MAX16072RS25D0+T [MAXIM]
Power Supply Support Circuit, BICMOS, PBGA4,;
| 型号： | MAX16072RS25D0+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Power Supply Support Circuit, BICMOS, PBGA4, PC 信息通信管理 |
| 文件： | 总8页 (文件大小：804K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-5112; Rev 0; 1/10
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
General Description
Features
The MAX16072/MAX16073/MAX16074 ultra-small, ultra-
low-power, microprocessor (µP) supervisory circuits
feature a precision band-gap reference, comparator,
and internally trimmed resistors that set the threshold
voltage. Designed to monitor the system supply voltage
and assert an output during power-up, power-down,
and brownout conditions, these devices provide excel-
lent circuit reliability and low cost by eliminating external
components and adjustments when monitoring nominal
system voltage from 1.8V to 3.6V.
S Ultra-Low, 0.7µA Supply Current
S Ultra-Small (1mm x 1mm), 4-Bump UCSP
S 20µs, 8ms, 34ms, and 140ms Reset Timeout
Options Available
S Factory-Trimmed Reset Thresholds Available
from 1.58V to 3.08V in Approximately 100mV
Increments
S Q2.5% Threshold Accuracy Over Temperature
S Manual Reset Input
The MAX16072 has a push-pull, active-low reset output,
the MAX16073 has a push-pull, active-high reset output,
and the MAX16074 has an open-drain active-low reset
output. The devices are designed to ignore fast tran-
S Guaranteed Reset Valid to V
= 1.0V
CC
S Immune to Short V
Transient
CC
sients on V . The devices also include a manual reset
CC
input (MR).
Ordering Information
The MAX16072/MAX16073/MAX16074 are available in a
1mm x 1mm, space-saving, 4-bump, chip-scale pack-
age (UCSPTM).
PIN-
PART
RESET OUTPUT TYPE
PACKAGE
MAX16072RS_ _D_+ Push-Pull, Active-Low
MAX16073RS_ _D_+ Push-Pull, Active-High
4 UCSP
Applications
Portable/Battery-Powered Equipment
4 UCSP
MAX16074RS_ _D_+ Open-Drain, Active-Low 4 UCSP
Cell Phones
Note: All devices are specified over the -40NC to +85NC operat-
ing temperature range.
PDAs
MP3 Players
Insert the desired suffix numbers (from Table 1) into the blanks
“RS_ _D” to indicate the reset trip threshold. Insert the desired
suffix number (from Table 2) into the blank ”D_+” to indicate the
reset timeout. Minimum order quantity may apply.
Digital Cameras
Typical Operating Circuit
+Denotes a lead(Pb)-free/RoHS-compliant package.
V
CC
V
V
CC
CC
µP
RESET
INPUT
MAX16072
MAX16073
MAX16074
MR
(RESET)/
RESET
GND
GND
( ) FOR THE MAX16073 ONLY
UCSP is a trademark of Maxim Integrated Products, Inc.
