TL7759CP

TL7759 SUPPLY-VOLTAGE SUPERVISORS SLVS042D – JANUARY 1991 – REVISED JULY 1999 D D D D D D D D, P, OR PW PACKAGE (TOP VIEW) Power-On Reset Generator Automatic Reset Generation After Voltage Drop Precision Input Threshold Voltage . . . 4.55 V ±120 mV Low Standby Current . . . 20 µA Reset Outputs Defined When VCC Exceeds 1 V True and Complementary Reset Outputs Wide Supply-Voltage Range . . . 1 V to 7 V NC NC NC GND 1 8 2 7 3 6 4 5 RESET RESET NC VCC NC – No internal connection description The TL7759 is a supply-voltage supervisor designed for use as a reset controller in microcomputer and microprocessor systems. The supervisor monitors the supply voltage for undervoltage conditions. During power up, when the supply voltage, VCC, attains a value approaching 1 V, the RESET and RESET outputs become active (high and low, respectively) to prevent undefined operation. If the supply voltage drops below the input threshold voltage level (VIT– ), the reset outputs go to the reset active state until the supply voltage has returned to its nominal value (see timing diagram). The TL7759C is characterized for operation from 0°C to 70°C. AVAILABLE OPTIONS PACKAGED DEVICES TA SMALL OUTLINE (D) PLASTIC DIP (P) SHRINK SMALL OUTLINE (PW) CHIP FORM (Y) 0°C to 70°C TL7759CD TL7759CP TL7759CPW TL7759Y The D and PW packages are available taped and reeled. Add the suffix R to the device type (e.g., TL7759CDR). Chip forms are tested at 25°C. functional block diagram 5 + 7 – 8 VCC RESET RESET Reference Voltage 4 GND Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright  1999, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 TL7759 SUPPLY-VOLTAGE SUPERVISORS SLVS042D – JANUARY 1991 – REVISED JULY 1999 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 V Off-state output voltage range: RESET voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 20 V RESET voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 20 V Low-level output current, IOL (RESET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA High-level output current, IOH (RESET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10 mA Package thermal impedance, θJA (see Notes 2 and 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W P package . . . . . . . . . . . . . . . . . . . . . . . . . . . 127°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . 149°C/W Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C † 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 under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All voltage values are with respect to the network ground terminal. 2. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can impact reliability. 3. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero. recommended operating conditions Supply voltage, VCC MIN MAX 1 7 15 Transistor off RESET voltage Output voltage, voltage VO (see Note 4) Transistor off RESET voltage Low-level output current, IOL RESET High-level output current, IOH RESET Operating free-air temperature, TA TL7759C 0 0 UNIT V V 24 mA –8 mA 70 °C NOTE 4: RESET output must not be pulled down below GND potential. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) TL7759C PARAMETER VOL VOH TEST CONDITIONS Low-level output voltage RESET High-level output voltage RESET IOL = 24 mA IOH = –8 mA VCC = 4 4.3 3V VIT IT– Input threshold voltage g (negative-going VCC) TA = 25°C TA = 0°C to 70°C Vres§ Power up reset voltage Power-up RL = 2.2 2 2 kΩ Vhys¶ Hysteresis at VCC input TA = 25°C TA = 0°C to 70°C IOH IOL High-level output current RESET Low-level output current RESET ICC Supply current MIN VCC–1 4.43 TYP‡ MAX 0.4 0.8 4.55 4.67 4.7 0.8 1 1.2 40 50 60 30 VCC = 7 V V, See Figure 1 VOH = 15 V VOL = 0 V No load VCC = 4.3 V VCC = 5.5 V 70 1400 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 V V mV 1 µA –1 µA 2000 ‡ Typical values are at TA = 25°C. § This is the lowest voltage at which RESET becomes active, VCC slew rate ≤ 5 V/µs. ¶ This is the difference between positive-going input threshold voltage, VIT+, and negative-going input threshold voltage, VIT–. 2 V V 4.4 TA = 25°C TA = 0°C to 70°C UNIT 40 µA TL7759 SUPPLY-VOLTAGE SUPERVISORS SLVS042D – JANUARY 1991 – REVISED JULY 1999 electrical characteristics, TA = 25°C (unless otherwise noted) TL7759Y PARAMETER TEST CONDITIONS VOL Low-level output voltage VIT– Vres† Input threshold voltage (negative-going VCC) RESET Power-up reset voltage VCC = 4.3 V, MIN IOL = 24 mA RL = 2.2 kΩ TYP MAX UNIT 0.4 V 4.55 V 0.8 V Vhys‡ Hysteresis at VCC input 50 ICC Supply current VCC = 4.3 V, No load 1400 † This is the lowest voltage at which RESET becomes active, VCC slew rate ≤ 5 V/µs. ‡ This is the difference between positive-going input threshold voltage, VIT+, and negative-going input threshold voltage, VIT–. mV µA timing diagram VCC VIT+ Vres VIT– ÇÇ ÇÇ ÇÇ ÇÇ ÇÇ ÇÇ 0 RESET Output Undefined for VCC Less Than 1 V VIT – Vres VIT+ 0 Output Undefined switching characteristics at TA = 25°C (unless otherwise noted) PARAMETER FROM (INPUT) TO (OUTPUT) TEST CONDITIONS TL7759C MIN MAX UNIT tPLH Propagation delay time, low-to high-level output VCC RESET See Figures 2 and 3§ 5 µs tPHL Propagation delay time, high-to low-level output VCC RESET See Figures 2 and 4 5 µs tr Rise time RESET See Figures 2 and 4§ 1 µs tf Fall time RESET See Figures 2 and 4 1 µs tw(min) Minimum pulse duration RESET See Figures 2 and 4 VCC 5 µs § VCC slew rate ≤ 5 V/µs POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 TL7759 SUPPLY-VOLTAGE SUPERVISORS SLVS042D – JANUARY 1991 – REVISED JULY 1999 PARAMETER MEASUREMENT INFORMATION 15 V VCC RESET + 7V A TL7759 _ RESET GND A Figure 1. Test Circuit for Output Leakage Current 4.8 V VCC (see Note A) 4.3 V tPLH tPHL 90% 90% RESET 50% 50% 10% 10% tr tf NOTE A: VCC slew rate ≤ 5 V/µs. Figure 2. Switching Diagram VCC Pulse Generator TL7759 0.1 mF RESET GND RL = 1 kΩ CL = 100 pF† † CL Includes jig and probe capacitance. Figure 3. Test Circuit for RESET Output Switching Characteristics VCC Pulse Generator 0.1 mF RL= 1k Ω RESET TL7759 GND CL = 100 pF† † CL Includes jig and probe capacitance. Figure 4. Test Circuit for RESET Output Switching Characteristics 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TL7759 SUPPLY-VOLTAGE SUPERVISORS SLVS042D – JANUARY 1991 – REVISED JULY 1999 APPLICATION INFORMATION 5V 0.1 µF 5 VCC RESET 7 System Reset TL7759 RESET 8 1 kΩ GND 4 Figure 5. Power-Supply System Reset Generation POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 PACKAGE OPTION ADDENDUM www.ti.com 13-Aug-2021 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) TL7759CD ACTIVE SOIC D 8 75 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 7759C TL7759CDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 7759C TL7759CP ACTIVE PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 TL7759CP TL7759CPSR ACTIVE SO PS 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T7759 TL7759CPWR ACTIVE TSSOP PW 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T7759C TL7759CPWRE4 ACTIVE TSSOP PW 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 T7759C (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of