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参数资料
| 型号： | EVAL-ADM2914EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADM2914 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电源监控器/跟踪器/序列发生器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADM2914 |
| 主要属性： | 电压检测器和监控器 |
| 次要属性： | 开漏极输出 |
| 已供物品： | 板 |
Data Sheet
ADM2914
SPECIFICATIONS
T A = ?40°C to +85°C. Typical values at T A = 25°C, unless otherwise noted. V CC = 3.3 V, VLx = 0.45 V, VHx = 0.55 V, LATCH = V CC ,
SEL = V CC , DIS = open, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
SHUNT REGULATOR
V CC Shunt Regulator Voltage, V SHUNT
6.2
6.6
6.9
V
I CC = 5 mA
V CC Shunt Regulator Load Regulation, ΔV SHUNT
6.2
6.6
200
7.0
300
V
mV
T A = ?40°C to +125°C
I CC = 2 mA to 10 mA
SUPPLY
Supply Voltage, V CC 1
2.3
V SHUNT
V
Minimum V CC Output Valid, V CCR(MIN)
1
V
DIS = 0 V
Supply Undervoltage Lockout, V CC(UVLO)
Supply Undervoltage Lockout Hysteresis, ΔV CC(HYST)
Supply Current, I CC
1.9
5
2
25
62
2.1
50
100
V
mV
μA
DIS = 0 V, V CC rising
DIS = 0 V
V CC = 2.3 V to 6 V
REFERENCE OUTPUT
Reference Output Voltage, V REF
0.985
0.985
1
1
1.015
1.020
V
V
I VREF = ±1 mA
T A = ?40°C to +125°C
UNDERVOLTAGE/OVERVOLTAGE CHARACTERISTICS
Undervoltage/Overvoltage Threshold, V UOT
492.5
500
507.5
mV
Undervoltage/Overvoltage Threshold to Output Delay, t UOD
50
125
500
μs
VHx = V UOT ? 5 mV or VLx = V UOT + 5 mV
VHx, VLx Input Current, I VHL
±15
nA
±30
nA
T A = ?40°C to +125°C
UV/OV Timeout Period, t UOTO
6
6
8.5
8.5
12.5
14
ms
ms
C TIMER = 1 nF
T A = ?40°C to +125°C
OV LATCH CLEAR INPUT (ADM2914-1)
OV Latch Clear Threshold Input High, V LATCH(IH)
OV Latch Clear Threshold Input Low, V LATCH(IL)
1.2
0.8
V
V
LATCH Input Current, I LATCH
±1
μA
V LATCH > 0.5 V
DISABLE INPUT (ADM2914-2)
DIS Input High, V DIS(IH)
DIS Input Low, V DIS(IL)
1.2
0.8
V
V
DIS Input Current, I DIS
1
2
3
μA
V DIS > 0.5 V
TIMER CHARACTERISTICS
TIMER Pull-Up Current, I TIMER(UP)
TIMER Pull-Down Current, I TIMER(DOWN)
TIMER Disable Voltage, V TIMER(DIS)
?1.3
?1.2
1.3
1.2
?180
?2.1
?2.1
2.1
2.1
?270
?2.8
?2.8
2.8
2.8
μA
μA
μA
μA
mV
V TIMER = 0 V
T A = ?40°C to +125°C
V TIMER = 1.6 V
T A = ?40°C to +125°C
Referenced to V CC
OUTPUT VOLTAGE
Output Voltage High, UV/OV, V OH
1
V
V CC = 2.3 V; I UV/OV = ?1 μA
Output Voltage Low, UV/OV, V OL
0.1
0.01
0.3
0.15
V
V
V CC = 2.3 V; I UV/OV = 2.5 mA
V CC = 1 V; I UV = 100 μA
THREE-STATE INPUT SEL
Low Level Input Voltage, V IL
High Level Input Voltage, V IH
1.4
0.4
V
V
Pin Voltage When Left in High-Z State, V Z
0.7
0.6
0.9
0.9
1.1
1.2
V
V
I SEL = ±10 μA
T A = ?40°C to +125°C
SEL High, Low Input Current, I SEL
±25
μA
Maximum SEL Input Current, I SEL(MAX)
±30
μA
SEL tied to V CC or GND
1
The maximum voltage on the V CC pin is limited by the input current. The V CC pin has an internal 6.5 V shunt regulator and, therefore, a low impedance supply greater
than 6 V may exceed the maximum allowed input current. When operating from a higher supply than 6 V, always use a dropper resistor.
Rev. C | Page 3 of 16
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