参数资料
| 型号： | MAX5943BEEE+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 4/20页 |
| 文件大小： | 0K |
| 描述： | IC FIREWIRE CURR LIMITER 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 应用： | FireWire? 应用程序 |
| FET 型： | N 沟道 |
| 输出数： | 2 |
| 内部开关： | 无 |
| 延迟时间 - 关闭： | 100ns |
| 电源电压： | 7.5 V ~ 37 V |
| 电流 - 电源： | 1.3mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 管件 |
FireWire Current Limiter and Low-Drop
ORing Switch Controller
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 7.5V to 37V, GND = 0V, and T A = -40°C to +85°C, unless otherwise noted. Typical values are at V IN = 12V, T A = +25°C.)
(Note 1)
PARAMETER
Circuit-Breaker Timeout
(MAX5943B–MAX5943E) (Note 7)
SYMBOL
t CB
CONDITIONS
TIM = IN or
TIM ≥ 3.4V
Circuit-breaker mode,
R TIM = 4k Ω
MAX5943B
R TIM = 50k Ω
TIM = floating
TIM = IN or
TIM ≥ 3.4V
Circuit-breaker mode,
R TIM = 4k Ω
MAX5943C
R TIM = 50k Ω
TIM = floating
TIM = IN
R TIM = 4k Ω
Circuit-breaker mode,
R TIM = 50k Ω
MAX5943D
TIM = floating
TIM = IN or
TIM ≥ 3.4V
Circuit-breaker mode,
R TIM = 4k Ω
MAX5943E
R TIM = 50k Ω
TIM = floating
MIN
0.45
27
228
3.75
0.89
54
575
7.5
1.78
109
1.15
15
3.56
217
2.3
30
TYP
0.51
32.5
345
5.5
1.00
65
690
10.9
2.02
130
1.38
21.9
4.05
260
2.76
44
MAX
0.57
38
403
7
1.13
76
806
14
2.26
151
1.61
28
4.52
303
3.23
56
UNITS
ms
μs
μs
ms
ms
μs
μs
ms
ms
μs
ms
ms
ms
μs
ms
ms
Automatic Restart Delay After
128 x
Current-Limit/Circuit-Breaker
t OFF
LATCH = GND (Note 8)
(t ILIM
ms
Timeout
OR t CB)
GATE1 Turn-Off Time
(ORing Response Time)
t OR
From V OR trigger until (V GATE1 - V IN ) < 1V,
C GATE1 = 10nF
100
ns
Time from V ON < (V ON_OFF - Hysteresis)
Turn-Off Response Time
t ON_OFF
until (V GATE2 - V OUT ) < 1V, GATE2 = open
0.34
0.6
μs
(Note 9)
Minimum Delay from ON Low to
Low-Current Shutdown Mode
t SD
ON step from 1.3V to 0.4V
50
μs
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
All min/max parameters are tested at +25°C and +85°C. Limits at -40°C are guaranteed by design.
Measured at both V GATE2 = V OUT = 0V and V GATE2 = V OUT = V IN .
The typical value of parameter V THF is 1.5 x V TH .
Current-Limit/Circuit-Breaker Timeout; IN or ON low.
See the Typical Operating Circuit. Measured at V GATE1 = V SENSE .
The tristate (“floating”) logic condition will be entered if the pin current is within these limits.
R TIM is connected from TIM to GND. The maximum timeout period is enforced to prevent arbitrarily long operation in cur-
rent-limit mode. Therefore, the relationship between resistor value and timeout changes for large values of R TIM . See
Current-Limit Timeout vs. R TIM in the Typical Operating Characteristics for nominal values.
Note 8: Parameter t OFF is a direct multiple of t ILIM (or t CB ), so the limits for t OFF track the limits for t ILIM (or t CB ).
Note 9: If the ON voltage goes below V ON_REF - Hysteresis, then GATE2 goes low immediately to disconnect power from the load
quickly (within t ON_OFF ).
4
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5943BEEE+ | 功能描述:热插拔功率分布 FireWire Current Limiter 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 |
| MAX5943BEEE+T | 功能描述:热插拔功率分布 FireWire Current Limiter 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 |
| MAX5943BEEE-T | 功能描述:热插拔功率分布 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 |
| MAX5943CEEE | 功能描述:热插拔功率分布 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 |
| MAX5943CEEE+ | 功能描述:热插拔功率分布 FireWire Current Limiter 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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