MB3793-37APF-XXXE1 [CYPRESS]
Power Supply Management Circuit,;
| 型号： | MB3793-37APF-XXXE1 |
| 厂家： | 
CYPRESS |
| 描述： | Power Supply Management Circuit, |
| 文件： | 总29页 (文件大小：529K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MB3793-37A
Power Voltage Monitoring IC with
Watchdog Timer Datasheet
The MB3793 is an integrated circuit to monitor power voltage; it incorporates a watchdog timer.
A reset signal is output when the power is cut or falls abruptly. When the power recovers normally after resetting, a power-on reset
signal is output to microprocessor units (MPUs). An internal watchdog timer with two inputs for system operation diagnosis can
provide a fall-safe function for various application systems.
The model number is MB3793-37A corresponding to the detected voltage. The model number and package code are as shown
below.
Model No.
Marking code
Detection voltage
MB3793-37A
3793AF
3.7 V
Features
Precise detection of power voltage fall: 2.5%
Detection voltage with hysteresis
Low power dispersion: ICC = 30 A (reference)
Internal dual-input watchdog timer
Watchdog-timer halt function (by inhibition pin)
Independently-set wacthdog and reset times
Two types of packages (SOP-8pin : 2 types)
Application
Arcade Amusement etc
Cypress Semiconductor Corporation
Document Number: 002-08517 Rev. *A
•
198 Champion Court
•
San Jose, CA 95134-1709
•
408-943-2600
Revised March 15, 2016
MB3793-37A
Contents
Operation Sequence .......................................................13
Typical Characteristics ..................................................16
Application Example ......................................................20
Supply voltage monitor and watchdog timer
(1-clock monitor) ............................................................20
Supply voltage monitor and watchdog timer stop ......21
Typical Application .........................................................22
Notes On Use ..................................................................23
Ordering Information ......................................................23
RoHS Compliance Information of
Lead (Pb) Free version ...................................................23
Marking Format (Lead Free version) ...........................24
Labeling Sample (Lead free version) ...........................25
MB3793-37APF-❏❏❏E1, MB3793-37APNF-❏❏❏E1
Recommended Conditions Of Moisture
Sensitivity Level .............................................................26
Package Dimensions ......................................................28
Major Changes ................................................................30
Pin Assignment ................................................................3
Pin Description .................................................................3
Block Diagram ..................................................................4
Block Description .............................................................5
Absolute Maximum Ratings ............................................6
Recommended Operating Conditions ............................6
Electrical Characteristics .................................................7
DC Characteristics ..............................................................7
AC Characteristics ..............................................................8
Diagram .............................................................................9
Basic operation (Positive clock pulse) ...............................9
Basic operation (Negative clock pulse) ...........................10
Single-clock input monitoring
(Positive clock pulse) ........................................................11
Inhibition operation (Positive clock pulse) ........................12
Clock pulse input supplementation
(Positive clock pulse) ........................................................13
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MB3793-37A
1. Pin Assignment
(Top view)
1
2
3
4
8
7
6
5
CK1
CK2
INH
VCC
RESET
CTW
CTP
GND
(FPT-8P-M01)
(FPT-8P-M02)
2. Pin Description
Pin no.
Symbol
RESET
CTW
Descriptions
Pin no.
Symbol
Descriptions
VCC
1
2
3
4
Outputs reset pin
5
Power supply pin
Watchdog timer monitor time setting pin
Power-on reset hold time setting pin
Ground pin
6
7
8
INH
CK2
CK1
Inhibit pin
CTP
Inputs clock 2 pin
Inputs clock 1 pin
GND
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MB3793-37A
3. Block Diagram
5
To VCC of all blocks
VCC
.
.
I1 = 3 μA
I2 = 30 μA
.
.
CTP
3
1
.
R1 =
.
494 kΩ
Logic circuit
RESET
Output circuit
INH
6
Comp.S
−
VS
Reference
voltage
generator
CTW
CK1
2
8
Watchdog
timer
+
Pulse generator 1
.
VREF = 1.24 V
.
.
R2 =
.
240 kΩ
Pulse generator 2
To GND of
all blocks
7
CK2
4
GND
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MB3793-37A
4. Block Description
1. Comp. S
Comp. S is a comparator with hysteresis to compare the reference voltage with a voltage (VS) that is the result of dividing the power
voltage (VCC) by resistors 1 and 2. When VS falls below 1.24 V, a reset signal is output.
