參數(shù)資料
型號： MAX6879
廠商： Maxim Integrated Products, Inc.
英文描述： Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors
中文描述： 雙/三電壓、電源跟蹤器/排序器/監(jiān)控器
文件頁數(shù)： 3/24頁
文件大小： 307K
代理商： MAX6879
M
Dual-/Triple-Voltage, Power-Supply
Trackers/Sequencers/Supervisors
_______________________________________________________________________________________
3
Note 1:
Specifications guaranteed for the stated global conditions. 100% production tested at T
A
= +25°C and T
A
= +85°C.
Specifications at T
A
= -40°C to +85°C are guaranteed by design. These devices meet the parameters specified when at
least one of V
CC
, IN1/IN2/IN3 is between 2.7V to 5.5V, while the remaining IN1/IN2/IN3 are between 0 and 5.5V.
Note 2:
A current I
D
= 2.5μA ±15% is generated internally and is used to set the DELAY and TIMEOUT periods and used as a refer-
ence for t
DELAY
and t
TIMEOUT
.
Note 3:
The total DELAY is t
DELAY
= 200ms + (500k
x C
DELAY
). Leave DELAY unconnected for 200μs delay. The total TIMEOUT is
t
TIMEOUT
= 200μs + (500k
x C
TIMEOUT
). Leave TIMEOUT unconnected for 200μs timeout.
Note 4:
A current I
S
= 25μA ±10% is generated internally and used as a reference for t
FAULT
, t
RETRY
, and slew rate.
Note 5:
During power-up, only the condition OUT_ < ramp - V
TRK
is checked in order to stop the ramp. However, both conditions
OUT_ < ramp - V
TRK_F
and OUT_ > ramp + V
TRK_F
cause a fault. During power-down, only the condition OUT > ramp +
V
TRK
is checked in order to stop the ramp. However, both conditions OUT_ < ramp - V
TRK_F
and OUT_ > ramp + V
TRK_F
cause a fault (see Figure 10). Therefore, if OUT1, OUT2, and OUT3 (during power-up tracking and power-down) differ by
more than 2 x V
TRK_F
, a fault condition is asserted.
Note 6:
A 100
pulldown to GND activated by a fault condition. See the
Internal Pulldown
section.
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
, IN1, IN2, or IN3 = +2.7V to +5.5V, EN/
UV
=
MARGIN
= ABP, T
A
= -40°C to +85°C, unless otherwise specified. Typical values
are at T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
V
HYS_PG
CONDITIONS
MIN
TYP
0.5
MAX
UNITS
%
Power-Good Threshold Hysteresis
V
OUT_
rising
GATE_ Output High
V
GOH
I
SOURCE
= 0.5μA
IN_ +
4.2
IN_ +
5.0
IN_ +
5.8
V
GATE_ Pullup Current
I
GUP
During power-up and power-down,
V
GATE_
= 1V
2.5
4
μA
I
GD
During power-up and power-down,
V
GATE_
= 5V
When disabled, V
GATE_
= 5V, V
IN_
≥
2.7V
When disabled, V
GATE_
= 5V, V
IN_
≥
4V
SET falling, 25mV overdrive
V
IN_
≥
2.7V, I
SINK
= 1mA, output asserted
V
IN_
≥
4.0V, I
SINK
= 4mA, output asserted
2.5
4
μA
9.5
20
6
GATE_ Pulldown Current
I
GDS
mA
SET_ to GATE_ Delay
t
D-GATE
μs
0.3
0.4
FAULT
, PG/
RST
Output Low
V
OL
V
Tracking Differential Voltage Stop
Ramp
V
TRK
Differential between each of the OUT_ and
the ramp voltage during power-up and
power-down, Figure 10 (Note 5)
75
125
180
mV
Tracking Differential Fault Voltage
V
TRK_F
Differential between each of the OUT_ and
the ramp voltage, Figure 10 (Note 5)
200
250
310
mV
Tracking Differential Voltage
Hysteresis
20
%
Power-Low Threshold
Power-Low Hysteresis
OUT to GND Pulldown Impedance
MARGIN
,
TRK
/SEQ,
LTCH
/RTR
Pullup Current
V
TH_PL
V
TH_PLHYS
OUT_ falling
OUT_ rising
V
ABP
> 2.7V (Note 6)
125
142
10
100
170
mV
mV
I
IN
7
10
13
μA
V
IL
V
IH
0.8
MARGIN
,
TRK
/SEQ,
LTCH
/RTR
Input Voltage
MARGIN
,
TRK
/SEQ,
LTCH
/RTR
Glitch Rejection
2.0
V
100
ns
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MAX6879ETE 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX6879ETE+ 功能描述:監(jiān)控電路 Dual Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX6879ETE+T 功能描述:監(jiān)控電路 Dual Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX6879ETE-T 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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