MAX6314US44D1+ [ROCHESTER]
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4, LEAD FREE, SOT-143, 4 PIN;
| 型号： | MAX6314US44D1+ |
| 厂家： | 
Rochester Electronics |
| 描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4, LEAD FREE, SOT-143, 4 PIN 光电二极管 |
| 文件： | 总9页 (文件大小：1143K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1090; Rev 2; 12/05
68HC11/Bidirectional-Compatible
µP Reset Circuit
General Description
Features
The MAX6314 low-power CMOS microprocessor (µP)
supervisory circuit is designed to monitor power
supplies in µP and digital systems. The MAX6314’s
RESET output is bidirectional, allowing it to be directly
connected to µPs with bidirectional reset inputs, such
as the 68HC11. It provides excellent circuit reliability
and low cost by eliminating external components and
adjustments. The MAX6314 also provides a debounced
manual reset input.
♦ Small SOT143 Package
♦ RESET Output Simplifies Interface to
Bidirectional Reset I/Os
♦ Precision Factory-Set V
Reset Thresholds:
CC
100mV Increments from 2.5V to 5V
♦
♦
1.ꢀ8 Reset Threshold ꢁccuracy at T = +25°C
ꢁ
2.58 Reset Threshold ꢁccuracy Oꢂer Temp.
♦ Four Reset Timeout Periods ꢁꢂailable:
This device performs a single function: it asserts a reset
1ms, 20ms, 140ms, or 1120ms (minimum)
signal whenever the V
supply voltage falls below a
CC
♦ Immune to Short V
Transients
CC
preset threshold or whenever manual reset is asserted.
Reset remains asserted for an internally programmed
♦ 5µꢁ Supply Current
♦ Pin-Compatible with MꢁXꢀ11
interval (reset timeout period) after V
has risen above
CC
the reset threshold or manual reset is deasserted.
Ordering Information
The MAX6314 comes with factory-trimmed reset
threshold voltages in 100mV increments from 2.5V
to 5V. Preset timeout periods of 1ms, 20ms, 140ms,
and 1120ms (minimum) are also available. The device
comes in a SOT143 package.
NOMINꢁL MIN t
TOP
MꢁRK
RP
†
PꢁRT
††
V
(V)
(ms)
TH
MAX6314US50D1-T
MAX6314US49D1-T
MAX6314US48D1-T
MAX6314US47D1-T
MAX6314US46D1-T
MAX6314US45D1-T
5.00
4.90
4.80
4.70
4.63
4.50
1
1
1
1
1
1
AA_ _
AB_ _
AC_ _
AD_ _
AE_ _
AF_ _
For a µP supervisor with an open-drain reset pin, see
the MAX6315 data sheet.
________________________Applications
Computers
Controllers
†
The MAX6314 is available in a SOT143 package, -40°C to
+85°C temperature range.
The first two letters in the package top mark identify the part,
Intelligent Instruments
††
Critical µP and µC Power Monitoring
Portable/Battery-Powered Equipment
while the remaining two letters are the lot tracking code.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Typical Operating Circuit
V
CC
Ordering Information continued at end of data sheet.
V
CC
LASER-
TRIMMED
RESISTORS
68HC11**
Pin Configuration
V
CC
TOP VIEW
1
4
GND
V
CC
µP
4.7kΩ
RESET
MAX6314
RESET
RESET
CIRCUITRY
MR
RESET
2
3
MR
MAX6314
GND
SOT143
**OR OTHER µC/µP WITH BIDIRECTIONAL RESET I/O PIN.
*Patents Pending
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
68HC11/Bidirectional-Compatible
µP Reset Circuit
ꢁBSOLUTE MꢁXIMUM RꢁTINGS
V
........................................................................-0.3V to +6.0V
Continuous Power Dissipation (T = +70°C)
A
CC
All Other Pins..............................................-0.3V to (V
+ 0.3V)
SOT143 (derate 4mW/°C above +70°C).......................320mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
CC
Input Current (V ).............................................................20mA
CC
Output Current (RESET)......................................................20mA
Rate of Rise (V )...........................................................100V/µs
CC
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.
ELECTRICꢁL CHꢁRꢁCTERISTICS
(V
CC
= +2.5V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.)
