19-3673; Rev 3; 11/06
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
The MAX6895–MAX6899 is a family of small, low-power,
voltage-monitoring circuits with sequencing capability.
These miniature devices offer tremendous flexibility with
an adjustable threshold capable of monitoring down to
0.5V and an external capacitor-adjustable time delay.
These devices are ideal for use in power-supply
sequencing, reset sequencing, and power-switching
applications. Multiple devices can be cascaded for
complex sequencing applications.
A high-impedance input with a 0.5V threshold allows an
external resistive divider to set the monitored threshold.
The output asserts (OUT = high or OUT = low) when
the input voltage rises above the 0.5V threshold and the
enable input is asserted (ENABLE = high or ENABLE =
low). When the voltage at the input falls below 0.5V or
when the enable input is deasserted (ENABLE = low or
ENABLE = high), the output deasserts (OUT = low or
OUT = high). All devices provide a capacitor-programmable delay time from when the input rises above 0.5V
to when the output is asserted. The MAX689_A versions
provide the same capacitor-adjustable delay from when
enable is asserted to when the output asserts. The
MAX689_P devices have a 1µs propagation delay from
when enable is asserted to when the output asserts.
The MAX6895A/P offers an active-high enable input
and an active-high push-pull output. The MAX6896A/P
offers an active-low enable input and an active-low
push-pull output. The MAX6897A/P offers an activehigh enable input and an active-high open-drain output.
Finally, the MAX6898A/P offers an active-low enable
input and an active-low open-drain output. The
MAX6899A/P offers an active-low enable with an activehigh push-pull output.
All devices operate from a 1.5V to 5.5V supply voltage
and are fully specified over the -40°C to +125°C operating temperature range. Each device is available in an
ultra-small 6-pin µDFN (1.0mm x 1.5mm) package.
Features
♦ 1.8% Accurate Adjustable Threshold Over
Temperature
♦ Operate from VCC of 1.5V to 5.5V
♦ Capacitor-Adjustable Delay
♦ Active-High/-Low Enable Input Options
♦ Active-High/-Low Output Options
♦ Open-Drain (28V Tolerant)/Push-Pull Output
Options
♦ Low Supply Current (10µA, typ)
♦ Fully Specified from -40°C to +125°C
♦ Ultra-Small 6-Pin µDFN Package (1.5mm x 1.0mm
x 0.8mm)
Ordering Information
PART
TEMP RANGE
Computers/Servers
Medical Equipment
Critical µP Monitoring
Intelligent Instruments
Set-Top Boxes
Portable Equipment
Telecom
Typical Operating Circuit and Selector Guide appear at end
of data sheet.
TOP
MARK
MAX6895AALT+T
-40°C to +125°C 6 µDFN-6
AW
MAX6895PALT+T
-40°C to +125°C 6 µDFN-6
AX
MAX6896AALT+T
-40°C to +125°C 6 µDFN-6
AY
MAX6896PALT+T
-40°C to +125°C 6 µDFN-6
AZ
MAX6897AALT+T
-40°C to +125°C 6 µDFN-6
BA
MAX6897PALT+T
-40°C to +125°C 6 µDFN-6
BB
MAX6898AALT+T
-40°C to +125°C 6 µDFN-6
BD
MAX6898PALT+T
-40°C to +125°C 6 µDFN-6
BC
MAX6899AALT+T
-40°C to +125°C 6 µDFN-6
LO
MAX6899PALT+T
-40°C to +125°C 6 µDFN-6
LP
Note: The package code for these devices is L611-1.
+Denotes lead-free package.
Pin Configurations
TOP VIEW
Applications
Automotive
PINPACKAGE
VCC
CDELAY
OUT
6
5
4
MAX6895
MAX6897
MAX6899
1
2
3
ENABLE
(ENABLE)
GND
IN
µDFN
( ) FOR MAX6899 ONLY.
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
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.
