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| 型號： | MAX1540AETJ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Dual Step-Down Controllers with Saturation Protection, Dynamic Output, and Linear Regulator |
| 中文描述： | DUAL SWITCHING CONTROLLER, 620 kHz SWITCHING FREQ-MAX, QCC32 |
| 封裝： | 5 X 5 MM, 0.80 MM HEIGHT, MO-220-WHHD-2, TQFN-32 |
| 文件頁數(shù)： | 6/49頁 |
| 文件大小： | 794K |
| 代理商： | MAX1540AETJ |
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M
Dual Step-Down Controllers with Saturation
Protection, Dynamic Output, and Linear Regulator
6
_______________________________________________________________________________________
Dual Mode is a trademark of Maxim Integrated Products, Inc.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Valley Current-Limit Threshold
(Fixed)
V
LIM
_
(VAL)
V
CSP
_ - V
CSN
_, ILIM_ = V
CC
45
50
55
mV
V
ILIM
_ = 250mV
V
ILIM
_ = 2.00V
15
170
25
200
35
230
Valley Current-Limit Threshold
(Adjustable)
V
LIM
_
(VAL)
V
CSP
_ - V
CSN
_
mV
Current-Limit Threshold
(Negative)
V
NEG
V
CSP
_ - V
CSN
_,
SKIP
= ILIM_ = V
CC
,
T
A
= +25°C
-90
-65
-45
mV
Current-Limit Threshold
(Zero Crossing)
V
ZX
With respect to valley current-limit
threshold, V
CSP
_ - V
CSN
_,
SKIP
= GND,
ILIM_ = V
CC
2.5
mV
LSAT = V
CC
180
200
220
LSAT = open
157
175
193
Inductor-Saturation Current-Limit
Threshold
With respect to
valley current-
limit threshold,
ILIM_ = V
CC
LSAT = REF
135
150
165
%
ILIM_ Saturation Fault Sink
Current
I
ILIM
_
(LSAT)
V
CSP
- V
CSN
> inductor saturation current
limit, 0.25V < V
ILIM
_ < 2.0V
4
6
8
μA
ILIM_ Leakage Current
V
CSP
_ - V
CSN
_
< inductor saturation current
limit
0.1
μA
GATE DRIVERS
DH_ Gate-Driver On-Resistance
R
DH
BST_-LX_ forced to 5V
DL_, high state
DL_, low state
1.5
1.5
0.6
5
5
3
Ω
DL_ Gate-Driver On-Resistance
R
DL
Ω
DH_ Gate-Driver Source/Sink
Current
I
DH
DH_ forced to 2.5V, BST_-LX_ forced to 5V
1
A
DL_ Gate-Driver Source Current
I
DL
(SOURCE)
I
DL (SINK)
DL_ forced to 2.5V
1
A
DL_ Gate-Driver Sink Current
DL_ forced to 2.5V
DL_ rising
DH_ rising
3
35
26
A
Dead Time
t
DEAD
ns
INPUTS AND OUTPUTS
OD On-Resistance
OD Leakage Current
R
OD
GATE = V
CC
GATE = GND, OD forced to 5.5V
10
1
25
200
Ω
nA
Logic Input Threshold
ON1, ON2,
SKIP
, GATE rising edge,
hysteresis = 225mV
1.2
1.7
2.2
V
LDOON Input Trip Level
Logic Input Current
Rising edge, hysteresis = 250mV
ON1, ON2, LDOON,
SKIP
, GATE
1.20
-1
1.25
1.30
+1
V
μA
High
1.9
2.0
2.1
Dual Mode Threshold Voltage
FB1 ( M AX 1540A)
FB2 ( M AX 1540A/
M AX1541)
Low
0.05
0.1
0.15
V
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, V
CC
= V
DD
= ON1 = ON2 = 5V,
SKIP
= GND, LDOIN (MAX1541) = V+,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical
values are at T
A
= +25
°
C.)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1540AETJ+ | 功能描述:DC/DC 開關(guān)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(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 |
| MAX1540AETJ+T | 功能描述:DC/DC 開關(guān)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(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 |
| MAX1540ETJ | 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 |
| MAX1540ETJ+ | 功能描述:DC/DC 開關(guān)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(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 |
| MAX1540ETJ+T | 功能描述:DC/DC 開關(guān)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(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 |
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