參數(shù)資料
型號(hào)： LTC4219IDHC-12#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
封裝： 5 X 3 MM, LEAD FREE, PLASTIC, MO-229WJED-1, DFN-16
文件頁(yè)數(shù)： 13/18頁(yè)
文件大?。?/td> 195K
代理商： LTC4219IDHC-12#TRPBF
LTC4219
4
4219fb
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into pins are positive, all voltages are referenced to
GND unless otherwise specied.
Note 3: An internal clamp limits the GATE pin to a maximum of 6.5V
above OUT. Driving this pin to voltages beyond the clamp may damage the
device.
The
l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VDD = 12V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Outputs
VINTVCC
INTVCC Output Voltage
VDD = 5V, 15V
ILOAD = 0mA, –10mA
l
2.8
3.1
3.2
V
VOL
PG, FLT Pin Output Low Voltage
IOUT = 2mA
l
0.4
0.8
V
IOH
PG, FLT Pin Input Leakage Current
VOUT = 30V
l
0
±10
μA
VTIMER(H)
TIMER Pin High Threshold
VTIMER Rising
l
1.2
1.235
1.28
V
VTIMER(L)
TIMER Pin Low Threshold
VTIMER Falling
l
0.1
0.21
0.3
V
ITIMER(UP)
TIMER Pin Pull-Up Current
VTIMER = 0V
l
–80
–100
–120
μA
ITIMER(DN)
TIMER Pin Pull-Down Current
VTIMER = 1.2V
l
1.4
2
2.6
μA
ITIMER(RATIO)
TIMER Pin Current Ratio ITIMER(DN)/ITIMER(UP)
l
1.6
2
2.7
%
AIMON
IMON Pin Current Gain
IOUT = 2.5A
l
18.5
20
21.5
μA/A
IOFF(IMON)
IMON Pin Offset Current
IOUT = 150mA
l
0
±4.5
μA
IGATE(UP)
Gate Pull-Up Current
Gate Drive On, VGATE = VOUT = 12V
l
–19
–24
–29
μA
IGATE(DN)
Gate Pull-Down Current
Gate Drive Off, VGATE = 18V, VOUT = 12V
l
190
250
340
μA
IGATE(FST)
Gate Fast Pull-Down Current
Fast Turn Off, VGATE = 18V, VOUT = 12V
140
mA
AC Characteristics
tPHL(GATE)
Input High (EN1, EN2) to Gate Low
Propagation Delay
VGATE < 16.5V Falling
l
810
μs
tPHL(ILIM)
Short Circuit to Gate Low
VFB = 0, Step ISENSE to 6A,
VGATE < 15V Falling
l
15
μs
tD(ON)
Turn-On Delay
Step VEN1 and VEN2 to 0V, VGATE > 13V
l
50
100
150
ms
tD(CB)
Circuit Breaker Filter Delay Time (Internal)
VFB = 0V, Step ISENSE to 3A
l
1.5
2
2.7
ms
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specied maximum operating junction
temperature may impair device reliability.
Note 5: TJ is calculated from the ambient temperature, TA, and power
dissipation, PD, according to the formula:
TJ = TA + (PD 43°C/W)
相關(guān)PDF資料
PDF描述
LTC4219IDHC-5#PBF 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
LTC4219CDHC-5#PBF 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
LTC4224CMS-1#PBF 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
LTC4224CDDB-2#PBF 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
LTC4224IDDB-2#PBF 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
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