EM MICROELECTRONIC-MARIN SA EM6352 Voltage Detector, High-Precision Description Features The EM6352 is an ultra-low current voltage detector available in a large variety of configurations and very small packages for maximum flexibility in all end-applications up to 125°C and using power supplies between 1.5V and 5.5V. This circuit monitors the supply voltage of any electronic system, and generates the appropriate reset signal without a delay time. The threshold defines the minimum allowed voltage which guarantees the good functionality of the system. As long as VDD stays above the threshold voltage, the output stays inactive. If VDD drops below VTH, the output goes active. The output is guaranteed to be in the correct state for VDD down to 0.8V. There are 12 reset threshold voltages starting as low as 1.31V and up to 4.63V. The EM6352 features three output types: active-low push-pull, active-low open-drain and active-high push-pull. Small SC70 and SOT23 packages as well as ultra-low supply current of 2.7µA make the EM6352 an ideal choice for portable and battery-operated devices. ! ! ! ! ! ! ! ! ! ! VDD ! RESET RESET EM6352 ! MPU, DSP ! ! GND GND ! GND ! * REXT for open-drain version only ! ! Pin Configuration (top view) RESET 1 (RESET) VDD 2 GND 3 ! RESET 1 (RESET) 5 NC GND SOT23-5L RESET 1 (RESET) VDD VDD 2 Voltage Reference SOT23-3L 4 GND 2 Mobile and cordless phones Modems Printers TV, VCR, Video sets GPS Toys Basestations NiCd cell battery Automotive systems Block Diagram 3 VDD 4 NC Active-high RESET push-pull No external components Immune to short negative VDD transients Guaranteed Reset valid down to 0.8V Threshold hysteresis: 2.1% of VTH Very small SOT23-5L, SOT23-3L, SC70-3L and SC70-4L (SC-82AB) packages Applications VDD * ±1.5% reset threshold accuracy 12 reset threshold voltages VTH: 4.63V, 4.4V, 3.08V, 2.93V, 2.63V, 2.26V, 2.2V, 1.8V, 1.66V, 1.57V, 1.38V, 1.31V 3 reset output options: Active-low RESET push-pull Active-low RESET open-drain Typical Application VDD Ultra-low supply current of 2.7µA (VDD=3.3V) Operating temperature range: -40°C to +125°C GND RESET (RESET) 3 NC SC70-4L (SC-82AB) - 1 + 3 VDD RESET (RESET) 2 SC70-3L GND Pin Description SOT23-5L 1 2 3 4, 5 SOT23-3L 1 3 2 - Pin SC70-4L SC70-3L 1 2 4 3 Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.I RESET Active-low RESET output. RESET remains low while VDD is below the reset threshold voltage. RESET Active-high RESET output. RESET remains high while VDD is below the reset threshold voltage. 2 3 1 - Function Name VDD GND N.C. Supply Voltage (5.5V max.) Ground Not connected. Not internally connected 1 www.emmicroelectronic.com EM6352 Ordering Information EM6352 X SP3B - 2.9 + Reset Output Type: X = Active-low /RES push-pull Y = Active-low /RES open-drain Z = Active-high RES push-pull RoHS Compliance: + = lead-free/green mold compliant [blank] = leaded Reset Threshold Voltage (VTH): 1.3 = 1.31V 2.26 = 2.26V 1.4 = 1.38V 2.6 = 2.63V 1.6 = 1.57V 2.9 = 2.93V 1.7 = 1.66V 3.1 = 3.08V 1.8 = 1.80V 4.4 = 4.40V 2.2 = 2.20V 4.6 = 4.63V Package: SP3B = SOT23-3, Tape&Reel 