1
MAX6895–MAX6899
General Description
MAX6895–MAX6899
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
ABSOLUTE MAXIMUM RATINGS
VCC, ENABLE, ENABLE, IN......................................-0.3V to +6V
OUT, OUT (push-pull) ................................-0.3V to (VCC + 0.3V)
OUT, OUT (open-drain)..........................................-0.3V to +30V
CDELAY......................................................-0.3V to (VCC + 0.3V)
Output Current (all pins) ...................................................±20mA
Continuous Power Dissipation (TA = +70°C)
6-Pin µDFN (derate 2.1mW/oC above +70°C)...........167.7mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(VCC = 1.5V to 5.5V, TA = -40°C to +125°C, unless otherwise specified. Typical values are at VCC = 3.3V and TA = +25°C, unless
otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY
Operating Voltage Range
Undervoltage Lockout (Note 2)
VCC Supply Current
VCC
UVLO
VCC falling
ICC
VCC = 3.3V, no load
VTH
VIN rising, 1.5V < VCC < 5.5V
1.5
5.5
V
1.20
1.35
V
10
20
µA
0.5
0.509
V
IN
Threshold Voltage
Hysteresis
Input Current (Note 3)
VHYST
IIN
0.491
VIN falling
5
VIN = 0V or VCC
-15
200
CDELAY rising
0.95
130
mV
+15
nA
250
300
nA
1.00
1.05
V
500
Ω
0.4
V
CDELAY
Delay Charge Current
Delay Threshold
CDELAY Pulldown Resistance
ICD
VTCD
RCDELAY
ENABLE/ENABLE
Input Low Voltage
VIL
Input High Voltage
VIH
Input Leakage Current
2
ILEAK
1.4
ENABLE, ENABLE = VCC or GND
-100
_______________________________________________________________________________________
V
+100
nA
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
(VCC = 1.5V to 5.5V, TA = -40°C to +125°C, unless otherwise specified. Typical values are at VCC = 3.3V and TA = +25°C, unless
otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUT/OUT
Output Low Voltage (Open-Drain
or Push-Pull)
Output High Voltage (Push-Pull)
Output Open-Drain Leakage
Current
VOL
VCC ≥ 1.2V, ISINK = 90µA,
MAX6895/MAX6897/MAX6899 only
0.3
VCC ≥ 2.25V, ISINK = 0.5mA
0.3
VCC ≥ 4.5V, ISINK = 1mA
0.4
VCC ≥ 2.25V, ISOURCE = 500µA
0.8 x
VCC
VCC ≥ 4.5V, ISOURCE = 800µA
0.8 x
VCC
VOH
ILKG
V
V
Output high impedance, VOUT = 28V
1
µA
TIMING
IN to OUT/OUT Propagation
Delay
tDELAY
VIN rising
tDL
VIN falling
CCDELAY = 0
40
µs
CCDELAY = 0.047µF
190
ms
16
µs
2
ms
Startup Delay (Note 4)
ENABLE/ENABLE Minimum Input
Pulse Width
tPW
1
ENABLE/ENABLE Glitch
Rejection
ENABLE/ENABLE to OUT/OUT
Delay
tOFF
tPROPP
ENABLE/ENABLE to OUT/OUT
Delay
tPROPA
From device enabled to device disabled
From device disabled to device enabled
(P version)
From device disabled CCDELAY = 0
to device enabled
CCDELAY = 0.047µF
(A version)
µs
100
ns
150
ns
150
ns
20
µs
190
ms
Note 1: All devices are production tested at TA = +25°C. Limits over temperature are guaranteed by design.
Note 2: When VCC falls below the UVLO threshold, the outputs will deassert (OUT goes low, OUT goes high). When VCC falls below
1.2V, the output state cannot be determined.
Note 3: Guaranteed by design.
Note 4: During the initial power-up, VCC must exceed 1.5V for at least 2ms before the output is guaranteed to be in the correct state.
_______________________________________________________________________________________
3
MAX6895–MAX6899
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(VCC = 3.3V and TA = +25°C, unless otherwise noted.)