_______________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND.)
Operating Temperature Range.......................... -40NC to +85NC
Storage Temperature Range............................ -65NC to +150NC
Junction Temperature .....................................................+150NC
Soldering Temperature (reflow) ......................................+260NC
V , MR ..................................................................-0.3V to +6V
CC
RESET, RESET Push-Pull ......................... -0.3V to (V
RESET Open-Drain..................................................-0.3V to +6V
Output Current (all pins) ................................................. Q20mA
+ 0.3V)
CC
Continuous Power Dissipation (T = +70NC)
A
4-Bump UCSP (derate 3mW/NC above +70NC) ..........239mW
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
(V
CC
= 1.5V to 2.75V, T = -40NC to +85NC, unless otherwise noted. Typical values are at T = +25NC and V
= 3.6V.) (Note 1)
A
A
CC
PARAMETER
SYMBOL
CONDITIONS
= 0NC to +85NC
MIN
1.0
TYP
MAX
5.5
UNITS
T
T
A
A
Operating Voltage Range
Supply Current
V
CC
V
= -40NC to +85NC
1.2
5.5
V
V
= 1.8V for V P1.66V
0.7
1.0
1.2
CC
CC
TH
I
FA
CC
= 3.6V, no load
1.5
V
1.5%
-
V
1.5%
+
TH
TH
V
CC
falling, T = +25NC
V
TH
A
Detector Threshold
V
TH
See Table 1
V
V
falling, T = -40NC to
V
2.5%
-
V
2.5%
+
TH
CC
A
TH
V
TH
+85NC
Detector Threshold Hysteresis
Detector Threshold Tempco
MR INPUT
V
V
rising, V P1.66V (Note 2)
6.3
40
mV
HYST
CC
TH
DV /NC
(Note 2)
ppm/NC
TH
0.7 x
V
IH
V
CC
V
kI
V
MR Input High Voltage
0.7 x
V
IL
V
CC
25
50
75
MR Pullup Resistance
RESET/RESET OUTPUT (Note 3)
V
V
R1.2V, I
= 100FA
0.4
0.3
CC
SINK
Output-Voltage Low
Output-Voltage High
V
OL
R1.65V, I
= 1mA
CC
SINK
0.8 x
V
R1.65V, I
= 500FA
= 50FA
CC
CC
SOURCE
V
CC
V
OH
V
0.8 x
V
R1.2V, I
SOURCE
V
CC
Open-Drain RESET Output
Leakage Current
0.1
FA
RESET not asserted (Note 2)
TIMING
t
(Note 2)
(Note 2)
MR falling
MR rising
0.8
Fs
ns
Fs
ns
Fs
MR Minimum Pulse Width
MR Glitch Rejection
MPW
t
100
1
EGR
t
2
OFF
MR to RESET/RESET
Propagation Delay
t
200
20
400
90
ON
V
CC
to Reset Delay
t
V = (V + 100mV) to (V -100mV)
CC TH TH
DL
2
______________________________________________________________________________________
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 1.5V to 2.75V, T = -40NC to +85NC, unless otherwise noted. Typical values are at T = +25NC and V
= 3.6V.) (Note 1)
A
A
CC
PARAMETER
SYMBOL
CONDITIONS
MAX1607_RSD0+
MIN
20
TYP
MAX
120
17
UNITS
Fs
80
13
V
CC
rising, V
CC
MAX1607_RSD1+
MAX1607_RSD2+
MAX1607_RSD3+
8
ms
Reset Active Timeout Period
t
= (V - 100mV)
TH
to (V + 100mV)
RP
34
52
69
ms
TH
140
210
280
ms
Note 1: Production testing done at T = +25NC only. Overtemperature limits are guaranteed by design and are not production
A
tested.
Note 2: Guaranteed by design.
Note 3: Reset is guaranteed down to V
= 1.0V.
CC
Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
vs. TEMPERATURE
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE
5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.3
0.2
0.1
0
4
3
2
1
0
V
= 5V
CC
V
CC
FALLING
V
= 3V
CC
-0.1
-0.2
-0.3
V
RISING
60
CC
V
= 1.8V
CC
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
-40
-15
10
35
60
85
-40
-15
10
35
85
TEMPERATURE (°C)
TEMPERATURE (°C)
_______________________________________________________________________________________
3
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
Typical Operating Characteristics (continued)
(T = +25°C, unless otherwise noted.)
