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参数资料
| 型号： | MAX5981AETE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 4/16页 |
| 文件大小： | 1328K |
| 描述： | IC CTRLR PD IEEE 802.3AF 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 以太网供电控制器 PD 开关（PoE） |
| 应用： | 供电设备（PSE） |
| 内部开关： | 是 |
| 电流限制： | 720mA 至 880mA |
| 电源电压： | 31 V ~ 60 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
IEEE 802.3af/at-Compliant, Powered Device Interface
Controllers with Integrated Power MOSFET
4 ______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= (V
DD
- V
SS
) = 48V, R
DET
= 24.9k? R
CLS
= 615? and R
SL
= 60.4k? RTN, WAD, PG, 2EC, WK, and ULP unconnected, all
voltages are referenced to V
SS,
unless otherwise noted. T
A
= T
J
= -40NC to +85NC, unless otherwise noted. Typical values are at
T
A
= +25NC.) (Note 3)
Note 3: All devices are 100% production tested at T
A
= +25NC. Limits over temperature are guaranteed by design.
Note 4: The input offset current is illustrated in Figure 1.
Note 5: Effective differential input resistance is defined as the differential resistance between V
DD
and V
SS
. See Figure 1.
Note 6: Classification current is turned off whenever the device is in power mode.
Note 7: UVLO hysteresis is guaranteed by design, not production tested.
Note 8: A 20V glitch on input voltage, which takes V
DD
below V
ON
shorter than or equal to t
OFF_DLY
does not cause the
MAX5981A/MAX5981B to exit power-on mode.
Note 9: In power mode, current-limit foldback is used to reduce the power dissipation in the isolation MOSFET during an overload
condition across V
DD
and RTN.
Figure 1. Effective Differential Input Resistance/Offset Current
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LED Current Programmable
Range
10
20
mA
LED Current with Grounded SL
V
SL
= 0V
20.5
24.5
28.5
mA
LED Current Frequency
f
ILED
Normal and ULP sleep
mode
MAX5981A
250
Hz
MAX5981B
15.625
kHz
LED Current Duty Cycle
D
ILED
Normal and ULP sleep mode
25
%
V
DD
Current Amplitude
I
VDD
Normal sleep mode, V
LED
= 3.5V
10
11
12
mA
Internal Current Duty Cycle
D
IVDD
Normal and ULP sleep modes
75
%
Internal Current Enable Time
t
MPS
ULP sleep mode
76
84
92
ms
Internal Current Disable Time
t
MPDO
ULP sleep mode
205
228
250
ms
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
T
SD
T
J
rising
+140
NC
Thermal-Shutdown Hysteresis
T
J
falling
28
NC
I
IN
I
INi + 1
I
INi
I
OFFSET
dR
i
1V
V
INi
V
INi + 1
I
OFFSET
= I
INi
-
V
INi
dR
i
dR
i
=
(V
INi + 1
- V
INi
)
=
1V
(I
INi + 1
- I
INi
)
(I
INi + 1
- I
INi
)
V
IN
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5981AEVKIT# | 制造商:Maxim Integrated Products 功能描述:EVKIT FOR POWERED DEVICE INTERFACE CONTROLLERS WITH INTEGRAT - Boxed Product (Development Kits) 制造商:Maxim Integrated Products 功能描述:KIT EVAL INTERFACE CONTROLLER |
| MAX5981BETE+ | 功能描述:热插拔功率分布 IEEE 802.3af/at PDIC Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5981BETE+T | 功能描述:热插拔功率分布 IEEE 802.3af/at PDIC Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5982AETE+ | 功能描述:热插拔功率分布 PDIC, up to 70W RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5982AETE+T | 功能描述:热插拔功率分布 PDIC, up to 70W RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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