3000 pcs SP5B = SOT23-5, Tape&Reel 3000 pcs SC3B = SC70-3, Tape&Reel 3000 pcs SC4B = SC70-4, Tape&Reel 3000 pcs Note: subject to availability (see standard versions list below). Please give complete Part Number when ordering. Standard Versions (Top Marking) Part Number EM6352XSP3B-1.3 EM6352XSP3B-1.8 EM6352XSP3B-1.8+ EM6352XSP3B-2.2 EM6352XSP3B-2.2+ EM6352XSP3B-2.26 EM6352XSP3B-2.26+ EM6352XSP3B-2.6 EM6352XSP3B-2.6+ EM6352XSP3B-2.9 EM6352XSP3B-2.9+ EM6352XSP3B-4.6 EM6352XSP3B-4.6+ EM6352XSP5B-1.3 EM6352XSP5B-1.8 EM6352XSP5B-2.6 EM6352XSP5B-2.9 EM6352XSP5B-4.6 Top Marking Top 1) Marking with 4 Characters K3## K5## K7## K8## KE## 2) Part Number EM6352XSC3B-1.3 EM6352XSC3B-1.8 EM6352XSC3B-2.2 EM6352XSC3B-2.2+ EM6352XSC3B-2.6 EM6352XSC3B-2.9 EM6352XSC3B-2.9+ EM6352XSC3B-4.6 EM6352XSC3B-4.6+ EM6352YSP3B-2.26 EM6352YSP3B-2.6 EM6352YSP3B-2.9 EM6352YSC3B-2.6 EM6352YSC3B-4.6 EM6352YSC4B-1.3 EM6352YSC4B-2.9 EM6352YSC4B-3.1 AKAA AKAE BKAE AKAF BKAF AKAY BKAY AKAG BKAG AKAH BKAH AKAL BKAL AKAA AKAE AKAG AKAH AKAL Top 1) Marking K5## K8## Top Marking 2) with 4 Characters AKAA AKAE AKAF BKAF AKAG AKAH BKAH AKAL BKAL AKAZ AKAT AKAU AKAT AKAX AKAM AKAU AKAV 1) Top marking is the standard from 2006. No bottom marking exists. Where ## refers to the lot number (EM internal reference only) 2) Top marking with 4 characters is standard from 2003. For lead-free/green mold (RoHS) parts, the first letter of top marking with 4 characters begins with letter “B” instead of letter “A”. Bottom marking indicates the lot number. Standard Versions (samples) Part Number Part Number EM6352XSC3B-2.2+ EM6352XSP3B-2.6+ EM6352XSC3B-2.9+ EM6352XSP3B-2.9+ EM6352XSC3B-4.6+ EM6352XSP3B-4.6+ EM6352XSP3B-2.2 EM6352YSC4B-3.1 EM6352XSP3B-2.26+ EM6352YSP3B-2.2 Sample stock is generally held on standard versions only. Non standard versions have a 30,000 pieces minimum order quantity. Please contact factory for other versions not shown here and for availability of non standard versions. Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.I 2 www.emmicroelectronic.com EM6352 Absolute Maximum Ratings Parameter Voltage at VDD to GND Minimum voltage at any signal pin Maximum voltage at any signal pin Electrostatic discharge max. to MIL-STD-883C method 3015.7 with ref. to VSS Max. soldering conditions Storage Temperature Range Handling Procedures Symbol VDD Conditions -0.3V to +6V VMIN GND - 0.3V VMAX VDD + 0.3V VESD 2000V TMAX 250°C x 10s TSTG -65°C to +150°C This device has built-in protection against high static voltages or electric fields; however, anti-static precautions must be taken as for any other CMOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the voltage range. Unused inputs must always be tied to a defined logic voltage level. Operating Conditions Parameter Supply voltage (note 1) Operating Temperature Symbol Min Max Unit VDD 0.8 5.5 V TA -40 +125 °C Stresses above these listed maximum ratings may cause permanent damages to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction. Electrical Characteristics Unless otherwise specified: VDD= 0.8V to 5.5V, TA=+25°C (note 1). Parameter Symbol Conditions +25°C VDD=1.5V -40°C to +125°C Supply current (note 2) IDD VDD=3.3V VDD=5.0V Threshold voltage (note 3) VTH Min - +25°C - -40°C to +125°C - +25°C - -40°C to +125°C - Typ 2.1 2.7 3.2 Max 4.5 Unit 7 5.4 8.3 µA 6.3 9.6 EM6352 – 1.3 1.290 1.31 1.330 EM6352 – 1.4 1.359 1.38 1.401 EM6352 – 1.6 1.546 1.57 1.594 EM6352 – 1.7 1.635 1.66 1.685 EM6352 – 1.8 1.773 1.80 1.827 EM6352 – 2.2 2.167 2.20 2.233 EM6352 – 2.26 2.226 2.26 2.294 EM6352 – 2.6 2.591 2.63 2.669 EM6352 – 2.9 2.886 2.93 2.974 EM6352 – 3.1 3.034 3.08 3.126 EM6352 – 4.4 4.334 4.40 4.466 EM6352 – 4.6 4.561 4.63 V 4.699 Threshold voltage ∆VTH TA = -40°C to +125°C ppm/°C temperature coefficient ±50 ∆TA (note 4) Threshold hysteresis VHYS 2.1%•VTH V Note 1: Production tested at +25°C only. Over temperature limits are guaranteed by design, not production tested. VDD min=0.9V for active-high versions (EM6352Z). Note 2: RESET (RESET) open. Note 3: Threshold voltage is specified for VDD falling. Note 4: Typical variation ∆VTH of VTH at a given temperature TA is calculated as follows: ∆VTH (T = TA ) = ∆VTH × VTH × TA − 25°C ∆TA Example: -6 for version VTH=2.93V, variation at TA=70°C is equal to ∆VTH(70°C)=±50•10 x 2.93 x (70-25)=±6.59mV Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.I 3 www.emmicroelectronic.com EM6352 Electrical Characteristics (continued) Unless otherwise specified: VDD= 0.8V to 5.5V, TA=+25° C (note 1). Parameter Symbol Reset timeout period Propagation delay time VDD to RESET (RESET) delay tPOR Open-drain RESET output Voltage VOL tP Min Typ Max Unit VDD from 0V to VTH (typ)+15% (note 2) Conditions 9 500 1090 µs VDD drops from VTH (typ)+0.2V to VTH (typ)-0.2V (note 2) 2 130 255 µs IOL=100µA IOL=1.5mA - - 0.3 - - 0.3 VDD>5V IOL=3mA - - 0.3 VDD>1V IOL=100µA IOL=1.5mA - - 0.3 - - 0.3 VDD>1V VOL -40°C to +125°C VDD>2.5V -40°C to +125°C VDD>2.5V Push-pull RESET / RESET Output voltage VOH -40°C to +125°C VDD>5V IOL=3mA VDD>1V VDD>2.5V IOH=-30µA IOH=-1.5mA VDD>5V IOH=-3mA - - 0.3 0.8 - - 2 - - 4 - - Output leakage current ILEAK -40°C to +125°C, only for EM6352Y (open-drain) 0.5 Note 1: Production tested at +25°C only. Over temperature limits are guaranteed by design, not production tested. VDD min=0.9V for active-high version (EM6352Z). Note 2: RESET (RESET) open. V V µA Timing Waveforms tSEN VDD VTH Overdrive VHYS 0.8V t logic "1" tPOR RESET tP logic "0" t logic "1" RESET RESET logic "0" t Note 5: tSEN = Maximum Transient Duration. Please refer to figure on next page. Note 6: Overdrive = VTH- -VDD. Please refer to figure on next page. Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.I 4 www.emmicroelectronic.com EM6352 Typical Operating Characteristics (Typical values are at TA=+25°C unless otherwise noted, RESET or RESET open.) 7 300 6 250 5 [ uA ] VDD 5 . 0 V VDD 3 . 3 V 200 [ us ] 4 150 3 VDD 1. 