參數(shù)資料
型號: LTC4215IUFD-2
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
封裝: 4 X 5 MM, PLASTIC, MO-220, QFN-24
文件頁數(shù): 23/28頁
文件大?。?/td> 261K
代理商: LTC4215IUFD-2
LTC4215/LTC4215-2
4
4215fe
ELECTRICAL CHARACTERISTICS 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
Comparator Inputs
VON(TH)
ON Pin Threshold Voltage
VON Rising
l
1.210
1.235
1.26
V
ΔVON(HYST)
ON Pin Hysteresis
l
60
128
180
mV
ION(IN)
ON Pin Input Current
VON = 1.2V
l
0
±1
μA
VEN(TH)
EN Input Threshold
VEN = Rising
l
1.215
1.235
1.255
V
ΔVEN(HYST)
EN Hysteresis
l
50
128
200
mV
IEN
EN Pin Input Current
EN = 3.5V
l
0
±1
μA
VOV(TH)
OV Pin Threshold Voltage
VOV Rising
l
1.215
1.235
1.255
V
ΔVOV(HYST)
OV Pin Hysteresis
l
10
30
40
mV
IOV(IN)
OV Pin Input Current
VOV = 1.8V
l
0
±1
μA
VUV(TH)
UV Pin Threshold Voltage
VUV Rising
l
1.215
1.235
1.255
V
ΔVUV(HYST)
UV Pin Hysteresis
l
60
80
100
mV
IUV(IN)
UV Pin Input Current
VUV = 1.8V
l
0
±1
μA
VUV(RTH)
UV Pin Reset Threshold Voltage
VUV Falling
l
0.33
0.4
0.47
V
ΔVUV(RHYST)
UV Pin Reset Threshold Hysteresis
l
60
125
210
mV
VFB
Foldback Pin Power Good Threshold
FB Rising
l
1.215
1.235
1.255
V
ΔVFB(HYST)
FB Pin Power Good Hysteresis
l
38
15
mV
IFB
Foldback Pin Input Current
FB = 1.8V
l
0
±1
μA
VGPIO(TH)
GPIO Pin Input Threshold
VGPIO Rising
l
0.8
1
1.2
V
Other Pin Functions
VGPIO(OL)
GPIO Pin Output Low Voltage
IGPIO = 5mA
l
0.25
0.5
V
IGPIO(OH)
GPIO Pin Input Leakage Current
VGPIO = 15V
l
0
±1
μA
ISOURCE
SOURCE Pin Input Current
SOURCE = 15V
l
40
80
120
μA
tP(GATE)
Input (ON, OV, UV, EN) to GATE Off
Propagation Delay
l
35
μs
tD(GATE)
Turn-On Delay
ON
UV, OV, EN
Overcurrent Auto-Retry
l
50
2.5
1
100
5
2
150
75
μs
ms
s
VTIMERL(TH)
Timer Low Threshold
l
0.17
0.2
0.23
V
VTIMERH(TH)
Timer High Threshold
l
1.2
1.235
1.26
V
ITIMER(UP)
TIMER Pin Pull-Up Current
l
–80
–100
–120
μA
ITIMER(DOWN)
TIMER Pin Pulldown Current for OC Auto-Retry
l
1.4
2
2.6
μA
ITIMER(UP/DOWN) TIMER Current Up/Down Ratio
l
40
50
60
ISS
Soft-Start Ramp Pull-Up Current
Ramping
Waiting for GATE to Slew
l
–7.5
–0.4
–10
–0.7
–12.5
–1.0
μA
ADC
RES
Resolution (No Missing Codes)
l
8
Bits
INL
Integral Nonlinearity
VDD – SENSE (Note 5)
SOURCE
ADIN
l
–2
–1.25
0.5
0.2
2
1.25
LSB
VOS
Offset Error (Note 4)
VDD – SENSE
SOURCE
ADIN
l
±2.0
±1.0
LSB
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