A
A
PꢁRꢁMETER
SYMBOL
CONDITIONS
= 0°C to +70°C
A
MIN
1.0
TYP
MꢁX
5.5
12
UNITS
Operating Voltage Range
V
T
V
CC
V
CC
V
CC
= 5.5V, no load
= 3.6V, no load
5
4
V
Supply Current
I
µA
V
CC
CC
10
T
A
T
A
= +25°C
= -40°C to +85°C
V
V
- 1.8%
- 2.5%
V
TH
V
V
+ 1.8%
+ 2.5%
TH
TH
TH
TH
Reset Threshold (Note 1)
Reset Threshold Tempco
V
TH
∆V /°C
60
35
1.4
28
200
1570
ppm/°C
µs
TH
V
to Reset Delay
V
CC
= falling at 1mV/µs
CC
MAX6314US_ _D1-T
MAX6314US_ _D2-T
MAX6314US_ _D3-T
MAX6314US_ _D4-T
1
20
140
1120
2
40
280
2240
2.4
Reset Timeout Period
t
ms
RP
MꢁNUꢁL RESET INPUT
V
0.8
IL
V
V
> 4.0V
< 4.0V
TH
V
IH
V
MR Input Threshold
V
0.3 x V
IL
CC
TH
V
0.7 x V
IH
CC
1
µs
ns
ns
kΩ
MR Minimum Input Pulse
MR Glitch Rejection
MR to Reset Delay
100
500
63
32
100
0.4
0.3
0.3
0.3
MR Pullup Resistance
V
CC
V
CC
V
CC
V
CC
> 4.25V, I
= 3.2mA
SINK
> 2.5V, I
> 1.2V, I
> 1.0V, I
= 1.2mA
= 0.5mA
= 80µA
SINK
SINK
SINK
V
V
RESET Output Voltage
OL
RESET INTERNꢁL PULLUP
Transition Flip-Flop Setup Time (Note 2)
t
400
ns
V
mA
kΩ
S
Active Pullup Enable Threshold
RESET Active Pullup Current
RESET Pullup Resistance
V
V
= 5V
= 5V
0.4
4.2
0.9
CC
20
4.7
CC
5.2
333
666
333
666
C
C
C
C
= 120pF
= 250pF
= 200pF
= 400pF
LOAD
LOAD
LOAD
LOAD
V
V
= 3V
CC
RESET Output Rise Time
(Note 3)
t
R
ns
= 5V
CC
Note 1: The MAX6314 monitors V
through an internal, factory-trimmed voltage divider that programs the nominal reset threshold.
CC
Factory-trimmed reset thresholds are available in 100mV increments from 2.5V to 5V (see Ordering and Marking Information).
Note 2: This is the minimum time RESET must be held low by an external pull-down source to set the active pull-up flip-flop.
Note 3: Measured from RESET V to (0.8 x V ), R = ∞.
LOAD
OL
CC
2
_______________________________________________________________________________________
68HC11/Bidirectional-Compatible
µP Reset Circuit
__________________________________________Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
SUPPLY CURRENT vs. TEMPERATURE
PULLUP CHARACTERISTICS
MAX6314-01
6
5
4
3
2
1
0
+5V
4.7kΩ
74HC05
4.7kΩ PULL-UP
100pF
2V/div
V
= 5V
CC
MAX6314 PULL-UP
2V/div
+5V
74HC05
V
CC
= 3V
V
CC
RESET
100pF
MAX6314
INPUT
5V/div
GND
MR
V
CC
= 1V
-50 -30 -10 10
30
50
70
90
200ns/div
TEMPERATURE (°C)
NORMALIZED RESET TIMEOUT PERIOD
SUPPLY CURRENT
POWER-DOWN RESET DELAY
vs. TEMPERATURE (V RISING)
vs. SUPPLY VOLTAGE
vs. TEMPERATURE
CC
1.04
1.03
50
40
6
5
4
3
2
1
0
V
FALLING AT 1mV/µs
CC
1.02
1.01
V
= 4.63V
TH
T
A
= +85°C
30
20
10
0
1.00
0.99
0.98
0.97
V
= 3.00V
TH
T
1
= +25°C
A
T
A
= -40°C
0.96
-50 -30 -10 10
30
50
70
90
-50 -30 -10 10
30
50
70
90
0
2
3
5
4
TEMPERATURE (°C)
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
NORMALIZED RESET THRESHOLD
MAXIMUM TRANSIENT DURATION
vs. RESET COMPARATOR OVERDRIVE
RESET PULLUP TIME
vs. TEMPERATURE
vs. TEMPERATURE (V FALLING)
CC
100
80
60
40
20
0
1.006
1.004
1.002
1.000
0.998
0.996
0.994
600
500
400
300
200
100
0
T
A
= +25°C
RESET OCCURS
ABOVE CURVE
C
L
= 390pF
V
TH
= 4.63V
C
= 100pF
30
L
V
TH
= 3.00V
10
100
1000
-50 -30 -10 10
30
50
70
90
-50 -30 -10 10
50
70
90
RESET COMP. OVERDRIVE, V - V (mV)
TEMPERATURE (°C)
TEMPERATURE (°C)
TH
CC
_______________________________________________________________________________________
3
68HC11/Bidirectional-Compatible
µP Reset Circuit
______________________________________________________________Pin Description
PIN
NꢁME
FUNCTION
1
GND
Ground
Active-Low Complementary Output. In addition to the normal n-channel pulldown, RESET has a p-channel
pullup transistor in parallel with a 4.7kΩ resistor to facilitate connection to µPs with bidirectional resets. See
the Reset Output section.