This function enables the MB3793 to detect an abnomality within 1 s when the power is cut or falls abruptly.
2. Output circuit
The output circuit contains a RESET output control comparator that compares the voltage at the CTP pin to the threshold voltage to
release the RESET output if the CTP pin voltage exceeds the threshold value.
Since the reset (RESET) output buffer has CMOS organization, no pull-up resistor is needed.
3. Pulse generator
The pulse generator generates pulses when the voltage at the CK1 and CK2 clock pins changes to High from Low level (positive-edge
trigger) and exceeds the threshold voltage; it sends the clock signal to the watchdog timer.
4. Watchdog timer
The watchdog timer can monitor two clock pulses. Short-circuit the CK1 and CK2 clock pins to monitor a single clock pulse.
5. Inhibition pin
The inhibition (INH) pin forces the watchdog timer on/off. When this pin is High level, the watchdog timer is stopped.
6. Logic circuit
The logic circuit contains flip-flops.
Flip-flop RSFF1 controls the charging and discharging of the power-on reset hold time setting capacitor (CTP).
Flip-flop RSFF2 turns on/off the circuit that accelerates charging of the power-on reset hold time setting capacitor
(CTP) at a reset. The RSFF2 operates only at a reset; it does not operate at a power-on reset when the power is turned on.
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MB3793-37A
5. Absolute Maximum Ratings
Rating
Parameter
Symbol
Conditions
Unit
Min
Max
VCC
VCK1
VCK2
IINH
Power supply voltage*
—
—
—
—
–0.3
+7
V
CK1
CK2
INH
Input voltage*
–0.3
–10
+7
V
IOL
IOH
Reset output current
RESET
—
+10
mA
PD
Allowable loss
Ta +85C
—
200
mW
Storage temperature
Tstg
—
–55
+125
C
*: The power supply voltage is based on the ground voltage (0 V).
WARNING:
1. Semiconductor devices may be permanently damaged by application of stress (including, without limitation, voltage, current or
temperature) in excess of absolute maximum ratings.Do not exceed any of these ratings.
6. Recommended Operating Conditions
Value
Parameter
Symbol
Conditions
Unit
Min
Typ
Max
VCC
Power supply voltage
—
—
1.2
—
6.0
V
IOL
IOH
Reset (RESET) output current
–5
—
+5
mA
CTP
CTW
Ta
Power-on reset hold time setting capacity
—
—
—
0.001
0.001
–40
—
—
—
10
1
F
F
C
Watchdog-timer monitoring time setting
capacity*
Operating ambient temperature
+85
*: The watchdog timer monitor time range depends on the rating of the setting capacitor.
WARNING:
1. The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All
of the device's electrical characteristics are warranted when the device is operated under these conditions.
2. Any use of semiconductor devices will be under their recommended operating condition.
3. Operation under any conditions other than these conditions may adversely affect reliability of device and could result in device
failure.
4. No warranty is made with respect to any use, operating conditions or combinations not represented on this data sheet. If you
are considering application under any conditions other than listed herein, please contact sales representatives beforehand.
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MB3793-37A
7. Electrical Characteristics
7.1
DC Characteristics
(VCC = +5 V, Ta = +25C)
Value
Typ
30
Parameter
Symbol
Conditions
Unit
Max
Min
—
ICC1
VSL
Power supply current
After exit from reset
50
A
Ta = +25C
3.60
3.70
3.70
3.79
3.79
3.80
VCC falling
V
Ta = –40C to +85C
Ta = +25C
(3.55)*
3.69
(3.85)*
3.89
Detection voltage
VSH
VCC rising
VSH – VSL
V
Ta = –40C to +85C
(3.64)*
(3.94)*
Detection voltage hysteresis
difference
VSHYS
40
85
130
mV
VCIH
VCIL
VCHTS
VIIH
VIIL
CK rising
CK falling
(1.4)*
0.8
1.9
1.3
0.6
—
2.5
(1.8)*
(0.8)*
—
V
V
V
Clock-input threshold voltage
Clock-input hysteresis
—
—
—
(0.4)*
3.5
Inhibition-input voltage
V
—
0
0.8
IIH
VCK = 5 V
—
0
1.0
A
A
V
Input current
(CK1, CK2, INH)
IIL
VCK = 0 V
–1.0
4.5
0
—
VOH
VOL
IRESET = –5 mA
IRESET = +5 mA
4.75
0.12
—
Reset output voltage
—
0.4
V
Reset-output minimum power
voltage
VCCL
IRESET = +50 A
—
0.8
1.2
V
*: The values enclosed in parentheses ( ) are setting assurance values.
