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参数资料
| 型号： | MAX6819UT+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | SOT23 Power-Supply Sequencers |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封装： | MO-178AB, SOT-23, 6 PIN |
| 文件页数： | 2/8页 |
| 文件大小： | 521K |
| 代理商： | MAX6819UT+T |
MAX6819/MAX6820
SOT23 Power-Supply Sequencers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1: 100% production tested at TA = +25°C. Specifications over temperature limit are guaranteed by design.
Note 2: Either VCC1 or VCC2 must be > 2.125V. The other supply can go to 0.
Note 3: Guaranteed by design, not production tested.
Note 4: tDELAY (s) = 2.48 106 CSET
Referenced to GND
VCC1, VCC2, EN .....................................................-0.3V to +6.0V
SETV, SETD..................-0.3V to the higher of (VCC1 + 0.3V) and
(VCC2 + 0.3V)
GATE ...................................................................-0.3V to +12.0V
Input Current/Output Current (all pins) ...............................20mA
Continuous Power Dissipation (TA = +70°C)
6-Pin SOT23 (derate 8.7mW/°C above +70°C)............696mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering 10s) ..................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Voltage Range
VCC1,
VCC2
(Note 2)
0.9
5.5
V
VCC1, VCC2 Supply Current
ICC
VCC1 = VCC2 = +3.3V
60
120
A
VCC1, VCC2 Disable Mode Current
VCC1 = VCC2 = +3.3V, EN = GND
20
A
MAX6819
6
VCC1, VCC2 Slew Rate (Note 3)
MAX6820 (Note 4)
1.2 / tDELAY
V/s
Undervoltage Lockout (UVLO)
VUVLO
1.875
2.0
2.125
V
SETV Threshold
VTH
VSETV rising, enables GATE
0.602
0.618
0.634
V
SETV Input Current
(Note 3)
10
100
nA
SETV Threshold Hysteresis
VSETV falling, disables GATE
-1
%
SETV to GATE Delay
tDELAY
VSETV > VTH, VEN
≥ 2V (MAX6819)
140
200
280
ms
SETD Ramp Current (MAX6820)
ISETD
VCC1 or V CC2 > +2.125V
400
500
600
nA
SETD Voltage (MAX6820)
VSETD
VCC1 or VCC2 > +2.125V
1.210
1.242
1.273
V
SETD Threshold Hysteresis
(MAX6820)
VSETD falling
-62
mV
GATE Turn-On Time
tON
CGATE = 1500pF, VCC2 = +3.3V, VGATE = +7.8V
0.5
1.5
10
ms
GATE Turn-Off Time
tOFF
CGATE = 1500pF, VCC2 = +3.3V, VGATE = +0.5V
30
s
With respect to VCC2 (Note 2)
RGATE > 50M
to VCC2
4.5
5.5
6.0
GATE Voltage
VGATE
With respect to VCC2 (Note 2)
RGATE > 5M
to VCC2
4.0
6.0
V
VIL
0.4
EN Input Voltage
VIH
VCC1 or VCC2 > +2.125V to + 5.5V
2.0
V
ELECTRICAL CHARACTERISTICS
(VCC1 or VCC2 > +2.125V to +5.5V, TA = -40°C to +125°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)
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