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參數資料
| 型號： | NCV8508 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 5.0 V, 250 mA LDO with Watchdog and RESET |
| 中文描述： | 5.0V的，250 mA的LDO，帶有看門狗和RESET |
| 文件頁數： | 3/12頁 |
| 文件大小： | 89K |
| 代理商： | NCV8508 |
NCV8508
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(40
°
C
≤
T
J
≤
125
°
C; 6.0
V
≤
V
IN
≤
28 V, 100 A
≤
I
OUT
≤
150 mA, C
2
= 1.0 F, R
Delay
= 60 k;
unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
OUTPUT
Output Voltage
4.85
5.00
5.15
V
Dropout Voltage (V
IN
V
OUT
)
I
OUT
= 150 mA. Note 4
450
900
mV
Load Regulation
V
IN
= 14 V, 100 A
≤
I
OUT
≤
150 mA
5.0
30
mV
Line Regulation
6.0 V
≤
V
IN
≤
28 V, I
OUT
= 5.0 mA
5.0
50
mV
Current Limit
250
400
mA
Thermal Shutdown
Guaranteed by Design
150
180
210
°
C
Quiescent Current
V
IN
= 12 V, I
OUT
= 150 mA, (see Figure 6)
100
150
A
RESET
Threshold
4.50
4.65
4.80
V
Output Low
R
LOAD
= 10 k to V
OUT
, V
OUT
≥
1.0 V
R
LOAD
= 5.1 k to V
OUT
, V
OUT
≥
1.0 V
0.2
0.4
0.4
0.8
V
Output High
R
LOAD
= 10 k to GND
R
LOAD
= 5.1 k to GND
V
OUT
0.5
V
OUT
1.0
V
OUT
0.25
V
OUT
0.5
V
Delay Time
V
IN
= 14 V, R
Delay
= 60 k, I
OUT
= 5.0 mA
V
IN
= 14 V, R
Delay
= 120 k, I
OUT
= 5.0 mA
2.0
3.0
6.0
4.0
ms
ms
WATCHDOG INPUT
Threshold High
70
%V
OUT
Threshold Low
30
%V
OUT
Hysteresis
100
mV
Input Current
WDI = 6.0 V
0.1
+10
A
Pulse Width
50% WDI falling edge to
50% WDI rising edge and
50% WDI rising edge to
50% WDI falling edge, (see Figure 5)
5.0
s
WAKEUP OUTPUT
(V
IN
= 14 V, I
OUT
= 5.0 mA)
Wakeup Period
See Figures 4 and 5, R
DELAY
= 60 k
See Figures 4 and 5, R
DELAY
= 120 k
18
25
50
32
ms
ms
Wakeup Duty Cycle Nominal
See Figure 3
45
50
55
%
RESET HIGH to
Wakeup Rising Delay Time
R
DELAY
= 60 k
50% RESET rising edge to
50% Wakeup edge, R
DELAY
= 120 k
(see Figures 3 and 4)
9.0
12.5
25
16
ms
ms
Wakeup Response to
Watchdog Input
50% WDI falling edge to
50% Wakeup falling edge
0.1
5.0
s
Wakeup Response to RESET
50% RESET falling edge to
50% Wakeup falling edge.
V
OUT
= 5.0 V
→
4.5 V
0.1
5.0
s
Output Low
R
LOAD
= 10 k to V
OUT
, V
OUT
≥
1.0 V
R
LOAD
= 5.1 k to V
OUT
, V
OUT
≥
1.0 V
0.2
0.4
0.4
0.8
V
Output High
R
LOAD
= 10 k to GND
R
LOAD
= 5.1 k to GND
V
OUT
0.5
V
OUT
1.0
V
OUT
0.25
V
OUT
0.5
V
DELAY
Output Voltage
I
DELAY
= 50 A. Note 5
1.25
V
4. Measured when the output voltage has dropped 100 mV from the nominal value. (see Figure 12)
5. Current drain on the Delay pin directly affects the Delay Time, Wakeup Period, and the RESET to Wakeup Delay Time.
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相關代理商/技術參數 |
參數描述 |
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| NCV85081BDS50G | 功能描述:低壓差穩(wěn)壓器 - LDO 250 MA, 5 V, LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| NCV85081BDS50R4G | 功能描述:低壓差穩(wěn)壓器 - LDO 250 MA 5 V LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| NCV85081BDS50R4G/H | 制造商:ON Semiconductor 功能描述: |
| NCV85081BPD50R2G | 功能描述:低壓差穩(wěn)壓器 - LDO 250 MA 5 V LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| NCV85081BPD50R2G/H | 制造商:ON Semiconductor 功能描述: |
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