Sanyo LA5611 Multifunctional voltage regulator for tvs and vcr Datasheet

Ordering number: EN 5196
Monolithic Linear IC
LA5611
Multifunctional Voltage Regulator
for TVs and VCRs
Applications
Package Dimensions
. Audiovisual equipment, VCRs and TVs
unit : mm
3107-SIP13H
Features
[LA5611]
. Low saturation type of regulator (ON/OFF function built in)
. Control amplifier built in.
. Current limit and thermal limit circuits built in
. Reverse current prevention provided (V 4)
O
SANYO : SIP13H
Specfications
Maximum Ratings at Ta = 25 °C
Parameter
Maximum input voltage
Symbol
Conditions
Ratings
VIN1 max
VIN2 max
Unit
22
VIN1 ^ VIN2
No heat sink
V
VIN1
Allowable power dissipation
Pd max
Thermal resistance between
junction and case
2
θj-c
Operating temperature
Topr
–20 to +80
°C
Storage temperature
Tstg
–40 to +150
°C
Ratings
Unit
4.7
W
°C/W
Operating Conditions at Ta = 25 °C
Parameter
Input voltage
Symbol
Conditions
VIN1
11.5 to 20
V
VIN 2
6.2 to 20
V
Output current 1
IO1
Output current 2
IO2
10 to 480
mA
Output current 3
IO3
10 to 240
mA
Output current 4
IO4
5 to 48
mA
Within ASO of external Tr
mA
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
92895HA (II) No.5196-1/5
LA5611
Operating Characteristics at Ta = 25 °C, See specified Test Circuit.
Parameter
Symbol
Conditions
[No-load mode] VEN = low, VIN1 = 14 V, VIN2 = 6.6 V, IO1 to IO4 = 0 mA
IIN1
Quiescent current
IIN2
[Regulator 1] VEN = low, VIN1 = 14 V, VIN2 = 6.6 V, IO1 = 500 mA, with specified extenal transistor
Output voltage 1
VO1
Dropout voltage
VDROP1
Line regulation
nVOLN1
12 V % VIN1 % 16 V
Load regulation
nVOLD1
0.1 A % IO1 % 1 A
Ripple rejection
Rrej1
Output low-level voltage
VO1 OFF
Control output current
ICONT1
Output voltage/temperature
nVO1/nTa
coefficient
[Regulator 2] VEN = low, VIN1 = 14 V, VIN2 = 6.6 V, IO2 = 400 mA
Output voltage 2
VO2
Dropout voltage
VDROP2
Line regulation
nVOLN2
6 V % VIN2 % 7.2 V
Load regulation
nVOLD2
0.1 A % IO2 % 0.4 A
Peak output current
IOP2
Output short-circuit current
IOSC2
Ripple rejection
Rrej2
Output low-level voltage
VO2 OFF
Output voltage/temperature
nVO2/nTa
coefficient
[Regulator 3] VEN = high, VIN1 = 14 V, VIN2 = 6.6 V, IO3 = 200 mA
Output voltage 3
VO3
Dropout voltage
VDROP3
Line regulation
nVOLN3
6 V % VIN2 % 7.2 V
Load regulation
nVOLD3
10 mA % IO3 % 200 mA
Peak output current
IOP3
Output short-circuit current
IOSC3
Ripple rejection
Rrej3
Output voltage/temperature
nVO3/nTa
coefficient
[Regulator 4] VEN = high, VIN1 = 14 V, VIN2 = 6.6 V, IO4 = 40 mA
Output voltage 4
VO4
Dropout voltage
VDROP4
Line regulation
nVOLN4
12 V % VIN1 % 16 V
Load regulation
nVOLD4
10 mA % IO4 % 40 mA
Peak output current
IOP4
Output short-circuit current
IOSC4
Ripple rejection
Rrej4
Output voltage/temperature
nVO4/nTa
coefficient
[Output on/off control] VIN1 = 14 V, VIN2 = 6.6 V
Output on control voltage
VENL
VO1, VO2: on
Output off control voltage
VENH
VO1, VO2: off
[Control Amplifier] VIN1 = 14 V, VIN2 = 6.6 V
Control output current
ICONT2
Resistance ratio
KR
KR = R4/R3, Vref = 1.28 V typ
min
8.5
typ
max
Unit
8
2
16
4
mA
mA
9.0
0.8
9.5
1.6
140
150
V
V
mV
mV
dB
V
mA
50
0.2
10
±1
4.80
mV/ °C
5.05
0.5
5.30
1.0
20
100
90
50
240
480
0.2
±0.5
4.80
mV/ °C
5.05
0.5
5.30
1.0
20
100
40
50
120
240
±0.5
5.4
5.7
3.8
V
V
mV
mV
mA
mA
dB
V
V
V
mV
mV
mA
mA
dB
mV/ °C
6.0
5.0
40
65
70
50
V
V
mV
mV
mA
mA
dB
±1
mV/ °C
40
1.0
VIN1
3.0
10
V
V
mA
9.94
No.5196 - 2/5
LA5611
Allowable power dissipation, Pd max — W
Pd max — Ta
Infinite heat sink
Aluminum heat sink
mounting conditions
Tightening torque: 4 kg.cm Note 1
With plain washer and
silicone grease applied
No heat sink
Ambient temperature, Ta — °C
Note 1: The tightening torque referred to in the above figure is a condition specified for the heat dissipation characteristics and not
a working condition to be met when mounting the heat sink.
