參數(shù)資料
型號： MAX1715
廠商： Maxim Integrated Products, Inc.
英文描述： Ultra-High Efficiency, Dual Step-Down Controller for Notebook Computers
中文描述： 超高效率、雙路降壓型控制器，用于筆記本電腦
文件頁數(shù)： 11/28頁
文件大?。?/td> 308K
代理商： MAX1715
M
Ultra-High Efficiency, Dual Step-Down
Controller for Notebook Computers
______________________________________________________________________________________
11
The power input and +5V bias inputs can be connected
together if the input source is a fixed +4.5V to +5.5V
supply. If the +5V bias supply is powered up prior to
the battery supply, the enable signal (ON1, ON2) must
be delayed until the battery voltage is present to ensure
start-up. The +5V bias supply must provide V
CC
and
gate-drive power, so the maximum current drawn is:
I
BIAS
= I
CC
+ f (QG1 + QG2) = 5mA to 30mA (typ)
where ICC is 1mA typical, f is the switching frequency,
and QG1 and QG2 are the MOSFET data sheet total
gate-charge specification limits at V
GS
= 5V.
Free-Running, Constant-On-Time PWM
Controller with Input Feed-Forward
The Quick-PWM control architecture is a pseudo-fixed-
frequency, constant-on-time current-mode type with
voltage feed-forward (Figure 3). This architecture relies
on the output filter capacitor’s ESR to act as the cur-
rent-sense resistor, so the output ripple voltage pro-
vides the PWM ramp signal. The control algorithm is
simple: the high-side switch on-time is determined sole-
ly by a one-shot whose period is inversely proportional
to input voltage and directly proportional to output volt-
age. Another one-shot sets a minimum off-time (400ns
typ). The on-time one-shot is triggered if the error com-
parator is low, the low-side switch current is below the
Table 1. Component Selection for Standard Applications
Table 2. Component Suppliers
4.75V to 5.5V
600kHz
7V to 20V
345kHz
7V to 20V
255kHz
Input Range
Frequency
100μF, 10V
Sanyo POSCAP
10TPA100M
470μF, 4V Sanyo
POSCAP 4TPB470M
470μF, 4V Sanyo
POSCAP 4TPB470M
C2 Output Capacitor
100μF, 10V
Sanyo POSCAP
10TPA100M
10μF, 25V
Taiyo Yuden
TMK432BJ106KM
10μF, 25V
Taiyo Yuden
TMK432BJ106KM
C1 Input Capacitor
3.3μH
TOKO D73LC
3.1μH
Sumida CDRH125
4.4μH
Sumida CDRH125
L1 Inductor
—
Nihon EP10QY03
Nihon EP10QY03
D2 Rectifier
International Rectifier
1/2 IRF7301
Fairchild
Semiconductor
1/2 FDS6982A
Fairchild
Semiconductor
1/2 FDS6982A
Q2 Low-Side MOSFET
International Rectifier
1/2 IRF7301
Fairchild
Semiconductor
1/2 FDS6982A
Fairchild
Semiconductor
1/2 FDS6982A
Q1 High-Side MOSFET
3.3V at 1.5A
1.8V at 4A
2.5V at 4A
COMPONENT
[1] 602-994-6430
602-303-5454
814-237-1431
800-831-9172
Motorola
[1] 408-986-1442
[1] 714-960-6492
408-986-0424
714-969-2491
Kemet
Matsuo
[1] 408-721-1635
[1] 310-322-3332
408-822-2181
310-322-3331
Fairchild Semiconductor
International Rectifier
[1] 561-241-9339
561-241-7876
Coiltronics
[1] 847-639-1469
847-639-6400
Coilcraft
[1] 516-435-1824
516-435-1110
Central Semiconductor
[1] 803-626-3123
803-946-0690
AVX
FACTORY FAX
[Country Code]
USA PHONE
MANUFACTURER
[1] 408-573-4159
[1] 847-390-4405
[1] 708-699-1194
408-573-4150
847-390-4461
800-PIK-TOKO
Taiyo Yuden
TDK
TOKO
[1] 603-224-1430
[81] 3-3607-5144
603-224-1961
847-956-0666
Sprague
Sumida
[1] 408-970-3950
408-988-8000
800-554-5565
Siliconix
[81] 7-2070-1174
619-661-6835
Sanyo
[81] 3-3494-7414
805-867-2555*
NIEC (Nihon)
[1] 814-238-0490
Murata
*Distributor
7V to 20V
255kHz
(2) 470μF, 6V Kemet
T510X477108M0
06AS
(2) 10μF, 25V
Taiyo Yuden
TMK432BJ106KM
1.5μH Sumida
CEP125-1R5MC
Motorola
MBRS340T3
Fairchild
Semiconductor
FDS6670A
International
Rectifier IRF7811
1.3V at 8A
7V to 20V
255kHz
330μF, 6V AVX
TPSV337M006R
0060
10μF, 25V
Taiyo Yuden
TMK432BJ106KM
6.8μH
Coiltronics UP2B
Nihon EP10QY03
Fairchild
Semiconductor
1/2 FDS6990A
Fairchild
Semiconductor
1/2 FDS6990A
5V at 3A
相關PDF資料
PDF描述
MAX1715EEI Ultra-High Efficiency, Dual Step-Down Controller for Notebook Computers
MAX1717 Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP
MAX1717EEG Replaced by TMS320VC5506 : Digital Signal Processors 100-LQFP
MAX1718EEI Notebook CPU Step-Down Controller for Intel Mobile Voltage Positioning IMVP-II
MAX1718 Replaced by TMS320VC5506 : Digital Signal Processors 100-LQFP -40 to 85
相關代理商/技術參數(shù)
參數(shù)描述
MAX1715EEI 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(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1715EEI+ 功能描述:DC/DC 開關控制器 Dual Step-Down Controller 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(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1715EEI+T 功能描述:DC/DC 開關控制器 Dual Step-Down Controller 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(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1715EEI-T 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(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
MAX1715EVKIT 功能描述:DC/DC 開關控制器 Evaluation Kit for the MAX1715 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(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
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