Smoke Detector Controller E520.32 Preliminary Information – Oct 09, 2012 Features Brief Functional Description • Designed for network addressable optical The device provides a high current driver for a smoke detectors transmitter LED and a high impedance I-V conversion • 2-wire programmable bus operation with for the photo current of the receiver diode. Optimized 8V ... 50V supply response of both amplifier and ADC allow short transmitter pulses while keeping high detection • Low quiescent current (88 µA) efficiency. The amplifier's band pass filter • Embedded 8-bit micro controller with characteristics remove noise from the signal. 4-KB FLASH (µ-code) and 128 Byte RAM Transmitter pulses and signal acquisition as well as • 28+4 Byte E²PROM for configuration data signal evaluation are controlled by the embedded micro controller allowing the user to take full control • Configurable 200mA LED driver over the system performance with the user defined • Configurable modulation current (240mA) program code running from FLASH memory. • Photo current input range: 1.5 ... 45 nA The configurable address allows bus operation with • Input bandpass filter: 0.45 .. 4.5 kHz up to 255 detectors on one bus. • Thermistor input • 4 digital general purpose IOs Ordering Information • JTAG debug and programming interface Product ID Temperature Range Package Minimum number of external components • E520.32 -55°C to +85°C SOIC14 • Complies to Russian norm NPB 58-97 Applications • Simplifies design of addressable smoke detectors required by legislation • Fully programmable smoke detectors with minimum of external components Typical Operating Circuit Detector module D5 LN24 C1: 100µF 10V DSUP LED1 S PD 2 4 s DIN 3 O 2 . 0 u n n 0 B L M LED L ) 2 l L LED2 a 5 n RED E o i t RV red p o VTSEN ( ϑ RT VTDRV LN0 (optional) This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice. ELMOS Semiconductor AG Data Sheet QM-No. 25DS0063E.02, 1 / 77 Smoke Detector Controller E520.32 Preliminary Information – Oct 09, 2012 Block Diagram and Application Example DSUP LN24 D5 Alarm Driver Supply/Reference Communication Transceiver C1 GPIO / PD JTAG LED1 AMP 10 bit 4 DIN ADC GPIO / JTAG LED LED 5 bit DAC Driver 8 bit uC 4KB FLASH RED RED 128B RAM AMP LED2 28B+4B E²PROM RED RV Driver VTSEN Oscillator ϑ RT POR VTDRV LN0 Fig. 1: Block Diagram Symbol Parameter PD SFH2500/FA LED1 SFH4500 LED2 WP710A10LSRD C1 tantalum capacitor 100 uF x 6V, typ B45196-H1107-M309 20% RV resistor 150k, typ B54101 2% RT thermistor 100k, typ B57891M0104 1% Table 1: Application Circuit Parameters (proposal) Pin Configuration LED 1 14 LN24 LN0 IO0 D5 IO1 RED IO2 DIN IO3 DSUP TEN VTDRV 7 8 VTSEN Fig. 2: Package top view, not to scale This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice. ELMOS Semiconductor AG Data Sheet QM-No. 25DS0063E.02, 2 / 77 Smoke Detector Controller E520.32 Preliminary Information – Oct 09, 2012 Pin Description No Name Type Description 1 LED A_O Transmitter LED driver output 2 LN0 S Negative bus / supply connection , Ground (reference potential) 3 D5 A_O Tank capacitor charging output 4 RED A_IO Indicator red LED driver output and alarm simulation input 5 DIN A_I Receiver diode current input 6 DSUP A_O Receiver diode supply output 7 VTDRV A_O Temperature half bridge driver output 8 VTSEN A_I Temperature measurement channel input 9 TEN D_I Test/debug enable; three level pad; pull down 10 IO3 D_IO General purpose IO 3 , if TEN=1 JTAG clock (TCK); pull up 11 IO2 D_IO General purpose IO 2 , if TEN=1 JTAG test mode select (TMS); pull up 12 IO1 D_IO General purpose IO 1 , if TEN=1 JTAG data input (TDI); pull up 13 IO0 D_IO General purpose IO 0 , if TEN=1 JTAG data output (TDO); pull up 14 LN24 HV_S Positive bus / supply connection Explanation of Types: A = Analog, D = Digital, S = Supply, I = Input, O = Output, B = Bidirectional, HV = High Voltage ESD: More details according this topic are described in the "ESD" chapter (ch. 2). This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice. ELMOS Semiconductor AG Data Sheet QM-No. 25DS0063E.02, 3 / 77 Smoke Detector Controller E520.32 Preliminary Information – Oct 09, 2012 1 Absolute Maximum Ratings Stresses beyond these absolute maximum ratings listed below may cause permanent damage to the device. These are stress ratings only; operation of the device at these or any other conditions beyond those listed in the operational sections of