ALPHA-MICRO AMG

AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
1. Functional Description
The AMG-LI080 is a timer IC with a gate driver output for MOSFETs. The timer is set by a
zero crossing detector and reset by external RC. This IC features protection against overcurrent, over-voltage and over-temperature. This IC is well suited for several kinds of dimmer
and timer applications.
2. Features
q
q
q
q
q
q
q
q
q
q
q
q
Supply voltage: 10VDC...12VDC
Power-on start schematic
Load power between 20W...1000W (depends on external MOSFETs)
Flexible soft start function
Zero-crossing detection
Inputs for protection functions (over-current, over-voltage and over-temperature)
Low bias current
Protective shut down function
LED status indication for output status at all times
Ambient temperature range: 0°C...85°C
Package: SOP14 – Body size: 8.65mm x 3.90mm x 1.45mm
RoHS compliant
3. Application
The AMG-LI080 is suitable for timing, PWM and dimmer applications. It is most suitable for
incandescent and halogen lamp dimmers.
AMG-LI080
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
3.1. Application Circuit Example
OS
VDD
Softstart
Protect
Latch
Power on
IOUT
CS
CS
OC1
D4
~
OC2
D3
OV
NTC
t°
OT
LI080
OUT
IR
TRES
Time
Reset
Q
R
FF
INZ
Mono
FF
Zero
Detect
S
QB
GND
CM1
CM2
Figure 1: Example application circuit
AMG-LI080
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
Table of Contents
1.Functional Description...........................................................................................................1
2.Features.................................................................................................................................1
3.Application.............................................................................................................................1
3.1.Application Circuit Example......................................................................................................2
4.Block Diagram.......................................................................................................................4
5.Block Descriptions.................................................................................................................5
5.1.Zero Crossing ..........................................................................................................................5
5.2.Time Reset...............................................................................................................................5
5.3.Gate Driver + Output Latch......................................................................................................5
5.4.Protection Logic........................................................................................................................5
5.5.Soft Start...................................................................................................................................5
6.Pinning...................................................................................................................................6
7.Pin description.......................................................................................................................7
8.Function Table........................................................................................................................8
9.Absolute Maximum Ratings...................................................................................................8
10.Electrical Characteristics......................................................................................................9
10.1.Operational Range.................................................................................................................9
10.2.DC Characteristics.................................................................................................................9
10.3.AC Characteristics................................................................................................................10
11.Diagrams............................................................................................................................11
11.1.Electrical Diagrams...............................................................................................................11
11.2.Pulse Diagrams....................................................................................................................18
11.3.Start Up Diagrams................................................................................................................19
11.4.Soft Start Diagrams..............................................................................................................20
11.5.Error Function Diagrams......................................................................................................21
12.IC-Package........................................................................................................................22
13.IC-Marking.........................................................................................................................22
14.Ordering Information..........................................................................................................22
15.Notes and Cautions...........................................................................................................23
15.1.ESD Protection.....................................................................................................................23
15.2.Storage conditions................................................................................................................23
16.Disclaimer..........................................................................................................................23
17.Contact Information............................................................................................................24
AMG-LI080
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
4. Block Diagram
OS
VDD
Softstart
Protect
Latch
Power on
IOUT
CS
OC1
OC2
OV
OT
LI080
OUT
IR
TRES
Time
Reset
Q
R
FF
INZ
Mono
FF
Zero
Detect
S
QB
GND
CM1
CM2
Figure 2: LI080 Block Diagram
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
5. Block Descriptions
5.1. Zero Crossing
Detects the Zero Crossing of the AC sine wave. The INZ input is connected to the rectified
mains with a resistor divider. For noise suppression, the INZ input should also be connected to
GND with a capacitor. This capacitor will cause a time delay between the actual zero crossing
and the detection. Bigger capacitors will cause a longer time delay than smaller ones. This
time delay may or may not affect the function.
5.2. Time Reset
Determines the on time of the output, thus the duty cycle, or the time of the reverse phase cut.
The Time Reset is triggered by the zero crossing. The Time Reset is reset by an external R
and C, which determines the time to reset.
5.3. Gate Driver + Output Latch
Supplies the gate charge for the external MOSFETs. Continuous current capability is around
10mA. The output latch is set by the Zero Crossing and reset by the Time Reset.
5.4. Protection Logic
The IC has 3 sense inputs for over voltage, over current and over temperature protection.