VCC = 5V
0.5008
0.5006
0.5004
VTH (V)
12
VCC = 3V
10
8
MAX6895 toc03
16
0.5010
MAX6895 toc02
18
14
0.5002
0.5000
0.4998
VCC = 1.5V
6
0.4996
4
0.4994
2
0.4992
0
0.4990
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
VCC (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
OUT DELAY
vs. CCDELAY
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
4000
VCC = 1.5V
1.2
3500
VCC = 3V
2500
2000
VCC = 5V
4.5
4.0
3.5
VCC = 5V
0.9
VOH (V)
VOL (V)
3000
5.0
MAX6895 toc05
1.5
MAX6895 toc04
4500
VCC = 3V
3.0
2.5
2.0
0.6
1500
VCC = 1.5V
1.5
1000
1.0
0.3
500
0.5
0
0
0
0 100 200 300 400 500 600 700 800 900 1000
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
2
4
6
10 12 14 16 18 20
8
CCDELAY (nF)
ISINK (mA)
ISOURCE (mA)
MAXIMUM TRANSIENT DURATION
vs. INPUT OVERDRIVE
ENABLE TURN-ON/OFF (MAX6896P)
ENABLE TURN-ON/OFF DELAY
(MAX6895A)
MAX6895 toc08
MAX6895 toc09
MAX6895 toc07
600
500
400
OUT
2V/div
OUT
2V/div
ENABLE
2V/div
ENABLE
2V/div
300
RESET
OCCURS
200
100
0
0
10 20 30 40 50 60 70 80 90 100
100ns/div
40µs/div
VOVERDRIVE (mV)
4
MAX6895 toc06
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
5000
tDELAY (ms)
IN THRESHOLD
vs. TEMPERATURE
20
MAX6895 toc01
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SUPPLY CURRENT
vs. TEMPERATURE
ICC (µA)
ICC (µA)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAXIMUM TRANSIENT DURATION (µs)
MAX6895–MAX6899
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
_______________________________________________________________________________________
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
PIN
MAX6895/ MAX6896/
MAX6897 MAX6898
1
—
MAX6899
—
NAME
FUNCTION
ENABLE
Active-High Logic-Enable Input. Drive ENABLE low to immediately deassert the
output to its false state (OUT = low or OUT = high) independent of VIN. With VIN
above VTH, drive ENABLE high to assert the output to its true state (OUT = high
or OUT = low) after the adjustable delay period (MAX689_A) or a 150ns
propagation delay (MAX689_P).
Active-Low Logic-Enable Input. Drive ENABLE high to immediately deassert the
output to its false state (OUT = low or OUT = high) independent of VIN. With VIN
above VTH, drive ENABLE low to assert the output to its true state (OUT = high or
OUT = low) after the adjustable delay period (MAX689_A) or a 150ns
propagation delay (MAX689_P).
—
1
1
ENABLE
2
2
2
GND
3
3
3
IN
High-Impedance Monitor Input. Connect IN to an external resistive divider to set
the desired monitored threshold. The output changes state when VIN rises above
0.5V and when VIN falls below 0.495V.
OUT
Active-High Sequencer/Monitor Output, Push-Pull (MAX6895/MAX6899) or OpenDrain (MAX6897). OUT is asserted to its true state (OUT = high) when VIN is
above VTH and the enable input is in its true state (ENABLE = high or ENABLE =
low) for the capacitor-adjusted delay period. OUT is deasserted to its false state
(OUT = low) immediately after VIN drops below VTH - 5mV or the enable input is
in its false state (ENABLE = low or ENABLE = high). The open-drain version
requires an external pullup resistor.
OUT
Active-Low Sequencer/Monitor Output, Push-Pull (MAX6896) or Open-Drain
(MAX6898). OUT is asserted to its true state (OUT = low) when VIN is above VTH
and the enable input is in its true state (ENABLE = high or ENABLE = low) for the
CDELAY adjusted timeout period. OUT is deasserted to its false state (OUT =
high) immediately after VIN drops below VTH - 5mV or the enable input is in its
false state (ENABLE = low or ENABLE = high). The open-drain version requires
an external pullup resistor.
4
—
—
4
4
—
5
5
5
CDELAY
6
6
6
VCC
Ground
Capacitor-Adjustable Delay. Connect an external capacitor (CCDELAY) from
CDELAY to GND to set the IN to OUT (and ENABLE to OUT or ENABLE to OUT
6
for A version devices) delay period. tDELAY = (CCDELAY x 4.0 x 10 ) + 40µs.
There is a fixed short delay (40µs, typ) for the output deasserting when VIN falls
below VTH.
Supply Voltage Input. Connect a 1.5V to 5.5V supply to VCC to power the device.
