PT7M7809TUWF

PT7M7803/7809-7812/7823-7825 μP Supervisor Circuits Features Description  Precision supply-voltage monitor - 4.63V (PT7M78xxL) - 4.38V (PT7M78xxM) - 3.08V (PT7M78xxT) - 2.93V (PT7M78xxS) - 2.63V (PT7M78xxR) - 2.32V (PT7M78xxZ) - 2.20V (PT7M78xxY) - 4.00V (PT7M78xxJ) - 2.25V (PT7M78xxK) - 2.80V (PT7M78xxG)  200ms reset pulse width  Debounced CMOS-compatible manual-reset input (7811, 7812, 7823, 7825)  Reset Output Signal for Watchdog and Power Abnormal, Manual Reset  Reset Push-Pull output (PT7M7809,7811,7823, 7824,7825)  Reset Open-Drain output (PT7M7803)  Voltage monitor for power-fail or low battery warning  Guaranteed RESET/RESET valid at VCC=1.0V The PT7M78xx family microprocessor (P) supervisory circuits are targeted to improve reliability and accuracy of power-supply circuitry in P systems. These devices reduce the complexity and number of components required to monitor power-supply and battery functions. The main functions are: 1. Asserting reset output during power-up, powerdown and brownout conditions for P system. 2. Watchdog functions 3. Manual reset. Applications      Power-supply circuitry in P systems Networking Security System Server/Storage Embedded System Function Comparison Table Part No. 1 2 3 4 5 6 7 8 PT7M7803 PT7M7809 PT7M7810 PT7M7811 PT7M7812 PT7M7823 PT7M7824 PT7M7825 RESET output Push-Pull Open-Drain       RESET output (push-pull)     All trademarks are property of their respective owners. 2017-04-0010 Manual Reset Input     www.diodes.com 1 Watchdog Input   - 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 Pin Configuration SOT23-3/SC70-3 PT7M7803 PT7M7809 1 1 GND 3 RESET V CC 2 PT7M7812 PT7M7811 PT7M7810 GND V CC 2 SOT143-4 1 GND 2 RESET V CC 4 1 GND MR 3 2 RESET V CC 4 MR 3 3 RESET SOT23-5 PT7M7812 PT7M7811 1 GND 2 NC 3 RESET V CC MR 5 4 1 GND 2 NC 3 RESET PT7M7823 1 RESET 2 GND 3 MR V CC WDI V CC 5 MR 4 PT7M7824 5 4 1 RESET 2 GND 3 RESET V CC WDI PT7M7825 5 4 1 RESET 2 GND 3 RESET V CC 5 MR 4 Pin Description All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 2 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 Pin Type Description MR I Manual-Reset: (CMOS). 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 Supply Voltage. Reset is asserted when VCC drops below the Reset Threshold Voltage (V RST). 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 Reference for all signals. WDI I Watchdog Input (CMOS). If WDI remains high or low for the duration of the watchdog timeout period (tWD), the internal watchdog timer trigger a reset output. Floating WDI or connecting WDI to a highimpedance three-state buffer disables the watchdog feature. The internal watchdog timer clears whenever reset is asserted or WDI occurs a rising or falling edge. RESET O Active-Low Reset Output (Push-Pull or Open-Drain). It goes low when Vcc is below the reset threshold. It remains low for about 200ms after one of the following occurs: Vcc rises above the reset threshold (VRST), the watchdog triggers a reset, or MR goes from low to high. RESET O The inverse of RESET, active high. Whenever RESET is high, RESET is low. NC - No connection. Block Diagram PT7M7823/24/25 Block Diagram Watchdog Transition Detector WDI Watchdog Timer (PT7M7823/24) VCC Timebase for Reset & Watchdog (PT7M7823/ 24/25) MR (PT7M7823/25) Reset Generator VCC RESET RESET (PT7M7824/ 25) VRST All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 3 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 PT7M7803/09/10/11/12 Block Diagram VCC Timebase for Reset MR (PT7M7811/12) Reset Generator VCC (PT7M7803/ /09/11) RESET RESET (PT7M7810/ 12) VRST Maximum Ratings Storage Temperature ............................................................-65oC to +150oC Ambient Temperature with Power Applied.......................... -40oC to +85oC Supply Voltage to Ground Potential (Vcc to GND) ..............-0.3V to +7.0V DC Input Voltage (All inputs except Vcc and GND)......-0.3V to VCC+0.3V Open-drain RESET …………………………………….…..-0.3V to +7.0V DC Output Current (All outputs) ..........................................................20mA Power Dissipation .......................................... 