Mitsumi MM1437 Regulatorreset ic Datasheet

Regulator+Reset IC MM1437
MITSUMI
Regulator+Reset IC
Monolithic IC MM1437
Outline
This IC combines a low saturation 5V regulator, adapted for low power consumption, and a reset function
(regulator output monitoring), for which there is significant market need, that uses the built-in 4.2V detection
delay circuit.
Features
1. Small input/output voltage difference
0.25V typ.
2. High input voltage
18V max.
3. Internal thermal shutdown circuit.
4. Internal current-limiting circuit.
5. Adjustment-free reset detection voltage
4.2V typ.
6. Easy to set delay time from voltage detection to reset release.
Package
SOP-7
SIP-5
Applications
TV, monitors, air conditioners, others.
Pin Assignment
1
GND
---------------------------------------------------------------------------------------
7
6
1
2
5
3
4
SOP-7
2
RESET
3
Cd
4
VIN
5
VOUT
6
GND
7
N.C
___
1
2
3
SIP-5
4
5
1
RESET
2
Cd
3
VIN
4
VOUT
5
GND
Regulator+Reset IC MM1437
MITSUMI
Equivalent Circuit Diagram
Pin Description
Pin No.
1 (SOP-7)
5 (SIP-5)
Pin name
GND
------------------------------------------------------------------------------
2 (SOP-7) RESET
Functions
GND pin
Output pin voltage detection output
VOUT pin voltage detection output pin
1 (SIP-5)
------------------------------------------------------------------------------
RESET pin logic
–––
RESET
3 (SOP-7)
Cd
VOUT<Vs
L
VOUT>Vs
H
Delay time capacitor pin
------------------------------------------------------------------------------
2 (SIP-5)
RESET pin output delay time
can be set by the capacitance
connected to the Cd pin.
tPLH= 100000 · C
tPLH: transmission delay time [S]
C: capacitor value [F]
4 (SOP-7)
3 (SIP-5)
5 (SOP-7)
VIN
Voltage supply input pin
VOUT
Regulator output pin
6 (SOP-7)
GND
GND pin
7 (SOP-7)
N.C
4 (SIP-5)
Equivalent circuit diagram
Regulator+Reset IC MM1437
MITSUMI
Absolute Maximum Ratings
Note:
Item
Symbol
Ratings
Unit
Operating temperature
TOPR
-20~+85
°C
Storage temperature
TSTG
-40~+125
°C
Supply voltage
VCC
-0.3~+18
V
Output current
IOUT
200
mA
Power dissipation
Pd
650*
mW
* When mounted on a 55
20 mm paper phenol board (SOP-7)
When mounted on a 45 45 mm paper phenol board (SIP-5)
Recommended Operating Conditions
Item
Symbol
Ratings
Unit
Operating temperature
TOP
-20~+85
°C
Output current
IOP
0~150
mA
Operating voltage
VOP
2~16
V
Electrical Characteristics
(Except where noted otherwise, Ta=25°C)
Item
Symbol
Measurement conditions
Min. Typ. Max. Unit
No-load input current 1
Iccq1
VIN=6V IOUT=0mA
400
No-load input current 2
Iccq2
VIN=4V IOUT=0mA
2.5
Output voltage
VOUT
VIN=6V IOUT=30mA
Input-output differential voltage
Vi0
800
µA
mA
Regulator
4.90
5.00
5.10
V
VIN=4.8V IOUT=150 mA
0.25
0.50
V
Line regulation
V1
VIN=6V~10V IOUT=30mA
10
30
mV
Load regulation
V2
VIN=6V IOUT=0~150mA
40
80
mV
Vo temperature
coefficient
VOUT/ T
*1
Ripple rejection
RR
*1
Output noise voltage
*1
Tj=-20~+85°C
VIN=6V IOUT=30mA
VIN=6V f=120Hz
VRIPPLE=1VP-P, IOUT=30mA
Vn
VIN=6V, f=20~80kHz IOUT=30mA
VS
VIN=H L
50
100
ppm/°C
60
dB
200
400
µVrms
4.2
4.37
V
Reset
Detecting voltage
Vs temperature coefficient *1
VS/ T
Hysteresis voltage
VS
4.03
Tj=-20~+85°C
VOUT=H
L
H
100
25
ppm/°C
50
100
mV
100
200
mV
10
15
mS
VOL
VOUT=3.9V
RESET delay time
tPLH
Cd=0.1µF
"L" transmission delay time *1
tPHL
Cd=0.1µF
30
90
µS
Threshold operating voltage
VOPL
VOL=0.4V
0.65
0.85
V
Low-level output voltage
--------------------------------------------------------------------------------
Note 1: design guaranteed
5
Regulator+Reset IC MM1437
MITSUMI
Measuring Circuit
Application Circuit
Note 1 : This regulator is not internally compensated and thus requires an external output-capacitor (COUT) for
stability.
Note 2 : RESET-terminal with a built-in pull-up resistance (10kâ„Ĥ).
------------------------------------------------------------
Regulator+Reset IC MM1437
MITSUMI
Timing Chart
VIN
10V
5V
0V
VOUT
5V
VS
VS
0V
RESET
5V
tPLH
0V
tPLH
Regulator+Reset IC MM1437
MITSUMI
Characteristics
Quiescent current (IOUT=0mA)
6
5
VOUT
4
3
2
RESET
1
0
0
1
2
3
4
5
6
7
Quiescent current (mA)
Output voltage (V)
Detection voltage (IOUT=0mA)
3
2.5
2
1.5
1
0.5
0
0
Input Voltage (V)
Load regulation (mV)
20
10
0
-10
-20
-30
6
8
10
12
14
16
14
16
20
0
-20
-40
-60
50
100
150
Current limit
Output voltage (V)
Ripple rejection (dB)
12
40
0
100
90
80
70
60
50
40
30
20
10
0
100
1000
10000
6
5
4
3
2
1
0
0
100000
50
150
200
250
300
Allowable loss
Allowable loss (mW)
RESET delay time
100
Output current (mA)
Frequency (HZ)
100
Deyal time (mS)
10
Output current (mA)
Ripple rejection
10
1
0.01
8
60
Input voltage (V)
10
6
Load regulation
30
Line regulation (mV)
4
Input Voltage (V)
Line regulation
4
2
0.1
Cd-capacitor (µF)
1
On board 55 22mm (SOP)/45 45mm (SIP)
800
700
600
500
400
300
200
100
0
-25
0
25
50
75
Temperature (°C)
100
125
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