For noisy systems, bypass with a 0.1µF ceramic capacitor to GND.
_______________________________________________________________________________________
5
MAX6895–MAX6899
Pin Description
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
MAX6895–MAX6899
Table 1. MAX6895/MAX6897 Output
ENABLE (MAX6895)
ENABLE (MAX6899)
VCC
IN
LOGIC
0.5V
IN
ENABLE
VIN < VTH
Low
Low
OUT
VIN < VTH
High
Low
VIN > VTH
Low
Low
VIN > VTH
High
OUT = VCC (MAX6895)
OUT
250nA
OUT = high impedance
(MAX6897)
Table 2. MAX6896/MAX6898 Output
1.0V
ENABLE
IN
MAX6895
MAX6899
OUT
OUT = VCC (MAX6896)
VIN < VTH
Low
VIN < VTH
High
VIN > VTH
Low
OUT = high impedance
(MAX6898)
OUT = VCC (MAX6896)
CDELAY
GND
Figure 1. MAX6895/MAX6899 Functional Diagram
OUT = high impedance
(MAX6898)
Low
OUT = VCC (MAX6896)
Detailed Description
The MAX6895–MAX6899 is a family of ultra-small, lowpower, sequencing/supervisory circuits. These devices
provide adjustable voltage monitoring for inputs down to
0.5V. They are ideal for use in power-supply sequencing, reset sequencing, and power-switching applications. Multiple devices can be cascaded for complex
sequencing applications.
Voltage monitoring is performed through a high-impedance input (IN) with an internally fixed 0.5V threshold.
When the voltage at IN falls below 0.5V or when the
enable input is deasserted (ENABLE = low or ENABLE =
high), the output deasserts (OUT goes low or OUT goes
high). When VIN rises above 0.5V and the enable input is
asserted (ENABLE = high or ENABLE = low), the output
asserts (OUT goes high or OUT goes low) after a capacitor-programmable time delay.
With VIN above 0.5V, the enable input can be used to
turn the output on or off. After the enable input is asserted, the output turns on with a capacitor-programmable
delay period (A version) or with a 150ns propagation
delay (P version). Tables 1, 2, and 3 detail the output
state depending on the various input and enable conditions.
6
VIN > VTH
High
OUT = high impedance
(MAX6898)
Table 3. MAX6899 Output
IN
ENABLE
VIN < VTH
Low
Low
VIN < VTH
High
Low
VIN > VTH
Low
High
VIN > VTH
High
Low
OUT
Supply Input (VCC)
The device operates with a VCC supply voltage from
1.5V to 5.5V. To maintain a 1.8% accurate threshold,
VCC must be above 1.5V. When VCC falls below the
UVLO threshold, the output deasserts. When VCC falls
below 1.2V the output state cannot be determined. For
noisy systems, connect a 0.1µF ceramic capacitor from
VCC to GND as close to the device as possible. For the
push-pull active-high output option, a 100kΩ external
pulldown resistor to ground ensures the correct logic
state for VCC down to 0.
_______________________________________________________________________________________
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
Adjustable Delay (CDELAY)
When VIN rises above VTH with ENABLE high (ENABLE
low), the internal 250nA current source begins charging
an external capacitor connected from CDELAY to GND.
When the voltage at CDELAY reaches 1V, the output
asserts (OUT goes high or OUT goes low). When the
output asserts, CCDELAY is immediately discharged.
Adjust the delay (tDELAY) from when VIN rises above
VTH (with ENABLE high or ENABLE low) to OUT going
high (OUT going low) according to the equation:
tDELAY = CCDELAY x 4.0 x 10-6 + 40µs
where CCDELAY is the external capacitor from CDELAY
to GND.
For adjustable delay devices (A version), when VIN >
0.5V and ENABLE goes from low to high (ENABLE
goes from high to low) the output asserts after a tDELAY
period. For nonadjustable delay devices (P version)
there is a 1µs propagation delay from when the enable
input is asserted to when the output asserts. Figures 2
through 5 show the timing diagrams for the adjustable
and fixed delay versions, respectively.