5 V 2 100 50 1 0 -50 -25 0 25 50 75 0 -50 -25 100 125 0 25 [ °C ] 50 75 100 125 [ °C ] IDD vs. Temperature Propagation Time tP vs. Temperature 2500 400 350 2000 300 1500 [ us ] [ us ] 1000 250 Reset occurs above this line 200 150 100 500 50 0 -50 -25 0 25 50 75 0 100 125 1 10 [ °C ] 100 1000 [ mV ] Reset Timeout Period tPOR vs. Temperature Maximum Transient Duration tSEN vs. Overdrive VTH-VDD 8% 6% 4% 2% 0% -2% -4% -6% -8% -50 -25 0 25 50 75 100 125 [°C] Threshold Voltage Variation vs. Temperature (normalized) Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.I 5 www.emmicroelectronic.com EM6352 Package Information D E SOT23-3L C A1 A2 A B L H e SYMBOL A A1 A2 B C D E e e1 H L e1 MIN 0.89 0.013 0.95 0.37 0.085 2.80 1.20 TYP MAX 1.04 1.12 0.10 0.97 1.00 0.51 0.12 0.18 2.95 3.04 1.32 1.40 0.95 1.90 2.05 2.40 2.64 0.55 1.78 2.10 Dimensions are in mm D E1 SOT23-5L C A1 A2 A b E e SYM BOL A A1 A2 b C D E E1 e e1 L e1 M IN 0.90 0.05 0.90 0.35 0.08 2.80 2.60 1.50 L TYP M AX 1.30 1.45 0.08 0.15 1.15 1.30 0.50 0.20 2.90 3.00 2.80 3.00 1.75 0.95 1.90 0.45 Dimensions are in mm Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.I 6 www.emmicroelectronic.com EM6352 Package Information (continued) SC70-3L D b L HE E PIN 1 e e Q1 A2 A1 SC70-4L D e L HE E PIN 1 e1 b Q1 b1 A2 MIN MAX 0.65 BSC 1.80 2.20 0.25 0.40 1.15 1.35 1.80 2.40 0.10 0.40 0.80 1.00 0.00 0.10 0.80 1.10 0.10 0.18 0.10 0.30 NOTE: " All dimensions are in millimeters " Dimensions are inclusive of plating " Dimensions are exclusive of mold flash & metal burr " All specifications comply to EIAJ SC70 A e c SYMBOL e D b E HE Q1 A2 A1 A c L A A1 SYMBOL e e1 D b b1 E HE Q1 A2 A1 A c L MIN MAX 0.65 BSC 0.5 BSC 1.80 2.20 0.15 0.30 0.575 0.70 1.15 1.35 1.80 2.40 0.10 0.40 0.80 1.00 0.00 0.10 0.80 1.10 0.10 0.18 0.10 0.30 c NOTE: " All dimensions are in millimeters " Dimensions are inclusive of plating " Dimensions are exclusive of mold flash & metal burr " All specifications comply to EIAJ SC70 " Even though the width of pin 2 on SC70-4L is slightly larger than on socalled 4-pin SC-82AB, the footprint of SC70-4L package is compatible with the footprint of SC-82AB package from other suppliers, and thus suitable for pin-to-pin replacement. Please check footprint on PCB. Traceability for small packages Due to the limited space on the package surface, the bottom marking contains a limited number of characters that provide only partial information for lot traceability. Full information for complete traceability is however provided on the packing labels of the product at delivery from EM. It is highly recommended that the customer insures full lot traceability of EM product in his final product. EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in EM's General Terms of Sale located on the Company's web site. EM assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of EM are granted in connection with the sale of EM products, expressly or by implications. EM's products are not authorized for use as components in life support devices or systems. Product qualification is performed according to internal EM quality standards for industrial products. For any special requirement (eg. automotive grade) please contact EM Microelectronic-Marin S.A. Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.I 7 www.emmicroelectronic.com