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TPS40101RGET Datasheet(PDF) 4 Page - Texas Instruments

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No. de pieza TPS40101RGET
Descripción Electrónicos  MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH ADVANCED SEQUENCING AND OUTPUT MARGINING
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Fabricante Electrónico  TI [Texas Instruments]
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TPS40101RGET Datasheet(HTML) 4 Page - Texas Instruments

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TPS40101
SLUS726 – SEPTEMBER 2006
ELECTRICAL CHARACTERISTICS (continued)
-40
°C ≤ T
A = TJ≤ 85°C, VVDD = 12 V, RRT = 182 kΩ, RGM = 232 kΩ, RILIM = 121 kΩ (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOLTAGE MARGINING
Feedback voltage margin 5% up
VMGU ≤ 500 mV
715
725
735
VFBMGU
mV
Feedback voltage margin 3% up
2 V
≤ V
MGU ≤ 3 V
700
711
720
IMGUP
Margin-up bias current
60
80
100
µA
Feedback voltage margin 5% down
VMGD ≤ 500 mV
645
655
665
VFBMGD
mA
Feedback voltage margin 3% down
2 V
≤ V
MGD ≤ 3 V
660
669
680
IMGDN
Margin-down bias current
60
80
100
µA
tMGDLY
Margining delay time(3)
12
30
ms
tMGTRAN
Margining transition time
1.5
7.0
CURRENT SENSE AMPLIFIER
gmCSA
Current sense amplifier gain
TJ =25°C
300
333
365
µS
TCGM
Amplifier gain temperature coefficient
-2000
ppm/
°C
VGMLIN
Gm linear range voltage
TJ =25°C
-50
50
mV
IISNS
Bias current at ISNS pin
VVO = VISNS = 3.3 V
250
nA
0
6
VGMCM
Input voltage common mode
V
4.5 V
≤ V
IN ≤ 5.5 V
0
3.6
CURRENT LIMIT
VILIM
ILIM pin voltage to trip overcurrent
1.44
1.48
1.52
V
tILIMDLY
Current limit comparator propagation delay
HDRV transition from on to off
70
140
ns
DRIVER SPECIFICATIONS
tRHDRV
HIgh-side driver rise time(4)
CLOAD = 4.7 nF
57
ns
tFHDRV
HIgh-side driver fall time(4)
CLOAD = 4.7 nF
47
IHDRVSRPKS
HIgh-side driver peak source current(4)
800
mA
IHDRVSRMIL
HIgh-side driver source current at 2.5 V(4)
VHDRV - VSW = 2.5 V
700
IHSDVSNPK
HIgh-side driver peak sink current(4)
1.3
A
IHDRVSNMIL
High-side driver sink current at 2.5 V(4)
VHDRV - VSW = 2.5 V
1.2
RHDRVUP
HIgh-side driver pullup resistance
IHDRV = 300 mA
2.4
4.0
RHDRVDN
HIgh-side driver pulldown resistance
IHDRV = 300 mA
1.0
1.8
tRLDRV
Low-side driver rise time(4)
CLOAD = 4.7 nF
57
ns
tFLDRV
Low-side driver fall time(4)
CLOAD = 4.7 nF
47
ILDRVSRPK
Low-side driver peak source current(4)
800
mA
ILDRVSNMIL
Low-side driver source current at 2.5 V(4)
VLDRV = 2.5 V
700
ILSDVSNPK
Low-side driver peak sink current(4)
1.3
A
Low-side driver sink current at 2.5 V(4)
VLDRV = 2.5 V
1.2
RLDRVUP
Low-side driver pullup resistance
ILDRV = 300 mA
2.0
4.0
RLDRVDN
Low-side driver pulldown resistance
ILDRV = 300 mA
0.8
1.5
ISWLEAK
Leakage current from SW pin
-1
1
µA
POWERGOOD
VLPGD
Powergood low voltage
IPGD= 2 mA
30
100
mV
tPGD
Powergood delay time
15
25
35
µs
VVDD = OPEN, 10-kΩ pullup to external
VLPGDNP
Powergood low voltage , no device power
1.00
1.25
V
5-V supply
VOV
Power good overvoltage threshold, VFB
765
mV
VUV
Power good undervoltage threshold, VFB
615
(3)
Margining delay time is the time delay from an assertion of a margining command until the output voltage begins to transition to the
margined voltage.
(4)
Ensured by design. Not production tested.
4
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