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MB3793-37A
7.2
AC Characteristics
(VCC = +5 V, Ta = +25C)
Value
Typ
130
—
Parameter
Symbol
Conditions
Unit
Max
Min
tPR
tPI
CTP = 0.1 F
Power-on reset hold time
80
180
—
ms
s
s
(110)*2
—
V
V
CC input pulse width
CC delay time
CTP = 0.1 F
CTP = 0.1 F
(100)*2
22.5
tPD
20
CTW = 0.01 F,
CTP = 0.1 F
tWD
Watchdog timer reset time
7.5
15
ms
tWR
tCKW
tCKT
CTP = 0.1 F
Watchdog timer reset time
Clock input pulse width
Clock input pulse cycle
5
500
20
—
10
—
—
—
15
—
ms
ns
s
ns
—
—
—
tr*1
tf*2
CL = 50 pF
Rising
Falling
500
Reset (RESET) output transition time*1
CL = 50 pF
—
—
500
ns
*1:The voltage range is 10% to 90% at testing the reset output transition time.
*2:The values enclosed in parentheses ( ) are setting assurance values.
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MB3793-37A
8. Diagram
8.1
Basic operation (Positive clock pulse)
VSH
VSL
VCC
tCKW
CK1
tCKT
CK2
INH
Vth
CTP
VH
VL
CTW
RESET
tPR
tWD
tPR
tWR
(1) (2) (3) (4)(5) (5)
(6) (7)
(8) (9)
(10)
(11)
(12)
(13)
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MB3793-37A
8.2
Basic operation (Negative clock pulse)
VSH
VSL
VCC
tCKW
CK1
tCKT
CK2
INH
Vth
CTP
VH
CTW
VL
RESET
tPR
tWD
tPR
tWR
(1) (2) (3) (4)(5) (5)
(6) (7)
(8) (9)
(10)
(11)
(12)
(13)
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MB3793-37A
8.3
Single-clock input monitoring (Positive clock pulse)
tCKW
CK1
CK2
CTP
tCKT
Vth
VH
VL
CTW
RESET
tWD
tWR
Note: The MB3793 can monitor only one clock.
The MB3793 checks the clock signal at every other input pulse. Therefore, set watchdog timer mon-
itor time tWD to the time that allows the MB3793 to monitor the period twice as long as the input
clock pulse.
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MB3793-37A
8.4
Inhibition operation (Positive clock pulse)
VSH
VSL
VCC
tCKW
CK1
CK2
INH
Vth
CTP
VH
CTW
VL
RESET
tPR
tWD
tPR
tWR
(1) (2) (3) (4)(5) (5)
(6) (7) (11) (8) (9)
(10)
(12)
(13)
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MB3793-37A
8.5
Clock pulse input supplementation (Positive clock pulse)
*1
CK1
*2
CK2
VH
CTW
VL
Note: The MB3793 watchdog timer monitors Clock1 (CK1) and Clock2 (CK2) pulses alternately.
When a CK2 pulse is detected after detecting a CK1 pulse, the monitoring time setting
capacity (CTW) switches to charging from discharging.
When two consecutive pulses occur on one side of this alternation before switching,
the second pulse is ignored.
In the above figure, pulse *1 and *2 are ignored.
9. Operation Sequence
1. Positive clock pulse input
See “1. Basic operation (positive clock pulse)” under “Diagram”
2. Negative clock pulse input
See “2. Basic operation (negative clock pulse)” under “Diagram”
The MB3793 operates in the same way whether it inputs positive or negative pulses.
3. Clock monitoring
To use the MB3793 while monitoring only one clock, connect clock pins CK1 and CK2.
Although the MB3793 operates basically in the same way as when monitoring two clocks, it monitors the clock signal at every other
input pulse.
