PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7809 PT7M7803/7343 PT7M7803XT

PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits

Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features Discription · Precision supply-voltage monitor - 4.63V (PT7M7xxxL) The PT7M7xxx family microprocessor (µP) supervisory circuits are targeted to improve reliability and accuracy - 4.38V (PT7M7xxxM) of power-supply circuitry in µP systems. These devices - 3.08V (PT7M7xxxT) reduce the complexity and number of components - 2.93V (PT7M7xxxS) - 2.63V (PT7M7xxxR) required to monitor power-supply and battery functions. - 2.32V (PT7M7xxxZ) The main functions are: - 2.20V (PT7M7xxxY) 1. Asserting reset output during power-up, power-down - 4.00V (PT7M7xxxJ) and brownout conditions for µP system; 2. Detecting power failure or low-battery conditions with · 200ms reset pulse width a 1.25V threshold detector; · Debounced CMOS-compatible manual-reset input 3. Watchdog functions; (7811, 7812, 7823, 7825, 7342-7344) · Reset Output Signal for Watchdog and Power 4. Manual reset. Abnormal, Manual Reset · Reset Push-Pull output (PT7M7809 PT7M7809,7811,7823, Applications 7824,7825,7342,7345) · Power-supply circuitry in µP systems · Reset Open-Drain output (PT7M7803/7343 PT7M7803/7343) · Voltage monitor for power-fail or low battery warning · Guaranteed RESET/RESET valid at VCC = 1.0V Ordering Information No. 1 2 3 4 5 6 7 8 9 10 11 Part No PT7M7803XT PT7M7803XT PT7M7809XT PT7M7809XT PT7M7810XT PT7M7810XT PT7M7811XTA PT7M7811XTA PT7M7812XTA PT7M7812XTA PT7M7823XTA PT7M7823XTA PT7M7824XTA PT7M7824XTA PT7M7825XTA PT7M7825XTA PT7M7342XTA PT7M7342XTA PT7M7343XTA PT7M7343XTA PT7M7344XTA PT7M7344XTA Package SOT23-3 SOT23-5 SOT23-6 No. 12 13 14 15 16 17 18 19 20 21 22 Part No PT7M7345XTA PT7M7345XTA PT7M7811XTB PT7M7811XTB PT7M7812XTB PT7M7812XTB PT7M7803XDE PT7M7803XDE PT7M7809XDE PT7M7809XDE PT7M7810XDE PT7M7810XDE PT7M7811XDE PT7M7811XDE PT7M7812XDE PT7M7812XDE PT7M7823XDE PT7M7823XDE PT7M7824XDE PT7M7824XDE PT7M7825XDE PT7M7825XDE Package SOT23-6 SOT143 Die Form Note: lead free package is available by adding E at the end of each part no. For example: PT7M7803XTE PT7M7803XTE for SOT23-3 lead free package. Suffix: X - Monitored Voltage Suffix X L Reset Threshold(V) 4.36 PT0109L PT0109L(04/07) M 4.38 T 3.08 1 S 2.93 R 2.63 Z 2.32 Y 2.20 J 4.00 Ver:11 Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Function Comparison RESET output No. Part No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 PT7M7803XT PT7M7803XT PT7M7809XT PT7M7809XT PT7M7810XT PT7M7810XT PT7M7811XTA PT7M7811XTA PT7M7812XTA PT7M7812XTA PT7M7823XTA PT7M7823XTA PT7M7824XTA PT7M7824XTA PT7M7825XTA PT7M7825XTA PT7M7342XTA PT7M7342XTA PT7M7343XTA PT7M7343XTA PT7M7344XTA PT7M7344XTA PT7M7345XTA PT7M7345XTA PT7M7811XTB PT7M7811XTB PT7M7811XTB PT7M7811XTB PT7M7803XDE PT7M7803XDE PT7M7809XDE PT7M7809XDE PT7M7810XDE PT7M7810XDE PT7M7811XDE PT7M7811XDE PT7M7812XDE PT7M7812XDE PT7M7823XDE PT7M7823XDE PT7M7824XDE PT7M7824XDE PT7M7825XDE PT7M7825XDE Push-Pull Open-Drain - - - - RESET output (push-pull) - Manual Reset Input - - Power Fail Detector (1.25V) - - - - - - - - Watchdog Input - - - Block Diagram Block Diagram WDI Watchdog Transition Detector Watchdog Timer V cc Timebase for Reset & Watchdog MR Reset Generator RESET (RESET) Vcc V RST PFI PFO 1.25V PT0109L PT0109L(04/07) 2 Ver:11 Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Marking Information C od e 12 2 3 3 4 Part Number Year 4 1 Descr ip t ion Work Week Part