Test Circuit
Phase
compensation
or
its equivalent
Pin Functions
No.
1
2
3
4
5
6
VO3
EN
GND
VO2
VIN2
VO4
Symbol
7
ADJ2
8
VO1
9
CONT1
10
ADJ1
11
12
13
PC
CONT2
VIN1
Function
5.05 V/240 mA regulator, with current limit, thermal shutdown.
Regulator 1 and regulator 2 on/off control. Low active.
Substrate of the LA5611 (minimum potential).
5.05 V/480 mA regulator, with on/off, current limit, thermal shutdown.
Low voltage input.
5.7 V/40 mA regulator with reverse current prevention.
VO1 adjustment pin. Resistance between pin 7 and ground → VO1 up.
Resistance between pin 7 and pin 8 → VO1 down
Output voltage sensor of 9.0 V regulator
Base control of external NPN transistor. ICONT1 = 10 mA, with on/off, thermal shutdown coupled with
the internal thermal shutdown of this regulator.
VIN1 adjustment pin. Resistance between pin 10 and ground → VIN1 up.
Resistance between pin 13 and pin 10 → VIN1 down
Phase correction pin of switching regulator control amplifier.
Drive output of switching regulator control amplifier.
High voltage input.
No.5196 - 3/5
LA5611
Function Table
(V: built in, ×: not built in)
Circuit block
Function
Input line
VO1
V O2
VO3
V O4
Control
amplifier
VIN1
VIN1
VIN2
VIN2
VIN1
Current limit
×
V
V
V
×
Thermal limit
V
V
V
×
×
On/off control
V
V
×
×
×
Usage Notes
(1) Apply voltages to the voltage input pins on condition that VIN1 ^ VIN2.
(2) Supply the voltages simultaneously to VIN1 and VIN2. Do not use the LA5611 with voltage applied to only one of these pins.
(3) Since the control circuit of regulator 1 does not have current limit protection of such as an external NPN transistor, provide
this protection in each application.
Logic Table
Conditions : when VIN1^ VIN2 (at VIN1 ^ 11.5 V, VIN2 ^ 6.2 V)
EN
VO1, VO2
L or open
H
H
L
(1) ‘‘H’’ for EN denotes high level; ‘‘L’’ denotes low level.
(2) ‘‘H’’ for VO denotes output ON voltage; ‘‘L’’ denotes output OFF voltage.
Thermal Design Notes
(1) In the LA5611, the junction temperature (Tj) at which thermal shutdown is activated is approximately equal to 130°C.
(2) Consequently, the operating temperature range of REG1, REG2 and REG3 with the thermal shutdown function is restricted
by the thermal shutdown characteristics (typical value) shown in the figure below.
(3) The thermal shutdown characteristics vary ±20°C or so. Since thermal shutdown is liable to occur with inadequate heat
dissipation, sufficient consideration must be given to the heat dissipation design.
Allowable power dissipation, Pd — W
Thermal Shutdown Characteristics
Typical Characteristics
Ambient temperature, Ta — °C
No.5196 - 4/5
LA5611
Equivalent Circuit Block Diagram and Sample Application Circuit
Switching
regulator
control
amplifier
Thermal
Shutdown
detection
Start-up
Error
amplifier
Reverse
current
prevention
Phase
compensation
Converter transformer
Switching
regulator
External Tr
Photocoupler
Application Notes
(1) Depending on the type, load current and connection position (distance from the LA5611) of the external NPN transistor, the
capacitor C7 and resistance R6 is necessary for preventing oscillation.
(2) C1 to C6 are bypass capacitors for preventing oscillation: as such, they must be positioned as close to the LA5611 as possible
in order to stabilize operation.
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,
nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or
indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors
and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and
expenses associated with such use:
2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO
ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume
production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use
or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of September, 1995. Specifications and information herein are subject to change without notice.
No.5196 - 5/5
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