See “3. Single-clock input monitoring (positive clock pulse)” under “Diagram”
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MB3793-37A
4. Description of Operations
The numbers given to the following items correspond to numbers (1) to (13) used in “Diagram”
(1) The MB3793 outputs a reset signal when the supply voltage (VCC) reaches about 0.8 V (VCCL
)
(2) If VCC reaches or exceeds the rise-time detected voltage VSH, the MB3793 starts charging the power-on reset hold time
setting capacitor CTP. At this time, the output remains in a reset state. The VSH value is about 3.79 V.
(3) When CTP has been charged for a certain period of time tPR (until the CTP pin voltage exceeds the threshold voltage (Vth)
after the start of charging), the MB3793 cancels the reset (setting the RESET pin to “H” level from “L” level).
The Vth value is about 3.6 V with VCC = 5.0 V
The power-on reset hold timer monitor time tPR is set with the following equation:
.
tPR (ms) = A CTP (F)
.
The value of A is about 1300 with VCC = 5.0 V. The MB3793 also starts charging the watchdog timer monitor time setting
capacitor (CTW).
(4) When the voltage at the watchdog timer monitor time setting pin CTW reaches the “H” level threshold voltage VH, the CTW
switches from the charge state to the discharge state.
The value of VH is always about 1.24 V regardless of the detected voltage.
(5) If the CK2 pin inputs a clock pulse (positive edge trigger) when the CTW is being discharged in the CK1-CK2 order or
simultaneously, the CTW switches from the discharge state to the charge state.
The MB3793 repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses with the system logic circuit
operating normally.
(6) If no clock pulse is fed to the CK1 or CK2 pin within the watchdog timer monitor time tWD due to some problem with the system
logic circuit, the CTW pin is set to the “L” level threshold voltage VL or less and the MB3793 outputs a reset signal (setting
the RESET pin to “L” level from “H” level).
The value of VL is always about 0.24 V regardless of the detected voltage.
The watchdog timer monitor time tWD is set with the following equation:
.
tWD (ms) = B CTW (F)
.
The value of B is hardly affected by the supply voltage; it is about 1500 with VCC = 5.0 V.
(7) When a certain period of time tWR has passed (until the CTP pin voltage reaches or exceeds Vth again after recharging the
CTP), the MB3793 cancels the reset signal and starts operating the watchdog timer.
The watchdog timer monitor reset time tWR is set with the following equation:
.
tWR (ms) = D x CTP (F)
.
The value of D is about 100 with VCC = 5.0 V.
The MB3793 repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses. If no clock pulse is input, the
MB3793 repeats operations (6) and (7).
(8) If VCC is lowered to the fall-time detected voltage (VSL) or less, the CTP pin voltage decreases and the MB3793 outputs a
reset signal (setting the RESET pin to “L” level from “H” level).
The value of VSL is 3.7 V
(9) When VCC reaches or exceeds VSH again, the MB3793 starts charging the CTP
.
(10) When the CTP pin voltage reaches or exceeds Vth, the MB3793 cancels the reset and restarts operating the watchdog timer.
It repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses.
(11) Making the inhibit pin active (setting the INH pin to “H” from “L”) forces the watchdog timer to stop operation.
This stops only the watchdog timer, leaving the MB3793 monitoring VCC (operations (8) to (10)).
The watchdog timer remains inactive unless the inhibit input is canceled.
(12) Canceling the inhibit input (setting the INH pin to “L” from “H”) restarts the watchdog timer.
(13) The reset signal is output when the power supply is turned off to set VCC to VSL or less.
