La5636m, Power ics with a watchdog timer function, Rechargeable battery charge control ics – Sanyo EP91G User Manual
Page 12: Block diagram
21
22
■
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=2μF)
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
VO
VCONT
VCC
VO
VDD
VSS
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
0.01
μ
F
10kΩ
1kΩ
1.1kΩ
2.2kΩ
Error AMP
VOUT
DETECTOR
RESET
GENERATOR
7
8
5
6
2
4
1 3
unit: mm
SANYO: DIP8(300mil)
unit: mm
SANYO: MFP8(225mil)
9.14
1
4
8
5
1.4
1.0
6.4
7.62
0.25
(3.0)
3.9MAX
0.51MIN
3.2
(0.76)
2.54
0.5
1
4
8
5
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)
92.5μA ± 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
VCC
ICONST
10kΩ
33kΩ
200kΩ 30kΩ
13kΩ
R3
R1
R2
R4
R6
Isen-IN
V-IN
Isen+IN
C1
V+IN
R8
R7
2.0V
R9
X2
X1
X4
X3
X5
1.25V
R5
1.6kΩ
R10
R11
100k
Ω
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
VOUT
Batt
Microcontroller
+
-
6
7
8
9
3
5
1
10
2
4
1
10
5
6
(0.5)
1.7max
1.0
0.35
5.0
0.15
6.4
(1.5)
0.1
4.4
0.63