2
RESET
MR
Manual Reset Input. A logic low on MR asserts reset. Reset remains asserted as long as MR is low, and for
3
4
the reset timeout period (t ) after the reset conditions are terminated. Connect to V
if not used.
RP
CC
V
CC
Supply Voltage and Reset Threshold Monitor Input
V
CC
LASER-
TRIMMED
RESISTORS
MAX6314
VREF
V
CC
63kΩ
RESET
MR
GENERATOR
V
CC
2µs ONE-SHOT
TRANSITION
FLIP-FLOP
R
Q
4.7kΩ
FF
S
RESET
ACTIVE PULLUP
ENABLE COMPARATOR
0.5V
GND
Figure 1. Functional Diagram
_______________________________________________________________________________________
4
68HC11/Bidirectional-Compatible
µP Reset Circuit
scratch. If, on the other hand, RESET is high after the
Detailed Description
two E-clock cycle delay, the processor knows that it
caused the reset itself and can jump to a different vec-
tor and use stored state information to determine what
caused the reset.
The MAX6314 has a reset output consisting of a 4.7kΩ
pull-up resistor in parallel with a P-channel transistor
and an N-channel pull down (Figure 1), allowing this IC
to directly interface with microprocessors (µPs) that
have bidirectional reset pins (see the Reset Output
section).
The problem occurs with faster µPs; two E-clock cycles
is only 500ns at 4MHz. When there are several devices
on the reset line, the input capacitance and stray
capacitance can prevent RESET from reaching the
Reset Output
A µP’s reset input starts the µP in a known state. The
MAX6314 asserts reset to prevent code-execution
errors during power-up, power-down, or brownout
conditions. RESET is guaranteed to be a logic low for
logic-high state (0.8 x V ) in the allowed time if only a
CC
passive pullup resistor is used. In this case, all resets
will be interpreted as external. The µP is guaranteed to
sink only 1.6mA, so the rise time cannot be much
reduced by decreasing the recommended 4.7kΩ
pullup resistance.
V
> 1V (see the Electrical Characteristics table).
CC
Once V
exceeds the reset threshold, the internal
CC
timer keeps reset asserted for the reset timeout period
The MAX6314 solves this problem by including a pullup
transistor in parallel with the recommended 4.7kΩ resis-
tor (Figure 1). The pullup resistor holds the output high
until RESET is forced low by the µP reset I/O, or by the
MAX6314 itself. Once RESET goes below 0.5V, a com-
parator sets the transition edge flip-flop, indicating that
the next transition for RESET will be low to high. As
soon as RESET is released, the 4.7kΩ resistor pulls
(t ); after this interval RESET goes high. If a brownout
RP
condition occurs (monitored voltage dips below its pro-
grammed reset threshold), RESET goes low. Any time
V
dips below the reset threshold, the internal timer
CC
resets to zero and RESET goes low. The internal timer
starts when V
returns above the reset threshold, and
CC
RESET remains low for the reset timeout period.
The MAX6314’s RESET output is designed to interface
with µPs that have bidirectional reset pins, such as the
Motorola 68HC11. Like an open-drain output, the
MAX6314 allows the µP or other devices to pull RESET
low and assert a reset condition. However, unlike a
standard open-drain output, it includes the commonly
specified 4.7kΩ pullup resistor with a P-channel active
pullup in parallel.