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MB3793-37A
10. Typical Characteristics
Detection voltage -
Operating ambient temperature
Power supply current-Power supply voltage
40
4.0
3.9
Ta = −40°C to +85°C
35
30
VSH (Ta = +25°C)
Max
25
Watchdog timer monitoring
(VINH = 0 V)
Max
20
3.8
3.7
VSH
Typ
Min
15
10
Typ
Min
VSL
MB3793-37A
VINH VCC
3.6
3.5
f = 1 kHz
Duty = 10%
VL = 0 V
VSL (Ta = +25°C)
CTP
CTW
0.1 μF
0.01 μF
VH = VCC
(Ta = −40°C to +85°C)
−40 −20
0 +20 +40 +60 +80+100
0
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10
Power supply voltage: VCC (V)
Operating ambient temperature: Ta (°C)
Reset output voltage-Reset output current
(P-MOS side)
Reset output voltage-Reset output current
(N-MOS side)
Ta
VRESET
RON
IRESET
500
400
300
200
5.0
−40°C
+25°C
+85°C
98 mV 19.6 Ω
135 mV 27 Ω
167 mV 33.4 Ω
Ta = −40°C
+5 mA
4.9
Ta = +25°C
4.8
4.7
4.6
4.5
Ta = +25°C
Ta = +85°C
Ta = +85°C
4.4
Ta
VRESET
RON
IRESET
4.3
4.2
−40°C
+25°C
+85°C
4.800 V 40 Ω
4.750 V 50 Ω
4.707 V 58.6 Ω
−5 mA
100
0
Ta = −40°C
4.1
4.0
0
−1 −2 −3 −4 −5 −6 −7 −8 −9 −10
0
1
2
3
4
5
6
7
8
9
10
Reset output current: IRESET (mA)
Reset output current: IRESET (mA)
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Page 15 of 29
MB3793-37A
Reset-on reset time -
Operating ambient temperature
(when VCC rising)
Reset output voltage -
Power supply voltage
7
6
5
260
Pull-up resistance: 100 kΩ
240
220
Ta = −40°C to +85°C
200
180
160
140
120
100
80
Ta = +25°C
4
3
Max
Ta = +85°C
2
1
0
Typ
Min
Ta = +25°C
Ta = −40°C
60
0
1
2
3
4
5
6
7
40
Power supply voltage: VCC (V)
20
0
−40 −20
0 +20 +40 +60+80 +100
Operating ambient temperature: Ta (°C)
Watchdog timer reset time -
Operating ambient temperature
(when monitoring)
Watchdog timer monitoring time -
Operating ambient temperature
26
26
Ta = −40°C to +85°C
24
22
24
22
Max
Ta = −40°C to +85°C
20
18
16
14
12
10
8
20
18
16
14
12
10
8
Ta = +25°C
Ta = +25°C
Typ
Max
Typ
Min
Min
6
6
4
4
2
2
0
0
−40 −20
0
+20 +40 +60 +80+100
−40 −20
0 +20 +40 +60 +80+100
Operating ambient temperature: Ta (°C)
Operating ambient temperature: Ta (°C)
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MB3793-37A
Power-on reset hold time -
TP capacitance
Watchdog timer reset time -
TP capacitance
C
C
103
102
101
104
103
102
101
Ta = −40°C
Ta = +25°C
Ta = −40°C
1
10−1
10−2
Ta = +25°C
Ta = +85°C
Ta = +85°C
1
10 −1
10−4 10−3 10−2 10−1
1
101
102
10−4 10−3 10−2 10−1
1
101
102
Power-on reset hold time setting capacitance:
Power-on reset hold time setting capacitance:
CTP (μF)
CTP (μF)
Watchdog-timer monitoring time -
CTW capacitance
103
102
101
Ta = −40°C
Ta = +25°C
1
Ta = +85°C
10−1
10−5 10−4 10−3 10−2 10−1
1
101
Watchdog-timer monitoring time
setting capacitance: CTW (μF)
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MB3793-37A
11. Application Example
11.1 Supply voltage monitor and watchdog timer (1-clock monitor)
VCC
5
VCC
2
CTW
RESET
1
MB3793
RESET
VCC
CTP
INH
CK1
CK2
3
6
8
7
CTW*
CTP*
Microprocessor
CK
GND
4
GND
GND
*: Use a capacitor with less leakage current.
The MB3793 monitors the clock (CK1/CK2) at every other input pulse.
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MB3793-37A
11.2 Supply voltage monitor and watchdog timer stop
V
CC
5
VCC
6
INH
RESET 1
RESET
V
CC
RESET
V
CC
MB3793
Microprocessor 1
Microprocessor 2
2
3
HALT
GND
CTW
CK1
CK
8
CK
HALT
GND
CTW*
CTP*
GND
4
CTP
CK2 7
GND
*: Use a capacitor with less leakage current.
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MB3793-37A
12. Typical Application
VCC
5
VCC
2
1
CTW
RESET
RESET
VCC
RESET
VCC
MB3793
Microprocessor 1
Microprocessor 2
CTW*
CTP*
3
6
8
7
CTP
INH
CK1
CK
CK
GND
GND
GND CK2
4
GND
*: Use a capacitor with less leakage current.
