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■
Applications
Microcontroller systems for use in automobiles and other
industrial equipment
■
Functions/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
fl exibility is allowed in applications (LA5693AM)
●
Variable detection voltage (LA5693AM)
●
Watchdog time can be made longer (LA5693AM)
●
5V output voltage power supply controller
(LA5693D/93M)
●
Built-in watchdog timer (LA5693D/93M)
●
Power supply reset signal generation function
(LA5693D/93M)
●
Reset hold output RES(2) (cleared with CK reinput)
(LA5693D/93M)
Absolute maximum
ratings input voltage
Total power dissipation Package
Function reset
logic output
Watchdog time typ
(Ct=2
μ
F)
41V
0.37W (LA5693AM)
0.5W (LA5693D/93M)
MFP8(225mil) (LA5693AM/93M)
DIP8(300mil) (LA5693D)
Inverted 40ms
Power ICs with a Watchdog Timer Function
Power ICs with a Watchdog Timer Function
LA5693AM/93D/93M
LA5693AM/93D/93M
Block Diagram
VREF
GND
CPU
Ct
Ct
VS
DO
VOVCONT
V
CC
VO
V
DD
V
SS
10kΩ
15kΩ
15kΩ
CK
R3
R1
R2
R5
750kΩ
R8
390kΩ
R4
R6
TR2
2SA1258
TR3
2SC3031
D1
DS135E
R7
C ck
C in
RES(1)
RES
RES(2)
WDT
Start
Up
+ +
+
10μF
Co
100μF
0.01μF
10kΩ
1kΩ
1.1kΩ
2.2kΩ
Error AMP
VOUT
DETECTOR
RESET
GENERATOR
785
6
2
4
13
unit: mm
SANYO: DIP8(300mil)
unit: mm
SANYO: MFP8(225mil)
9.14
14
85
1.4
1.0
6.4
7.62
0.25
(3.0)
3.9MAX
0.51MIN
3.2
(0.76)
2.54
0.5
14
85
5.0
0.63
6.4
0.15
0.35
1.27
(0.65)
4.4
(1.5)
1.7max
0.1
■
Applications
unit: mm
SANYO: MFP10S(225mil)
DC-DC converter secondary side control IC
■
Functions/Features
●
Built-in circuit that prevents system malfunction when
the input voltage (car battery voltage) falls.
●
Provides a constant voltage output that in proportion
to the PWM input signal (permits output voltage
control by microcontroller)
●
High-precision reference current (current control amp)
92.5
μ
A ± 2.7%
●
Output voltage can be set through an external resistor.
●
Each loop of the voltage amp and current amp is
independent.
Battery type
Absolute maximum
ratings Input voltage
Total power
dissipation
Package Functions/Features
Lithium-ion,
nickel-metal hydride
14.5V 0.36W MFP10S(225mil)
Car battery DC-DC converter control IC, output voltage proportional to
PWM input signal for charging lithium-ion batteries, etc.
Rechargeable Battery Charge Control ICs
Rechargeable Battery Charge Control ICs
LA5636M
LA5636M
Block Diagram
DOUT
GND
GND
V
CC
ICONST
10kΩ
33kΩ
200kΩ
30kΩ
13kΩ
R3
R1
R2
R4
R6
Isen-IN
V-IN
Isen+IN
C1V+IN
R8
R7
2.0V
R9
X2
X1
X4
X3
X5
1.25V
R5
1.6kΩ
R10
R11
100kΩ
Vref
2.5V
±1%
+
-
+
-
+
-
+
-
Tr1
+
Tr13
Tr12
PWM
GND
A/D1
A/D2
PWM
Tr11
Tr9
Tr10
Tr8
Tr7
Tr2
Tr3
Tr4
Tr6
Tr 5
+
+
+
GND
IN
12V/24V
V
OUT
Batt
Microcontroller
+
-
67
893
5
1
10
2
4
1
10
5
6
(0.5)
1.7max
1.00.35
5.0
0.15
6.4
(1.5)
0.1
4.4
0.63