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LM27213 Folha de dados(PDF) 6 Page - Texas Instruments

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Nome de Peças LM27213
Descrição Electrónicos  LM27213 Single Phase Hysteretic Buck Controller
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
Logo TI - Texas Instruments

LM27213 Folha de dados(HTML) 6 Page - Texas Instruments

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LM27213
SNVS377A – FEBRUARY 2006 – REVISED MARCH 2013
www.ti.com
Electrical Characteristics (continued)
Specifications with standard typeface are for TJ = 25°C, and those in bold face type apply over a junction temperature range
of -5°C to +110°C. Unless otherwise specified, VDD = 5V, SGND = DGND = PGND = SRCK = 0V, unless otherwise stated.
(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
UVLO Threshold
VDD = V5A = V5B, rising from 0V
4
4.3
4.5
V
UVLO Hysteresis
VDD = V5A = V5B falling from UVLO
0.2
0.66
V
Threshold
Logic
VLH
VR_ON, STP_CPU#, XPOK and SLP
VR_ON, STP_CPU#, XPOK or SLP rising
2.31
1.9
V
Input Logic High
from 0V
VLL
VR_ON, STP_CPU#, XPOK and SLP
VR_ON, STP_CPU#, XPOK or SLP
1.43
0.99
V
Input Logic Low
falling from 3.3V
CLK_EN# Sink Current
CLK_EN# = 0.1V and asserted
2.5
7
mA
Power Good
VPGH
Power Good Upper Threshold As A
SENSE voltage rising from 0V
108
114
119
%
Percentage of VREF
VPGL
Power Good Lower Threshold As A
SENSE voltage falling from above VREF
85
88
91
%
Percentage of VREF
Hysteresis
5
%
tdpgood
Power Good Delay
3
µs
Ipgood
PGOOD Sink Current
PGOOD = 0.1V and asserted
2.5
7
mA
Output Voltage Slew Rate Control
Iss(on)
Soft Start Current
SS = 0V
16
22
32
µA
Iss(off)
Soft Shutdown Current
33
45
57
µA
Iss(slew)
VID and Mode Change Slew Rate Control
255
337
415
µA
Current
DAC and References
VIDLH
VID Pins Input Logic High
0.63
0.56
V
VIDLL
VID Pins Input Logic Low
0.48
0.315
V
Vdac
DAC Accuracy
Measured at VREF pin
%
DAC codes from 0.7V to 0.828V
-1.3
1.3
DAC codes from 0.844V to 1.004V
-1.1
1.1
DAC codes from 1.020V to 1.196V
-0.9
0.9
DAC codes from 1.212V to 1.356V
-1
1
DAC codes from 1.372V to 1.500V
-1.1
1.1
DAC codes from 1.516V to 1.708V
-1.3
1.3
V1R7
V1R7 Accuracy
17k
Ω from V1R7 to GND
-1.674
1.708
1.742
V
VSTP Offset
VSTP = 1.398V, Measured at VREF pin
-5
5
mV
VBOOT Offset
VBOOT = 1.00V, Measured at VREF pin
-5
5
mV
VSLP Offset
VSLP = 0.748V, Measured at VREF pin
-5
5
mV
IVREF
VREF Driving Capability
source
1.3
mA
sink
12.6
mA
IVDAC
VDAC Driving Capability
source
1.3
mA
sink
13.4
mA
IV1R7
V1R7 Driving Capability
source
90
549
µA
Error Comparator
IBEC
Error Comparator Input Bias Current
CMP = 1.436V.
12
21
33
µA
(Sourcing)
VOSEC
Error Comparator Input Offset Voltage
CMPREF = 1.436V.
-3
3
mV
IHYST
Hysteresis Current (bi-directional)
Rhys = 17kW
38
50
68
µA
Rhys = 170kW
5
µA
6
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