參數(shù)資料
型號: TPS2346PWG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24
封裝: GREEN, TSSOP-24
文件頁數(shù): 25/30頁
文件大?。?/td> 490K
代理商: TPS2346PWG4
TPS2346
SLUS529 – MAY 2002
4
www.ti.com
electrical characteristics VI(VIN1) = 5.15 V, VI(VIN2) = 5 V, VI(VIN3) = 3.3 V, VI(VIN4) = –5.2 V,
TA = –40_C to 85_C (unless otherwise noted) (continued)
overcurrent comparators 1, 2, 3
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOC1
Overcurrent threshold voltage
(VIN1 – CS1)
34
45
56
VOC2
Overcurrent threshold voltage
(VIN2 – CS2)
29
40
51
mV
VOC3
Overcurrent threshold voltage
(VIN3 – CS3)
29
40
51
tR
Response time
1
5
s
overcurrent comparator 4
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOC4
Overcurrent threshold voltage
(VIN4 – CS4) relative to VMAX4
–50
–225
mV
tR
Response time
1
5
s
undervoltage (UV)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VUV1
Channel 1 undervoltage limit
4.35
4.53
4.71
VUV2
Channel 2 undervoltage limit
4.22
4.40
4.58
V
VUV3
Channel 3 undervoltage limit
2.78
2.90
3.02
V
VUV4
Channel 4 undervoltage limit
-4.76
-4.58
-4.30
overvoltage (OV)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOV1
Channel 1 overvoltage limit
5.54
5.77
6.00
VOV2
Channel 2 overvoltage limit
5.38
5.60
5.82
V
VOV3
Channel 3 overvoltage limit
3.55
3.70
3.85
V
VOV4
Channel 4 overvoltage limit
-7.00
-5.82
-5.54
IRAMP output
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ICHG
Source current, charging
VO(IRAMP) = 0.5 V
–46
–58
–68
A
IDSG
Sink current, discharging
VO(IRAMP) = 0.5 V
1.3
1.8
2.5
A
undervoltage lockout (UVLO)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VUVLO–L
VIN1 UVLO, input rising
2.1
2.4
2.9
VUVLO–H VIN1 UVLO, input falling
VI(VIN2) = VI(VIN3) = VI(VIN4) = 0 V
1.90
2.25
2.70
V
VHYS
VIN1 UVLO hysteresis
VI(VIN2) VI(VIN3)
VI(VIN4)
0 V
0.05
V
ENABLE input
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIL
Low-level input voltage
0.8
V
VIH
High-level input voltage
2
V
IIH
High-level input leakage current
VI(ENABLE) = 5 V
50
A
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