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參數(shù)資料
| 型號： | UCC3916 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | SCSI Termpower Manager(小型計算機系統(tǒng)電源管理) |
| 中文描述： | 的SCSI Termpower經(jīng)理（小型計算機系統(tǒng)電源管理） |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 43K |
| 代理商： | UCC3916 |
UCC3916
SLUS206A - JANUARY 2000
FEATURES
Integrated Circuit Breaker Function
Integrated 0.2
Power FET
SCSI, SCSI-2, SCSI-3 Compliant
1
μ
A ICC When Disabled
Programmable On Time
Accurate 1.65A Trip Current and
2.0A Max Current
Fixed 3% Duty Cycle
Uni-Directional Switch
Thermal Shutdown
DESCRIPTION
The UCC3916 SCSI termpower manager provides complete power man-
agement, hot swap capability, and circuit breaker functions with minimal ex-
ternal components. For most applications, the only external component
required to operate the device, other than supply bypassing, is a timing ca-
pacitor which sets the fault time.
The current trip level is internally set at 1.65A, and the maximum current
level is also internally programmed for 2A. While the output current is below
the trip level of 1.65A, the internal power MOSFET is switched on at a nom-
inal 220m
. When the output current exceeds the trip level but remains
less than the maximum current level, the MOSFET remains switched on,
but the fault timer starts charging CT. Once the fault time is reached, the cir-
cuit will shut off for a time which equates to a 3% duty cycle. Finally, when
the output current reaches the maximum current level, the MOSFET transi-
tions from a switch to a constant current source.
The UCC3916 is designed for uni-directional current flow, emulating a diode
in series with the power MOSFET.
The UCC3916 can be put in a sleep mode, drawing only 1
μ
A of supply cur-
rent.
Other features include thermal shutdown and low thermal resistance Small
Outline Power package.
SCSI Termpower Manager
8
OUTPUT
+
OUTPUT
CURRENT SENSE
H=OPEN
REVERSE VOLTAGE
COMPARATOR
50mV
CHARGE
PUMP
POWER
FET
ON TIME CONTROL
3% DUTY CYCLE
LINEAR
CURRENT
AMPLIFIER
THERMAL
SHUTDOWN
INTERNAL
BIAS
+
–
1.5V
5
SHTDWN
4
CT
OVER CURRENT
COMPARATOR
2
3
6
7
GND
GND
GND
GND
MAXIMUM
CURRENT
LEVEL
2A
4 HEATSINK PINS
CURRENT
TRIP LEVEL
1.65A
1
VIN
4V TO 6V
BLOCK DIAGRAM
UDG-99172
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| UCC39161DP | 功能描述:熱插拔功率分布 0.6A 4-6V Lo Crnt Sngl Hi-Side MOSFET RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| UCC39161DPG4 | 功能描述:熱插拔功率分布 0.6A 4-6V Lo Crnt Sngl Hi-Side MOSFET RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| UCC3916DP | 功能描述:熱插拔功率分布 1.65A 4-6V Sngl Hi-Side MOSFET RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| UCC3916DPG4 | 功能描述:熱插拔功率分布 1.65A 4-6V Sngl Hi-Side MOSFET RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| UCC3916DPTR | 功能描述:熱插拔功率分布 1.65A 4-6V Sngl Hi-Side MOSFET RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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