A
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
MAXIMUM TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
2.00
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
50
45
40
35
30
25
20
15
10
5
RESET OCCURS ABOVE LINES
1.75
1.50
1.25
1.00
V
= 5V
CC
V
= 3V
CC
V
= 1.63V
RST
V
= 5V
CC
V
= 1.8V
CC
0.75
0.50
0.25
0
V
= 3V
CC
V
= 1.8V
4
CC
2
V
= 3.08V
RST
0
0
6
8
I
10 12 14 16 18 20
(mA)
0
2
4
6
8
10 12 14 16 18 20
(mA)
1
10
100
1000
I
RESET THRESHOLD OVERDRIVE (mV)
SINK
SOURCE
MR TO RESET DELAY (t
)
V
CC
TO RESET PROPAGATION DELAY
vs. TEMPERATURE
V
CC
TO RESET PROPAGATION DELAY
vs. TEMPERATURE
ON
vs. V
CC
150
120
90
60
30
0
80
60
40
20
0
120
100
80
60
40
20
0
V
= OVERDRIVE VOLTAGE
V
= OVERDRIVE VOLTAGE
= 10mV
OD
OD
V
OD
V
OD
= 100mV
V
OD
= 100mV
V
= 200mV
OD
V
OD
= 20mV
V
= 10mV
V
OD
= 20mV
10
OD
V
= 200mV
35
OD
MR RISING
2.475
V
FALLING
60
V
RISING
CC
CC
1.650
1.925
2.200
2.750
-40
-15
35
85
-40
-15
10
60
85
V
(V)
TEMPERATURE (°C)
TEMPERATURE (°C)
CC
MR TO RESET DELAY (t
)
OFF
vs. V
MR TURN-ON
MR TURN-OFF
CC
MAX16072 toc11
MAX16072 toc12
1.25
1.00
0.75
0.50
0.25
0
MR
1V/div
MR
1V/div
RESET
1V/div
RESET
1V/div
MR FALLING
2.475 2.750
1.650
1.925
2.200
(V)
100ns/div
200ns/div
V
CC
4
______________________________________________________________________________________
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
Bump Configuration
MAX16072
TOP VIEW
(BUMP SIDE DOWN)
MAX16073
MAX16074
1
2
+
V
GND
CC
A
B
RESET/
(RESET)
MR
UCSP
( ) FOR THE MAX16073 ONLY
Bump Description
BUMP
NAME
FUNCTION
MAX16072 MAX16073 MAX16074
A1
A1
A1
GND
Ground
Active-Low Push-Pull Reset Output. RESET changes from high to
low when V drops below the detector threshold (V ) or MR is
CC
TH
B1
—
—
RESET
pulled low. RESET remains low for the reset timeout period after V
CC
exceeds V and MR is high. When MR is low, RESET is low.
TH
Active-High Push-Pull Reset Output. RESET changes from low to
high when V
drops below the detector threshold (V ) or MR is
TH
CC
—
—
B1
—
—
RESET
pulled low. RESET remains high for the reset timeout period after V
CC
exceeds V and MR is high. When MR is low, RESET is high.
TH
Active-Low Open-Drain Reset Output. RESET changes from high-
impedance to active-low when V
old (V ) or MR is pulled low. RESET remains low for the reset timeout
TH
drops below the detector thresh-
CC
B1
RESET
period after V
exceeds the reset threshold and MR is high. When
CC
MR is low, RESET is low.
A2
B2
A2
B2
A2
B2
V
Supply Voltage and Input for the Reset Threshold Monitor
CC
Active-Low Manual-Reset Input. Drive low to force a reset. Reset
remains active as long as MR is low and for the reset timeout period (if
applicable) after MR is driven high. MR has an internal pullup resistor
MR
connected to V
and may be left unconnected if not used.
CC,
_______________________________________________________________________________________
5
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
Functional Diagrams
V
V
CC
CC
RESET
(RESET)
RESET
RESET
RESET
TIMEOUT
TIMEOUT
MAX16072
MAX16073
MAX16074
MR
MR
GND
GND
( ) MAX16073 ONLY
output. The devices are designed to ignore fast tran-
Detailed Description
sients on V . The devices also include a manual reset
CC
The MAX16072/MAX16073/MAX16074 ultra-small, ultra-
low-power, µP supervisory circuits feature a precision
band-gap reference, comparator, and internally trimmed
resistors that set specified trip threshold voltages.
Designed to monitor the system supply voltage and an
output during power-up, power-down, and brownout
conditions, these devices provide excellent circuit reli-
ability and low cost by eliminating external components
and adjustments when monitoring nominal system volt-
age from 1.8V to 3.6V.
input (MR). When MR is low, reset is asserted. When MR
is high and V
is above the detector threshold (V ),
CC
TH
reset is not asserted.