1. Equation of time-setting capacitances (CTP and CTW) and set time
.
=
t
t
[ms]
[ms]
A C [F]
TP
.
PR
.
=
B C
[F] + C C [F]
TP
.
WD
TW
C
C
.
TP
=
However, when
t
[ms]
B C
.
[F]
TW
about 10,
WD
TW
.
=
t
[ms]
D C [F]
.
WR
TP
Values of A, B, C, and D
A
B
C
D
Remark
= 5.0 V
V
1300
1500
0
100
CC
2. (Example) when CTP = 0.1 F and CTW = 0.01 F
.
t
=
130
15
.
PR
time
.
t
=
.
WD
(ms)
.
t
=
10
.
WR
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MB3793-37A
13. Notes On Use
• Take account of common impedance when designing the earth line on a printed wiring board.
• Take measures against static electricity.
- For semiconductors, use antistatic or conductive containers.
- When storing or carrying a printed circuit board after chip mounting, put it in a conductive bag or container.
- The work table, tools and measuring instruments must be grounded.
- The worker must put on a grounding device containing 250 k to 1 M resistors in series.
• Do not apply a negative voltage
- Applying a negative voltage of 0.3 V or less to an LSI may generate a parasitic transistor, resulting in
malfunction.
14. Ordering Information
Part number
Package
Remarks
MB3793-37APF-❏❏❏
8-pin Plastic SOP
(FPT-8P-M01)
conventional version
MB3793-37APNF-❏❏❏
MB3793-37APF-❏❏❏E1
MB3793-37APNF-❏❏❏E1
8-pin Plastic SOP
(FPT-8P-M02)
conventional version
Lead Free version
Lead Free version
8-pin Plastic SOP
(FPT-8P-M01)
8-pin Plastic SOP
(FPT-8P-M02)
15. RoHS Compliance Information of Lead (Pb) Free version
The LSI products of Cypress with “E1” are compliant with RoHS Directive , and has observed the standard of lead,
cadmium, mercury, Hexavalent chromium, polybrominated biphenyls (PBB) , and polybrominated diphenyl ethers
(PBDE) .
The product that conforms to this standard is added “E1” at the end of the part number.
Document Number: 002-08517 Rev. *A
Page 21 of 29
MB3793-37A
16. Marking Format (Lead Free version)
Lead Free version
3793AF
E1XXXX
XXX
SOP-8
(FPT-8P-M01)
INDEX
3793AF
XXXX
E1 XXX
Lead Free version
SOP-8
(FPT-8P-M02)
Document Number: 002-08517 Rev. *A
Page 22 of 29
MB3793-37A
17. Labeling Sample (Lead free version)
lead-free mark
JEITA logo JEDEC logo
MB123456P - 789 - GE1
(3N) 1MB123456P-789-GE1 1000
G
Pb
(3N)2 1561190005 107210
QC PASS
PCS
1,000
MB123456P - 789 - GE1
ASSEMBLED IN JAPAN
2006/03/01
MB123456P - 789 - GE1
1/1
1561190005
0605 - Z01A 1000
Lead Free version
Document Number: 002-08517 Rev. *A
Page 23 of 29
MB3793-37A
18. MB3793-37APF-❏❏❏E1, MB3793-37APNF-❏❏❏E1
Recommended Conditions Of Moisture Sensitivity Level
Item
Condition
IR (infrared reflow) , Manual soldering (partial heating method)
2 times
Mounting Method
Mounting times
Please use it within two years after
Before opening
Manufacture.
From opening to the 2nd
reflow
Storage period
Less than 8 days
When the storage period after
opening was exceeded
Please processes within 8 days
after baking (125°C, 24h)
Storage conditions
5°C to 30°C, 70RH or less (the lowest possible humidity)
[Temperature Profile for Cypress Standard IR Reflow]
(1) IR (infrared reflow)
H rank : 260°C Max.
