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PDF FP6812 Data sheet ( Hoja de datos )
| Número de pieza | FP6812 | |
| Descripción | Microprocessor Voltage Monitors | |
| Fabricantes | Fiti | |
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fitipower integrated technology lnc.
FP6811/6812
Microprocessor Voltage
Monitors with Manual Reset
Description
The FP6811 and FP6812 are cost-effective system
supervisory circuits which are designed to monitor
the power supply status in micro-processor (μP) and
digital systems. In addition, they provide a
de-bounced manual reset input pin to initiate a reset.
These circuits assert a reset signal whenever the
VCC supply voltage declines below a preset
threshold, keeping it asserted for at least 140ms
after VCC has risen above the reset threshold.
The FP6811-N has an open-drain output stage, while
FP6811-C and FP6812-C have push-pull outputs.
The FP6811-N’s open-drain output requires a pull-up
resistor. The FP6811 has an active-low
output while the FP6812 has an active-high RESET
output.
The FP6811 and FP6812 are optimized to reject fast
transient glitches on the VCC line. A low supply
current makes these devices suitable for portable
equipment. Each device is available in SOT-23-5,
SC-82 and SOT-143 packages.
Pin Assignments
S5 Package (SOT-23-5)
VCC
MR
54
1 23
NC GND RESET
(RESET)
C8 Package (SC-82)
VCC MR
43
12
GND RESET
(RESET)
FP6811/6812-1.7-MAR-2012
Features
● Precision Monitoring of Power-Supply Voltage
● 140ms Guaranteed Minimum Reset Output
Duration
● Low Supply Current
● VCC Transient Immunity
● Small SOT-23-5, SC-82 and SOT-143 Packages
● No External Components
● Guaranteed Reset Valid to VCC=1V
● Available in Three Output Configurations
Open-Drain
Output (FP6811-N)
Push-Pull
Output (FP6811-C)
Push-Pull RESET Output (FP6812-C)
● RoHS Compliant
Applications
● Computer
● Battery Powered Equipment
● Microprocessor Power Supply Monitoring
● Embedded System
● Automotive
Ordering Information
FP6811/12-□□□□□
TR: Tape/Reel
P: Green
G: Green
Package Type
C8: SC-82
SA: SOT-143
S5: SOT-23-5
N: Open-Drain
(FP6811only)
C: Push-Pull
R2C3e::sP2eu.t3sVh2o-VPltauglle40: 4.00V
26: 2.63V 44: 4.38V
29: 2.93V 46: 4.63V
31: 3.08V
FP6811: Active Low Reset
FP6812: Active High Reset
Note1：Please consult Fitipower sales office or authorized
distributors for availability of special reset
voltages.
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fitipower integrated technology lnc.
FP6811/6812
Electrical Characteristics
(VCC=full range, TA=25°C, unless otherwise specified.)
Parameter
Symbol
Conditions
VCC Range
VCC
Supply Current
VCC<5.5V, FP68__-46/44/40
ICC
VCC<3.6V, FP68__-23/26/29/31
FP6811-46/ FP6812-46
FP6811-44/ FP6812-44
FP6811-40/ FP6812-40
Reset Threshold
VTH FP6811-31/ FP6812-31
FP6811-29/ FP6812-29
FP6811-26/ FP6812-26
FP6811-23/ FP6812-23
Reset Threshold T.C. (Note3)
Input Threshold
VIH
VCC > VTH(MAX), VCC≧3V
VIL
VIH
VCC > VTH(MAX), VCC<3V
VIL
Glitch Immunity (Note3)
VCC to Reset Delay (Note3)
VCC=VTH to (Vth-100mV)
Reset Active Timeout Period
TRP
Output Voltage Low
(Push-Pull active low and
Open-Drain active low,
FP6811)
VCC=VTH min, ISINK=1.2mA,
FP6811-23/26/29/31
VOL
VCC=VTH min, ISINK=3.2mA,
FP6811-44/46
VCC>1.0V, ISINK=50μA
RESET Output Voltage Low
(push-pull active high,
FP6812)
Output Voltage High
(push-pull active low,
FP6811)
RESET Output Voltage High
(push-pull active high,
FP6812)
VCC=VTH max, ISINK=1.2mA,
VOL
FP6811-23/26/29/31
VCC=VTH max, ISINK=3.2mA,
FP6811-44/46
VCC>VTH max, ISOURCE=500μA,
VOH
FP6811-23/26/29/31
VCC>VTH max, ISOURCE=800μA,
FP6811-44/46
VOH
1.8V<VCC<VTH min,
ISOURCE=150μA
Open-Drain Output
Leakage Current (FP6811-N)
VCC>VTH, RESET de-asserted
Note 3：The specification is guaranteed by design, not production tested.
FP6811/6812-1.7-MAR-2012
Min
1.0
4.54
4.29
3.92
3.02
2.87
2.58
2.27
2.3
0.7VCC
140
0.8Vcc
Vcc-1.5
0.8Vcc
Typ.
3
3
4.63
4.38
4.00
3.08
2.93
2.63
2.32
30
100
20
240
Max Unit
5.5 V
µA
4.72
4.47
4.08
3.14 V
2.99
2.68
2.37
ppm/°C
0.8
V
0.25VCC
560
0.3
0.4
0.3
0.3
0.4
ns
μs
ms
V
V
V
V
V
V
1 µA
5
5 Page 
fitipower integrated technology lnc.
FP6811/6812
Outline Information (Continued)
SC-82 Package (Unit: mm)
SYMBOLS
UNIT
A
A1
A2
B
B1
D
E
E1
e
L
DIMENSION IN MILLIMETER
MIN MAX
0.80 1.10
0.00 0.10
0.80 1.00
0.25 0.40
0.35 0.50
1.80 2.20
1.15 1.35
1.80 2.40
1.20 1.40
0.25 0.45
Carrier Dimensions
FP6811/6812-1.7-MAR-2012
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet FP6812.PDF ] | |
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