320mW (Depend on package) Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Recommended Operation Conditions Sym VCC VIH VIL TA Description Supply Voltage for 78xxL/M/J Supply Voltage for 78xxT/S Supply Voltage for 78xxR/Z/Y/K/G Input High Voltage (WDI, MR) Input High Voltage for Open-drain RESET Input Low Voltage Operating Temperature Test Conditions - All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 4 Min. 4.5 3.0 2.7 0.7VCC 0 -40 Typ. 5.0 3.3 3.0 -- Max. 5.5 5.5 5.5 VCC 5.5 0.3VCC 85 Unit V V V V V V ºC 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 DC Electrical Characteristics (VCC = VRN + 5% to 5.5V, TA= -40~85ºC, unless otherwise noted.)(Note 1) Symbol Description Test Conditions Min. Typ. Max. Unit VCC Operating Voltage Range Vcc = 5V, No load 1.0 0.7VCC 10 13 - 5.5 30 36 VCC V µA - - 0.3VCC V VRN - 1.5% VRN VRN + 1.5% VRN - 2.5% VRN VRN + 2.5% - 12 - - 4 - Vcc  4.5V Isource=800µA Vcc-1.5 50 - - Vcc  2.7V Isource=500µA 0.8×Vcc - - Vcc  1.8V Isource=150µA 0.8×Vcc - - Vcc  1.0V Isource=4µA 7823/24/25L/M, Vcc=VRST Isource=120µA 7823/24/25T/S/R/K, Vcc=VRST Isource=30µA Vcc  4.5V Isink=3.2mA 0.8×Vcc - - Vcc-1.5 - - V 0.8×Vcc - - V - - 0.4 Vcc  2.7V Isink=1.2mA - - 0.3 Vcc  1.0V Isink=100µA - - 0.3 VCC > VTH(MAX) for 7803 - - 1 - 120 160 -20 -15 - - 800 ICC Supply Current VIH Input High Voltage Pin: MR, WDI VIL Input Low Voltage VRST Threshold Voltage(Fallingedge)(Note 2) Pin: MR, WDI TA= 25ºC VRTH Reset Threshold Hysteresis (Note 2) Output High Voltage(Except 7823/24/25) VOH Output High Voltage(7823/24/25) TA= -40 ~ 85ºC Vcc varies between VRN ±5% 7803/09/10/11/12 7823/24/25 78xx 7823/24/25L/M 7823/24/25 T/S/R/K/Z/Y Others VOL Output Low Voltage ILKG Open-Drain Output Leakage Current IWDI Average WDI Input Current (Note 3) WDI connected to VCC: 5.5V PT7M782xL/M, RESET=0V, Vcc=5.5V - Isource RESET Output ShortCircuit Current (only for PT7M7823/24/25) PT7M782xT/S/R/K/Z/Y, RESET=0V, Vcc=3.6V PT7M7811/7812 - - 400 10 20 40 PT7M7823/7824/7825 35 52 75 r MR pull-up resistor (internal) WDI connected to GND V V mV V V µA µA µA k Note: 1. Parameters of room temperature guaranteed by production test and parameters of full-temperature guaranteed by design. 2. Valid for both RESET and RESET. VRST (VRTH-) is the Reset threshold voltage when VCC from high to low level, and VRTH+ is the Reset threshold voltage when VCC from low to high level. VRN is nominal reset threshold voltage. 3. WDI is internally serviced within the watchdog period if WDI is left unconnected. All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 5 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 AC Electrical Characteristics Symbol Description Test Conditions Min. Typ. Max. Unit tRS Reset Pulse Width MR from low to High. 140 200 400 ms tWD Watchdog Timeout Period 1.12 1.6 2.25 s tMR MR Pulse Width WDI, MR tied to Vcc, Vcc>VRN+5%. - 200 - - ns tMD MR to RESET Delay WDI Pulse Width - - 250 ns 150 - - ns tWP Vcc=5V - Watchdog Timing Diagram VCC VRST VRST tRS tWD tRS tRS RESET RESET tWP tMD WDI tMR MR All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 6 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 Functional Description Reset Output A microprocessor (P) reset input starts the P in a known state. Whenever the P is in an unknown state, it should be held in reset. The supervisory circuits assert reset during power-up and prevent code execution errors during power-down or brownout conditions. On power-up, once Vcc reaches about 1.0V, RESET is a guaranteed logic low of 0.4V or less. As Vcc rises, RESET stays low. When Vcc rises above the reset threshold, an internal timer releases RESET after about 200ms. RESET pulses low whenever Vcc drops below the reset threshold, i.e. brownout condition. If brownout occurs in the middle of a previously initiated reset pulse, the pulse continues for at least another 200ms. On power-down, once Vcc falls below the reset threshold, RESET stays low and is guaranteed to be 0.4V or less until Vcc drops below 1.0V. Watchdog Timing Diagram shows the timing relationship. The active-high RESET output is simply the inverse of the RESET output, and is guaranteed to be valid with Vcc down to 1.0V. Watchdog Timer The PT7M78xx watchdog circuit monitors the P activity. If the P does not toggle the watch-dog input (WDI) within 1.6s, reset asserts. As long as reset is asserted or the WDI input is toggled, the watchdog timer will stay clear and will not count. As soon as reset is released, the timer will start counting. WDI input pulses as short as 150ns can be detected. Disable the watchdog function by leaving