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ISL88042 の電気的特性と機能

ISL88042のメーカーはIntersil Corporationです、この部品の機能は「Quadruple Voltage Monitor」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL88042
部品説明 Quadruple Voltage Monitor
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL88042 Datasheet, ISL88042 PDF,ピン配置, 機能
®
Data Sheet
June 8, 2009
ISL88042
FN6655.1
Quadruple Voltage Monitor
The ISL88042 is a Quadruple voltage-monitoring supervisor
combining competitive reset threshold accuracy and low
power consumption. This device combines popular functions
such as Power-On Reset, Undervoltage Supply Supervision,
reset signaling and Manual Reset. Monitoring four different
supplies in a 8 Ld 2x3 TDFN package, the ISL88042 devices
can help to lower system cost, reduce board space
requirements, and increase the reliability of multi-voltage
systems.
Low VDD detection circuitry protects the user’s system from
low voltage conditions, resetting the system when VDD or
any of the other monitored power supply voltages fall below
their respective minimum voltage thresholds. The reset
signal remains asserted until all of these voltages return to
proper operating levels and stabilize.
Two of the four voltage monitors have preset thresholds for
either dual 3.3V or one each for one 5V and one 3.3V
supplies. Users can adjust the threshold voltages of the third
and fourth voltage monitors in order to meet specific system
level requirements.
Pinout
ISL88042
(8 LD TDFN)
TOP VIEW
MR 1
www.DataSheet4U.comVDD 2
V2MON 3
GND 4
EPAD
(GND)
8 RST
7 VDDA
6 V4MON
5 V3MON
Features
• Quadruple Voltage Monitoring
• Fixed-Voltage Options Allow Precise Monitoring of +5.0V
and +3.3V Power Supplies
• Two Adjustable Voltage Inputs Monitor Voltages > 0.6V
• 95ms Nominal Reset Pulse Width
• Manual Reset Capability
• Reset Signals Valid Down to VDD = 1V
• Immune to Power-Supply Transients
• Low 22µA Maximum Supply Current at 5V
• Pb-Free (RoHS Compliant)
Applications
• Telecom and Datacom Systems
• Routers and Servers
• Access Concentrators
• Cable/Satellite Applications
• Desktop and Notebook Computer Systems
• Data Storage Equipment
• Set-Top Boxes
• Industrial Equipment
• Multi-Voltage Systems
Ordering Information
PART NUMBER
(Notes 1, 2)
PART
MARKING
VTH1
(V)
VTH2
(V)
TEMP RANGE
(°C)
PACKAGE
Tape & Reel
(Pb-free)
PKG.
DWG. #
ISL88042IRTHFZ-T
4P6
4.60 3.09
-40 to +85
8 Ld TDFN
L8.2x3A
ISL88042IRTHFZ-TK
4P6
4.60 3.09
-40 to +85
8 Ld TDFN
L8.2x3A
ISL88042IRTEEZ-T
2P9
2.87 2.95
-40 to +85
8 Ld TDFN
L8.2x3A
ISL88042IRTEEZ-TK
2P9
2.87 2.95
-40 to +85
8 Ld TDFN
L8.2x3A
ISL88042IRTJJZ-T
2P8
2.78 2.86
-40 to +85
8 Ld TDFN
L8.2x3A
ISL88042IRTJJZ-TK
2P8
2.78 2.86
-40 to +85
8 Ld TDFN
L8.2x3A
NOTES:
1. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate
plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products
are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2008, 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

