參數(shù)資料
型號(hào): LTC3880EUJ-1#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 0.1 A DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC40
封裝: 6 X 6 MM, LEAD FREE, PLASTIC, WJJD-2, QFN-40
文件頁數(shù): 69/112頁
文件大?。?/td> 2182K
代理商: LTC3880EUJ-1#PBF
LTC3880/LTC3880-1
6
3880fa
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at TA = 25°C. (Note 2) VIN = 12V, VRUN0,1 = 3.3V, fSYNC = 500kHz (externally
driven) unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V0THACC0
Threshold Accuracy 2V < VOUT0 < 4V
Range Value = 0
l
±2
%
V0THACC1
Threshold Accuracy 1V < VOUT0 < 2.5V
Range Value = 1
l
±2
%
tPROPOV0
OV Comparator Response Time
VOD = 10% of Threshold
35
s
tPROPUV0
UV Comparator Response Time
VOD = 10% of Threshold
100
s
OV/UV Output Voltage Supervisor Channel 1
N
Resolution
8
bits
V1RANGE0
Voltage Range
Range Value = 0
1
5.5
V
V1RANGE1
Voltage Range
Range Value = 1
0.5
2.7
V
V1OUSTP0
Step Size
Range Value = 0
22
mV
V1OUSTP1
Step Size
Range Value = 1
11
mV
V1THACC0
Threshold Accuracy 2V < VOUT1 < 5V
Range Value = 0
l
±2
%
V1THACC1
Threshold Accuracy 1V < VOUT1 < 2.5V
Range Value = 1
l
±2
%
tPROPOV1
OV Comparator to GPIO Low Time
VOD = 10% of Threshold
35
s
tPROPUV1
UV Comparator to GPIO Low Time
VOD = 10% of Threshold
100
s
VIN Voltage Supervisor
N
Resolution
8
bits
VINRANGE
Full-Scale Voltage
4.5
20
V
VINSTP
Step Size
82
mV
VINTHACC
Threshold Accuracy 9.0V < VIN < 20V
l
±2.5
%
VINTHACC\M
Threshold Accuracy 4.5V < VIN ≤ 9V
l
±5
%
tPROPVIN
Comparator Response Time
(VIN_ON and VIN_OFF)
VOD = 10% of Threshold
100
s
Output Voltage Readback
N
Resolution
LSB Step Size
16
244
Bits
V
VOFS
Full-Scale Voltage
(Note 10) VRUNn = 0V (Note 8)
8
V
VOUT_TUE
Total Unadjusted Error
(Note 8) VOUTn > 0.6V
l
0.5
%
VOS
Zero-Code Offset Voltage
±500
V
tCONVERT
Conversion Time
(Note 6)
120
ms
VIN Voltage Readback
N
Resolution
(Note 5)
10
Bits
VIFS
Full-Scale Voltage
(Note 11)
38.91
V
VIN_TUE
Total Unadjusted Error
VVIN > 4.5V (Note 8)
l
0.5
2
%
tCONVERT
Conversion Time
(Note 6)
120
ms
Output Current Readback
N
Resolution
LSB Step Size
(Note 5)
0V ≤ |VISENSE+ – VISENSE–| ≤ 15.625mV
16mV ≤ |VISENSE+ – VISENSE–| ≤ 31.25mV
32mV ≤ |VISENSE+ – VISENSE–| ≤ 62.5mV
64mV ≤ |VISENSE+ – VISENSE–| ≤ 125mV
10
V15.26
30.52
61
122
Bits
V
IFS
Full-Scale Current
(Note 7) RISENSE = 1mΩ
±128
A
IOUT_TUE
Total Unadjusted Error
(Note 8) VISENSE > 6mV (Note 15)
l
±1
%
VOS
Zero-Code Offset Voltage
±28
V
tCONVERT
Conversion Time
(Note 6)
120
ms
Input Current and Duty Cycle Readback
D_RES
Resolution
10
Bits
D_TUE
Total Unadjusted Error
16.3% Duty Cycle
–3
3
%
tCONVERT
Update Rate
(Note 6)
120
ms
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