In-rush current occurs in the first 64 ms of each ORDERING CODES Type STM802BD STM802BDR Temperature Range -40 to 85 C -40 to 85 C Package on/off cycle with the rise time dependent on the coil's resistance and inductance. The Hold-current is a partition of the In-rush current fixed by the ratio between V1 and V2. A control pin is provided for enabling and disabling the gate control output for the external power MOS. The MOS transistor must be chosen according to the supply voltage range and the current flowing through the solenoid. Comments 100 parts per tube / 20 parts per box 2500 parts per reel SO-8 (Tube) SO-8 (Tape & Reel) October 2003 1/8 STM802 BLOCK DIAGRAM AND SCHEMATIC CIRCUIT PIN CONFIGURATION PIN DESCRIPTION PlN N 1 2 3 4 5 6 7 8 SYMBOL TST (Note 1) VCC BYP EN PWMG LING FB GATE Test Input Supply Voltage Bypass capacitor Enable Input Switch Ground Linear Ground FeedBack Gate Control Output NAME AND FUNCTION Note 1: The TST pin is for testing purpose only. Must be left FLOATING for normal operation. 2/8 STM802 TRUTH TABLES FOR ENABLE PIN EN LOW HIGH FLOAT DEVICE ENABLED DISABLED DISABLED Note 1: The TST pin is for testing purpose only. Must be left FLOATING for normal operation. ABSOLUTE MAXIMUM RATINGS Symbol VCC VI IIK IOK PD TL TSTG Supply Voltage DC Input Voltage of EN, FB DC Input Diode Current DC Output Diode Current Maximum Power Dissipation Lead Temperature (10sec) Storage Temperature Range Parameter Value -0.5 to 40 -0.5 to 7 20 -20/+5 500 300 -65 to 150 Unit V V mA mA mW C C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING CONDITIONS (Unless otherwise noted. Typical values are at TA = 25C) Symbol VCC VIL VIH VHYST IIN IQ ICC VCLAMP V1 V2 TINR IGH IGL VBYP TC TOP Parameter Operative Supply Voltage Range Low Level Input Thresholds of Enable High Level Input Thresholds of Enable Hysteresis of Enable Input Input Leakage Current of Enable Quiescent Supply Current Supply Current Gate drive voltage clamp Voltage reference for Inrush current Voltage reference for Hold current Time duration of Inrush interval Gate control output source current Gate control output sink current Internal Pre-regulator output voltage Time constant of feedback filter Operative Temperature Range -40 VG = 0V, VCC = 13V VG = 8V, VCC = 13V IBYP = 1mA 2.5 EN = GND EN = 5.5V, VCC = 0 to 35V EN = 5.5V, VCC = 9V, VFB = 0V EN = GND, VCC = 9V, VFB = 0V CLOAD = 1000pF VCC > 20V 9 314 70 56 -100 DC only Test Conditions Min. 8 0 2 0.3 -60 0.1 0.4 0.7 11 345 77 4.5 64 -1.6 4.5 4 2 85 72 -1 ms mA mA V s C -30 1 0.9 1.2 13 380 86 Typ. Max. 35 0.8 5 Unit V V V V A A mA mA V mV mV IINR/IHOLD Inrush current to hold current ratio 3/8 STM802 TYPICAL CHARACTERISTICS Figure 1 : Power on Cycle (EN = Low) Figure 2 : Controlled by Enable (VCC = ON) 4/8 STM802 Figure 3 : Controlled by Enable (VCC = ON) 5/8 STM802 SO-8 MECHANICAL DATA DIM. A A1 A2 B C D E e H h L k ddd 0.1 5.80 0.25 0.40 mm. MIN. 1.35 0.10 1.10 0.33 0.19 4.80 3.80 1.27 6.20 0.50 1.27 8 (max.) 0.04 0.228 0.010 0.016 TYP MAX. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 MIN. 0.053 0.04 0.043 0.013 0.007 0.189 0.150 0.050 0.244 0.020 0.050 inch TYP. MAX. 0.069 0.010 0.065 0.020 0.010 0.197 0.157 0016023/C 6/8 STM802 Tape & Reel SO-8 MECHANICAL DATA mm. DIM. MIN. A C D N T Ao Bo Ko Po P 8.1 5.5 2.1 3.9 7.9 12.8 20.2 60 22.4 8.5 5.9 2.3 4.1 8.1 0.319 0.216 0.082 0.153 0.311 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.335 0.232 0.090 0.161 0.319 MIN. TYP. MAX. 12.992 0.519 inch 7/8 STM802 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners (c) 2003 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com 8/8 |
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