1 Page





ISL88042 pdf, ピン配列
ISL88042
Absolute Maximum Ratings
Temperature Under Bias . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
Voltage on VDD with Respect to GND. . . . . . . . . . . . . . -1.0V to +7V
Voltage on V3MON, V4MON . . . . . . . . . . . . . . . . . . . . . . -1.0V to 3V
Voltage on Any Other Pin. . . . . . . . . . . . . . . . . -1.0V to VDD + 0.3V
DC Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W) θJC (°C/W)
8 Ld TDFN Package (Notes 3, 4). . . . .
60
8
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Operating Temperature Range (Industrial) . . . . . . . .-40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTE:
3. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
4. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
Over the recommended operating conditions, unless otherwise specified. Parameters with MIN and/or MAX
limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
VDD
Supply Voltage Range
IDD1
VDD Supply Current
IDD2
V2MON Input Current
IDDA
V3MON, V4MON Input Current
VOLTAGE THRESHOLDS
VDD = 5.0V
V2MON = 3.3V
V3MON, V4MON = 1.0V
2.0 5.5 V
14 22 µA
5.5 8 µA
19 100 nA
VTH1 Fixed Voltage Trip Point for VDD
ISL88042IRTHFZ
ISL88042IRTEEZ
4.370
2.734
4.600
2.872
4.830
3.010
V
V
ISL88042IRTJJZ
2.647 2.78 2.914
V
VTH1HYST Hysteresis of VTH1
www.DataSheet4U.com
VTH2 Fixed Voltage Trip Point for V2MON
VTH1 = 4.60V
VTH1 = 2.87V
VTH1 = 2.78V
ISL88042IRTHFZ
ISL88042IRTEEZ
2.936
2.815
92
58
58
3.090
2.957
3.245
3.099
mV
mV
mV
V
V
ISL88042IRTJJZ
2.725 2.86 3.000
V
VTH2HYST Hysteresis of VTH2
VREF
ISL88042IRTHFZ, ISL88042IRTEEZ
Adj. Reset Threshold Voltage
VTH2 = 3.09V
VTH2 = 2.96V
VTH2 = 2.86V
VTH for V3MON, V4MON
0.572
61
60
60
0.600
0.630
mV
mV
V
VREF
ISL88042IRTJJZ Adj. Reset Threshold Voltage VTH for V3MON, V4MON
VREFHYST Hysteresis Voltage
RESET
0.554
0.581
12
0.610
V
mV
VOL Reset Output Voltage Low
tRPD
VTH to Reset Asserted Delay
VDD 3.3V, Sinking 2.5mA
VDD < 3.3V, Sinking 1.5mA
0.05 0.40
0.05 0.40
6
V
V
µs
3 FN6655.1
June 8, 2009


3Pages


ISL88042 電子部品, 半導体
ISL88042
The ISL88042EVAL1Z and Applications
The ISL88042EVAL1Z supports all variants of the ISL88042
devices, enabling evaluation of basic functional operation and
common application implementations. Figure 10 illustrates the
ISL88042EVAL1Z in schematic and photographic forms. The
ISL88042EVAL1Z is populated with the ISL88042IRTEEZ
(VDD VTH1 and V2MON VTH2 = 2.90V).
With adequate bias on the two preset and the two adjustable
monitor inputs the RST output will release to pull high
indicating that all supplies are compliant for a minimum of
tPOR. For the ISL88042EVAL1Z as shipped, the VDD and
V2MON nominal thresholds are as previously noted with the
voltage thresholds being monitored by V3MON and V4MON
being left open for programming via the non populated
resistor dividers.
Typical Performance Curves
3.20
3.15
ISL88042IRTHF VDD
3.10
3.05 ISL88042IRTHF V2MON
3.00
2.95
ISL88042IRTEE V2MON
2.90
ISL88042IRTEE VDD
2.85
4.60
4.59
4.58
4.57
4.56
4.55
4.54
2.80
-40 -20
0 25 50 85
TEMPERATURE (°C)
100 125
4.53
FIGURE 4. VDD and V2MON Vth vs TEMPERATURE
Special Application Considerations
Using good decoupling practices on bias and other
monitoring inputs will prevent transients (i.e. due to switching
noises and short duration droops in the supply voltage) from
causing unwanted resets.
In unusually noisy environments or situations where
unwanted signals may be injected into the adjustable VMON
inputs, lowering the node impedance and/or positioning a
small valued filter capacitor as close to the pin as possible
can increase noise immunity.
Although the internal ISL88042 threshold references are
guaranteed over the full temp range, accuracy errors due to
external component tolerances and distribution losses will
occur. High tolerance resistors and layout for extreme
accuracy and critical performance must be considered.
602
601
600
599
598
597
596
595
594
593
592
-40
V3MON
V4MON
-20 0 25 50 85 100 125
TEMPERATURE (°C)
FIGURE 5. V3MON and V4MON Vth vs TEMPERATURE
www.DataSh1e2e0t4U.com
115
110
105
100
95
90
85
80 -40 -20
0 25 50 85 100 125
TEMPERATURE (°C)
FIGURE 6. tpor vs TEMPERATURE
16
14
VDD = 5V
12
10
8
6
4
V2MON = 3.3V
2
0
-40 -20
0 25 50 85 100 125
TEMPERATURE (°C)
FIGURE 7. BIAS CURRENT vs TEMPERATURE
6 FN6655.1
June 8, 2009

6 Page



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部品番号部品説明メーカ
ISL88041

Quad Voltage Monitor

Intersil Corporation
Intersil Corporation
ISL88042

Quadruple Voltage Monitor

Intersil Corporation
Intersil Corporation


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