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參數(shù)資料
| 型號(hào)： | LTC4416EMS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 36V, Low Loss Dual PowerPath Controllers for Large PFETs |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | PLASTIC, MSOP-10 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 201K |
| 代理商： | LTC4416EMS |
LTC4416/LTC4416-1
4416fa
V1 is Greater Than V2 Operation
When V
E1
is below the V
REF
threshold, channel 1 is in
a “soft-off mode”. This means that G1 will only provide
an I
G(SRC)
current instead of an I
G(SNK)
or an I
GFON(SNK)
current.
When V
E1
is above the V
REF
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 V
V1
– V
VS
< V
RTO
, channel 2
will implement all of the I
G2
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 I
G(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 I
G
current of their respective channel to I
G(OFF)
.
Table 2 explains the operation of the E1 and E2 inputs.
The term “active” implies that I
G(OFF)
current is forced on
the Gn pins regardless of the V
Vn
– V
VS
value. The term
“enabled” implies that I
G(OFF)
current is provide on the Gn
pins if and only if V
Vn
– V
VS
< V
RTO
.
Table.2 LTC4416-1 Operational Modes
E1
E2
Operation Mode
0
X
Undervoltage Protection
X
1
Overvoltage Protection
1
X
Channel 1 PowerPath
X
0
Channel 2 PowerPath
I
G(OFF)1
Active
I
G(OFF)2
Active
Enabled
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
OPERATIOU
APPLICATIU
W
U
U
LTC4416
PRIMARY SUPPLY
BACKUP SUPPLY
V2 = 14.4V
V1 = 9V (FAIL)
V1 = 10.8V (RESTORE)
Q1
SUP75P03_07
SUP75P03_07
E1
H1
GND
E2
H2
V1
G1
V
S
G2
V2
R2E
105k
R2C
24.9k
R2A
158k
V1
GND
V2
V
S
Q2
Q3
4416 F02
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| LTC4416EMS#PBF | 功能描述:IC CTLR POWERPATH 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份，工業(yè)/汽車(chē)，大電流開(kāi)關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開(kāi)關(guān):是 延遲時(shí)間 - 開(kāi)啟:100ns 延遲時(shí)間 - 關(guān)閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4416EMS#TRPBF | 功能描述:IC CNTRLR POWERPATH 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份，工業(yè)/汽車(chē)，大電流開(kāi)關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開(kāi)關(guān):是 延遲時(shí)間 - 開(kāi)啟:100ns 延遲時(shí)間 - 關(guān)閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4416EMS-1 | 制造商:Linear Technology 功能描述:OR Controller P-Channel Dual-OUT 10-Pin MSOP |
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