參數(shù)資料
型號： MAX1887
廠商： Maxim Integrated Products, Inc.
英文描述： Quick-PWM Slave Controllers for Multiphase, Step-Down
中文描述： Quick-PWM從控制器，用于多相、降壓型電源
文件頁數(shù)： 2/33頁
文件大?。?/td> 1018K
代理商： MAX1887
M
Quick-PWM Slave Controllers for
Multiphase, Step-Down Supplies
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V+ to GND..............................................................-0.3V to +30V
V
CC
, V
DD
to GND (Note 3) .......................................-0.3V to +6V
PGND to GND.....................................................................±0.3V
TRIG, LIMIT to GND .................................................-0.3V to +6V
SHDN
to GND (MAX1897)........................................-0.3V to +6V
ILIM, CM+, CM-, CS+, CS-, COMP
to GND....................................................-0.3V to (V
CC
+ 0.3V)
TON, POL to GND (MAX1897)...................-0.3V to (V
CC
+ 0.3V)
DL to PGND................................................-0.3V to (V
DD
+ 0.3V)
BST to GND............................................................-0.3V to +36V
DH to LX....................................................-0.3V to (V
BST
+ 0.3V)
LX to BST..................................................................-6V to +0.3V
Continuous Power Dissipation (T
A
= +70
°
C)
16-Pin QSOP (derate 8.3mW/
°
C above +70
°
C)...........667mW
20-Pin 5mm x 5mm QFN (derate 20.0mW/
°
C
above +70
°
C)..............................................................1.60W
Operating Temperature Range ...........................-40
°
C to +85
°
C
Junction Temperature......................................................+150
°
C
Storage Temperature Range.............................-65
°
C to +150
°
C
Lead Temperature (soldering, 10s).................................+300
°
C
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, V
CC
= V
DD
= 5V, V
OUT
= V
COMP
= 1.2V, V
CM+
= V
CM-
= V
CS+
= V
CS-
= 1.2V,
SHDN
= V
CC
(MAX1897),
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
PWM CONTROLLER
Battery voltage, V+
V
CC
, V
DD
M AX 1887 ( 300kH z) V + = 12V V
C OM P
= 1.2V
4.0
4.5
320
171
320
464
28.0
5.5
390
209
390
566
Input Voltage Range
V
355
190
355
515
75
TON = GND
TON = open
TON = V
CC
On-Time (Note 1)
t
ON
MAX1897,
V+ = 12V,
V
COMP
= 1.2V
ns
Trigger Delay (Note 2)
SUPPLY CURRENTS
Quiescent Supply Current (V+)
t
TRIG
ns
I+
Measured at V+; V
ILIM
> 0.35V
Measured at V
DD
; V
ILIM
> 0.35V
25
525
<1
40
800
5
μA
MAX1887
MAX1897
Quiescent Supply Current (V
DD
)
(Note 3)
I
DD
μA
Quiescent Supply Current (V
CC
)
(MAX1897, Note 3)
I
CC
Measured at V
CC
; V
ILIM
> 0.35V
525
800
μA
Standby Supply Current (V+)
Measured at V+; ILIM = GND
<1
20
<1
5
40
5
μA
MAX1887
MAX1897
Standby Supply Current (V
DD
)
(Note 3)
Measured at V
DD
; ILIM
= GND
μA
Standby Supply Current (V
CC
)
(MAX1897, Note 3)
Measured at V
CC
; ILIM = GND
20
40
μA
Shutdown Supply Current (V+)
(MAX1897)
Measured at V+; V
CC
= V
DD
= 0 or 5V,
SHDN
= GND
<1
5
μA
Shutdown Supply Current (V
DD
)
(MAX1897, Note 3)
Measured at V
DD
;
SHDN
= GND
<1
5
μA
Shutdown Supply Current (V
CC
)
(MAX1897, Note 3)
Measured at V
CC
;
SHDN
= GND
<1
5
μA
相關PDF資料
PDF描述
MAX1889EGE Triple-Output TFT LCD Power Supply with Fault Protection
MAX1889ETE Triple-Output TFT LCD Power Supply with Fault Protection
MAX1889 Fixed-Point Digital Signal Processor 256-BGA
MAX1896 1.4MHz SOT23 Current-Mode Step-Up DC-DC Converter
MAX1896EUT-T Fixed-Point Digital Signal Processor 532-FCBGA
相關代理商/技術參數(shù)
參數(shù)描述
MAX1887EEE 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX1887EEE+ 功能描述:電流型 PWM 控制器 CDMA Cellular/PCS System Power Supplies RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX1887EEE+T 功能描述:電流型 PWM 控制器 CDMA Cellular/PCS System Power Supplies RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX1887EEE-T 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX1888EUA 功能描述:其他電源管理 RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
發(fā)布緊急采購，3分鐘左右您將得到回復。

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

*
*
*