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參數(shù)資料
| 型號： | LTC2905IDDB8#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | 3 X 2 MM, M0-229WECD-1, PLASTIC, DFN-8 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 179K |
| 代理商： | LTC2905IDDB8#PBF |
LTC2904/LTC2905
3
29045f
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. V1 = 2.5V, V2 = 1V, S1 = TOL = V1, S2 = 0V, unless otherwise noted.
(Notes 2, 3)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The greater of V1, V2 is the internal supply voltage (VCC).
Note 3: All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 4: For reset thresholds test conditions refer to the voltage threshold
programming table in the Applications Information section.
Note 5: The output pins RST and RST have an internal pull-up to VCC of
typically –6
A. However, an external pull-up resistor may be used when
faster rise time is required or for VOH voltages greater than VCC.
Note 6: The input current to the three-state input pins are the pull-up and
the pull-down current when the pins are either set to V1 or GND
respectively. In the open state, the maximum leakage current to V1 or GND
permissible is 10
A.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCCMIN
Minimum Internal Operating Voltage (Note 2) RST in Correct Logic State
q
1V
IV1
V1 Input Current
Includes Input Current to Three-State Pins
q
65
130
A
IV2
V2 Input Current
q
0.4
1.0
A
ITMR(UP)
TMR Pull-Up Current
(LTC2905)
VTMR = 0V
q
–1.5
–2.1
–2.7
A
ITMR(DOWN)
TMR Pull-Down Current
(LTC2905)
VTMR = 1.4V
q
1.5
2.1
2.7
A
tRST
Reset Time-Out Period
(LTC2904)
q
140
200
260
ms
tRST
Reset Time-Out Period
(LTC2905)
CTMR = 22nF
q
140
200
260
ms
tUV
Vx Undervoltage Detect to
Vx Less than Reset Threshold VRTX
150
s
RST or RST
by More than 1%
VOL
Output Voltage Low RST, RST
I = 2.5mA
q
0.15
0.4
V
I = 100
A; V1 = 1V (RST Only)
q
0.05
0.3
V
VOH
Output Voltage High RST, RST
I = –1
A
q
VCC–1
V
(Notes 2, 5)
Three-State Inputs S1, S2, TOL
VIL
Low Level Input Voltage
q
0.4
V
VIH
High Level Input Voltage
q
1.4
V
VZ
Pin Voltage when Left in Open State
I = –10
A
q
0.7
V
I = 0
A
0.9
V
I = 10
A
q
1.1
V
IVPG
Programming Input Current (Note 6)
q
±25
A
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| LTC2905ITS8#TR | 功能描述:IC MON DUAL SUPPLY PREC TSOT23-8 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:400 系列:- 類型:備用電池電路 監(jiān)視電壓數(shù)目:1 輸出:開路漏極，推挽式 復(fù)位:高有效/低有效 復(fù)位超時:最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR |
| LTC2905ITS8#TRM | 功能描述:IC MON DUAL SUPPLY PREC TSOT23-8 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:400 系列:- 類型:備用電池電路 監(jiān)視電壓數(shù)目:1 輸出:開路漏極，推挽式 復(fù)位:高有效/低有效 復(fù)位超時:最小為 35 ms 電壓 - 閥值:4.65V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:帶卷 (TR) 其它名稱:ADM691ARZ-REEL7TR |
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