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參數(shù)資料
| 型號(hào)： | MAX14523CATA+T |
| 廠商： | Maxim Integrated |
| 文件頁(yè)數(shù)： | 2/11頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC CURRENT LIMIT SWITCH 8-DFN |
| 產(chǎn)品培訓(xùn)模塊： | ISP Current Limit Switches Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 功能： | 電流開(kāi)關(guān) |
| 精確度： | ±10% |
| 輸入電壓： | 1.7 V ~ 5.5 V |
| 電流 - 輸出： | 可調(diào) |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 8-TDFN-EP（3x3） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | MAX14523CATA+TDKR |
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
10
______________________________________________________________________________________
Do not use an RSETI value smaller than 91.78k
Ω.
Note: Connecting any capacitance larger than 20pF to
SETI can cause instability.
IN Bypass Capacitor
Connect a minimum of 1F capacitor from IN to GND to
limit the input voltage drop during momentary output
short-circuit conditions. Larger capacitor values further
reduce the voltage undershoot at the input.
OUT Bypass Capacitor
For stable operation over the full temperature range
and over the full-programmable current-limit range, use
a 1F ceramic capacitor from OUT to ground.
Excessive output capacitance can cause a false over-
current condition due to decreased dv/dt across the
capacitor. Calculate the maximum capacitive load
(CMAX) value that can be connected to OUT using the
following formula:
For example, for VIN = 3.3V, tBLANK = 10ms, and ILIM =
300mA, CMAX equals 909F.
Layout and Thermal Dissipation
To optimize the switch response time to output short-
circuit conditions, it is very important to keep all traces
as short as possible to reduce the effect of undesirable
parasitic inductance. Place input and output capacitors
as close as possible to the device (no more than 5mm).
IN and OUT must be connected with wide short traces
to the power bus. During normal operation, the power
dissipation is small and the package temperature
change is minimal. If the output is continuously shorted
to ground at the maximum supply voltage, the opera-
tion of the switches with the autoretry option does not
cause problems because the total power dissipated
during the short is scaled by the duty cycle:
Attention must be given to the MAX14523C continuous
current-limit version when the power dissipation during
a fault condition can cause the device to reach the ther-
mal shutdown threshold.
Chip Information
PROCESS: BiCMOS
P
VI
t
tt
MAX
IN MAX
OUT MAX
BLANK
RETRY
BLA
()
=
××
+
N
NK
CF
ImA
t
ms
VV
MAX
LIM
BLANK MIN
IN
()
(
)
()
=
×
RSETI (k )
TYPICAL CURRENT LIMIT/THRESHOLD (mA)
91.78
1500
121
1145
221
632
301
466
422
333
563.12
250
(Open)
0
Table 2. Current Limit/Threshold vs.
Resistor Values
Pin Configuration
MAX14523A
MAX14523AL
MAX14523B
MAX14523C
1
+
TDFN
3mm x 3mm
N.C.
2
FLAG
3
SETI
4
OUT
8
GND
7
ON(ON)**
6
N.C.
5IN
*CONNECT EXPOSED PAD TO GND.
**( ) FOR THE MAX14523AL ONLY.
*EP
Package Information
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 TDFN-EP
T833+2
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| MAX14523EVKIT+ | 功能描述:電源開(kāi)關(guān) IC - 配電 EVKits RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻（最大值）:85 mOhms 開(kāi)啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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| MAX14526BEEWP+T | 功能描述:電池管理 UMIC w/Charger Detection RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX14526DEEWP+T | 功能描述:USB 接口集成電路 USB Cable Connection Identifier Ic RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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