SS8037 SSC | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 9

Technical content

www.SiliconStandard.com 1 of 9 Microprocessor Reset IC

FEATURES

Precision monitoring of +3V, +3.3V, and +5V power-supply voltages Fully specified over temperature Available in three output configurations Push-pull RESET output (SS8037L) Push-pull RESET output (SS8037H) Open-drain RESET output (SS8038L) Power-on reset pulse width of 140ms min Supply current of 10µA Guaranteed reset valid to VCC = +1V Power supply transient immunity No external components SOT23-3 package

APPLICATIONS

Critical µP and µC power monitoring Portable / battery-powered equipment Automotive

DESCRIPTION

The SS8037/8 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit rel iability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V - po w- ered circuits. These circuits perform a single function: they assert a reset signal whenever the V CC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset thresh old. Reset thresholds suitable for operation with a variety of supply voltages are available. The SS8038L has an open-drain output stage, while the SS8037H/L have push-pull outputs. The SS8038L’s open-drain RESET output requires a pull -up resistor that can be connected to a voltage higher than VCC. The SS8037L has an active-low RESET output, while the SS8037H has an active-high RESET output. The reset comparator is designed to ignore fast tra nsients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V. Low supply current makes the SS8037/8 ideal for use in portable equipment. They are available in a 3-pin SOT23-3 package.PIN CONFIGURATION TYPICAL APPLICATION RESET INPUT GND µ P V CC RESET (RESET) GND V CC R PULL - UP V CC * SS8038 ONLY SOT23-3 1 2 RESET INPUT GND µ P V CC RESET (RESET) GND SS8037/8 V CC This device is supplied with Pb-free lead finish (second-level interconnect). SS8037/8(G) 10/6/2004 Rev.2.2 0

PART NUMBER THRESHOLD VOLTAGE OPTION SS8037L : Push-Pull Active Low Output * xxx specifies the threshold voltage. SS8037H : Push-Pull Active High Output e.g. 263 denotes the 2.63V threshold voltage. SS8038L : Open-Drain Output www.SiliconStandard.com 2 of 9

ORDERING INFORMATION

1 : RESET GND VCC 2 : RESET VCC GND 3 : GND RESET VCC 4 : GND V CC RESET 5 : VCC GND RESET 6 : VCC RESET GND *RESET for SS8037H TOP MARK PAR T/SU FFIX RESET THRESH OLD (V) OUTPUT TYPE SS8038L463GT71 4.63 Open-Drain 689Fx SS8038L438GT71 4.38 Open-Drain 689Ex SS8038L400GT71 4.00 Open-Drain 689Dx SS8038L308GT71 3.08 Open-Drain 689Cx SS8038L293GT71 2.93 Open-Drain 689Bx SS8038L263GT71 2.63 Open-Drain 689Ax SS8037H463GT71 4.63 Push -Pull RESET 688Lx SS8037H438GT71 4.38 Push -Pull RESET 688Kx SS8037H400GT71 4.00 Push -Pull RESET 688Jx SS8037H308GT71 3.08 Push -Pull RESET 688Ix SS8037H293GT71 2.93 Push -Pull RESET 688Hx SS8037H263GT71 2.63 Push -Pull RESET 688Gx SS8037L463GT71 4.63 Push-Pull RESET 688Fx SS8037L438GT71 4.38 Push-Pull RESET 688Ex SS8037L400GT71 4.00 Push-Pull RESET 688Dx SS8037L308GT71 3.08 Push-Pull RESET 688Cx SS8037L293GT71 2.93 Push-Pull RESET 688Bx SS8037L263GT71 2.63 Push-Pull RESET 688Ax Note: T 71: SOT23 pin-out option 1 Not all p roduct options a re released for mass production, please contact Silicon Standard for availability. SELECTION GUIDE AND MARKING INFORMATION SS8037/8(G) 10/6/2004 Rev.2.20 GT7: Pb-free SOT-23-3

