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参数资料
| 型号： | LTC4416IMS#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封装： | PLASTIC, MSOP-10 |
| 文件页数： | 11/12页 |
| 文件大小： | 209K |
| 代理商： | LTC4416IMS#TR |
LTC4416/LTC4416-1
4416fa
V1 is Greater Than V2 Operation
When VE1 is below the VREF threshold, channel 1 is in
a “soft-off mode”. This means that G1 will only provide
an IG(SRC) current instead of an IG(SNK) or an IGFON(SNK)
current.
When VE1 is above the VREF threshold, channel 1 is im-
mediately fully enabled, and G1 will become active imple-
menting the output current listed in Figure 1.
Channel 2 is fully enabled. If VV1 – VVS < VRTO, channel 2
will implement all of the IG2 currents listed in Figure 1.
Channel 1 is Disabled
The LTC4416 is not designed to have channel 1 disabled
by grounding E1 and leaving E2 in an indeterminate state.
If this happens, the channel 2 PowerPath controller will
not have reverse turn-off capability. No electrical harm to
the LTC4416 will occur.
Channel 2 is Disabled
The LTC4416 is not designed to have channel 2 disabled
by connecting E2 high and leaving E1 in an indeterminate
state. If this happens, the channel 1 PowerPath controller
will not have reverse turn-off capability. No electrical harm
to the LTC4416 will occur.
Both Channels Disabled
When both channels of the LTC4416 are disabled, both
G1 and G2 currents are set to IG(SRC).
LTC4416-1 OPERATION
The LTC4416-1 is designed for overvoltage/undervoltage
protection or when either voltage path must be turned off
rapidly, regardless of the status of the other voltage input.
The LTC4416-1 does not implement the soft-off feature
implemented in the LTC4416. The E1 and E2 inactive will
force the IG current of their respective channel to IG(OFF).
Table 2 explains the operation of the E1 and E2 inputs.
The term “active” implies that IG(OFF) current is forced on
the Gn pins regardless of the VVn – VVS value. The term
“enabled” implies that IG(OFF) current is provide on the Gn
pins if and only if VVn – VVS < VRTO.
Table.2 LTC4416-1 Operational Modes
E1
E2 Operation Mode
IG(OFF)1
IG(OFF)2
0
X
Undervoltage Protection
Active
X
1
Overvoltage Protection
Active
1
X
Channel 1 PowerPath
Enabled
X
0
Channel 2 PowerPath
Enabled
LTC4416
The LTC4416 is designed to support three major ap-
plications. The first two applications assume that V1 is
the primary power source and V2 is the backup power
source. The first application is where the V1 power supply
is normally less than V2. The second application is where
the V1 power supply is normally greater than V2. The third
application addresses the load sharing case where both
V1 and V2 are relatively equal in value.
V1 is Less Than V2
Figure 2 illustrates the external resistor configuration for
this case.
Figure 2
OPERATIO
U
APPLICATIO S I FOR ATIO
W
U
LTC4416
PRIMARY SUPPLY
BACKUP SUPPLY
V2 = 14.4V
V1 = 9V (FAIL)
V1 = 10.8V (RESTORE)
Q1
SUP75P03_07
E1
H1
GND
E2
H2
V1
G1
VS
G2
V2
R2E
105k
R2C
24.9k
R2A
158k
V1
GND
V2
VS
Q2
Q3
4416 F02
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相关代理商/技术参数 |
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| LTC4417CGN#PBF | 制造商:Linear Technology 功能描述:Prioritized PowerPath Controller 24-Pin SSOP N 制造商:Linear Technology 功能描述:IC OR CTRLR SRC SELECT 24SSOP 制造商:Linear Technology 功能描述:SEQUENCER TRIPLE SUPPLY 36V 制造商:Linear Technology 功能描述:PRIORITIZED POWER PATH CONTROLLER, SSOP-24; IC Function:Prioritized PowerPath Controller; Supply Voltage Min:2.5V; Supply Voltage Max:36V; Operating Temperature Min:0C; Operating Temperature Max:70C; Digital IC Case Style:SSOP ;RoHS Compliant: Yes |
| LTC4417CGN#TRPBF | 制造商:Linear Technology 功能描述:Prioritized PowerPath Controller 24-Pin SSOP N T/R 制造商:Linear Technology 功能描述:IC OR CTRLR SRC SELECT 24SSOP |
| LTC4417CUF#PBF | 制造商:Linear Technology 功能描述:Prioritized PowerPath Controller 24-Pin QFN EP 制造商:Linear Technology 功能描述:IC OR CTRLR SRC SELECT 24QFN 制造商:Linear Technology 功能描述:SEQUENCER TRIPLE SUPPLY 36V 制造商:Linear Technology 功能描述:PRIORITIZED POWER PATH CONTROLLER, QFN-24; IC Function:Prioritized PowerPath Controller; Supply Voltage Min:2.5V; Supply Voltage Max:36V; Operating Temperature Min:0C; Operating Temperature Max:70C; Digital IC Case Style:QFN ;RoHS Compliant: Yes |
| LTC4417CUF#TRPBF | 制造商:Linear Technology 功能描述:Prioritized PowerPath Controller 24-Pin QFN EP T/R 制造商:Linear Technology 功能描述:IC OR CTRLR SRC SELECT 24QFN |
| LTC4417HGN#PBF | 制造商:Linear Technology 功能描述:Prioritized PowerPath Controller 24-Pin SSOP N 制造商:Linear Technology 功能描述:IC OR CTRLR SRC SELECT 24SSOP 制造商:Linear Technology 功能描述:MS-Hot Swap/Low Voltage, 2.5V to 36V Prioritized Triple PowerPath Controller |
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