RESET up toward V . When RESET rises above 0.5V,
CC
the active p-channel pullup turns on for the 2µs
duration of the one-shot. The parallel combination of the
4.7kΩ pullup and the p-channel transistor on-
resistance quickly charges stray capacitance on the
reset line, allowing RESET to transition low to high with-
in the required two E-clock period, even with several
devices on the reset line (Figure 2). Once the one-shot
times out, the p-channel transistor turns off. This
process occurs regardless of whether the reset was
This configuration allows the MAX6314 to solve a prob-
lem associated with µPs that have bidirectional reset
pins in systems where several devices connect to
RESET. These µPs can often determine if a reset was
asserted by an external device (i.e., the supervisor IC)
or by the µP itself (due to a watchdog fault, clock error,
or other source), and then jump to a vector appropriate
for the source of the reset. However, if the µP does
assert reset, it does not retain the information, but must
determine the cause after the reset has occurred.
caused by V
dipping below the reset threshold, MR
CC
being asserted, or the µP or other device asserting
RESET. Because the MAX6314 includes the standard
4.7kΩ pullup resistor, no external pullup resistor is
required. To minimize current consumption, the internal
pullup resistor is disconnected whenever the MAX6314
asserts RESET.
Manual Reset Input
Many µP-based products require manual reset capabil-
ity, allowing the operator, a test technician, or external
logic circuitry to initiate a reset. A logic low on MR
asserts reset. Reset remains asserted while MR is low,
and for the reset active timeout period after MR returns
high. To minimize current consumption, the internal
4.7kΩ pullup resistor on RESET is disconnected
whenever RESET is asserted.
The following procedure describes how this is done
with the Motorola 68HC11. In all cases of reset, the µP
pulls RESET low for about four E-clock cycles. It then
releases RESET, waits for two E-clock cycles, then
checks RESET’s state. If RESET is still low, the µP con-
cludes that the source of the reset was external and,
when RESET eventually reaches the high state, jumps
to the normal reset vector. In this case, stored state
information is erased and processing begins from
_______________________________________________________________________________________
5
68HC11/Bidirectional-Compatible
µP Reset Circuit
V
CC
V
CC
68HC11
4.7kΩ
RESET
RESET
RESET
RESET
CIRCUITRY
CIRCUITRY
MR
C
IN
C
STRAY
C
IN
MAX6314
RESET
C
IN
OTHER DEVICES
Figure 2. MAX6314 Supports Additional Devices on the Reset Bus
MR has an internal 63kΩ pullup resistor, so it can be
left open if not used. Connect a normally open momen-
tary switch from MR to GND to create a manual reset
function; external debounce circuitry is not required. If
MR is driven from long cables or if the device is used in
a noisy environment, connecting a 0.1µF capacitor from
MR to ground provides additional noise immunity.
Ensuring a Valid RESET Output
Down to V = 0V
CC
falls below 1V, RESET no longer sinks
When V
CC
current—it becomes an open circuit. Therefore, high-
impedance CMOS-logic inputs connected to RESET
can drift to undetermined voltages. This presents no
problem in most applications, since most µP and other
circuitry is inoperative with V
below 1V. However, in
CC
__________Applications Information
applications where RESET must be valid down to
= 0V, adding a pull-down resistor to RESET will
V
CC
Negative-Going V
Transients
CC
cause any stray leakage currents to flow to ground,
holding RESET low (Figure 3). R1’s value is not critical;
100kΩ is large enough not to load RESET and small
enough to pull RESET to ground.
In addition to issuing a reset to the µP during power-up,
power-down, and brownout conditions, these devices
are relatively immune to short-duration negative-going
transients (glitches). The Typical Operating Character-
istics show the Maximum Transient Duration vs. Reset
Threshold Overdrive, for which reset pulses are not
generated. The graph was produced using negative-
V
CC
going pulses, starting at V
max and ending below
RST
the programmed reset threshold by the magnitude
indicated (reset threshold overdrive). The graph shows
MAX6314
the maximum pulse width that a negative-going V
CC
RESET
transient may typically have without causing a reset
pulse to be issued. As the amplitude of the transient
increases (i.e., goes farther below the reset threshold),
the maximum allowable pulse width decreases. A 0.1µF
R1
GND
bypass capacitor mounted close to V
tional transient immunity.