WDI unconnected or by three-stating driver connected to WDI. Do not apply voltage level on DCI over Vcc. Manual Reset The manual-reset input (MR) allows reset to be triggered by a push button switch. MR has an internal pullup resistor, so it can be left open when not used. Do not apply voltage level over Vcc. Typical Application Circuit VCC PT7M7803 Application Circuit VCC VCC RESET RESET GND µP VCC PT7M7809 (10) Application Circuit VCC VCC RESET (RESET) GND All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 7 RESET µP 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 VCC PT7M7811 (12) Application Circuit VCC VCC RESET (RESET) GND MR RESET I/O INT µP VCC PT7M7823 Application Circuit VCC VCC RESET WDI MR RESET I/O GND µP VCC PT7M7824 Application Circuit VCC VCC RESET RESET GND RESET WDI I/O µP VCC PT7M7825 Application Circuit VCC VCC RESET RESET GND MR RESET RESET µP All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 8 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 Mechanical Information T (SOT23) All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 9 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 C (SC70) All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 10 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 TA (SOT23) All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 11 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 TB (SOT143) All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 12 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 Note: For latest package info, please check: http://www.pericom.com/support/packaging/packaging-mechanicals-and-thermal-characteristics/ Ordering Information Part Number Package Code Package PT7M7803XTEX T 3-Pin, Small Outline Transistor Plastic (SOT23), Tape & Reel PT7M7809XTEX T 3-Pin, Small Outline Transistor Plastic (SOT23), Tape & Reel PT7M7810XTEX T 3-Pin, Small Outline Transistor Plastic (SOT23), Tape & Reel PT7M7803XC3EX C3 3-Pin, SOT323 (SC70), Tape & Reel PT7M7809XC3EX C3 3-Pin, SOT323 (SC70), Tape & Reel PT7M7810XC3EX C3 3-Pin, SOT323 (SC70), Tape & Reel PT7M7811XTAEX TA 5-Pin, Small Outline Transistor Plastic Package (SOT23), Tape & Reel PT7M7812XTAEX TA 5-Pin, Small Outline Transistor Plastic Package (SOT23), Tape & Reel PT7M7823XTAEX TA 5-Pin, Small Outline Transistor Plastic Package (SOT23), Tape & Reel PT7M7824XTAEX TA 5-Pin, Small Outline Transistor Plastic Package (SOT23), Tape & Reel PT7M7825XTAEX TA 5-Pin, Small Outline Transistor Plastic Package (SOT23), Tape & Reel PT7M7811XTBEX TB 4-Pin (SOT143), Tape & Reel PT7M7812XTBEX TB 4-Pin (SOT143), Tape & Reel *PT7M7809XUWF UWF Wafer form Note:  Thermal characteristics can be found on the company web site at www.pericom.com/packaging/  E = Pb-free and Green  Adding X Suffix= Tape/Reel  “*” for UWF package, please check the storage with related sales. Suffix: X—Monitored Voltage X L M Reset Threshold 4.63 4.38 (V) T S R Z Y J K G 3.08 2.93 2.63 2.32 2.20 4.00 2.25 2.80 All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 13 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 Marking Information Code Description 12 Part Number 3 Year 4 Work Week • Only for PT7M7809M Part Number Code Code 1 2 AA AB AC AD AE AF AG jm pE AH AI AJ AK AL AM AN se Part No PT7M7809L PT7M7809M PT7M7809T PT7M7809S PT7M7809R PT7M7809Z PT7M7809Y PT7M7809J PT7M7809G PT7M7810L PT7M7810M PT7M7810T PT7M7810S PT7M7810R PT7M7810Z PT7M7810Y PT7M7810J Code 1 2 AO AP AQ AR AS AT AU sf Part No PT7M7811L PT7M7811M PT7M7811T PT7M7811S PT7M7811R PT7M7811Z PT7M7811Y PT7M7811J Code 1 2 BC BD BE BF BG BH BI sc Part No PT7M7803L PT7M7803M PT7M7803T PT7M7803S PT7M7803R PT7M7803Z PT7M7803Y PT7M7803J AV AW AX AY AZ BA BB sg PT7M7812L PT7M7812M PT7M7812T PT7M7812S PT7M7812R PT7M7812Z PT7M7812Y PT7M7812J BJ BK BL BM BN BO BP sh mP PT7M7823L PT7M7823M PT7M7823T PT7M7823S PT7M7823R PT7M7823Z PT7M7823Y PT7M7823J PT7M7823K All trademarks are property of their respective owners. 2017-04-0010 www.diodes.com 14 Code 1 2 BQ BR BS BT BU BV BW si mQ BX BY BZ CA CB CC CD sj Part No PT7M7824L PT7M7824M PT7M7824T PT7M7824S PT7M7824R PT7M7824Z PT7M7824Y PT7M7824J PT7M7824K PT7M7825L PT7M7825M PT7M7825T PT7M7825S PT7M7825R PT7M7825Z PT7M7825Y PT7M7825J 5/10/2017 PT0109-24 PT7M7803/7809-7812/7823-7825 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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