www.SiliconStandard.com 3 of 9 PART/SUFFIX RESET THRESHOLD (V) OUTPUT TYPE TOP MARK SS8038L463GT72 4.63 Open-Drain 687Fx SS8038L438GT72 4.38 Open-Drain 687Ex SS8038L400GT72 4.00 Open-Drain 687Dx SS8038L308GT72 3.08 Open-Drain 687Cx SS8038L293GT72 2.93 Open-Drain 687Bx SS8038L263GT72 2.63 Open-Drain 687Ax SS8037H463GT72 4.63 Push-Pull RESET 686Lx SS8037H438GT72 4.38 Push-Pull RESET 6 688Kx SS8037H400GT72 4.00 Push-Pull RESET 686Jx SS8037H308GT72 3.08 Push-Pull RESET 686Ix SS8037H293GT72 2.93 Push-Pull RESET 686Hx SS8037H263GT72 2.63 Push-Pull RESET 686Gx SS8037L463GT72 4.63 Push-Pull RESET 686Fx SS8037L438GT72 4.38 Push-Pull RESET 686Ex SS8037L400GT72 4.00 Push-Pull RESET 686Dx SS8037L308GT72 3.08 Push-Pull RESET 686Cx SS8037L293GT72 2.93 Push-Pull RESET 686Bx SS8037L263GT72 2.63 Push-Pull RESET 686Ax Note: T72: SOT23 pin-out option 2 Not all product options are released for mass production, please contact Silicon Standard for availability. SELECTION GUIDE AND MARKING INFORMATION (cont.) PART/SUFFIX RESET THRESHOLD (V) OUTPUT TYPE SS8038L463GT73 4.63 Open-Drain 691Fx SS8038L438GT73 4.38 Open-Drain 691Ex SS8038L400GT73 4.00 Open-Drain 691Dx SS8038L308GT73 3.08 Open-Drain 691Cx SS8038L293GT73 2.93 Open-Drain 691Bx SS8038L263GT73 2.63 Open-Drain 691Ax SS8037H463GT73 4.63 Push -Pull RESET 690Lx SS8037H438GT73 4.38 Push -Pull RESET 690Kx SS8037H400GT73 4.00 Push -Pull RESET 690Jx SS8037H308GT73 3.08 Push -Pull RESET 690Ix SS8037H293GT73 2.93 Push -Pull RESET 690Hx SS8037H263GT73 2.63 Push -Pull RESET 690Gx SS8037L463GT73 4.63 Push-Pull RESET 690Fx SS8037L438GT73 4.38 Push-Pull RESET 690Ex SS8037L400GT73 4.00 Push-Pull RESET 690Dx SS8037L308GT73 3.08 Push-Pull RESET 690Cx SS8037L293GT73 2.93 Push-Pull RESET 690Bx SS8037L263GT73 2.63 Push-Pull RESET 690Ax Note: T73: SOT23 pin-out option 3 Not all product options are released for mass production, please contact Silicon Standard for availability. SS8037/8(G) 10/6/2004 Rev.2.20

www.SiliconStandard.com 4 of 9 ABSOLUTE MAXIMUM RATINGS All terminal voltages with respect to GND Continuous Power Dissipation (T A = +70°C) 3-Pin SOT23 (derate 4mW/°C above +70°C)….320mW Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V for 463/438/400 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263 version.) (Note 1) PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS TA = 0°C +70°C 1.0 5.5 VCC Range V VCC<5.5V, 803xx463/438/400x 22 30 Supply Current (SOT-23) ICC T A = -40°C +105°C VCC<3.6V, 803xx308/293/263x 10 23 µA TA = +25°C 4.56 4.63 4.70 TA = -40°C to +85°C 4.50 4.75 SS803xx463x TA = +85°C to +105°C 4.40 4.86 TA = +25°C 4.31 4.38 4.45 TA = -40°C to +85°C 4.25 4.50 SS803xx438x TA = +85°C to +105°C 4.16 4.56 TA = +25°C 3.93 4.00 4.06 TA = -40°C to +85°C 3.89 4.10 SS803xx400x TA = +85°C to +105°C 3.80 4.20 TA = +25°C 3.04 3.08 3.11 TA = -40°C to +85°C 3.00 3.15 SS803xx308x TA = +85°C to +105°C 2.92 3.23 TA = +25°C 2.89 2.93 2.96 TA = -40°C to +85°C 2.85 3.00 SS803xx293x TA = +85°C to +105°C 2.78 3.08 TA = +25°C 2.59 2.63 2.66 TA = -40°C to +85°C 2.55 2.70 Reset Threshold VTH SS803xx263x TA = +85°C to +105°C 2.50 2.76 V SS8037/8(G) 10/6/2004 Rev.2.20

