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參數(shù)資料
| 型號： | MAX786CAI |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 305K |
| 描述： | IC REG QD BCK/LINEAR SYNC 28SSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 46 |
| 拓?fù)洌?/td> | 降壓（降壓）同步（2），線性（LDO）（2） |
| 功能： | 任何功能 |
| 輸出數(shù)： | 4 |
| 頻率 - 開關(guān)： | 300kHz，200kHz |
| 電壓/電流 - 輸出 1： | 控制器 |
| 電壓/電流 - 輸出 2： | 控制器 |
| 電壓/電流 - 輸出 3： | 5V，5mA |
| 帶 LED 驅(qū)動器： | 無 |
| 帶監(jiān)控器： | 無 |
| 帶序列發(fā)生器： | 無 |
| 電源電壓： | 5.5 V ~ 30 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 管件 |
| 其它名稱： | 146982F |
Dual-Output Power-Supply
Controller for Notebook Computers
_______________________________________________________________________________________ 7
PIN NAME
FUNCTION
1
CS3 Current-sense input for +3.3V; +100mV = current limit level referenced to FB3.
2
SS3 Soft-start input for +3.3V. Ramp time to full current limit is 1ms/nF of capacitance to GND.
3
ON3 ON/OFF
control input disables the +3.3V PWM. Tie directly to VL for automatic start-up.
4
D1 #1 level-translator/comparator noninverting input, threshold = +1.650V. Controls Q1. Tie to GND if unused.
5
D2 #2 level-translator/comparator noninverting input (see D1)
6
VH External positive supply-voltage input for the level translators/comparators
7
Q2
#2 level-translator/comparator output. Sources 20礎(chǔ) from VH when D2 is high. Sinks 500礎(chǔ) to GND
when D2 is low, even with VH = 0V.
8
Q1 #1 level translator/comparator output (see Q2)
9
GND Low-current analog ground
10
REF 3.3V reference output. Sources up to 5mA for external loads. Bypass to GND with 1礔/mA of load or
0.22礔 minimum.
11 SYNC
Oscillator control/synchronization input. Connect to VL or GND for 200kHz; connect to REF for
300kHz. For external clock synchronization in the 240kHz to 350kHz range, a high-to-low transition
causes a new cycle to start.
12 SHDN
Shutdown control input, active low. Tie to VL for automatic start-up. The 5V VL supply stays active in
shutdown, but all other circuitry is disabled. Do not force SHDN
higher than VL + 0.3V.
13
ON5 ON/OFF
control input disables the +5V PWM supply. Tie to VL for automatic start-up.
14
SS5 Soft-start control input for +5V. Ramp time to full current limit is 1ms/nF of capacitance to GND.
15
CS5 Current-sense input for +5V; +100mV = current-limit level referenced to FB5.
16
DH5 Gate-drive output for the +5V high-side MOSFET
17
LX5 Inductor connection for the +5V supply
18
BST5 Boost capacitor connection for the +5V supply (0.1礔)
19
DL5 Gate-drive output for the +5V low-side MOSFET
20 PGND Power ground
21
FB5 Feedback and current-sense input for the +5V PWM
22
VL 5V logic supply voltage for internal circuitry. VL is always on and can source 5mA for external loads.
23
V+ Supply voltage input from battery, 5.5V to 30V
24
DL3 Gate-drive output for the +3.3V low-side MOSFET
25
BST3 Boost capacitor connection for the +3.3V supply (0.1礔)
26
LX3 Inductor connection for the +3.3V supply
27
DH3 Gate-drive output for the +3.3V high-side MOSFET
28
FB3 Feedback and current-sense input for the +5V PWM
_______________________________________________________________________Pin Description
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX786CAI+ | 功能描述:DC/DC 開關(guān)控制器 Dual-Output Power Supply Controller 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 |
| MAX786CAI+T | 功能描述:DC/DC 開關(guān)控制器 Dual-Output Power Supply Controller 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 |
| MAX786CAI-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 |
| MAX786EAI | 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 |
| MAX786EAI+ | 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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