provides addi-
CC
Figure 3. RESET Valid to V
= Ground Circuit
CC
6
_______________________________________________________________________________________
68HC11/Bidirectional-Compatible
µP Reset Circuit
V
CC
t
0.8 x V
RP
CC
RESET
OR
µC RESET DELAY
0.5V
t
R
t
S
ACTIVE
PULL-UP
TURNS ON
RESET PULLED LOW
BY µC OR
RESET GENERATOR
Figure 4. RESET Timing Diagram
___________________________________________Ordering Information (continued)
NOMINꢁL MIN t
TOP
MꢁRK
NOMINꢁL MIN t
TOP
MꢁRK
RP
RP
†
†
PꢁRT
PꢁRT
††
††
V
(V)
(ms)
V
(V)
(ms)
TH
TH
†††
MꢁX6314US44D1-T
MAX6314US43D1-T
MAX6314US42D1-T
MAX6314US41D1-T
MAX6314US40D1-T
MAX6314US39D1-T
MAX6314US38D1-T
MAX6314US37D1-T
MAX6314US36D1-T
MAX6314US35D1-T
MAX6314US34D1-T
MAX6314US33D1-T
MAX6314US32D1-T
MAX6314US31D1-T
MAX6314US30D1-T
MAX6314US29D1-T
MAX6314US28D1-T
MAX6314US27D1-T
MꢁX6314US26D1-T
4.39
4.30
4.20
4.10
4.00
3.90
3.80
3.70
3.60
3.50
3.40
3.30
3.20
3.08
3.00
2.93
2.80
2.70
2.63
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AG_ _
AH_ _
AI_ _
MAX6314US25D1-T
MAX6314US50D2-T
MAX6314US49D2-T
MAX6314US48D2-T
MAX6314US47D2-T
MAX6314US46D2-T
MAX6314US45D2-T
MꢁX6314US44D2-T
MAX6314US43D2-T
MAX6314US42D2-T
MAX6314US41D2-T
MAX6314US40D2-T
MAX6314US39D2-T
MAX6314US38D2-T
MAX6314US37D2-T
MAX6314US36D2-T
MAX6314US35D2-T
MAX6314US34D2-T
MAX6314US33D2-T
2.50
5.00
4.90
4.80
4.70
4.63
4.50
4.39
4.30
4.20
4.10
4.00
3.90
3.80
3.70
3.60
3.50
3.40
3.30
1
CN_ _
CO_ _
CP_ _
CQ_ _
CR_ _
CS_ _
CT_ _
CU_ _
CV_ _
CW_ _
CX_ _
CY_ _
CZ_ _
DA_ _
DB_ _
DC_ _
DD_ _
DE_ _
DJ_ _
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
AJ_ _
AK_ _
AL_ _
CA_ _
CB_ _
CC_ _
CD_ _
CE_ _
CF_ _
CG_ _
CH_ _
CI_ _
†††
CJ_ _
CK_ _
CL_ _
CM_ _
†††
†
††
†††
The MAX6314 is available in a SOT143 package, -40°C to +85°C temperature range.
The first two letters in the package top mark identify the part, while the remaining two letters are the lot tracking code.
Sample stocks generally held on the bolded products; also, the bolded products have 2,500 piece minimum-order quantities.
Non-bolded products have 10,000 piece minimum-order quantities. Contact factory for details.
Devices are available in both leaded and lead-free packaging. Specify lead-free by replacing “-T” with “+T” when ordering.
Note: All devices available in tape-and-reel only. Contact factory for availability.
