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UCD3028RMHT Datasheet(PDF) 21 Page - Texas Instruments |
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UCD3028RMHT Datasheet(HTML) 21 Page - Texas Instruments |
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21 / 81 page  UCD3040 UCD3028 UCD3020 www.ti.com SLUS868H – DECEMBER 2009 – REVISED OCTOBER 2013 ELECTRICAL CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT I33A(1) V33A = 3.3 V 8 15 I33DIO(1) V33DIO = 3.3 V 2 10 Supply current mA V33D = 3.3 V 40 45 I33D(1) V33D = 3.3 V, storing configuration 50 55 parameters in flash memory V33D = 3.3 V, storing configuration I33 Total supply current 60 80 mA parameters in flash memory INTERNAL REGULATOR CONTROLLER INPUTS/OUTPUTS V33 3.3-V linear regulator Emitter of NPN transistor 3.25 3.3 3.35 V V33FB 3.3-V linear regulator feedback 4 4.6 V I33FB Series-pass base drive Vin = 12 V 10 mA Beta Series-NPN-pass device 40 BPCAP 1.8-V Regulator Output V33D = 3.3V, TA = 25C 1.76 1.8 mA ERROR ADC INPUTS EAPn, EANn VCM Common-mode voltage, each pin –0.15 1.6 V VERROR Internal error voltage range AFE_GAIN field of CLA_GAINS = 0 –256 256 mV EAP-EAN Error voltage digital resolution AFE_GAIN field of CLA_GAINS = 3 1 mV REA Input impedance Ground reference 0.5 M Ω IOFFSET Input offset current 1-k Ω source impedance –5 5 μA VRes_DAC EADC reference DAC resolution 1.56 mV Gain = 1, 8 mV/LSB 2 Gain = 2, 4 mV/LSB 2 EADC offset LSB Gain = 4, 2 mV/LSB 1 Gain = 8, 1 mV/LSB 2 ANALOG INPUTS IBIAS Bias current for PMBus addr. pins 9 11 μA VADC_RANGE Measurement range for voltage monitoring 0 2.5 V VADC_REF_INT Internal ADC reference voltage –40°C to 125°C 2.462 2.498 2.523 V 25°C to –40°C 5 Internal ADC reference ΔV to 25°C ΔADC_Ref 25°C to 85°C –10 mV reference voltage(2) 25°C to 125°C –20 Internal analog comparator reference 0.6% ΔADC_Ref_CMP 0°C to 125°C accuracy (± 6 mV) 0.5% EADC DAC reference voltage accuracy (± 4mV) VCMP_THRS Analog comparator threshold voltage range 0.032 2 V VCMP_RES Analog comparator threshold resolution 31.25 mV ADCRef External reference input(3) PFC and RGZ package 1.8 V33A V TempInternal Internal temperature-sense accuracy(2) Over range from –40°C to 125°C –10(4) ±5 10(4) °C INL ADC integral nonlinearity –4 4 LSB DNL ADC differential nonlinearity –2 2 LSB ILeakage Input leakage current 3 V applied to pin 400 nA RIN Input impedance Ground reference 8 M Ω CIN Input capacitance 10 pF tADC ADC single sample time 4.625 μs (1) Supply pins should be ramped at a 10-V/s or greater rate for proper device startup. (2) Characterized by design and not production tested. Ambient temperature offset value should be used from the Data Flash information block to meet accuracy. (3) For the applied external reference input (ADCRef), the actual internal reference voltage (Vref_internal) seen by the 12-bit ADC module should be computed using the equation: ADCRef = Vref_internal × 1.05185 (4) The max/min high/low temperature values are not production tested. Copyright © 2009–2013, Texas Instruments Incorporated Submit Documentation Feedback 21 Product Folder Links: UCD3040 UCD3028 UCD3020 |
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