OVP: Over Voltage Protection
OTP: Over Temperature Protection
OCP: Over Current Protection
These sense inputs have an internal pull up and are connected to a comparator. The
comparator thresholds are set according to their dedicated protection function, but
nevertheless, they can be used for something else. The sense inputs all need some additional
external circuitry to enable the protection. Please refer to the example application diagram or
the application note. If a specific protection function is not needed, the corresponding sense
input should be connected to GND. All 3 protection comparators individually set a latch when
the threshold is reached. When set, the latch will inhibit the Zero Crossing and thus the output
of the device and activate the LED driver. The protective latch is reset at power up. As such
the protection functions work like a recoverable fuse.
5.5. Soft Start
Soft Start is in essence adjustable current source. With an external C, the time to reach max.
current can be adjusted. In that way, a soft start function can be built. Please refer to the
example application diagram or the application note. In case, a 1-10V analog signal shall
control the dimmer, it can be connected to the CS pin.
AMG-LI080
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
6. Pinning
PIN#
Symbol
Description
1
VDD
Supply voltage
2
CS
Capacitor soft start
3
IOUT
Current source soft start
4
TRES
Input dimming time reset
5
INZ
Input detection zero crossing
6
CM1
Connection 1 capacitor mono-flop zero detect
7
GND
Signal ground
8
CM2
Connection 2 capacitor mono-flop zero detect
9
OT
Input over temperature
10
OV
Input over voltage
11
OC2
Input 2 over current
12
OC1
Input 1 over current
13
OUT
Output gate driver
14
OS
Output status
1
14
OS
CS
OUT
IOUT
OC1
LI080
VDD
TRES
OC2
INZ
OV
CM1
OT
GND
CM2
7
8
Figure 3: SOP14 Pinout
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
7. Pin description
VDD
q Power supply voltage, supply voltage for all internal circuits
q external block capacitor to be connected between this pin and ground
GND
q Supply voltage ground, ground reference point for all thresholds
OUT
q Gate Driver output
TRES
q Threshold input, to be connected with a cap and source resistance to set the reset time
INZ
q Zero crossing detection input
q Set the duty cycle when the voltage goes through zero
IOUT
q Current source output for soft start
CS
q Input, connected to a capacitor setting the soft start time
CM1, CM2
q Input, connection 1 and 2 for a cap, setting the pulse width via internal monoflop
OC1, OC2
q Current sense input for OCP, connection to external shunt resistors
q On over current conditions, the output OUT and status OS are both pulled low
OV
q Over voltage protection input, connected to an external diode with voltage divider
q On over voltage conditions, the output OUT and status OS are pulled low
OT
q Over temperature protection input, connected to an external NTC with voltage divider
q On over temperature conditions, the output OUT and status OS are pulled low
OS
q Output status indicator
q On over current, voltage and temperature conditions this output is pulled low
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
8. Function Table
# Function
Inputs
Outputs
1
OC1
OC2
OV
OT
OUT
OS
2 Normal
L
L
L
L
High Gate Voltage
H
3 Error Detection OC1
H
X
X
X
Low Gate Voltage
L
4 Error Detection OC2
X
H
X
X
Low Gate Voltage
L
5 Error Detection OV
X
X
H
X
Low Gate Voltage
L
6 Error Detection OT
X
X
X
H
Low Gate Voltage
L
H – High, L – Low, X – any input state
9. Absolute Maximum Ratings
The Absolute Maximum Ratings may not be exceeded under any circumstances.
#
Symbol
Parameter
Min
Max
Unit
1
VDD
Supply Voltage
-0.3
15
V
2
VOUT
Output Voltage OUT
(IOUTmax=±10mA)
-0.3
VDD
V
3
VOS
Output Status OS
(IOSmax=3mA)
-0.3
VDD
V
4
VTRES
Input Voltage TRES
(ITRESmax=10mA)
-0.3
VDD
V
5
VIOUT
Input Voltage IOUT
(IIOUTmax=-1mA)
-0.3
VDD
V
6
VCS
Input Voltage CS
-13.5
VDD
V
7.1
VINCM1
Input Voltage CM1
(ICM1min=-1mA)
-0.3
VDD
V
7.2
VINCM2
Input Voltage CM2
(ICM2min=1mA)
-0.3
VDD
V
8
VOC, OV, OT
Input Voltage OC1, OC2, OV, OT
-0.3
1
V
9
VINZ
Input Voltage INZ
-0.3
6
V
10
IOUT
Current Output OUT
-10
10
mA
11
IO+
Output H short circuit pulsed current (Vout=0V,
PW<1us)
-150
0
mA
12
IO-
Output L short circuit pulsed current (Vout=12V,
PW<1us)
0
150
mA
13
ITRES
Input Current TRES
0
10
mA
14
ICM1
Input Current ICM1
-1
0
mA
15
ICM2
Input Current ICM2
0
1
mA
16
IOS
Output Current Status OS
0
3
mA
17
IINZ
Input Current INZ
2
mA
18
IIOUT
Output Current IOUT
0
mA
AMG-LI080
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
#
Symbol
Parameter
19
Ptot
20
Min
Max
Unit
Total Power Dissipation
250
mW
PTOTG
Total Power Dissipation Gate Control
100
mW
21
VESD1)
ESD – Input Protection Voltage VDD, TRES, INZ,
CH, CM1, CM2
-2000
2000
V
22
Tstg
ESD – Input Protection Voltage OC1, OC2, OV, OT,
-900
900
V
23
Tj
ESD – Output Protection Voltage OUT, OS,CS
-900
900
V
Notes:
1)
VESD according to Human Body Model, MIL-STD-883D, Method 3015.7, Class 2
2)
Tj = Rthjc * Ptot + Tamb
10. Electrical Characteristics
10.1. Operational Range
#
Symbol
Parameter
Min
Max
Unit
1
VDD
Supply Voltage
10
12
V
2
Tamb
Ambient Temperature Range
0
70
°C
10.2. DC Characteristics
DC characteristics contain the spread of values guaranteed within the specified supply voltage and
temperature range and the technology process parameter range unless otherwise specified.