_______________________________________________________________________________________
7
68HC11/Bidirectional-Compatible
µP Reset Circuit
_____________________________Ordering and Marking Information (continued)
NOMINꢁL MIN t
TOP
MꢁRK
NOMINꢁL MIN t
TOP
MꢁRK
RP
RP
†
†
PꢁRT
PꢁRT
††
††
V
(V)
(ms)
TH
V
(V)
(ms)
TH
MAX6314US32D2-T
MAX6314US31D2-T
MAX6314US30D2-T
MAX6314US29D2-T
MAX6314US28D2-T
MAX6314US27D2-T
MꢁX6314US26D2-T
MAX6314US25D2-T
MAX6314US50D3-T
MAX6314US49D3-T
MAX6314US48D3-T
MAX6314US47D3-T
MꢁX6314US46D3-T
MAX6314US45D3-T
MꢁX6314US44D3-T
MAX6314US43D3-T
MAX6314US42D3-T
MAX6314US41D3-T
MAX6314US40D3-T
MAX6314US39D3-T
MAX6314US38D3-T
MAX6314US37D3-T
MAX6314US36D3-T
MAX6314US35D3-T
MAX6314US34D3-T
MAX6314US33D3-T
MAX6314US32D3-T
MꢁX6314US31D3-T
MAX6314US30D3-T
MꢁX6314US29D3-T
3.20
3.08
3.00
2.93
2.80
2.70
2.63
2.50
5.00
4.90
4.80
4.70
4.63
4.50
4.39
4.30
4.20
4.10
4.00
3.90
3.80
3.70
3.60
3.50
3.40
3.30
3.20
3.08
3.00
2.93
20
20
DK_ _
DL_ _
DM_ _
DN_ _
DO_ _
DP_ _
DQ_ _
DR_ _
DS_ _
DT_ _
DU_ _
DV_ _
DW_ _
DX_ _
DY_ _
DZ_ _
EA_ _
EB_ _
EC_ _
EG_ _
EH_ _
EI_ _
MAX6314US28D3-T
MAX6314US27D3-T
MꢁX6314US26D3-T
MAX6314US25D3-T
MAX6314US50D4-T
MAX6314US49D4-T
MAX6314US48D4-T
MAX6314US47D4-T
MAX6314US46D4-T
MAX6314US45D4-T
MꢁX6314US44D4-T
MAX6314US43D4-T
MAX6314US42D4-T
MAX6314US41D4-T
MAX6314US40D4-T
MAX6314US39D4-T
MAX6314US38D4-T
MAX6314US37D4-T
MAX6314US36D4-T
MAX6314US35D4-T
MAX6314US34D4-T
MAX6314US33D4-T
MAX6314US32D4-T
MAX6314US31D4-T
MAX6314US30D4-T
MAX6314US29D4-T
MAX6314US28D4-T
MAX6314US27D4-T
MꢁX6314US26D4-T
MAX6314US25D4-T
2.80
2.70
2.63
2.50
5.00
4.90
4.80
4.70
4.63
4.50
4.39
4.30
4.20
4.10
4.00
3.90
3.80
3.70
3.60
3.50
3.40
3.30
3.20
3.08
3.00
2.93
2.80
2.70
2.63
2.50
140
ET_ _
EU_ _
EV_ _
EW_ _
EX_ _
EY_ _
EZ_ _
FA_ _
FB_ _
FC_ _
FD_ _
FE_ _
FF_ _
FG_ _
FH_ _
FI_ _
140
20
†††
140
20
140
20
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
1120
20
†††
20
20
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
†††
†††
†††
FJ_ _
FK_ _
FL_ _
FM_ _
FN_ _
FO_ _
FP_ _
FQ_ _
FR_ _
FS_ _
FT_ _
FU_ _
FV_ _
FW_ _
EJ_ _
EK_ _
EL_ _
EM_ _
EN_ _
EO_ _
EP_ _
ES_ _
†††
†††
†††
†
††
†††
The MAX6314 is available in a SOT143 package, -40°C to +85°C temperature range.
The first two letters in the package top mark identify the part, while the remaining two letters are the lot tracking code.
Sample stocks generally held on the bolded products; also, the bolded products have 2,500 piece minimum-order quantities.
Non-bolded products have 10,000 piece minimum-order quantities. Contact factory for details.
Devices are available in both leaded and lead-free packaging. Specify lead-free by replacing “-T” with “+T” when ordering.
Note: All devices available in tape-and-reel only. Contact factory for availability.
Chip Information
Package Information
For the latest package outline information, go to
TRANSISTOR COUNT: 519
www.maxim-ic.com/packages.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
ꢀ _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2005 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products, Inc.
相关型号：
MAX6314US44D2+T
Power Supply Support Circuit, Fixed, 1 Channel, +4.39VV, CMOS, PDSO4, LEAD FREE, SOT-143, 4 PIN
MAXIM
MAX6314US45D2+T
Power Supply Support Circuit, Fixed, 1 Channel, +4.5VV, CMOS, PDSO4, LEAD FREE, SOT-143, 4 PIN
MAXIM
MAX6314US45D3+T
Power Supply Support Circuit, Fixed, 1 Channel, +4.5VV, CMOS, PDSO4, LEAD FREE, SOT-143, 4 PIN
MAXIM
©2020 ICPDF网 联系我们和版权申明