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TPS2500 датащи(PDF) 4 Page - Texas Instruments

номер детали TPS2500
подробное описание детали  INTEGRATED USB POWER SWITCH WITH BOOST CONVERTER
PDF  43 Pages
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производитель  TI2 [Texas Instruments]
домашняя страница  https://www.ti.com
Logo TI2 - Texas Instruments

TPS2500 датащи(HTML) 4 Page - Texas Instruments

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TPS2500, TPS2501
SLVS886C – OCTOBER 2008 – REVISED AUGUST 2010
www.ti.com
ELECTRICAL CHARACTERISTICS — Boost Section Only (continued)
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OVERVOLTAGE PROTECTION
1.05 ×
VOVP
AUX overvoltage shutdown
AUX rising
V
VAUX
POWER STAGE
Switch on resistance (SWN)
80
120
m
Ω
Peak switch current limit, cycle-by-cycle (SWN
ISW
3
4.5
6
MOSFET)
A
IUPPER
6.7
Switch on-resistance (SWP)
85
125
m
Ω
Switch on-resistance (SWP + USB)
VIN > VNFM
125
185
START-UP
ISTART
Constant current
2.3
2.65
3
A
Constant-current exit threshold (AUX voltage
VEXIT
700
mV
where converter starts switching), VIN - VAUX
BOOST ENABLE (EN)
Enable threshold, boost converter
0.7
1
V
IEN
Input current
VEN = 0 V or 5.5 V
–0.5
0.5
mA
ELECTRICAL CHARACTERISTICS — USB Section Only
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
USB
rUSB
USB switch resistance
50
80
m
Ω
tr
Rise time, output
2
3
ms
VAUX = 5.1 V, CL = 100 mF, RL = 10 Ω,
RILIM = 20 kΩ
tf
Fall time, output
2.5
3.5
ms
USB ENABLE (ENUSB)
Enable threshold, USB switch
0.7
1.0
V
IENUSB
Input current
VENUSB = 0 V or 5.25 V
–0.5
0.5
mA
Turnon time
5
ms
CL = 100 mF, RL = 10 Ω, RILIM = 20 kΩ
Turnoff time
10
ms
FAULT
Output low voltage
I FAULT = 1 mA
150
mV
Off-state current
V FAULT = 5.25 V
1
mA
FAULT assertion or deassertion due to
tDEG
FAULT deglitch
6
8
10
ms
overcurrent condition
VTRIP
AUX threshold for FAULT trip
AUX voltage falling
4.45
4.6
4.71
V
ILIM
RILIM = 100 kΩ
190
285
380
IOS
Short-circuit output current, VIN = 3.3 V
RILIM = 40 kΩ
550
712
875
mA
RILIM = 20 kΩ
1140
1420
1700
tIOS
Response time to short circuit
VAUX = 5.1 V (see Figure 3)
5
ms
4
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Copyright © 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS2500 TPS2501



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