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LM46002PWPR датащи(PDF) 7 Page - Texas Instruments

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номер детали LM46002PWPR
подробное описание детали  SIMPLE SWITCHER 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter
PDF  52 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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LM46002PWPR датащи(HTML) 7 Page - Texas Instruments

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LM46002
www.ti.com
SNVSA13B – APRIL 2014 – REVISED SEPTEMBER 2014
7.7 Switching Characteristics
Limits apply over the recommended operating junction temperature (TJ) range of -40°C to +125°C, unless otherwise stated.
Minimum and Maximum limits are specified through test, design or statistical correlation. Typical values represent the most
likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated, the following
conditions apply: VIN = 24 V, VOUT = 3.3 V, FS = 500 kHz.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SW (SW
PIN)
Minimum high side MOSFET ON
tON-MIN
(1)
125
165
ns
time
Minimum high side MOSFET OFF
tOFF-MIN
(1)
200
250
ns
time
OSCILLATOR (SW PINS AND SYNC PIN)
FOSC-
Oscillator default frequency
RT pin open circuit
410
500
590
kHz
DEFAULT
Minimum adjustable frequency
200
kHz
FADJ
Maximum adjustable frequency
With 1% resistors at RT pin
2200
kHz
Frequency adjust accuracy
10%
VSYNC-HIGH Sync clock high level threshold
2
V
VSYNC-LOW Sync clock low level threshold
0.4
V
DSYNC-MAX Sync clock maximum duty cycle
90%
DSYNC-MIN
Sync clock minimum duty cycle
10%
Mininum sync clock ON and OFF
TSYNC-MIN
80
ns
time
(1)
Ensured by design. Not production tested.
Copyright © 2014, Texas Instruments Incorporated
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Product Folder Links: LM46002



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