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参数资料
| 型号： | LTC2910IDHC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC VOLT MON OCTAL 16-DFN |
| 标准包装： | 2,500 |
| 类型： | 多压监控器 |
| 监视电压数目： | 8 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 6 ms |
| 电压 - 阀值： | 8 种可选阀值组合 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFDFN 裸露焊盘 |
| 供应商设备封装： | 16-DFN（5x3） |
| 包装： | 带卷 (TR) |
LTC2910
TYPICAL PERFORMANCE CHARACTERISTICS
unless otherwise noted. (Note 2)
Speci?cations are at T A = 25°C and V CC = 3.3V
RST , I SINK vs V CC
RST/ RST Voltage Output Low vs
Output Sink Current
Reset Timeout Period vs
Capacitance
5
Vn = 0.45V
SEL = V CC
1.0
85°C
10000
4
RST AT 150mV
0.8
25°C
–40°C
1000
3
2
RST AT 50mV
0.6
0.4
100
1
0.2
10
0
0
1
2 3
4
5
0
0
5
10 15 20
25
30
1
0.1
1
10 100
1000
SUPPLY VOLTAGE, V CC (V)
2910 G10
I RST/ RST (mA)
2910 G11
TMR PIN CAPACITANCE, C TMR (nF)
2910 G12
PIN FUNCTIONS
DIS (Pin 13): Output Disable Input. Disables the RST and
RST output pins. When DIS is pulled high, the RST and
RST pins are not asserted except during a UVLO condition.
Pin has a weak (2μA) internal pull-down to GND. Leave
pin open if unused.
Exposed Pad (Pin 17, DFN Package): Exposed pad may
be left open or connected to device ground.
GND (Pin 9): Device Ground
REF (Pin 10): Buffered Reference Output. 1V reference
used for the offset of negative-monitoring applications.
The buffered reference sources and sinks up to 1mA. The
reference drives capacitive loads up to 1nF. Larger capacitive
loads may cause instability. Leave pin open if unused.
RST (Pin 11): Open-Drain Reset Logic Output. Asserts
high when any positive polarity input voltage is below
threshold or any negative polarity input voltage is above
threshold. Held high for an adjustable delay time after all
voltage inputs are valid. Pin has a weak pull-up to V CC and
may be pulled above V CC using an external pull-up. Leave
pin open if unused.
RST (Pin 12): Open-Drain Inverted Reset Logic Output.
Asserts low when any positive polarity input voltage is
below threshold or any negative polarity input voltage is
above threshold. Held low for an adjustable delay time after
all voltage inputs are valid. Pin has a weak pull-up to V CC
and may be pulled above V CC using an external pull-up.
Leave pin open if unused.
SEL (Pin 14): Input Polarity Select Three-State Input.
Connect to V CC , GND or leave unconnected in open state
to select one of three possible input polarity combinations
(refer to Table 1).
TMR (Pin 15): Reset Delay Timer. Attach an external ca-
pacitor (C TMR ) of at least 10pF to GND to set a reset delay
time of 9ms/nF. A 1nF capacitor will generate an 8.5ms
reset delay time. Tie pin to V CC to bypass timer.
V1-V6 (Pin 1, 2, 3, 4, 5 & 6): Voltage Inputs 1 through 6.
When the voltage on this pin is below 0.5V, a reset condi-
tion is triggered. Tie pin to V CC if unused.
V7-V8 (Pin 7 & 8): Voltage Inputs 7 and 8. The polarity
of the input is selected by the state of the SEL pin (refer
2910fc
6
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