參數(shù)資料
型號： MAX781
廠商： Maxim Integrated Products, Inc.
英文描述： PDA/Hand-Held Computer Power Controller
中文描述： PDA手持計(jì)算機(jī)電源控制器
文件頁數(shù)： 6/24頁
文件大?。?/td> 185K
代理商： MAX781
M
PDA/Hand-Held Computer Power Controller
6
_______________________________________________________________________________________
____________________________Typic al Operating Charac teristic s (c ontinued)
(T
A
= +25°C, unless otherwise noted.)
4
VPPA AND VPPB OUTPUT POWER
VPPA SHORTED TOVPPB AND
CLAMPED TO11.5V
M
BATT VOLTAGE (V)
V
6
8
10
12
14
16
18
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
50
100
150
200
250
300
350
400
CONFIGURATION = $FF, $00, $02, $6A,
SYNC = AGND, NO 3OUT LOAD
T1 TURNS RATIO (SECONDARY
TURNS / PRIMARY TURNS) = 3.5
VHI VOLTAGE
BATT INPUT CURRENT
VPPA + VPPB CURRENT
10
0
DCHG DUTY CYCLE vs. COMP VOLTAGE
M
COMP VOLTAGE (V)
D
20
30
40
50
60
70
80
90
0
0.5
1.0
1.5
2.0
2.5
3.0
AT 0% DUTY CYCLE,
DCHG = 5OUT
10
1
10
100
1000
3OUT OPERATE MODE POWER EFFICIENCY
(FIXED 300kHz SWITCHING FREQUENCY)
M
3OUT OUTPUT CURRENT (mA)
P
20
30
40
50
60
70
80
90
100
BATT = 5.5V
SYNC = REF
IDLE = 0
MODE1 = 1
MODE0 = 0
10
1
10
100
1000
3OUT OPERATE MODE POWER EFFICIENCY
(FIXED 230kHz SWITCHING FREQUENCY)
M
3OUT OUTPUT CURRENT (mA)
P
20
30
40
50
60
70
80
90
100
BATT = 5.5V
SYNC = AGND
IDLE = 0
MODE1 = 1
MODE0 = 0
10
1
10
100
1000
3OUT OPERATE MODE POWER EFFICIENCY
(FIXED 300kHz SWITCHING FREQUENCY)
M
3OUT OUTPUT CURRENT (mA)
P
20
30
40
50
60
70
80
90
100
BATT = 7.5V
SYNC = REF
IDLE = 0
MODE1 = 1
MODE0 = 0
10
1
10
100
1000
3OUT OPERATE MODE POWER EFFICIENCY
(VARIABLE SWITCHING FREQUENCY)
100
BATT = 5.5V
SYNC = REF
IDLE = 1
MODE1 = 1
MODE0 = 0
M
3OUT OUTPUT CURRENT (mA)
P
20
30
40
50
60
70
80
90
0
50
100
150
200
250
300
350
400
450
S
%
kHz
10
1
10
100
1000
3OUT OPERATE MODE POWER EFFICIENCY
(VARIABLE SWITCHING FREQUENCY)
100
BATT = 5.5V
SYNC = AGND
IDLE = 1
MODE1 = 1
MODE0 = 0
M
3OUT OUTPUT CURRENT (mA)
P
20
30
40
50
60
70
80
90
0
50
100
150
200
250
300
350
400
450
S
%
kHz
10
1
10
100
1000
3OUT OPERATE MODE POWER EFFICIENCY
(FIXED 230kHz SWITCHING FREQUENCY)
M
3OUT OUTPUT CURRENT (mA)
P
20
30
40
50
60
70
80
90
100
BATT = 7.5V
SYNC = AGND
IDLE = 0
MODE1 = 1
MODE0 = 0
10
1
10
100
1000
3OUT OPERATE MODE POWER EFFICIENCY
(VARIABLE SWITCHING FREQUENCY)
100
BATT = 7.5V
SYNC = REF
IDLE = 1
MODE1 = 1
MODE0 = 0
M
3OUT OUTPUT CURRENT (mA)
P
20
30
40
50
60
70
80
90
0
50
100
150
200
250
300
350
400
450
S
%
kHz
相關(guān)PDF資料
PDF描述
MAX781CBX PDA/Hand-Held Computer Power Controller
MAX781EBX PDA/Hand-Held Computer Power Controller
MAX783 Triple-Output Power-Supply Controller for Notebook Computers(3.3V/5V,具有雙組PCMCIA標(biāo)準(zhǔn)VPP輸出的筆記本電腦電源控制器)
MAX786 Dual-Output Power-Supply Controller for Notebook Computers(具有25μA關(guān)斷的,3.3V/5V筆記本型電腦電源)
MAX787 5V/3.3V/3V 5A Step-Down, PWM, Switch-Mode DC-DC Regulators(5A,5V步降,PWM,開關(guān)型DC-DC變換器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX781CBX 制造商:Maxim Integrated Products 功能描述:
MAX7828BQ 制造商:Maxim Integrated Products 功能描述:NON BOOK, REQUIRES NCNR, Q# - Rail/Tube
MAX7828UQ/883B 制造商:Maxim Integrated Products 功能描述:NON BOOK, REQUIRES NCNR, Q# - Rail/Tube
MAX782C/D 功能描述:DC/DC 開關(guān)控制器 Triple-Output Power-Supply Controller for Notebook Computers 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
MAX782C/D+ 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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