Tj = 25°C for typical values
#
Symbol Parameter
Min
Typ
Max
Unit
1
IDDL
Current Consumption
VOUT = Low
VDD =12V
VINZ = 1V
-
0.8
1.0
mA
2
IDDH
Current Consumption
VOUT = High
VDD =12V
VINZ = 1V
-
0.5
0.8
mA
3
IDDL_Error
Current Consumption Error-Mode
VOUT = Low
VDD =12V
VINZ = 1V
VOT
1V
-
1.4
1.9
mA
4
VTRES
Threshold Voltage Input TRES
VDD =12V
6.5
7.5
8.5
V
5
VPON
Threshold Voltage Power on
VDD =12V
8.0
9.1
9.9
V
6
VTH OC1, 2 Threshold Voltage OC1, 2
VDD =12V
0.55
0.75
0.85
V
7
VTH OV
Threshold Voltage OV
VDD =12V
0.55
0.75
0.85
V
8
VTH OT
Threshold Voltage OT
VDD =12V
0.55
0.75
0.85
V
AMG-LI080
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Conditions
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
#
Symbol Parameter
Min
Typ
Max
Unit
9
VOUTH
Output Voltage High OUT
-IOUT = 6mA
VDD =12V
7.5
9.2
-
V
10 VOUTH
Output Voltage High OUT
-IOUT = 10µA
VDD =12V
7.5
10.6
-
V
11 VOUTL
Output Voltage Low OUT
IOUT = 6mA
VDD =12V
-
0.2
0.55
V
12 VOUTL
Output Voltage Low OUT
IOUT = 10µA
VDD =12V
-
0.1
0.55
V
13 VOSL
Output Voltage Low Error-Mode OS IOS= 2mA
VDD =12V
-
0.2
0.55
V
Conditions
10.3. AC Characteristics
AC characteristics contain the spread of values guaranteed within the specified supply voltage and
temperature range and the technology process parameter range unless otherwise specified.
Tj = 25°C for typical values
Symbol
Parameter
Conditions
Typ
Max Unit
tr OUT
Turn-on rise time
CL = 1.5nF
VDD =12V
200
500
ns
Tf OUT
Turn-off fall time
CL = 1.5nF
VDD =12V
200
500
ns
tSoft c
Soft Start Time cold
CCS = 4.7µF,
max. Full Power
PF= 0.95
VDD =12V
1.9
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
11. Diagrams
11.1. Electrical Diagrams
IDD_zero_signal = f (VDD,Ta)
650
600
-10°C
550
IDD_zero (uA)
25°C
500
450
55°C
400
85°C
350
300
250
10
11
12
13
14
VDD (V)
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
IDDH = f (VDD,Ta)
800
750
-10°C
700
650
IDDH (uA)
25°C
600
550
55°C
500
85°C
450
400
350
300
10
11
12
13
14
VDD (V)
IDDL = f (VDD,Ta)
1000
-10°C
900
25°C
IDDL (uA)
800
55°C
700
85°C
600
500
400
300
10
11
12
13
14
VDD (V)
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
IDDL_Error f (VDD,Ta)
2000
1900
-10°C
1800
IDDL_Error (uA)
1700
1600
25°C
1500
1400
55°C
1300
1200
85°C
1100
1000
900
800
10
11
12
13
14
VDD (V)
VTres = f (VDD,Ta)
8,5
-10°C
25°C
8
55°C
85°C
VTres (V)
7,5
7
6,5
6
10
11
12
13
14
VDD ( V )
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
VINZ_Threshold = f (VDD,Ta)
800
-10°C
750
VINZ_Th (mV)
25°C
700
55°C
650
85°C
600
10
11
12
13
14
VDD (V)
VTH
850
-10°C
800
VTH (mV)
750
25°C
700
55°C
650
600
85°C
550
10
AMG-LI080
11
Revision: B
12
VDD (V)
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
soft_start_time_cold = f (VDD,Ta)
3
85°C
capacitor CS = 4,7uF
2,8
soft_start_time (s)
2,6
55°C
2,4
2,2
25°C
2
1,8
-10°C
1,6
1,4
10
11
12
13
14
VDD (V)
power = f(VDD,Ta)
97
85°
96,5
55°
C
25°
96
VDD=12V=95%
power (%)
95,5
-10°C
95
94,5
94
93,5
93
10
11
12
13
14
VDD (V)
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
pow e r f = (Ta) VDD=12V
96
95,8
95,6
power (%)
95,4
95,2
95
94,8
94,6
94,4
94,2
94
-20
-10
0
10
20
30
40
50
60
70
80
90
50
60
70
80
90
Ta (°C)
VPON = f (Ta)
9,35
9,3
9,25
VPON ( V )
9,2
9,15
9,1
9,05
9
8,95
8,9
8,85
8,8
-20
-10
0
10
20
30
40
Ta ( °C )
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
VPOFF = f ( Ta)
VPOFF ( V )
8,2
8,1
8
-20
-10
0
10
20
30
Ta
AMG-LI080
Revision: B
40
50
60
70
80
90
( °C )
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
11.2. Pulse Diagrams