this document is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. All voltages referred to V(LN0). Currents flowing into terminals are positive, those drawn out of a terminal are negative. No. Description Condition Symbol Min Max Unit 1 Bus Supply voltage Continuous VLN24 -0.3 +50 V 2 Bus Supply voltage reverse polarity VLN24 -40 +50 V protection, current limitation via pin LN24 ≦ 70mA 3 Bus Supply voltage tPULSE < 100 ns, VLN24 +60 V tPULSE,PERIOD > 10 µs, max. 75 consecutive pulses (1 burst), tBURST,PERIOD > 300 ms, overvoltage protection 4 Voltage at digital I/O pins VDPIN -0.3 5.5 V 5 Input current at digital pins IDPIN -20 +20 mA 6 Voltage at analog pins VAPIN -0.3 VD5+0. V 3 7 Input current at analog pins IAPIN -20 +20 mA 8 Voltage at pin DIN VAPDIN -0.3 3.6 V 9 Junction temperature J -55 +90 °C 10 Ambient temperature AMB -55 +85 °C 1) 11 Storage temperature STO -55 +90 °C 12 Power dissipation average PTOT,AVG 20 mW Table 1-1: Maximum Ratings 1) Storage is not considering packing materials such as tapes, reels, dry packs, foils, etc. Please contact ELMOS for packing material specifications. Packaged devices before soldering: For moisture sensitive devices refer to JEDEC standard J-STD-033 for handling and using details. Storage at temperatures > 90°C for more than 96 h may affect the solderability of the devices. 2 Electro-Static Discharge (ESD) Description Condition Symbol Min Max Unit 1) ESD HBM Protection at all Pins VESD(HBM) -2 2 kV 2) ESD CDM Protection at all Pins VESD(CDM) -500 500 V 2) ESD CDM Protection at Edge Pins VESD(CDM)C -750 750 V 1) According to AEC-Q100-002 (HBM) chip level test: C = 100pF, R = 1.5kΩ 2) According to AEC-Q100-011 (CDM) chip level test This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice. ELMOS Semiconductor AG Data Sheet QM-No. 25DS0063E.02, 4 / 77 Smoke Detector Controller E520.32 Preliminary Information – Oct 09, 2012 3 Recommended Operating Conditions • Parameters are guaranteed within the range of recommended operating conditions unless otherwise specified. • Operation beyond recommended operating conditions is not qualified and may affect device reliability. • All voltages are referred to V(LN0) = 0V. • Currents flowing into the circuit have positive values. No. Description Condition Symbol Min Typ Max Unit 1 Bus supply voltage 1) VLN24 8 24 50 V 2 Operating ambient AMB,B -25 75 °C temperature 3 Extended operating ambient VD5 ≧ VTH,MON5 AMB,B,EXT -55 85 °C temperature 4 Photo diode capacitance 2 V ≦ VREVERSE ≦ CPD 11 25 pF 5 V 5 External tank capacitor pin D5 to LN0 C1 80 100 330 µF 6 D5 resistive load pin D5 to VTDRV RLOAD 1000 Ω 7 VTDRV sink pulse current t < 50 µs; IVTDRV 0 6 mA duty cycle < 10-3 8 DSUP source current IDSUP -10 0 µA Table 3-1: Recommended Operating Conditions 1) During bus communication VLN24 can decrease down to to 0V This document contains information on a new product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice. ELMOS Semiconductor AG Data Sheet QM-No. 25DS0063E.02, 5 / 77 Smoke Detector Controller E520.32 Preliminary Information – Oct 09, 2012 4 Electrical Characteristics 4.1 Analog Characteristics 4.1.1 Supply and References (VLN24 = 8V to 50V, Tamb = -25°C to +75°C, unless otherwise noted. Typical values are at VLN24 = 24V and Tamb = +25°C. Positive currents flow into the device pins.) No. Description Condition Symbol Min Typ Max Unit Supply Interface 1 Supply voltage, pin LN24 Normal operation VLN24 8 24 50 V 1) 2 Supply current, pin LN24 SUP_MODE = ILN24,0 88 µA 00b 3 Supply current, pin LN24 SUP_MODE= ILN24,1 130 µA 01b 4 Supply current, pin LN24 SUP_MODE= ILN24,2 180 µA 10b 5 Supply current, pin LN24 SUP_MODE= ILN24,3 220 µA 11b 6 LN24 monitor threshold VTH,LN24LOW,FALL 7.1 V voltage, falling edge, pin LN24 1) 7 LN24 monitor threshold VTH,LN24LOW,RISE 7.4 V voltage, rising edge, pin LN24 1) 8 LN24 monitor detection delay, falling edge, tLN24LOW 3.4 ms pin LN24 1) VLN24 ≦ 6.7 V 9 Output voltage, pin D5 ID5_CONST=-30µA, VD5 4.8 5.2 5.5 V SUP_MODE=00 b, No ext.capacitor 2) 10 Startup delay, pin D5 step 0V to 24V TSTARTDELAY 10 s on LN24 , C1 = 100uF 11 Supply monitor threshold VD5 rising VTH,MON5 4.4 4.64 4.8 V voltage 12 Supply monitor hysteresis VTH,MON5_HYST 20 120 mV Photo Diode Supply 13 Output voltage -0.1µA ≤ IDSUP VDSUP 4.3 4.6 VD5 V < 0µA Table 4.1.1-1: Supply Parameters 1) During bus communication VLN24 can be decreased down to 0 V.