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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LP8727 датащи(PDF) 5 Page - Texas Instruments |
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LP8727 датащи(HTML) 5 Page - Texas Instruments |
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5 / 33 page  LP8727 www.ti.com SNVS898A – OCTOBER 2012 – REVISED MAY 2013 ESD Rating (1) VBUS, VBAT, D+ D −, ID IEC61000-4-2 In-module ±8kV Contact Discharge Testing @ USB Connector ±15kV Air Discharge Human Body ±2 kV Machine Model ±150V (1) The human-body model is 100 pF discharged through 1.5 k Ω. The machine model is a 200 pF capacitor discharged directly into each pin, MIL-STD-883 3015.7. Thermal Properties Junction-to-Ambient Thermal Resistance ( θJA) (1) 46°C Thin DSBGA-25 (1) Junction-to-ambient thermal resistance is highly application and board layout dependent. In applications where high power dissipation exists, special care must be given to thermal dissipation issues in board design. Electrical Characteristics (1) (2) Limits in standard typeface are for TJ = 25°C. Limits in boldface type apply over the operating ambient temperature range ( −40°C ≤ TJ ≤ +125°C). Unless otherwise noted, specifications apply to the Typical Application Circuit with VVBAT = 3.7V, VVBUS = 5V. Symbol Parameter Conditions Typ Min Max Units VVBAT VBAT Voltage Range 2.5 5.5 V VVBUS VBUS Voltage Range 3.5 7 VVBUS = 5V 4.2 VCC Internal Supply Voltage VVBUS = 0V VVBAT VSWPOS Positive Switch Regulator VVBAT > 3.6 or VVBUS > 3.6 3.4 3.3 3.6 V VSWNEG Negative Switch Regulator VVBAT > 3.6 or VVBUS > 3.6 −1.8 −2.0 −1.7 UNDERVOLTAGE LOCKOUT VBUS Rising (Default) 3.9 3.7 4.1 Undervoltage Lockout UVLOVBUS Threshold range VBUS Falling (Default) 3.7 3.5 3.9 V VBAT Rising (Default) 2.9 2.7 3.1 Undervoltage Lockout UVLOVBAT Threshold range VBAT Falling (Default) 2.7 2.5 2.9 QUIESCENT CURRENTS CP_EN = ADC_EN = SEMREM = 0 IVBAT (STBY) VBAT Standby Iq 3.8 20 USB_DET_DIS = 1 Register Default @ VVBAT = 3.7V IVBAT (SUP1) VBAT Supply Current1 42 90 VVBUS = 0V Register Default @ VVBAT = 3.7V IVBAT (SUP2) VBAT Supply Current2 ADC_EN = SEMREM = 1, VVBUS = 60 120 µA 0V CP_EN = ADC_EN = SEMREM = 0 IVBUS (STBY) VBUS Standby Iq USB_DET_DIS = CHG_OFF = 1, 90 200 EXPDET_EN = 0 Register Default @VVBUS = 5V, No IVBUS (SUP) VBUS Supply Current 250 400 load on VBAT (No battery) LOGIC AND CONTROL INPUTS SDA, SCL 0.4 VIL Input Low Level V DSS 0.4 SDA, SCL 1.4 VIH Input High Level V DSS 1.4 All logic inputs ILEAK Input Current -5 +5 µA Over pin Voltage range DSSIN Input Resistance(2) DSS Pulldown Resistor to GND 300 k Ω (1) All voltages are with respect to the potential at the GND pin. (2) Min and Max limits are specified by design, test or statistical analysis. Typical numbers are not ensured, but do represent the most likely norm. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LP8727 |
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