260 °C
255 °C
170 °C
to
190 °C
(b)
(c)
(d)
(e)
RT
(a)
(d')
(a) Temperature Increase gradient : Average 1°C/s to 4°C/s
(b) Preliminary heating : Temperature 170°C to 190°C, 60s to 180s
(c) Temperature Increase gradient : Average 1°C/s to 4°C/s
(d) Actual heating
(d’)
: Temperature 260°C MAX; 255°C or more, 10s or less
: Temperature 230°C or more, 40s or less
or
Temperature 225°C or more, 60s or less
or
Temperature 220°C or more, 80s or less
(e) Cooling
: Natural cooling or forced cooling
Note : Temperature : the top of the package body
Document Number: 002-08517 Rev. *A
Page 24 of 29
MB3793-37A
(2) Manual soldering (partial heating method)
Conditions : Max Temperature 400°C
Times : 5 s max/pin
Document Number: 002-08517 Rev. *A
Page 25 of 29
MB3793-37A
19. Package Dimensions
8-pin plastic SOP
Lead pitch
1.27 mm
Package width
package length
×
5.3 × 6.35 mm
Gullwing
Lead shape
Sealing method
Mounting height
Weight
Plastic mold
2.25 mm MAX
0.10 g
Code
(Reference)
P-SOP8-5.3×6.35-1.27
(FPT-8P-M01)
8-pin plastic SOP
(FPT-8P-M01)
Note 1) *1 : These dimensions include resin protrusion.
Note 2) *2 : These dimensions do not include resin protrusion.
Note 3) Pins width and pins thickness include plating thickness.
Note 4) Pins width do not include tie bar cutting remainder.
*
1 6.35 –+00..2205 .250 –+..000180
0.17 –+00..0043
.007 +–..000021
8
5
*2 5.30 0.30 7.80 0.40
(.209 .012) (.307 .016)
INDEX
Details of "A" part
2.00 +–00..1255
(Mounting height)
.079 –+..000160
0.25(.010)
"A"
1
4
1.27(.050)
0~8°
0.47 0.08
(.019 .003)
M
0.13(.005)
0.50 0.20
(.020 .008)
0.10 +–00..0150
.004 –+..000024
0.60 0.15
(Stand off)
(.024 .006)
0.10(.004)
Dimensions in mm (inches).
Note: The values in parentheses are reference values.
C
2002-2010 FUJITSU SEMICONDUCTOR LIMITED F08002S-c-6-9
Document Number: 002-08517 Rev. *A
Page 26 of 29
MB3793-37A
8-pin plastic SOP
Lead pitch
1.27 mm
Package width ×
package length
3.9 mm × 5.05 mm
Gullwing
Lead shape
Sealing method
Mounting height
Weight
Plastic mold
1.75 mm MAX
0.06 g
(FPT-8P-M02)
8-pin plastic SOP
Note 1) *1 : These dimensions include resin protrusion.
(FPT-8P-M02)
*
Note 2) 2 : These dimensions do not include resin protrusion.
Note 3) Pins width and pins thickness include plating thickness.
Note 4) Pins width do not include tie bar cutting remainder.
+0.25
1 5.05 –0.20 .199 +–..000180
0.22 –+00..0073
.009 +–..000031
*
8
5
*2 3.90 0.30 6.00 0.20
(.154 .012) (.236 .008)
Details of "A" part
45°
1.55 0.20
(Mounting height)
(.061 .008)
0.25(.010)
0.40(.016)
0~8°
"A"
1
4
1.27(.050)
0.44 0.08
(.017 .003)
M
0.13(.005)
0.50 0.20
(.020 .008)
0.15 0.10
(.006 .004)
(Stand off)
0.60 0.15
(.024 .006)
0.10(.004)
Dimensions in mm (inches).
Note: The values in parentheses are reference values.
C
2002-2012 FUJITSU SEMICONDUCTOR LIMITED F08004S-c-5-10
Document Number: 002-08517 Rev. *A
Page 27 of 29
MB3793-37A
20. Major Changes
Spansion Publication Number: MB3793-37A_DS04-27403
Page
Section
Change Results
Revision 5.0
-
-
Company name and layout design change
Deleted "There is also a mask option that can detect voltages of 4.9 V to 2.4
V in 0.1-V steps."
1
Description
NOTE: Please see “Document History” about later revised information.
Document History
Document Title: MB3793-37A Power Voltage Monitoring IC with Watchdog Timer Datasheet
Document Number: 002-08517
Orig. of
Change
Submission
Date
Revision
ECN
Description of Change
**
TAOA
01/30/2015 Migrated to Cypress and assigned document number 002-08517.
