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)： 5/33頁
文件大?。?/td> 840K
代理商： MAX1855
M
High-Speed, Adjustable, Synchronous Step-Down
Controllers with Integrated Voltage Positioning
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = +15V, V
CC
= V
DD
= 5V,
SKIP
= V
CC
, VPS = PGND,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.) (Note 6)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PWM CONTROLLER
Battery voltage, V+
V
CC
, V
DD
2
28
5.5
Input Voltage Range
4.5
V
DAC codes from
1.35V to 2.0V
-1.6
1.6
DC Output Voltage Accuracy
(Notes 2, 3)
V+ = 4.5V to 28V,
VPS = PGND
DAC codes from
0.6V to 1.3V
-2
2
%
FB Input Bias Current
VPS Input Bias Current
VPS Gain
CS Input Bias Current
ILIM Input Leakage Current
I
FB
I
VPS
A
VPS
I
CS
I
ILIM
FB = 0.6V to 2.0V
V
VPS
=
±
40mV
V
VPS
= 0 or -40mV, gain from VPS to FB
0 to 28V
V
ILIM
= 0 or 5.0V
-0.2
-1
0.153
-1
0.2
1
0.197
1
100
300
375
520
740
500
μ
A
μ
A
%/mV
μ
A
nA
TON = GND
TON = REF
TON = open
TON = V
CC
205
280
425
615
On-Time (Note 4)
t
ON
V+ = 11.0V,
V
FB
= 1.5V
ns
Minimum Off-Time (Note 4)
BIAS AND REFERENCE
t
OFF( M N)
ns
Quiescent Supply Current (V
CC
)
I
CC
Measured at V
CC
, FB forced above the
regulation point
950
μ
A
Quiescent Supply Current (V
DD
)
I
DD
Measured at V
DD
, FB forced above the
regulation point
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
FAULT PROTECTION
I+
40
5
5
5
2.02
0.01
μ
A
μ
A
μ
A
μ
A
V
V
μ
A
SHDN
= GND
SHDN
= GND
S HDN
= GN D V + = 28V V
C C
= V
D D
= 0 or 5V
V
CC
= 4.5V to 5.5V, no external REF load
I
REF
= 0 to 50
μ
A
REF in regulation
V
REF
1.98
I
REF
10
MAX1716
MAX1855
1.8
1.97
2.0
2.03
V
Output Overvoltage Fault
Threshold (Note 5)
Measured at FB
Output Undervoltage Fault
Threshold (Foldback)
35
45
%
Output Undervoltage Fault
Blanking Time (Foldback)
From
SHDN
signal going high
10
30
ms
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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*