參數(shù)資料
型號： MAX1855
廠商： Maxim Integrated Products, Inc.
元件分類： 數(shù)字信號處理
英文描述： Fixed-Point Digital Signal Processor 352-FC/CSP 0 to 0
中文描述： 高速、數(shù)字可調(diào)、同步降壓型控制器，集成電壓定位電路
文件頁數(shù)： 3/33頁
文件大?。?/td> 840K
代理商： MAX1855
M
High-Speed, Adjustable, Synchronous Step-Down
Controllers with Integrated Voltage Positioning
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = +15V, V
CC
= V
DD
= 5V,
SKIP
= V
CC
, VPS = PGND,
T
A
= 0
°
C to +85
°
C
, unless otherwise noted. Typical
values are at T
A
= +25
°
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
BIAS AND REFERENCE
Quiescent Supply Current (V
CC
)
I
CC
Measured at V
CC
, FB forced above the
regulation point
700
950
μ
A
Quiescent Supply Current (V
DD
)
I
DD
Measured at V
DD
, FB forced above the
regulation point
<1
5
μ
A
Quiescent Supply Current (V+)
Shutdown Supply Current (V
CC
)
Shutdown Supply Current (V
DD
)
Shutdown Supply Current (V+)
Reference Voltage
Reference Load Regulation
REF Sink Current
REF Fault Lockout Voltage
FAULT PROTECTION
I+
25
<1
<1
<1
2
40
5
5
5
2.02
0.01
μ
A
μ
A
μ
A
μ
A
V
V
μ
A
V
SHDN
= GND
SHDN
= GND
SHDN
= GND, V
CC
= V
DD
= 0 or 5V
V
CC
= 4.5V to 5.5V, no external REF load
I
REF
= 0 to 50
μ
A
REF in regulation
Falling edge
V
REF
1.98
I
REF
10
1.6
MAX1716
MAX1855
1.8
1.97
1.9
2.0
2.0
2.03
Output Overvoltage Fault
Threshold (Note 5)
Measured at FB
V
Output Overvoltage Fault
Propagation Delay (Note 5)
FB forced to 2% above trip threshold
(MAX1716/MAX1855 only)
1.5
μ
s
Output Undervoltage Fault
Threshold (Foldback)
35
40
45
%
Output Undervoltage Fault
Propagation Delay
FB forced to 2% below trip threshold
10
μ
s
Output Undervoltage Fault
Blanking Time (Foldback)
From
SHDN
signal going high
10
30
ms
Current-Limit Threshold
(Positive, Default)
V
ITH
V
PGND
- V
CS
, ILIM = V
CC
110
120
130
mV
V
ILIM
= 0.5V
V
ILIM
= 2V (REF)
40
170
50
200
60
230
Current-Limit Threshold
(Positive, Adjustable)
V
ITH
V
PGND
- V
CS
mV
Negative Current-Limit
Threshold
V
PGND
- V
CS
-1.2
×
V
ITH
mV
Zero-Crossing Current-Limit
Threshold
V
PGND
- V
CS
3
mV
Thermal Shutdown Threshold
Hysteresis = 10
°
C
150
°
C
V
CC
Undervoltage Lockout
Threshold
Rising edge, hysteresis = 20mV, switching
disabled below this level
4.0
4.45
V
相關(guān)PDF資料
PDF描述
MAX1854EEG High-Speed, Adjustable, Synchronous Step-Down Controllers with Integrated Voltage Positioning
MAX1855EEG Replaced by TMS320C6202B : Fixed-Point Digital Signal Processor 352-FCBGA
MAX1854 High-Speed, Adjustable, Synchronous Step-Down Controllers with Integrated Voltage Positioning
MAX1857EUA47 500mA, Low-Dropout, Ripple-Rejecting LDO in MAX
MAX1857 Replaced by TMS320C6202B : Fixed-Point Digital Signal Processor 352-FCBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1855EEG 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1855EEG+ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX1855EEG-T 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1855EVKIT 功能描述:DC/DC 開關(guān)控制器 Evaluation Kit for the MAX1716 MAX1854 MAX1855 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1856EUB 功能描述:電信線路管理 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
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