TC52N4527ECTTR

Obsolete Device TC52 Dual-Channel Voltage Detector Features Description • Two Independent Voltage Detectors in One Package • Highly Accurate: ±2% • Low Power Consumption: 2.0 μA, typical • Channel 1 Detect Voltage: 3.0V, 4.5V • Channel 2 Detect Voltage: 2.7V • Operating Voltage: 1.5V to 10.0V • Output Configuration: N-Channel Open-Drain • Space-Saving 5-Pin SOT-23 Package The TC52 consists of two independent low-power voltage detectors in a space-saving 5-pin SOT-23 package. Typical supply current consumption is only 2 μA at an input voltage of 2V. The voltage detection threshold settings are factory-programmed and guaranteed to ±2% accuracy. The TC52 is available with open drain (NMOS) configurations. Small-size, high-precision, low-supply current, and low installed cost makes the TC52 the ideal voltage detector for a wide variety of voltage monitoring applications. Typical Applications Functional Block Diagram • Battery Life Monitors and Recharge Voltage Monitors • Memory Battery Backup Circuitry • Power-On Reset Circuits • Power Failure Detection • Delay Circuitry VIN1 VOUT1 + – VIN2 Package Type 5-Pin SOT-23 VOUT2 VIN2 5 4 VOUT2 + – GND VREF 1 2 3 VOUT1 VIN1 GND  2001-2015 Microchip Technology Inc. DS20001430E-page 1 TC52 1.0 † Notice: Stresses above 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 above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Input Voltage ........................................................+12V Output Current ...................................................50 mA Output Voltage.......................VIN + 0.3V to VSS – 0.3V Power Dissipation 5-Pin SOT-23 ............................................100 mW Operating Temperature Range.............-40°C to +85°C Storage Temperature Range ..............-40°C to +125°C DC ELECTRICAL CHARACTERISTICS Electrical Specifications: TA = 25°C, unless otherwise specified. Note 1. Parameter Sym. Min. Typ. Max. Units Operating Voltage VIN 1.5 — 10.0 V Supply Current ISS — 1.35 3.90 μA — 1.50 4.50 VIN1 = 2.0V — 1.95 5.10 VIN1 = 3.0V — 2.40 5.70 VIN1 = 4.0V Input Current VIN2 IIN2 Conditions VDF (T) = 1.5 to 5.0V VIN1 = 1.5V — 3.00 6.30 — 0.45 1.30 VIN1 = 5.0V — 0.50 1.50 VIN1 = 2.0V — 0.65 1.70 VIN1 = 3.0V — 0.80 1.90 VIN1 = 4.0V — 1.00 2.10 VIN1 = 5.0V μA VIN1 = 1.5V Channel 1 Detect Voltage VDET1- VT1 x 0.98 VT1 ± 0.5% VT1 x 1.02 V Note 2 Channel 2 Detect Voltage VDET2 - VT2 x 0.98 VT2 ± 0.5% VT2 x 1.02 V Note 2 Hysteresis Range 1 VHYS1 VDET1- x 0.02 Hysteresis Range 2 VHYS2 VDET2- x 0.02 IOUT 0.3 Output Current VDET1- x 0.05 VDET1- x 0.08 VDET2- x 0.05 VDET2- x 0.08 2.2 — V mA VOL = 0.5V, VIN1 = 1.0V 3.0 7.7 — VOL = 0.5V, VIN1 = 2.0V 5.0 10.1 — VOL = 0.5V, VIN1 = 3.0V 6.0 11.5 — VOL = 0.5V, VIN1 = 4.0V 7.0 13.0 — VOL = 0.5V, VIN1 = 5.0V Temperature Characteristics ΔVDET -/ (ΔTOPR VDET -) — ±100 — Detection Time tDLY — — 0.2 Note 1: 2: V ppm/°C -40°C ≤ TOPR ≤ 85°C msec Time from VIN = VDETto VOUT = VOL Additional resistance between the VIN1 pin and the supply voltage may alter the electrical characteristics. VT1, VT2 are the factory-programmed voltage detection thresholds. DS20001430E-page 2  2001-2015 Microchip Technology Inc. TC52 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Pin No. (5-Pin SOT-23) Symbol 1 VOUT1 3.0 Description Detector #1 output Supply voltage input, detect voltage 1 2 VIN 3 GND Ground terminal 4 VIN2 Detect voltage 2 5 VOUT2 Detector #2 output DETAILED DESCRIPTION In normal steady-state operation and for either channel, when VIN > VDET-, the output is high, see Figure 3-1. (In the case of the TC52N, this is an opendrain condition.) If and when the input falls below VDET-, the output pulls down (Logic 0) to VSS. Generally, VOUT can pull down to within 0.5V of VSS at rated output current and input voltages. (Also see Section 1.0, Electrical Characteristics). VINx Detect Voltage VDET– The output, VOUT, stays valid until the input voltage falls below the minimum operating voltage, VINMIN, of 0.7V. Below this minimum operating voltage, the output is undefined. During power-up or anytime VIN has fallen below VINMIN, VOUT will remain undefined until VIN rises above VINMIN, at which time the output becomes valid. VOUT is maintained in its active low state while VINMIN < VIN < VDET+. (VDET+ = VDET- + VHYST). If and when the input rises above VDET+, the output will assume its inactive state (open-drain for TC52N). VDET+ VHYST Release Voltage or RESET Voltage Minimum Operating Voltage Ground Level VOUTx Output Voltage Ground Level FIGURE 3-1: Timing Diagram.  2001-2015 Microchip Technology Inc. DS20001430E-page 3 TC52 4.0 APPLICATION INFORMATION Pin 2 (VIN1) acts as both the input to Voltage Detector #1 and the power supply input for the chip. As such, always assign VIN1 to monitor voltages between 1.5V and 10V. Failure to do this will result in unreliable detector operation due to an out-of-tolerance supply voltage. In high-noise environments, it may be necessary to install a small input bypass capacitor (0.01 μF to 0.1 μF) from VIN1 to ground to minimize onchip power supply noise. DS20001430E-page 4  2001-2015 Microchip Technology Inc. TC52 5.0 PACKAGING INFORMATION 5.1 Package Marking Information 5-Lead SOT-23 Example Standard Markings for SOT-23 Part Number Code TC52N3027ECTTR N0C# TC52N4527ECTTR N0P# N0C2 N-channel Indication and Integer Part of Output Voltage Symbol Output N Nch Registration Serial Number Symbol Detected Voltage 1 Legend: XX...X Y YY WW NNN e3 * Note: Detected Voltage 2 0C 3.0 2.7 0P 4.5 2.7 Customer-specific information Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week ‘01’) Alphanumeric traceability code Pb-free JEDEC designator for Matte Tin (Sn) This package is Pb-free. The Pb-free JEDEC designator ( e3 ) can be found on the outer packaging for this package. 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