VCC
VUVLO
IN
VTH
VTH
t < tPROPA
ENABLE
OUT
tPROPA
tPROPA
tDELAY
tDL
tOFF
Figure 2. MAX6895A/MAX6897A Timing Diagram
_______________________________________________________________________________________
7
MAX6895–MAX6899
Monitor Input (IN)
Connect the center point of a resistive divider to IN to
monitor external voltages (see R1 and R2 of the Typical
Operating Circuit). IN has a rising threshold of VTH =
0.5V and a falling threshold of 0.495V (5mV hysteresis).
When VIN rises above VTH and ENABLE is high (or
ENABLE is low) OUT goes high (OUT goes low) after
the programmed tDELAY period. When VIN falls below
0.495V, OUT goes low (OUT goes high) after a 16µs
delay. IN has a maximum input current of 15nA so
large-value resistors are permitted without adding significant error to the resistive divider.
MAX6895–MAX6899
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
VCC
VUVLO
IN
t < tPROPA
ENABLE
OUT
tPROPA
tPROPA
tDELAY
tDL
tOFF
Figure 3. MAX6896A/MAX6898A Timing Diagram
VCC
VUVLO
IN
t > tPW
ENABLE
OUT
tDELAY
tPROPP
tDL
tOFF
tPROPP
Figure 4. MAX6895P/MAX6897P Timing Diagram
8
_______________________________________________________________________________________
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
MAX6895–MAX6899
VCC
VUVLO
IN
t > tPW
ENABLE
OUT
tDELAY
tPROPP
tDL
tOFF
tPROPP
Figure 5. MAX6896P/MAX6898P Timing Diagram
VCC
VUVLO
IN
VTH
VTH
t < tPROPA
ENABLE
OUT
tPROPA
tPROPA
tDELAY
tDL
tOFF
Figure 6. MAX6899A Timing Diagram
_______________________________________________________________________________________
9
MAX6895–MAX6899
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
VCC
VUVLO
IN
t > tPW
ENABLE
OUT
tDELAY
tPROPP
tDL
tOFF
tPROPP
Figure 7. MAX6899P Timing Diagram
Enable Input (ENABLE or ENABLE)
The MAX6895/MAX6897 offer an active-high enable
input (ENABLE), while the MAX6896/MAX6898/MAX6899
offer an active-low enable input (ENABLE). With VIN above
VTH, drive ENABLE high (ENABLE low) to force OUT high
(OUT low) after the adjustable delay time (A versions). For
P version devices, when VIN > 0.5V and enable is asserted, the output asserts after typically 150ns.
The enable input has logic-high and logic-low voltage
thresholds of 1.4V and 0.4V, respectively. For both versions, when VIN > 0.5V, drive ENABLE low (ENABLE
high) to force OUT low (OUT high) within 150ns typ.
Output (OUT or OUT)
The MAX6895/MAX6899 offer an active-high, push-pull
output (OUT), and the MAX6896 offers an active-low
push-pull output (OUT). The MAX6897 offers an activehigh open-drain output (OUT), and the MAX6898 offers
an active-low open-drain output (OUT).
Push-pull output devices are referenced to VCC. Opendrain outputs can be pulled up to 28V.
10
Applications Information
Input Threshold
The MAX6895–MAX6899 monitor the voltage on IN with
an external resistive divider (see R1 and R2 in the
Typical Operating Circuit). Connect R1 and R2 as close
to IN as possible. R1 and R2 can have very high values
to minimize current consumption due to low IN leakage
currents (±15nA max). Set R2 to some conveniently
high value (1MΩ, for example) and calculate R1 based
on the desired monitored voltage using the following
formula:
⎡V
⎤
R1 = R2 × ⎢ MONITOR − 1⎥
VIN
⎣
⎦
where VMONITOR is the desired monitored voltage and
VIN is the detector input threshold (0.5V).
______________________________________________________________________________________
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
The exact value of the pullup resistors for the opendrain outputs is not critical, but some consideration
should be made to ensure the proper logic levels when
the device is sinking current. For example, if VCC =
2.25V and the pullup voltage is 28V, you would try to
keep the sink current less than 0.5mA as shown in the
Electrical Characteristics table. As a result, the pullup
resistor should be greater than 56kΩ. For a 12V pullup,
the resistor should be larger than 24kΩ. It should be
noted that the ability to sink current is dependent on the
VCC supply voltage.
