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LM76005RNPR bảng dữ liệu(PDF) 8 Page - Texas Instruments

tên linh kiện LM76005RNPR
Giải thích chi tiết về linh kiện  LM76005 3.5-V to 60-V, 5-A Synchronous Step-Down Converter
PDF  51 Pages
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nhà sản xuất  TI2 [Texas Instruments]
Trang chủ  https://www.ti.com
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LM76005RNPR bảng dữ liệu(HTML) 8 Page - Texas Instruments

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6.6 Timing Characteristics
MIN
NOM
MAX
UNIT
CURRENT LIMITS AND HICCUP
NOC (1)
Number of switching cycles
before hiccup is tripped
128
Cycles
tOC
Overcurrent hiccup retry delay
time
46
ms
SOFT START (SS/TRK PIN)
tSS
Internal soft-start time
CSS = OPEN, from EN rising
edge to PGOOD rising edge
3.5
6.3
ms
POWER GOOD (PGOOD PIN) and OVERVOLTAGE PROTECTION
tPGOOD_RISE
PGOOD rising edge deglitch
delay
80
140
200
µs
tPGOOD_FALL
PGOOD falling edge deglitch
delay
80
140
200
µs
(1)
Ensured by design
6.7 Switching Characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PWM LIMITS (SW PINS)
tON-MIN
Minimum switch on-time
65
95
ns
tOFF-MIN
Minimum switch off-time
95
130
ns
tON-MAX
Maximum switch on-time
HS timeout in dropout
3.8
8
11.4
µs
OSCILLATOR (RT and SYNC PINS)
fADJ
Adjustable frequency by RT or SYNC RT =133 kΩ, 0.1%
270
300
330
kHz
fOSC
Internal oscillator frequency
RT = Open
350
400
450
kHz
VSYNC_HIGH
Sync input high level threshold
2
V
VSYNC_LOW
Sync input low level threshold
0.4
V
VMODE_HIGH
Mode input high level threshold for
FPWM
0.42
V
VMODE_LOW
Mode input low level threshold for
AUTO mode
0.4
V
tSYNC_MIN
Sync input minimum on- and off-time
80
ns
LM76005
SNVSBK5A – FEBRUARY 2020 – REVISED JULY 2020
www.ti.com
8
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Copyright © 2020 Texas Instruments Incorporated
Product Folder Links: LM76005



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