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TPS55010 Fiches technique(PDF) 6 Page - Texas Instruments

No de pièce TPS55010
Description  TPS55010 2.95-V To 6-V Input, 2 W, Isolated DC/DC Converter with Integrated FETs
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS55010 Fiches technique(HTML) 6 Page - Texas Instruments

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TPS55010
SLVSAV0B – APRIL 2011 – REVISED OCTOBER 2014
www.ti.com
Electrical Characteristics (continued)
TJ = –40°C TO 150°C, VIN = 2.95V TO 6V (unless otherwise noted)
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
RT/CLK
RT/CLK voltage
R(RT/CLK) = 195 kΩ
0.5
V
RT/CLK high threshold
1.6
2.2
V
RT/CLK low threshold
0.4
0.6
V
BOOT
Boot UVLO
2.5
V
SS Slow Start
Charge current
V(SS) = 0.4 V
0.5
2.2
4
µA
SS to VSENSE matching
V(SS) = 0.4 V
35
mV
SS to reference Crossover
98% reference
1.1
V
SS discharge current (overload)
VSENSE = 0 V
325
µA
SS discharge voltage
VSENSE = 0V
46
mV
SS discharge current (UVLO, EN, thermal fault)
V(SS) = 0.5 V
1.2
mA
VIN UVLO to SS start time
100
µs
FAULT Pin
VSENSE falling
91
% VREF
VSENSE threshold
VSENSE rising
108
% VREF
Output high leakage
VSENSE = VREF, V(FAULT) = 5.5 V
2
nA
Output low
I(FAULT) = 3 mA
0.3
V
Minimum VIN for valid output
V(FAULT) < 0.5 V at 100 µA
1.6
V
7.6 Timing Requirements
MIN
TYP
MAX
UNIT
RT/CLK
Minimum CLK pulse width
75
ns
7.7 Switching Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PH
ton
Minimum on time
Measured at 10% to 10% of VIN
130
ns
toff
Minimum off time
V(BOOT-PH) ≥ 3 V
0%
RT/CLK
Switching frequency using CLK mode
300
2000
kHz
Switching frequency using RT mode
100
2000
kHz
Switching Frequency
R(RT/CLK) = 195 kΩ
400
500
600
kHz
PLL lock in time
50
µs
RT/CLK falling edge to PH rising edge
90
ns
delay
SS Slow Start
VIN UVLO to SS start time
100
µs
6
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