Supply and Monitored Input (V
)
CC
The MAX16072/MAX16073/MAX16074 operate with a
V
CC
supply voltage from 1.2V to 2.75V. V has a rising
CC
threshold of V + V
and a falling threshold of V
.
TH
TH
HYST
When V
rises above V
+ V
and MR is high,
CC
TH
HYST
RESET goes high (RESET goes low) after the reset time-
out period (t ). See Figure 1.
RP
The MAX16072 has a push-pull active-low reset output,
the MAX16073 has a push-pull active-high reset output,
and the MAX16074 has an open-drain active-low reset
When V
falls below V , RESET goes low (RESET
TH
CC
goes high) after a fixed delay (t ).
RD
V
V
+ V
TH HYST
TH
V
CC
t
MPW
t < t
EGR
t < t
MPW
MR
RESET
t
t
DL
t
RP
t
t
ON
ON
OFF
Figure 1. MAX16072/MAX16073/MAX16074 Timing Diagram
6
______________________________________________________________________________________
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
Manual Reset Input (MR)
Many FP-based products require manual-reset capabil-
ity, allowing the operator, a test technician, or external
logic circuit to initiate a reset. A logic-low on MR asserts
reset. Reset remains asserted while MR is low, and for
Table 1. Factory Trimmed Reset
Thresholds
RESET TRIP THRESHOLD (V)
THRESHOLD
SUFFIX
TA = +25NC
TYP
1.58
1.63
1.67
1.80
1.90
2.00
2.10
2.20
2.32
2.40
2.50
2.63
2.70
2.80
2.93
3.00
3.08
TA = -40NC to +85NC
the reset active timeout period (t ) or delay (t ) after
MIN
1.54
MAX
1.61
1.66
1.71
1.85
1.95
2.05
2.15
2.25
2.375
2.46
2.562
2.69
2.768
2.87
3.0
RP
ON
MR returns high. This input has an internal 50kI pullup
resistor, so it can be left unconnected if it is not used.
MR can be driven with TTL or CMOS logic levels, or
with open-drain/collector outputs. For manual operation,
connect a normally open momentary switch from MR to
GND; external debouncing circuitry is not required. If MR
is driven from long cables or if the device is used in a
noisy environment, connect a 0.1FF capacitor from MR to
ground to provide additional noise immunity.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1.60
1.62
1.76
1.85
1.95
2.05
2.145
2.262
2.34
Applications Information
2.437
2.564
2.633
2.63
Interfacing to µP with
Bidirectional Reset Pins
Since RESET on the MAX16074 is open-drain, this
device interfaces easily with FPs that have bidirectional
reset pins. Connecting the FP supervisor’s RESET output
directly to the FP’s RESET pin with a single pullup resis-
tor allows either device to assert reset (Figure 2).
2.857
2.925
3.003
3.075
3.15
Negative-Going V
Transients
CC
The MAX16072/MAX16073/MAX16074 family of devic-
es is relatively immune to short-duration, negative-
Table 2. Reset Timeout Periods
going V
transients (glitches). The Typical Operating
CC
RESET TIMEOUT PERIODS
Characteristics show the Maximum Transient Duration
vs. Reset Threshold Overdrive graph, for which reset
pulses are not generated. The graph shows the maxi-
SUFFIX
MIN
20
TYP
80
MAX
120
17
UNITS
Fs
0
1
2
3
mum pulse width that a negative-going V
transient
8
13
ms
CC
may typically have when issuing a reset signal. As the
amplitude of the transient increases, the maximum allow-
able pulse width decreases.
34
52
69
ms
140
210
280
ms
V
CC
V
V
CC
CC
µP
MAX16074
MOTOROLA
68HCXX
RESET
INPUT
RESET
MR
GND
GND
Figure 2. Interfacing to µP with Bidirectional Reset Pins
_______________________________________________________________________________________
7
µP Supervisory Circuits in
4-Bump (1mm x 1mm) Chip-Scale Package
Chip Information
Package Information
PROCESS: BiCMOS
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
4 UCSP
R41C1-1
21-0242
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.
8
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2010 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
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