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TPS54362BQPWPRQ1 Fiches technique(PDF) 8 Page - Texas Instruments

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No de pièce TPS54362BQPWPRQ1
Description  TPS54362-Q1 3-A, 60-V Step-Down DC-DC Converter With Low
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54362BQPWPRQ1 Fiches technique(HTML) 8 Page - Texas Instruments

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TPS54362-Q1
SLVS845G – MARCH 2009 – REVISED AUGUST 2014
www.ti.com
Electrical Characteristics (continued)
V(VIN) = 7 V to 48 V, V(EN) = V(VIN), TJ = –40°C to 150°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TEST(1)
SYNCHRONIZATION (SYNC)(2)
VIL(SYNC)
Low input threshold
0.7
V
PT
VIH(SYNC)
High input threshold
1.7
V
PT
Ilkg
Leakage
SYNC = 5 V
65
95
μA
PT
Duty(min)
Minimum duty cycle
30%
CT
Duty(miax) Maximum duty cycle
70%
CT
Rslew
Rslew = 50 k
Ω
20
I(Rslew)
Output current
μA
CT
Rslew = 10 k
Ω
100
OVERVOLTAGE SUPERVISORS (OV_TH)
Threshold for OV_TH pin during
V(OV_TH)
Internal switch is OFF.
0.768
0.832
V
OV
PT
Internal pulldown current on
OV_TH = 1 V, V(VReg) = 5 V
70
mA
OV_TH pin
THERMAL SHUTDOWN
Thermal shutdown junction
T(SD)
175
°C
CT
temperature
T(HYS)
Temperature hysteresis
30
°C
CT
(2)
The SYNC input clock can have a maximum frequency of 2× the programmed clock frequency up to a maximum value of 1.1 MHz.
6.6 Timing Requirements
V(VIN) = 7 V to 48 V, V(EN) = V(VIN), TJ = –40°C to 150°C (unless otherwise noted)
MIN
NOM
MAX
UNIT
TEST(1)
SYNCHRONIZATION (SYNC)(2)
External clock = 1 MHz, V(VIN) = 12 V,
t(trans-ItoE)
Internal clock to external clock
2.5
μs
Info
V(VReg) = 5 V
V(VIN) = 12 V, V(VReg) = 5 V,
f(SYNC)
Input clock
180
2200
kHz
CT
f(sw) < f(ext) < 2 × f(sw)
RESET OUTPUT (RST)
td(POR)
POR delay timer
C2 = 4.7 nF
3.6
7
ms
PT
td(RSTdly)
Filter time
10
20
35
μs
PT
(1)
PT = Production tested; CT = Characterization tested only, not production tested; Info = User information only, not production tested
(2)
The SYNC input clock can have a maximum frequency of 2× the programmed clock frequency up to a maximum value of 1.1 MHz.
6.7 Switching Characteristics
V(VIN) = 7 V to 48 V, V(EN) = V(VIN), TJ = –40°C to 150°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TEST(1)
SYNCHRONIZATION (SYNC)(2)
t(trans-EtoI) External clock to internal clock
Remove external clock, V(VIN) = 12 V,
32
μs
Info
V(VReg) = 5 V
(1)
PT = Production tested; CT = Characterization tested only, not production tested; Info = User information only, not production tested
(2)
The SYNC input clock can have a maximum frequency of 2× the programmed clock frequency up to a maximum value of 1.1 MHz.
8
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