No change to document contents or format.
*A
5175893
TAOA
03/15/2016 Updated to Cypress template
Document Number: 002-08517 Rev. *A
Page 28 of 29
MB3793-37A
Sales, Solutions, and Legal Information
Worldwide Sales and Design Support
Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office
closest to you, visit us at Cypress Locations.
®
Products
PSoC Solutions
ARM® Cortex® Microcontrollers
cypress.com/arm
cypress.com/automotive
cypress.com/clocks
cypress.com/interface
cypress.com/powerpsoc
cypress.com/memory
cypress.com/psoc
cypress.com/psoc
Automotive
PSoC 1 | PSoC 3 | PSoC 4 | PSoC 5LP
Clocks & Buffers
Interface
Cypress Developer Community
Community | Forums | Blogs | Video | Training
Lighting & Power Control
Memory
Technical Support
cypress.com/support
PSoC
Touch Sensing
USB Controllers
Wireless/RF
cypress.com/touch
cypress.com/usb
cypress.com/wireless
© Cypress Semiconductor Corporation 2001-2016. This document is the property of Cypress Semiconductor Corporation and its subsidiaries, including Spansion LLC ("Cypress"). This document,
including any software or firmware included or referenced in this document ("Software"), is owned by Cypress under the intellectual property laws and treaties of the United States and other countries
worldwide. Cypress reserves all rights under such laws and treaties and does not, except as specifically stated in this paragraph, grant any license under its patents, copyrights, trademarks, or other
intellectual property rights. If the Software is not accompanied by a license agreement and you do not otherwise have a written agreement with Cypress governing the use of the Software, then Cypress
hereby grants you under its copyright rights in the Software, a personal, non-exclusive, nontransferable license (without the right to sublicense) (a) for Software provided in source code form, to modify
and reproduce the Software solely for use with Cypress hardware products, only internally within your organization, and (b) to distribute the Software in binary code form externally to end users (either
directly or indirectly through resellers and distributors), solely for use on Cypress hardware product units. Cypress also grants you a personal, non-exclusive, nontransferable, license (without the right
to sublicense) under those claims of Cypress's patents that are infringed by the Software (as provided by Cypress, unmodified) to make, use, distribute, and import the Software solely to the minimum
extent that is necessary for you to exercise your rights under the copyright license granted in the previous sentence. Any other use, reproduction, modification, translation, or compilation of the Software
is prohibited.
CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS DOCUMENT OR ANY SOFTWARE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes to this document without further notice. Cypress does not
assume any liability arising out of the application or use of any product or circuit described in this document. Any information provided in this document, including any sample design information or
programming code, is provided only for reference purposes. It is the responsibility of the user of this document to properly design, program, and test the functionality and safety of any application
made of this information and any resulting product. Cypress products are not designed, intended, or authorized for use as critical components in systems designed or intended for the operation of
weapons, weapons systems, nuclear installations, life-support devices or systems, other medical devices or systems (including resuscitation equipment and surgical implants), pollution control or
hazardous substances management, or other uses where the failure of the device or system could cause personal injury, death, or property damage ("Unintended Uses"). A critical component is any
component of a device or system whose failure to perform can be reasonably expected to cause the failure of the device or system, or to affect its safety or effectiveness. Cypress is not liable, in whole
or in part, and Company shall and hereby does release Cypress from any claim, damage, or other liability arising from or related to all Unintended Uses of Cypress products. Company shall indemnify
and hold Cypress harmless from and against all claims, costs, damages, and other liabilities, including claims for personal injury or death, arising from or related to any Unintended Uses of Cypress
products.
Cypress, the Cypress logo, Spansion, the Spansion logo, and combinations thereof, PSoC, CapSense, EZ-USB, F-RAM, and Traveo are trademarks or registered trademarks of Cypress in the United
States and other countries. For a more complete list of Cypress trademarks, visit cypress.com. Other names and brands may be claimed as property of their respective owners.
Document Number: 002-08517 Rev. *A
Revised March 15, 2016
Page 29 of 29
相关型号：
MB3793-37APNF-XXX
Power Supply Management Circuit, Fixed, 1 Channel, BIPolar, PDSO8, 3.90 X 5.05 MM, 1.75 MM HEIGHT, 1.27 MM PITCH, PLASTIC, SOP-8
FUJITSU
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