Typical Application Circuits
Figures 8, 9, 10 show typical applications for the
MAX6895–MAX6899. Figure 8 shows the MAX6895
used with a p-channel MOSFET in an overvoltage protection circuit. Figure 9 shows the MAX6895 in a lowvoltage sequencing application using an n-channel
MOSFET. Figure 10 shows the MAX6895 used in a multiple-output sequencing application.
Using an n-Channel Device for Sequencing
In higher power applications, using an n-channel device
reduces the loss across the MOSFETs as it offers a
lower drain-to-source on-resistance. However, an nchannel MOSFET requires a sufficient V GS voltage to
fully enhance it for a low RDS_ON. The application in
Figure 9 shows the MAX6895 in a switch sequencing
application using an n-channel MOSFET.
Similarly, if a higher voltage is present in the system, the
open-drain version can be used in the same manner.
5V BUS 1.2V INPUT
3.3V ALWAYS ON
N
P
0 TO 28V
1.2V OUTPUT
MONITORED
3.3V
ENABLE
VCC
ENABLE
RPULLUP
VCC
R1
R1
OUT
OUT
MAX6895
MAX6897
IN
IN
CDELAY
CDELAY
R2
R2
GND
Figure 8. Overvoltage Protection
GND
CCDELAY
Figure 9. Low-Voltage Sequencing Using an n-Channel MOSFET
______________________________________________________________________________________
11
MAX6895–MAX6899
Pullup Resistor Values
(MAX6897/MAX6898)
MAX6895–MAX6899
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
2.5V
3.3V
5V BUS
DC-DC
1.2V
1.8V
DC-DC
DC-DC
DC-DC
EN
EN
EN
EN
SYSTEM
ENABLE
ENABLE
IN
VCC
ENABLE
IN
MAX6895
MAX6895
OUT
GND
VCC
ENABLE
IN
OUT
GND
CCDELAY
VCC
MAX6895
IN
OUT
GND
CCDELAY
VCC
ENABLE
MAX6895
OUT
GND
CCDELAY
CCDELAY
Figure 10. Multiple-Output Sequencing
Selector Guide
PART
ENABLE INPUT
OUTPUT
INPUT (IN) DELAY
ENABLE DELAY
MAX6895AALT
Active-High
Active-High, Push-Pull
Capacitor Adjustable
Capacitor Adjustable
MAX6895PALT
Active-High
Active-High, Push-Pull
Capacitor Adjustable
150ns Delay
MAX6896AALT
Active-Low
Active-Low, Push-Pull
Capacitor Adjustable
Capacitor Adjustable
MAX6896PALT
Active-Low
Active-Low, Push-Pull
Capacitor Adjustable
150ns Delay
MAX6897AALT
Active-High
Active-High, Open-Drain
Capacitor Adjustable
Capacitor Adjustable
MAX6897PALT
Active-High
Active-High, Open-Drain
Capacitor Adjustable
150ns Delay
MAX6898AALT
Active-Low
Active-Low, Open-Drain
Capacitor Adjustable
Capacitor Adjustable
MAX6898PALT
Active-Low
Active-Low, Open-Drain
Capacitor Adjustable
150ns Delay
MAX6899AALT
Active-Low
Active-High, Push-Pull
Capacitor Adjustable
Capacitor Adjustable
MAX6899PALT
Active-Low
Active-High, Push-Pull
Capacitor Adjustable
150ns Delay
12
______________________________________________________________________________________
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
Pin Configurations (continued)
1.5V TO 5.5V
TOP VIEW
0.1µF
ENABLE
VCC
VCC
CDELAY
OUT
6
5
4
R1
OUT
MAX6895
MAX6896
MAX6898
IN
1
CDELAY
2
3
GND
IN
R2
GND
CCDELAY
ENABLE
µDFN
Chip Information
PROCESS: BiCMOS
______________________________________________________________________________________
13
MAX6895–MAX6899
Typical Operating Circuit
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
6L UDFN.EPS
MAX6895–MAX6899
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
Revision History
Changes made at Rev 3: 1, 3, 5, 6, 9, 10, 11, 13, new
part number added (all pages)
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.
14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2006 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
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