STM802BDR

STM802 SOLENOID CONTROLLER IC ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 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 2µs TYP.) SO-8 PACKAGE 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 ) s ( ct ORDERING CODES Type Temperature Range STM802BD STM802BDR -40 to 85 °C -40 to 85 °C r P e u d o SO-8 c u d ) s t( 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. e t le o r P o s b O - Package Comments SO-8 (Tube) SO-8 (Tape & Reel) 100 parts per tube / 20 parts per box 2500 parts per reel t e l o s b O October 2003 1/8 STM802 BLOCK DIAGRAM AND SCHEMATIC CIRCUIT c u d PIN CONFIGURATION e t le ) s ( ct PlN N° t e l o 1 s b O o s b O - u d o r P e PIN DESCRIPTION SYMBOL TST (Note 1) 2 VCC 3 4 5 6 7 8 BYP EN PWMG LING FB GATE NAME AND FUNCTION Test Input Supply Voltage Bypass capacitor Enable Input Switch Ground Linear Ground FeedBack Gate Control Output Note 1: The TST pin is for testing purpose only. Must be left FLOATING for normal operation. 2/8 o r P ) s t( STM802 TRUTH TABLES FOR ENABLE PIN EN DEVICE LOW HIGH FLOAT 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 Parameter Value Unit Supply Voltage -0.5 to 40 V -0.5 to 7 V ± 20 mA VI DC Input Voltage of EN, FB IIK DC Input Diode Current IOK DC Output Diode Current −20/+5 mA PD Maximum Power Dissipation 500 mW TL Lead Temperature (10sec) 300 TSTG Storage Temperature Range ) s t( °C -65 to 150 c u d °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. o r P ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING CONDITIONS (Unless otherwise noted. Typical values are at TA = 25°C) Symbol Parameter VCC Operative Supply Voltage Range VIL Low Level Input Thresholds of Enable VIH High Level Input Thresholds of Enable VHYST DC only so Hysteresis of Enable Input IIN Input Leakage Current of Enable IQ Quiescent Supply Current ICC Supply Current VCLAMP e t le Test Conditions ) s ( ct u d o Gate drive voltage clamp b O - EN = GND EN = 5.5V, VCC = 0 to 35V EN = 5.5V, VCC = 9V, VFB = 0V Min. Max. Unit 8 35 V 0 0.8 V 2 5 V -60 0.1 -30 1 µA µA 0.4 0.9 mA 0.7 1.2 mA 0.3 -100 EN = GND, VCC = 9V, VFB = 0V CLOAD = 1000pF V 9 11 13 V V1 Voltage reference for Inrush current 314 345 380 mV V2 Voltage reference for Hold current 70 77 86 mV r P e t e l o VCC > 20V Typ. IINR/IHOLD Inrush current to hold current ratio 4.5 TINR Time duration of Inrush interval IGH Gate control output source current VG = 0V, VCC = 13V Gate control output sink current VG = 8V, VCC = 13V Internal Pre-regulator output voltage IBYP = 1mA s b O IGL VBYP TC Time constant of feedback filter TOP Operative Temperature Range 56 2.5 -40 64 72 ms -1.6 -1 mA 4.5 mA 4 V 2 µs 85 °C 3/8 STM802 TYPICAL CHARACTERISTICS Figure 1 : Power on Cycle (EN = Low) c u d Figure 2 : Controlled by Enable (VCC = ON) e t le ) s ( ct u d o r P e t e l o s b O 4/8 o s b O - o r P ) s t( STM802 Figure 3 : Controlled by Enable (VCC = ON) c u d e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O 5/8 STM802 SO-8 MECHANICAL DATA mm. DIM. MIN. TYP inch MAX. MIN. TYP. MAX. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 h 0.25 0.50 0.010 L 0.40 1.27 0.016 k e t le 8˚ (max.) ddd 0.1 ) s ( ct o s b O - Pr od uc ) s t( 0.244 0.020 0.050 0.04 u d o r P e t e l o s b O 0016023/C 6/8 STM802 Tape & Reel SO-8 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. 330 13.2 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T MAX. 0.504 0.519 22.4 0.882 Ao 8.1 8.5 0.319 0.335 Bo 5.5 5.9 0.216 Ko 2.1 2.3 0.082 Po 3.9 4.1 0.153 ) s t( P 7.9 8.1 0.311 0.232 P e let ro ) s ( ct c u d 0.090 0.161 0.319 o s b O - u d o r P e t e l o s b O 7/8 STM802 c u d e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O 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. 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