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UCD3138RMHT Folha de dados(PDF) 18 Page - Texas Instruments

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Nome de Peças UCD3138RMHT
Descrição Electrónicos  Highly Integrated Digital Controller for Isolated Power
PDF  78 Pages
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

UCD3138RMHT Folha de dados(HTML) 18 Page - Texas Instruments

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UCD3138
SLUSAP2F – MARCH 2012 – REVISED NOVEMBER 2013
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
V33A = V33D = V33DIO = 3.3V; 1
μF from BP18 to DGND, TJ = –40°C to 125°C (unless otherwise noted)
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
Internal signal warning of brownout
Brownout
2.9
V
conditions
TEMPERATURE SENSOR(7)
VTEMP
Voltage range of sensor
1.46
2.44
V
Voltage resolution
Volts/°C
5.9
mV/ºC
Temperature resolution
Degree C per bit
0.1034
ºC/LSB
Accuracy(7)(8)
-40°C to 125°C
–10
±5
10
ºC
Temperature range
-40°C to 125°C
–40
125
ºC
ITEMP
Current draw of sensor when active
30
μA
TON
Turn on time / settling time of sensor
100
μs
VAMB
Ambient temperature
Trimmed 25°C reading
1.85
V
ANALOG COMPARATOR
DAC
Reference DAC Range
0
2.5
V
Reference Voltage
2.478
2.5
2.513
V
Bits
7
bits
INL(7)
–0.42
0.21
LSB
DNL(7)
0.06
0.12
LSB
Offset
–5.5
19.5
mV
Time to disable DPWM output based on 0
V to 2.5 V step input on the analog
150
ns
comparator.(9)
Reference DAC buffered output load(10)
0.5
1
mA
Buffer offset (-0.5 mA)
4.6
8.3
mV
Buffer offset (1.0 mA)
–0.05
17
mV
(7)
Characterized by design and not production tested.
(8)
Ambient temperature offset value should be used from the TEMPSENCTRL register to meet accuracy.
(9)
As designed and characterized. Not 100% tested in production.
(10) Available from reference DACs for comparators D, E, F and G.
18
Electrical Specifications
Copyright © 2012–2013, Texas Instruments Incorporated
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Product Folder Links: UCD3138



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