L3037 Datasheet | STMicroelectronics

FEATURES OF THE BORSCHT FUNCTION SOFT BATTERY REVERSAL WITH PROGRAMMABLE TRANSITION TIME (3 to 100ms) METERING PULSE INJECTION AND FILTERING WITH MINIMAL PONENTS COUNT (NO TRIMMING REQUIRED). PROTECTION RESISTOR MISMATCH PENSATION ON HOOK TRANSMISSION LOOP START/GROUND START FEATURE IND TEMP. RANGE: -40°C TO +85°C LOW POWER DISSIPATION IN ALL OPERATING MODES INTEGRATED ZERO CROSSING RELAY DRIVER INTEGRATED (NOISE-LESS) RING TRIP DETECTION VERY LOW NO. of STD TOLERANCE EXTERNAL PONENTS SELECT PART FOR U.S. APPLICATIONS (63d B TYP. LONG. BALANCE) SURFACE MOUNT PACKAGE (PLCC44 or BLOCK DIAGRAM PLCC44 PQFP44(10 x 10) ORDERING NUMBERS: L3037FN L3037QN PQFP44) INTEGRATED THERMAL PROTECTION PIN TO PIN PATIBLE WITH L3035/36 DESCRIPTION The L3037 subscriber line interface circuit is a bipolar device in 70V technology developed for central office / loop carrier and private applications. The L3037 is pin to pin and function patible with L3035/36. One particular pin (reserved in L3035/36) is now used for reverse polarity transition time programming. The line polarity transition is not affecting the AC signal transmission that can continue also during the line voltage transition.L3037 is available in two different package options: PLCC44 and PQFP44 (10 x 10mm). December 1997 1/22 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. L3037 PIN FUNCTIONALITY (PLCC44) No. 1 2 3 4 5 6 7 8 9 10 to14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 to 36 37 38 39 40 41 42 43 44 Name VCC ILTF RDC CF BASE BGND VREG STIP TIP VB RING SRING CRT ODET RGIN OGK GST D1 D0 LIM VSS REL CREV GREL CAC RS ZB VB Tx Rx ZAC TTXIN RTTX ACFD AGND IREF Function Supply input (+5V) Analog output (current source) Analog input (current input) Analog input (voltage input) Analog output (voltage source) Ground input (0V) Supply input (VREG) Analog input (voltage input) Analog output (voltage output) Supply input...