MIC2779(2000) 查看數據表（PDF） - Micrel
零件编号
产品描述 (功能)
生产厂家
MIC2779 Datasheet PDF : 8 Pages
| |||
MIC2779
Absolute Maximum Ratings (Note 1)
Supply Voltage (VDD) ..................................... –0.3V to +7V
Input Voltages (VLTH, VHTH, V/RST, VRST) ..... –0.3V to +7V
/RST, RST Output Current (I/RST), (IRST) ................... 20mA
Storage Temperature (TS) ....................... –65°C to +150°C
ESD Rating, Note 3 ...................................................... 2kV
Micrel
Operating Ratings (Note 2)
Supply Voltage (VDD) .................................. +1.5V to +5.5V
Input Voltages (VLTH, VHTH, V/RST, VRST) .. –0.3V to +6.0V
Ambient Temperature Range (TA) ............. –40°C to +85°C
Package Thermal Resistance ............................... 256°C/W
Electrical Characteristics
1.5V ≤ VDD ≤ 5.5V; TA = +25°C, bold values indicate –40°C ≤ TA ≤ +85°C; unless noted
Symbol
Parameter
Condition
IDD
ILTH, IHTH
Supply Current
Input Leakage Current
/RST, RST not asserted
Min Typ
1
5
VREF
Reference Voltage
MIC2779H/L-2
1.240
1.215
MIC2779H/L-1
1.228
tD
tRESET
VOL
Propagation Delay
Reset Pulse Width
Reset Output Low Voltage
VOH
Reset Output High Voltage
VLTH = VREF(max) +100mV to
VREF(min) – 100mV
/RST asserted or RST not asserted,
ISINK = 1.6mA, VDD ≥ 1.6V
/RST asserted or RST not asserted,
ISINK = 100µA, VDD ≥ 1.2V,
/RST not asserted or RST asserted,
ISOURCE = 500µA, VDD ≥ 1.6V
/RST not asserted or RST asserted,
ISOURCE = 50µA, VDD ≥ 1.2V,
5
140
0.8VDD
0.8VDD
Note 1.
Note 2.
Note 3.
Note 4.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
VDD operating range is 1.5V to 5.5V. Output is guaranteed to be held low down to VDD = 1.2V.
Max
2
10
1.265
1.252
420
0.3
0.4
Units
µA
pA
nA
V
V
V
µs
ms
V
V
V
V
Timing Diagram
June 2000
VHTH
VBATT
VLTH
0V
V/RST
VOH
VOL
VRST
VOH
VOL
A
tRST
A
tRST
Propagation delays not shown for clarity.
Note A. The MIC2779 ignores very brief transients.
See “Applications Information” for details.
3
MIC2779
Share Link: 