參數(shù)資料
型號(hào): LTC4222IUH#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32
封裝: 5 X 5 MM, LEAD FREE, PLASTIC, MO-220WHHD-X, QFN-32
文件頁數(shù): 27/32頁
文件大?。?/td> 280K
代理商: LTC4222IUH#PBF
LTC4222
4
4222fa
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
Other Pin Functions
VGPIO(OL)
GPIO Output Low Voltage
IGPIO = 5mA
l
0.25
0.4
V
IGPIO(OH)
GPIO Input Leakage Current
VGPIO = 15V
l
0±1
μA
ISOURCE
SOURCE Input Current
SOURCE = 15V
l
70
115
170
μA
tP(GATE)
Input (ON, OV, UV, EN) to GATE Off
Propagation Delay
l
35
μs
tD(GATE)
GATE Turn-On Delay
ON
UV, OV, EN
Overcurrent Auto-Retry
l
75
4.2
4
100
5
8
125
6.7
μs
ms
s
VTIMERL(TH)
TIMER Low Threshold
l
0.18
0.2
0.22
V
VTIMERH(TH)
TIMER High Threshold
l
1.215
1.235
1.255
V
ITIMER(UP)
TIMER Pull-Up Current
l
90
100
110
μA
ITIMER(DOWN)
TIMER Pull-Down Current for OC
Auto-Retry
l
1.6
2.15
2.6
μA
ITIMER(UP/DOWN)
TIMER Pin OC Auto-Retry Duty Cycle
l
38
50
58
N/A
ISS
Soft-Start Ramp Pull-Up Current
Ramping
Waiting for GATE to Slew
l
7.5
0.5
10
0.75
12.5
0.95
μA
ADC
RES
Resolution (No Missing Codes)
l
10
Bits
VFS
Full-Scale Voltage (1023 VLSB)(VDD – SENSE)
SOURCE
ADIN
l
64
32
1.28
mV
V
LSB
LSB Step Size
(VDD – SENSE)
SOURCE
ADIN
l
62.5
31.25
1.25
μV
mV
VOS
Offset Error
(VDD – SENSE)
SOURCE
ADIN
l
±3
±2
LSB
INL
Integral Nonlinearity
(Note 5)
l
±0.5
LSB
TUE
Total Unadjusted Error/Full-Scale Error
(VDD – SENSE)
SOURCE
ADIN
l
±1.5
±1
%
RADIN
ADIN Sampling Resistance
VADIN = 1.28V
l
12
M
Ω
IADIN
ADIN Input Current
VADIN = 1.28V
l
0
±0.1
μA
Conversion Rate
15
Hz
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