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
11.3. Start Up Diagrams
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
11.4. Soft Start Diagrams
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
11.5. Error Function Diagrams
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
12. IC-Package
12.1. SOP14 – Small Outline Package, 14 leads, RoHS compliant
A1
D
w
b
L
H
E
e
A
Small Outline Package (SOP)
Package
SOP 14
nom
D
E
H
A
A1
e
b
L
w
8,65
3,90
6,00
1,75
0,15
1,27
0,41
0,72
4°
Dimension : mm
13. IC-Marking
14. Ordering Information
AMG-LI080-ISP14U
shipment in tubes
AMG-LI080-ISP14R
shipment in Tape & Reel
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
15. Notes and Cautions
15.1. ESD Protection
The Requirements for Handling Electrostatic Discharge Sensitive Devices are described in the
JEDEC standard JESD625-A. Please note the following recommendations:
q When handling the device, operators must be grounded by wearing a for the purpose
designed grounded wrist strap with at least 1M resistance and direct skin contact.
q Operators must at all times wear ESD protective shoes or the area should be
surrounded by for ESD protection intended floor mats.
q Opening of the protective ESD package that the device is delivered in must only occur at
a properly equipped ESD workbench. The tape with which the package is held together
must be cut with a sharp cutting tool, never pulled or ripped off.
q Any unnecessary contact with the device or any unprotected conductive points should be
avoided.
q Work only with qualified and grounded tools, measuring equipment, casing and
workbenches.
q Outside properly protected ESD-areas the device or any electronic assembly that it may
be part of should always be transported in EGB/ESD shielded packaging.
15.2. Storage conditions
The AMG-LI080 corresponds to moisture sensitivity classification ML2 , according to JEDEC
standard J-STD-020, and should be handled and stored according to J-STD-033.
16. Disclaimer
Information given in this data sheet is believed to be accurate and reliable. However, no
responsibility is assumed for the consequences of its use nor for any infringement of patents
or other rights of third parties that may result from its use. alpha microelectronics gmbh does
not authorize or warrant any of its products for use in life support system equipment.
The values stated in Absolute Maximum Ratings may under no circumstances be exceeded.
No warranty is given for use in life support systems or medical equipment without the specific
written consent of alpha microelectronics gmbh. For questions regarding the application
please contact the publisher.
The declared data are only a description of the product. They are not guaranteed properties
as defined by law. Examples are given without obligations and cannot give rise to any liability.
Reprinting of this data sheet – or any part of it – is not allowed without the license of the
publisher. Data sheets are subject to change without any notice.
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AMG-LI080
Timer/Dimmer with Gate Driver, Zero Detection & Protection
17. Contact Information
This data sheet is published by alpha microelectronics gmbh. To order samples or inquire
information please contact:
alpha microelectronics gmbh
Im Technologiepark 1
15236 Frankfurt (Oder)
Germany
[email protected]
www.alpha-microelectronics.de
+49-335-557-1750 (telephone)
+49-335-557-1759 (fax)
© All rights reserved.
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