Number Code Code 1 2 Part No. Code 1 2 Part No. Code 1 2 Part No. AA PT7M7809L PT7M7809L BC PT7M7803L PT7M7803L CE PT7M7342L PT7M7342L AB PT7M7809M PT7M7809M BD PT7M7803M PT7M7803M CF PT7M7342M PT7M7342M PT7M7803T PT7M7803T AC PT7M7809T PT7M7809T BE CG PT7M7342T PT7M7342T AD PT7M7809S PT7M7809S BF PT7M7803S PT7M7803S CH PT7M7342S PT7M7342S AE PT7M7809R PT7M7809R BG PT7M7803R PT7M7803R CI PT7M7342R PT7M7342R PT7M7803Z PT7M7803Z AF PT7M7809Z PT7M7809Z BH CJ PT7M7342Z PT7M7342Z AG PT7M7809Y PT7M7809Y BI PT7M7803Y PT7M7803Y CK PT7M7342Y PT7M7342Y sd PT7M7809J PT7M7809J jm PT7M7803J PT7M7803J sk PT7M7342J PT7M7342J AH PT7M7810L PT7M7810L BJ PT7M7823L PT7M7823L CL PT7M7343L PT7M7343L PT7M7823M PT7M7823M CM PT7M7343M PT7M7343M PT7M7823T PT7M7823T CN PT7M7343T PT7M7343T AI PT7M7810M PT7M7810M BK AJ PT7M7810T PT7M7810T BL AK PT7M7810S PT7M7810S BM PT7M7823S PT7M7823S CO PT7M7343S PT7M7343S PT7M7823R PT7M7823R AL PT7M7810R PT7M7810R BN CP PT7M7343R PT7M7343R AM PT7M7810Z PT7M7810Z BO PT7M7823Z PT7M7823Z CQ PT7M7343Z PT7M7343Z AN PT7M7810Y PT7M7810Y BP PT7M7823Y PT7M7823Y CR PT7M7343Y PT7M7343Y PT7M7810J PT7M7810J sh PT7M7823J PT7M7823J sl PT7M7343J PT7M7343J AO PT7M7811L PT7M7811L BQ PT7M7824L PT7M7824L CS PT7M7344L PT7M7344L AP PT7M7811M PT7M7811M BR PT7M7824M PT7M7824M CT PT7M7344M PT7M7344M AQ PT7M7811T PT7M7811T BS PT7M7824T PT7M7824T CU PT7M7344T PT7M7344T AR PT7M7811S PT7M7811S BT PT7M7824S PT7M7824S CV PT7M7344S PT7M7344S AS PT7M7811R PT7M7811R BU PT7M7824R PT7M7824R CW PT7M7344R PT7M7344R AT PT7M7811Z PT7M7811Z BV PT7M7824Z PT7M7824Z CX PT7M7344Z PT7M7344Z PT7M7811Y PT7M7811Y BW PT7M7824Y PT7M7824Y CY PT7M7344Y PT7M7344Y PT7M7824J PT7M7824J se AU sf PT7M7811J PT7M7811J si sm PT7M7344J PT7M7344J AV PT7M7812L PT7M7812L BX PT7M7825L PT7M7825L CZ PT7M7345L PT7M7345L AW PT7M7812M PT7M7812M BY PT7M7825M PT7M7825M DA PT7M7345M PT7M7345M PT7M7812T PT7M7812T BZ PT7M7825T PT7M7825T DB PT7M7345T PT7M7345T AY PT7M7812S PT7M7812S CA PT7M7825S PT7M7825S DC PT7M7345S PT7M7345S AZ PT7M7812R PT7M7812R CB PT7M7825R PT7M7825R DD PT7M7345R PT7M7345R BA PT7M7812Z PT7M7812Z CC PT7M7825Z PT7M7825Z DE PT7M7345Z PT7M7345Z BB PT7M7812Y PT7M7812Y CD PT7M7825Y PT7M7825Y DF PT7M7345Y PT7M7345Y sg PT7M7812J PT7M7812J sj PT7M7825J PT7M7825J sn PT7M7345J PT7M7345J AX Note: lead free package is available by adding line above the first code. For example: Part Number code of PT7M7809LE PT7M7809LE is AA. PT0109L PT0109L(04/07) 3 Ver:11 Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Information Pin Configuration SOT23-3 PT7M7803 PT7M7803 PT7M7809 PT7M7809 1 SOT143 GND 1 VCC 2 GND 2 VCC 2 RESET 1 GND 3 PT7M7812 PT7M7812 PT7M7811 PT7M7811 PT7M7810 PT7M7810 RESET VCC 4 1 GND MR 3 2 RESET VCC 4 MR 3 3 RESET SOT23-5 PT7M7812 PT7M7812 PT7M7811 PT7M7811 1 GND 2 3 RESET MR 5 4 1 GND 2 NC VCC NC 3 RESET PT7M7823 PT7M7823 1 RESET 2 3 MR 5 4 1 RESET 2 WDI 5 MR 4 PT7M7824 PT7M7824 GND VCC VCC RESET 5 VCC WDI 4 1 RESET 2 GND 3 PT7M7825 PT7M7825 GND 3 RESET VCC 5 MR 4 SOT23-6 PT7M7342 PT7M7342 PT7M7343 PT7M7343 PT7M7344 PT7M7344 PT7M7345 PT7M7345 1 RESET 6 1 VCC RESET 6 1 VCC RESET 6 2 GND MR 5 2 GND MR 5 2 GND RESET 5 3 PT0109L PT0109L(04/07) VCC PFI PFO 4 3 PFI PFO 4 3 PFI PFO 4 4 Ver:11 Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description Pin Na me Type De s cr ipt ion MR I M a nua l-R e s e t : (CM OS). Active low. Pull low to force a reset. Reset remains asserted for the duration of the Reset Timeout Period after MR transitions from low to high. Leave unconnected or connected to VCC if