參數資料
型號： MAX1540A
廠商： Maxim Integrated Products, Inc.
英文描述： Dual Step-Down Controllers with Saturation Protection, Dynamic Output, and Linear Regulator
中文描述： 雙路、降壓型控制器，帶有電感飽和保護、動態(tài)輸出和線性穩(wěn)壓器
文件頁數： 9/49頁
文件大?。?/td> 794K
代理商： MAX1540A
M
Dual Step-Down Controllers with Saturation
Protection, Dynamic Output, and Linear Regulator
_______________________________________________________________________________________
9
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, V
CC
= V
DD
= ON1 = ON2 = 5V,
SKIP
= GND, LDOIN (MAX1541) = V+,
T
A
= -40°C to +85°C
, unless otherwise noted.)
(Note 4)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
0 < I
LDOOUT
< 10mA
4.85
5.10
MAX1541 LDO Output-Voltage
Accuracy (Fixed V
LDOOUT
)
V
LDOOUT
FBLDO = ON1 =
ON2 = GND,
V
LDOIN
= 6V to 28V
FBLDO = LDOOUT,
ON1 = ON2 = GND,
V
LDOIN
= 4.5V to
28V
MAX1540A: V+ - V
LDOOUT
, I
LDOOUT
= 50mA
MAX1541: V
LDOIN
- V
LDOOUT
,
I
LDOOUT
= 50mA
0 < I
L D OOU T
< 100m A
4.65
5.10
V
0 < I
LDOOUT
< 10mA
1.212
1.275
MAX1541 LDO Feedback
Accuracy (Adjustable V
LDOOUT
)
V
FBLDO
0 < I
L D OOU T
< 100m A
1.175
1.275
V
800
Dropout Voltage
800
mV
REFERENCE (REF)
Reference Voltage
REFIN1 Input Bias Current
FAULT DETECTION
V
REF
I
REFIN1
V
CC
= 4.5V to 5.5V, I
REF
= 0
1.98
2.02
0.05
V
μA
Overvoltage Trip Threshold
With respect to error-comparator threshold,
OVP/UVP = V
CC
10
21
%
Output Undervoltage-Protection
Trip Threshold
With respect to error-comparator threshold,
OVP/UVP = V
CC
64
76
%
PGOOD_ Lower Trip Threshold
With respect to error-comparator threshold,
hysteresis = 1%
-14
-5
%
PGOOD_ Upper Trip Threshold
With respect to error-comparator threshold,
hysteresis = 1%
+5
+14
%
PGOOD_ Output Low Voltage
I
SINK
= 4mA
Rising edge, PWM disabled below this
level, hysteresis = 20mV
0.3
V
V
CC
Undervoltage-Lockout
Threshold
V
UVLO(VCC)
4.1
4.4
V
CURRENT LIMIT
CSP_
0
2.7
Current-Limit Input Range
CSN_
-0.3
+28.0
V
Valley Current-Limit Threshold
(Fixed)
V
LIM
_
(VAL)
V
CSP
_ - V
CSN
_, ILIM_ = V
CC
40
60
mV
Valley Current-Limit Threshold
(Adjustable)
V
LIM
_
(VAL)
V
CSP
_ - V
CSN
_, V
ILIM
_ = 2.00V
160
240
mV
INPUTS AND OUTPUTS
Logic Input Threshold
ON1, ON2,
SKIP
, GATE, rising edge,
hysteresis = 225mV
1.2
2.2
V
LDOON Input Trip Level
Rising edge, hysteresis = 250mV
1.2
1.9
0.05
1.3
2.1
0.15
V
High
Low
Dual Mode Threshold Voltage
FB1 (MAX1540A),
FB2 (MAX1540A/MAX1541)
V
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相關代理商/技術參數
參數描述
MAX1540AETJ+ 功能描述:DC/DC 開關控制器 Dual Step-Down Ctlr w/Saturation Prot RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1540AETJ+T 功能描述:DC/DC 開關控制器 Dual Step-Down Ctlr w/Saturation Prot RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1540ETJ 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1540ETJ+ 功能描述:DC/DC 開關控制器 Dual Step-Down Ctlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1540ETJ+T 功能描述:DC/DC 開關控制器 Dual Step-Down Ctlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
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