參數(shù)資料
型號： MAX1875-MAX1876
廠商： Maxim Integrated Products, Inc.
英文描述： Dual 180∑ Out-of-Phase PWM Step- Down Controllers with POR
中文描述： 雙180Σ外的三相PWM降壓控制器的復(fù)位
文件頁數(shù)： 3/21頁
文件大?。?/td> 493K
代理商： MAX1875-MAX1876
M
Dual 180° Out-of-Phase PWM Step-
Down Controllers with POR
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 12V, EN = ILIM_ = V
L
, SYNC = GND, I
VL
= 0mA, PGND = GND, C
REF
= 0.22μF, C
VL
= 4.7μF (ceramic), R
OSC
= 60k
,
compensation components for COMP_ are from Figure 1,
T
A
= -40
°
C to +85
°
C
(Note 1), unless otherwise noted.)
PARAMETER
CONDITIONS
Internal oscillator nominal frequency must be set to half
of the SYNC frequency
High
SYNC Input Pulse Width
(Note 3)
Low
SYNC Rise/Fall Time
(Note 3)
ERROR AMPLIFIER
FB_ Input Bias Current
0
°
C to +85
°
C
FB_ Input Voltage Set Point
-40
°
C to +85
°
C
0
°
C to +85
°
C
FB_ to COMP_ Transconductance
-40
°
C to +85
°
C
DRIVERS
DL_, DH_ Break-Before-Make Time
C
LOAD
= 5nF
Low
DH_ On-Resistance
High
Low
DL_ On-Resistance
High
LOGIC INPUTS (EN, SYNC)
Input Low Level
Typical 15% hysteresis, V
L
= 4.75V
Input High Level
V
L
= 5.5V
Input High/Low Bias Current
V
EN
= 0 or 5.5V
LOGIC OUTPUTS (CKO)
Output Low Level
V
L
= 5V, sinking 5mA
Output High Level
V
L
= 5V, sourcing 5mA
COMP_
Pulldown Resistance During
Shutdown and Current Limit
RST
OUTPUT (MAX1876 ONLY)
Both FBs must be over this to allow the reset timer to
start; there is no hysteresis
V
L
= 5V, sinking 3.2mA
Output Low Level
V
L
= 1V, sinking 0.4mA
Output Leakage
V+ = V
L
= 5V, V
RST
= 5.5V, V
FB
= 1V
Reset Timeout Period
V
FB_
= 1V
FB_ to Reset Delay
FB_ overdrive from 1V to 0.85V
MIN
TYP
MAX
UNITS
SYNC Range
200
1200
kHz
100
100
ns
100
ns
250
1.015
1.02
2.70
2.9
nA
0.985
0.98
1.25
1.2
1.00
1.00
1.8
1.8
V
mS
30
1.5
3
0.6
3
ns
2.5
5
1.5
5
0.8
+1
V
V
μA
2.4
-1
0.1
0.4
V
V
4.0
17
Output-Voltage Trip Level
0.87
0.9
0.93
V
0.4
0.3
1
560
V
μA
ms
μs
140
315
4
Note 1:
Specifications to -40
°
C are guaranteed by design and not production tested.
Note 2:
Operating supply range is guaranteed by V
L
line regulation test. Connect V+ to V
L
for 5V operation.
Note 3:
Guaranteed by design and not production tested.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1876AEEG 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
MAX1876AEEG+ 功能描述:電壓模式 PWM 控制器 Dual 180 Out PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1876AEEG+T 功能描述:電壓模式 PWM 控制器 Dual 180 Out PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX1876AEEG-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
MAX1876EEG 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
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