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參數(shù)資料
| 型號(hào)： | MAX1606 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 16-Bit Bus Transceivers And Registers With 3-State Outputs 56-TSSOP -40 to 85 |
| 中文描述： | 28V內(nèi)置開(kāi)關(guān)、LCD偏置電源，提供True Shutdown™ |
| 文件頁(yè)數(shù)： | 7/10頁(yè) |
| 文件大?。?/td> | 302K |
| 代理商： | MAX1606 |
M
28V Internal Switch LCD Bias Supply
with True Shutdown
_______________________________________________________________________________________
7
Detailed Description
The MAX1606 step-up DC-DC converter operates from a
2.4V to 5.5V supply and converts voltages as low as
0.8V up to 28V. The device includes an internal switch-
ing MOSFET with a 0.8
on-resistance and selectable
current limit (Figure 1) and consumes 160μA of supply
current. During startup, the MAX1606 extends the mini-
mum off-time, limiting initial battery surge current. The
MAX1606 uses a P-channel MOSFET to isolate the out-
put from the input during true shutdown mode. This isola-
tion switch also includes short-circuit current limiting,
which protects the inductor and diode during a short-cir-
cuit fault.
Control Scheme
The MAX1606 features a minimum off-time, current-limit-
ed control scheme. The duty cycle is governed by a pair
of one-shots that set a minimum off-time and a maximum
on-time. The switching frequency can be up to 500kHz
and depends upon the load and input voltage. The peak
current limit of the internal N-channel MOSFET is pin
selectable and may be set at 125mA, 250mA, or 500mA
(Figure 2).
N
ON
OFF
SHDN
V
IN
= 0.8V TO 5.5V
BATT
V
CC
LIM
SHUTDOWN
LOGIC
1.25V
FB
LX
D1
R1
R2
SW
L1
10
μ
H
LOGIC
CONTROL
V
CC
= 2.4V TO 5.5V
C1
C2
V
OUT
= V
IN
TO 28V
C
OUT
C
FF
MAX1606
CURRENT
LIMIT
ERROR
AMPLIFIER
I
LIM
Figure 1. Functional Diagram
Figure 2. Setting the Peak Inductor Current Limit
GND
LIM
GND
V
CC
V
CC
LIM
GND
V
CC
LIM
NO CONNECTION
V
(2.4V TO 5.5V)
V
(2.4V TO 5.5V)
V
(2.4V TO 5.5V)
IPEAK = 500mA
IPEAK = 250mA
IPEAK = 125mA
MAX1606
MAX1606
MAX1606
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1606EUA | 28V Internal Switch LCD Bias Supply with True Shutdown |
| MAX1607ESA | USB Current-Limited Switch in Pin-Compatible Package |
| MAX1607 | USB Current-Limited Switch in Pin-Compatible Package |
| MAX1608 | 16-Bit Bus Transceivers And Registers With 3-State Outputs 56-TSSOP -40 to 85 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX16060ATE+ | 功能描述:監(jiān)控電路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16060ATE+T | 功能描述:監(jiān)控電路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16060BTE+ | 功能描述:監(jiān)控電路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16060BTE+T | 功能描述:監(jiān)控電路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX16060CTE+ | 功能描述:監(jiān)控電路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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