参数资料
型号: TPS2346PW
厂商: Texas Instruments
文件页数: 5/30页
文件大小: 490K
描述: IC HOT SWAP POWER MGR 24-TSSOP
标准包装: 60
类型: 热交换控制器
应用: 光纤学网络(ONET)
内部开关:
电源电压: -5.2V,3.3V,5V,5.15V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 管件
其它名称: 296-12956-5
TPS2346
 
SLUS529  MAY 2002
5
www.ti.com
electrical characteristics V
I(VIN1)
  =  5.15  V,  V
I(VIN2)
  =  5  V,  V
I(VIN3)
  =  3.3  V,  V
I(VIN4)
  =  5.2  V,
T
A
 = 40_C to 85_C (unless otherwise noted) (continued)
PG
 output
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I
OH
Highlevel output (leakage) current
V
I(ENABLE
)
 = 5 V,
V
OH
 = 5 V
1
V
OL
Low-level output voltage
V
I(ENABLE
)
 = 0 V,
I
SINK
 = 0.1 mA
0.5
V
I
OL
Low-level output (sink) current
V
I(ENABLE
)
 = 0 V,
V
OL
 = 0.5 V
4
10
mA
Terminal Functions
TERMINAL
NAME
NO.
I/O
DESCRIPTION
AGND
18
I
Analog ground
ENABLE
6
I
Logic low enable input for back-end power
CPGND
19
I
Charge pump ground
CPUMP
20
I/O
Charge pump resevoir capacitor connection
CS1
4
I
Channel 1 (5.15-V) current sense input
CS2
21
I
Channel 2 (5-V) current sense input
CS3
9
I
Channel 3 (3.3-V) current sense input
CS4
16
I
Channel 4 (5.2-V) current sense input
GATE1
1
O
Gate drive for Channel 1 (5.15-V) external pass FET
GATE2
24
O
Gate drive for Channel 2 (5-V) external pass FET
GATE3
12
O
Gate drive for Channel 3 (3.3-V) external pass FET
GATE4
13
O
Gate drive for Channel 4 (5.2-V) external pass FET
PG
17
O
Open drain output asserted low for back-end power good
IRAMP
5
O
Current ramp programming pin
PRECHG
8
O
Bias supply of 1V for bus signal precharge
RGND
7
I
Reference ground
VIN1
3
I
Channel 1 supply (5.15-V) input voltage sense
VIN2
22
I
Channel 2 supply (5-V) input voltage sense
VIN3
10
I
Channel 3 supply (3.3-V) input voltage sense
VIN4
15
I
Channel 4 supply (5.2-V) input voltage sense
VS1
2
I
5.15-V supply back-end voltage sense
VS2
23
I
5-V supply back-end voltage sense
VS3
11
I
3.3-V supply back-end voltage sense
VS4
14
I
5.2-V supply back-end voltage sense
DISSIPATION RATING TABLE
PACKAGE
T
A
   25_C
DERATING FACTOR
T
A
 
=
 85_C
TSSOP (PW)
800 mW
10 mW/_C
200 mW
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