Mitsumi MM1426 Driver ic for vibrators monolithic ic mm1426 Datasheet

MITSUMI
Driver IC for Vibrators MM1426
Driver IC for Vibrators
Monolithic IC MM1426
Outline
This IC was developed as a driver for vibrator motors, and has an output voltage set at 1.3V.
The input voltage is monitored, and if a constant voltage is not input the output is turned off.
Features
1. Compact package for small mounting area.
2. In addition to output control through the input voltage, the IC can be turned on and off through the CONT pin.
3. Good ripple rejection.
4. Output currents of up to 150mA.
5. Operating voltage of up to 12V.
6. Output voltage is available in 0.1V steps from 1.2V to 2.0V.
Package
SOT-25A
Applications
Cellular phones, PHS, game, pagers.
Pin Assignment
5
1
4
2
SOT-25
3
1
CONT
2
GND
3
N.C
4
VOUT
5
VIN
MITSUMI
Driver IC for Vibrators MM1426
Equivalent Circuit Diagram
Pin Description
Pin No. Pin name
1
CONT
Functions
Output voltage on/off-control pin
VCONT
Output
L
OFF
H
ON
Connect cont-terminal with VIN,
when it is not used.
2
GND
3
N.C
4
VOUT
5
VIN
GND pin
Regulator Output pin
Voltage-supply input pin
Output voltage is not output when input voltage
is less than input voltage detection value.
Note that consumption current flows even
when output voltage is OFF due to input
voltage detection. Turn output OFF with the
CONT pin in order to suppress consumption
current completely.
Equivalent circuit diagram
MITSUMI
Driver IC for Vibrators MM1426
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Operating temperature
TOPR
-20~+75
°C
Storage temperature
TSTG
-40~+125
°C
Supply voltage
VCC
-0.3~+12
V
Output current
IOUT
200
mA
Power dissipation
Pd
150 (Alone)
mW
Recommended Operating Conditions
Item
Symbol
Ratings
Unit
Operating temperature
TOPR
-20~75
°C
Output current
IOP
0~150
mA
Operating voltage
VOP
1.8~12
V
Electrical Characteristics
(Except where noted otherwise, Ta=25°C)
Item
Symbol
Measurement conditions
Output voltage
Vo
VIN=3.5V Io=30mA
No-Load input current
Iccq1
Input current 1 (OFF)
Input current 2 (OFF)
Min. Typ. Max. Unit
-3%
VO
+3%
V
VIN=3.5V Io=0mA
120
240
µA
Iccq2
VIN=1.8V VCONT=1.6V
80
160
µA
Iccq3
VIN=3.5V VCONT=0V
0.1
µA
Line regulation
V1
VIN=3V~5V Io=30mA
10
20
mV
Load regulation
V2
VIN=3.5V Io=0~100mA
30
60
mV
Vo temperature coefficient
Vo/ T
Ripple rejection
RR
VIN low detector voltage
V SL
VIN low detector voltage
temperature coefficient
VSL/ T
VIN high detector voltage
VSH
High threshold voltage
Vonh
Cont terminal current
ION
High threshold voltage
H
Low threshold voltage
L
Tj=-20~+75°C VIN=3.5V
100
ppm/°C
55
70
dB
2.0
2.1
Io=30mA
VIN=3.5V f=120Hz
VRIPPLE=1VP-P, Io=30mA
VIN=H
L Io=30mA
Tj=-20~+75°C VIN=H
VIN=L
VIN=H
L Io=30mA
200
H Io=30mA
L, L
2.2
2.6
H
ppm/°C
2.8
500
VCONT=1.6V
5
V
V
mV
10
µA
1.6
VIN+0.3
V
-0.3
0.4
V
MITSUMI
Driver IC for Vibrators MM1426
Measuring Circuit
Application Circuits
NOTE 1 : This regulator is not internally compensated and thus requires an external output-capacitor (COUT) for
stability.
Timing Chart
2.6V
2.1V
VIN
0V
H
CONT
L
VOUT
1.3V
0V
MITSUMI
Driver IC for Vibrators MM1426
Characteristics
Line regulation
60
Line regulation (mV)
Load regulation (mV)
Load regulation
40
20
0
-20
-40
10
5
0
-5
-10
-60
0
20
40
60
80
4
100 120 140
6
8
1.5
1.25
1
0.75
0.5
0.25
0
0
100
200
2
1.75
1.5
1.25
1
0.75
0.5
0.25
0
300
25
Output current (mA)
800
700
Alone
600
500
On Board
57x31x0.8mm
400
300
200
100
0
25
50
75
Temperature (°C)
100
75
125
Temperature (°C)
Allowable loss
Allowable loss (mW)
12
Thermal shutdown
Output voltage (V)
Output voltage (V)
Current limit
0
10
VIN (V)
Output current (mA)
125
175
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