not used. Vcc Power Powe r Supply: Reset is asserted when VCC drops below the Reset Threshold Voltage (VRST). Reset remains asserted until VCC rises above VRST and keep asserted for the duration of the Reset Timeout Period (tRS) once VCC rises above VRST. GND Ground Gr ound R e fe r e nce for all signals PFI I Powe r-Fa il Volt a ge M onit or I nput . When PFI VTH(MAX) for PT7M7803 PT7M7803 and PT7M7343 PT7M7343 VPFI varies from 1.5V and 1.0V - µA V V V V µA µA k * Valid for both RESET and RESET. VRST is voltage threshols when VCC falls from high to low. VRN is nominal reset threshold voltage. * WDI is internally serviced within the watchdog period if WDI is left unconnected. PT0109L PT0109L(04/07) 12 Ver:11 Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| AC Electrical Characteristics AC Electrical Characteristics Sym Description tRS Reset Pulse Width tWD Watchdog Timeout Period tMR MR Pulse Width t Test Conditions Min Typ Max Units MR from low to High, TA=25C 140 200 400 ms WDI and MR tied to VCC, VCC > VRN + 5% TA=25C 0.9 1.6 2.25 s MR to RESET Delay V = 5.0V 250 WDI Pulse Width tWP µs 1 50 ns ns Watchdog Timing Diagram VCC V RST VRST tRS tWD tRS tRS RESET RESET tWP tMD WDI tMR MR PT0109L PT0109L(04/07) 13 Ver:11 Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Mechanical Information SOT23-3 1.80 2.00 0.45 0.60 1.20 1.40 2.20 2.64 0.55 0.38 0.51 0.95 0-8 o 2.80 3.04 0.09 0.18 0.90 1.12 0.013 0.102 Note: 1) Controlling dimensions in millimeters. X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 2) Ref: JEDEC TO-236AB 2) Ref: JDDEC TO-236AB SOT23-5 1.90 0.35 0.80 1.50 2.50 1.70 3.10 0-10o 0.30 0.50 0.95 0.20 0.55 2.80 3.00 0.09 0.20 0.90 1.10 0.01 0.13 X.XX X.XX PT0109L PT0109L(04/07) DENOTES DIMENSIONS IN MILLIMETERS Note: 1) Controlling dimensions in millimeters. 2) Ref: JDDEC MO-178AA MO-178AA Ref: JEDEC MO-178AA MO-178AA 14 Ver:11 Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| SOT23-6 1.90 1.50 1.70 2.50 3.10 0.3 5 0.30 0.50 0.95 o 0-10 2.80 3.10 0.20 0.55 0.09 0.20 0.90 1.10 0.01 0.13 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS Note: 1) Controlling dimensions in millimeters. 2) Ref: JDDEC MO-178AB MO-178AB 2) Ref: JEDEC MO-178AB MO-178AB PT0109L PT0109L(04/07) 15 Ver:11 Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| SOT143 2.80 3.04 0.085 0.180 0.45 0.60 1.92 0.55 1.20 1.40 2.10 2.64 0.20 0.37 0.51 0.76 0.94 0.013 0.10 0.89 1.12 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Note: 1) Controlling dimensions in millimeters. 2) Dimensions are inclusive of plating. PT0109L PT0109L(04/07) 16 Ver:11 Data Sheet PT7M7803/7809-7812/7823-7825/7342-7345 PT7M7803/7809-7812/7823-7825/7342-7345 µP Supervisor Circuits |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Notes Pericom Technology Inc. Email: support@pti.com.cn Web-Site: www.pti.com.cn, www.pti-ic.com China: No. 20 Building, 3/F, 481 Guiping Road, Shanghai, 200233, China Tel: (86)-21-6485 0576 Fax: (86)-21-6485 2181 Asia Pacific: Unit 1517, 15/F, Chevalier Commercial Centre, 8 Wang Hoi Rd, Kowloon Bay, Hongkong Tel: (852)-2243 3660 Fax: (852)- 2243 3667 U.S.A.: 3545 North First Street, San Jose, California 95134, USA Tel: (1)-408-435 0800 Fax: (1)-408-435 1100 Pericom Technology Incorporation reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. Pericom Technology does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom Technology product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom Technology Incorporation. PT0109L PT0109L(04/07) 17 Ver:11