SANYO LA5693D

Ordering number : EN2769D
LA5693D
LA5693M
Monolithic Linear IC
with Watchdog Timer
Voltage Regulator Driver
Overview
The LA5693D and LA5693M is a single-chip voltage regulator for microcomputer system monitor use that performs the
functions of 5V output voltage control, watchdog timer, and voltage detector. Since the LA5693D and LA5693M can hold
the reset output, it is especially suited for use in peripheral control and monitor output applications (example: valves used
in refrigeration equipment, hot water supply system).
Features
• An external PNP transistor can be used to provide a low-saturation voltage regulator.
• Since the CK input has no edge detector, a high degree of flexibility is allowed in applications.
• Variable detection voltage.
• The watchdog time can be made longer.
Functions
• Output voltage 5V control.
• Watchdog timer.
• Power-ON reset function.
• Reset hold output [RES (2)] (Cleared with CK re-input).
Applications
• Microcomputer system for car equipment, refrigeration/heating equipment, office automation equipment.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
70908 MS/D0597HA (KT)/8199YT/4268TA, TS No.2769-1/7
LA5693D,5693M
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Control pin voltage
Control pin current
Symbol
VCONT max
Conditions
Ratings
Unit
1s
60
V
41
V
ICONT max
11
mA
CK input voltage
VCK max
25
V
Reset pin voltage
V RES(1) max,
41
V
V RES(2) max
Allowable power dissipation
Pd max
LA5693D
500
mW
LA5693M
370
mW
Operating temperature
Topr
-40 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
* : A PNP transistor is connected to the LA5693D, LA5693M externally to provide a low-saturation voltage regulator.
Therefore, ICONT≈100mA will flow, as starting current, in the VCC range where the output cannot be regulated.
Operating Conditions at Ta = 25°C
Parameter
Control pin voltage
Control pin current
Reset output current
Symbol
Conditions
Ratings
VCONT
Unit
6 to 40
ICONT max
V RES(1) max,
External R pull-up
V
10
mA
8
mA
4
V
V RES(2) max
Reset detection voltage
VS min
Electrical Characteristics at Ta = 25°C, VCC = 14V, IO=50mA, unless otherwise specified.
Parameter
Output voltage
Symbol
Conditions
VO
Ratings
min
typ
4.8
Unit
max
5.0
5.2
Line regulation1
∆VOLN1
9V ≤ VCC ≤ 16V
2
5
mV
V
Line regulation2
∆VOLN2
6V ≤ VCC ≤ 40V
4
30
mV
Load regulation
∆VOLD
1mA ≤ IO ≤ 50mA
4
30
mV
6.5
mA
Current dissipation
ICC
IO=0
4.4
Output noise voltage
VNO
10Hz ≤ f ≤ 100kHz, VCK = 0V
150
µV
∆VO/∆Ta
IO = 5mA, –40°C ≤ Ta ≤ +85°C
±0.2
mV/°C
Temperature coefficient of
output voltage
Reference voltage
VREF
1.13
‘H’-level CK input voltage
VIH
‘L’-level CK input voltage
VIL
‘H’-level CK input current
IIH
VCK = 5V
IIL
VCK = 0V
‘L’-level CK input current
‘H’-level reset output voltage
V ORH(1)/
1.18
1.23
V
0.8
V
0.7
mA
2
RES(2): 10kΩ pull-up
V
0.3
µA
-1.0
-0.1
4.8
5.0
5.2
V
40
200
mV
0.16
0.8
V
V ORH(2)
‘L’-level reset output voltage 1
V ORL(1)1/
RES(2): 10kΩ pull-up
V ORL(2)1
‘L’-level reset output voltage 2
V ORL(1)2/
I RES(1) = I RES(2) = 8mA
V ORL(2)2
CK input pulse width
µs
tCKW
VCK = 5V
td
Ct = 1µF
7.5
10
12.5
ms
tWD
Ct = 1µF
30
40
50
ms
Watchdog reset time
tWR
Ct = 1µF
0.1
0.25
0.4
ms
Reset hysteresis voltage
Vhys
VS = 4.5V
100
200
300
mV
Reset output delay time
Watchdog time
3
No.2769-2/7
LA5693D,5693M
Package Dimensions
Package Dimensions
unit : mm (typ)
3001D
unit : mm (typ)
3032D
[LA5693D]
9.14
8
5.0
5
0.63
4.4
6.4
6.4
4
1
1.4
(0.65)
4
1.27
0.35
0.15
(0.76)
0.1
0.51MIN
3.2
(1.5)
(3.0)
1.0
1.7max
0.25
1
5
7.62
8
3.9MAX
[LA5693M]
2.54
0.5
SANYO : MFP8(225mil)
SANYO : DIP8(300mil)
Pin Assignment
VCONT 1
RES(2) 2
VO 3
8 CK
7 Ct
LA5693D
LA5693M
6 RES(1)
GND 4
5 VS
Top view
Block Diagram
Error
amp
RES(1)
Reset
generator
RES(2)
WDT
Voltage detector
VS
15kΩ
VREF
15kΩ
Starter
VO
10kΩ
VCONT
CK
GND
Ct
RES(1) : Contains a pull-up resistor of 10kΩ.
RES(2) : Open collector.