www.SiliconStandard.com 5 of 9 ELECTRICAL CHARACTERISTICS (Cont.) (VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V for 463/438/400 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263 version.) (Note 1) PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS Reset Threshold Tempco 40 ppm/°C VCC to Reset Delay (Note 2) VCC = VTH to (VTH – 100mV) 7 µs VCC = VTH max, SS803xx463/438/400 280 640 Reset Active Timeout Period VCC = VTH max, SS803xx308/293/263 140 550 ms RESET Output Current Low (push-pull active low, and open-drain active-low, SS8037L and SS8038L) IOL VCC = 2.5V, V RESET = 0.5V 8 mA VCC = 5V, V RESET = 4.5V, SS8037L463/438/400 4.5 VCC = 3.3V, V RESET = 2.8V, SS8037L308/293 3 RESET Output Current High (push-pull active low, SS8037L) IOH VCC = 3V, V RESET = 2.5V, SS8037L263 2 mA VCC = 5V, VRESET = 0.5V, SS8037H463/438/400 16 VCC = 3.3V, VRESET = 0.5V, SS8037H308/293 12 RESET Output Current Low (push-pull active high, SS8037H) IOL VCC = 3V, VRESET = 0.5V, SS8037H263 10 mA RESET Output Current High (push-pull active high, SS8037H) IOH V CC = 2.5V, VRESET = 2V 2 mA RESET Open-Drain Output Leakage Current (SS8038L) VCC > VTH, RESET de-asserted 1 µA Note 1: Production testing done at TA = +25°C; limits over temperature guaranteed by design. Note 2:RESET output is for SS8037L/38L; RESET output is for SS8037H. SS8037/8(G) 10/6/2004 Rev.2.20

www.SiliconStandard.com 6 of 9 TYPICAL PERFORMANCE CHARACTERISTICS (VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V for 463/438/400 versions, VCC= 3.3V for 308/293 versions, and VCC = 3V for 263 version.) Supply Current vs.Temperature (No Load) -40 -20 0 20 40 60 80 Temperature (°C) Supply Current (µA) 803xx463/438/400, Vcc=5V 803xx308/293/263, Vcc=3.3V 803xxx463/438/400/308/293/263, Vcc=1V Power-down Reset Delay vs. Temperature (803xx308/293/263) -40 -20 0 20 40 60 80 Temperature (°C) Power-down Reset Delay (us) VOD = VTH - VCC VOD = 10mV VOD = 20mV VOD = 100mV VOD = 200mV 0 100 120 140 -40 -20 0 20 40 60 80 Temperature (°C) Power-Down Reset Delay (u s) VOD = VTH - VCC VOD = 10mV VOD = 20mV VOD = 100mV Normalized Reset Threshold vs. Temperature 0.988 0.99 0.992 0.994 0.996 0.998 1.002 -40 -20 0 20 40 60 80 Temperature (°C) Normalized Threshold Power-down Reset Delay vs. Temperature (803xx463/438/400) Power-up Reset Timeout vs. Temperature 100 200 300 400 500 600 -40 -20 0 20 40 60 80 Temperature (°C) Power-up Reset Timeout (ms) 803xx308/293/263 803xx463/438/400 SS8037/8(G) 10/6/2004 Rev.2.20

1 GND Ground

rises above the reset threshold. Figure 1. Maximum Transient Duration With out duration negative-going VCC transients (glitches). the magnitude indicated (reset co mparator ove rdrive). additional transient immunity. no longer sinks current — it becomes an open ci rcuit. nected to RESET can drift to undetermined vol tages. µP and other circuitry is inoperative with VCC below 1V. enough to pull RESET to ground.

www.SiliconStandard.com 9 of 9 SS8037/8(G) 10/6/2004 Rev.2.20 Information furnished by Silicon Standard Corporation is believed to be accurate and reliable. However, Silicon Standard Corporation makes no guarantee or warranty, express or implied, as to the reliability, accuracy, timeliness or completeness of such information and assumes no responsibility for its use, or for infringement of any patent or other intellectual property rights of third parties that may result from its use. Silicon Standard reserves the right to make changes as it deems necessary to any products described herein for any reason, including without limitation enhancement in reliability, functionality or design. No license is granted, whether expressly or by implication, in relation to the use of any products described herein or to the use of any information provided herein, under any patent or other intellectual property rights of Silicon Standard Corporation or any third parties. SOT 23 (T7) Package Note: 1.Package body sizes exclude mold flash protrusions or gate burrs 2.Tolerance ±0.1000 mm (4mil) unless otherwise specified 3.Coplanarity: 0.1000mm 4.Dimension L is measured in gage plane DIMENSIONS IN MILLIMETERS SYMBOLS MIN NOM MAX A 1.00 1.10 1.30 A1 0.00 ----- 0.10 A2 0.70 0.80 0.90 b 0.35 0.40 0.50 C 0.10 0.15 0.25 D 2.70 2.90 3.10 E 1.40 1.60 1.80 H 2.60 2.80 3.00 Θ 1 1º 5º 9º H D e E L C θ 1 b A H D e E L C θ 1 b A PHYSICAL DIMENSIONS Feed Direction