No.2769-3/7
LA5693D,5693M
Test Circuit
TR1
VCC
+
VO
+
R8
Cin
10µF
Co
100µF
390Ω
VCONT
VO
R1
VS
R2
LA5693
RES(1)
RES(2)
Ct
10kΩ
R3
GND
CK
CCK
0.01µF
+
Ct
Application Circuit Example
2SA1289
TR1
VCC
VO
R8
+
Cin
10µF
+
390Ω
VCONT
VO
Co
100µF
R1
VDD
VS
TR2
2SA1258
R6
1.1kΩ
R7
2.2kΩ
D1
DS13SE
R3
10kΩ
RES(2)
R5
750Ω
CPU
RES
RES(1)
R4
1kΩ
TR3
2SC3331
R2
LA5693
GND
CK
DO
VSS
Ct
+
CCK
0.01µF
Ct
VS=VREF ×
VREF≈1.18[V]
R1
R2 + 1
td=10×Ct(µF)
[ms]
tWD=40×Ct(µF) [ms]
tWR=0.25×Ct(µF) [ms]
No.2769-4/7
LA5693D,5693M
Note on application
1. For stable operation, place Cin, CO, and TR1 as near to the IC as possible.
2. When used in 0°C or below it, a capacitor of which impedance at high-frequency operation is low and has a good
temperature characteristic (such as SANYO OS-CON capacitor or others) should be used to prevent oscillation.
3. Set VS to the output voltage level where the circuit will be reset using external resistors R1 and R2. VS should be set
to 4V or greater due to internal circuit operation.
4. CCK must be inserted to cut the high range element of clock noise to prevent it from becoming a reset output noise.
5. For Ct, a capacitor which less varies the capacitance according to the temperature should be used.
Timing Chart
Application of power
Instantaneous drop
VCC
0
5V
VS
VO 0
4V
2V
Ct 0
RES(1)
RES(2)
CK
Vhys
0
0
0
Digital output at I/O
port of microcomputer
td
Microcomputer
operation start
tCKW
tWD
tWR
td
CPU
abnormality
Note : Edge-triggered at the point indicated by the arrow of CK signal.
No.2769-5/7
LA5693D,5693M
Pd max -- Ta
LA5693D
5
LA5693M
300
200
3
2
1
100
--20
20
0
40
60
80
Ambient temperature, Ta -- °C
0
100
2
3
4
5
6
7
8
9
Supply voltage, VCC -- V
10
11
12
ILA01054
VO -- Ta
4.93
Ta=25°C
IO=50mA
R1=11kΩ
R2=3.9kΩ
VCC=14V
IO=5mA
4.92
Output voltage, VO -- V
5
1
ILA01053
VRES -- VO
6
50mA
0
0
--40
Reset output voltage, VRES -- V
4
300mA
400
370
Ta=25°C
IO=5mA
500
VO -- VCC
6
Output voltage, VO -- V
Allowable power dissipation, Pd max --mW
600
4
3
2
4.91
4.90
4.89
1
Indeterminate operation
4.88
--60
0
0
1
2
3
4
5
Output voltage, VO --V
6
0
20
40
60
Current drain, ICC -- mA
5.0
60
40
100
ILA01056
VCC=14V
IO=0
RB=390Ω
5.2
800
80
ICC -- Ta
5.4
Ta=25°C
IO=0
100
Current drain, ICC -- mA
--20
Ambient temperature, Ta -- °C
ICC -- VCC
120
--40
ILA01055
4.8
4.6
4.4
4.2
4.0
3.8
20
3.6
0
0
1
2
3
4
5
6
7
8
9
Supply voltage, VCC -- V
11
12
IO=50mA
80
300mA
60
70
60
50
40
30
Ta=25°C
8V≤VCC ≤18V
Co=100µF
IO=50mA, 300mA
20
10
0
2 3
5
100
2 3
5
1k
2 3
5
Frequency, f -- Hz
10k
2 3
5
100k
ILA01059
--20
0
20
40
60
Ambient temperature, Ta -- °C
Reset output delay time, td -- ms
Watchdog time, tWD -- ms
90
--40
ILA01057
Rrej -- f
100
Ripple rejection, Rrej -- dB
10
3.4
--60
50
80
100
ILA01058
td, tWD -- Ta
VCC=14V
IO=50mA
Ct=1µF
t WD
40
30
20
td
10
0
--60
--40
--20
0
20
40
60
Ambient temperature, Ta -- °C
80
100
ILA01060
No.2769-6/7
LA5693D,5693M
tWR -- Ta
0.5
0.4
0.3
0.2
0.1
0
--60
--40
--20
0
20
40
60
Ambient temperature, Ta -- °C
320
300
280
260
240
220
200
--60
1.6
1.2
0.8
0.4
--40
--20
0
20
40
60
80
Ambient temperature, Ta -- °C
ILA01061
VCC=14V
IO=50mA
VCK=5V
340
VCC=14V
IO=5mA
0
--60
100
IIH -- Ta
360
CK input current, IIH -- µA
80
VIN -- Ta
2.0
CK input threshold voltage, VIN -- V
VCC=14V
IO=50mA
Ct=1µF
100
ILA01062
VORL(2) -- IRES(2)
5
L reset output voltage, VORL(2) -- mV
Watchdog reset time, tWR -- ms
0.6
VCC=14V
IO=50mA
3
2
C
85°
C a=
25° T
100
7
°C
--40
5
3
2
10
--40
--20
0
20
40
60
Ambient temperature, Ta -- °C
80
100
ILA01063
3
5
7
1.0
2
3
5
Reset output current, IRES(2) -- mA
7
10
ILA01064
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
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semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
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product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
SANYO Semiconductor Co.,Ltd. product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
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intellctual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of July, 2008. Specifications and information herein are subject
to change without notice.
PS No.2769-7/7