ILD1150 [INFINEON]
LED Driver,;
| 型号： | ILD1150 |
| 厂家： | 
Infineon |
| 描述： | LED Driver, 驱动 接口集成电路 |
| 文件： | 总34页 (文件大小：1616K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ILD1150
Multitopology High Power LED DC/DC
Controller IC for Industrial Applications
Datasheet
Rev. 1.1, 2012-04-11
ILD1150
Table of Contents
Table of Contents
1
2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3
3.1
3.2
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1
4.2
4.3
5
5.1
5.2
Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6
6.1
6.2
Oscillator and Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7
7.1
7.2
Enable and Dimming Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8
8.1
8.2
Linear Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9
9.1
9.2
Protection and Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
10
Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10.1
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11
12
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Datasheet
2
Rev. 1.1, 2012-04-11
Multitopology High Power LED DC/DC Controller IC for
Industrial Applications
ILD1150
ILD1150
1
Overview
Features
•
•
•
Wide Input Voltage Range from 4.75 V to 45 V
Constant Current or Constant Voltage Regulation
Drives LEDs in Boost, Buck, Buck-Boost, SEPIC and Flyback
Topology
•
•
•
•
•
•
•
•
•
•
•
•
•
Very Low Shutdown Current: IQ< 10 µA
Flexible Switching Frequency Range, 100 kHz to 500 kHz
Synchronization with external clock source
Output Open Circuit Diagnostic Output
PWM Dimming
PG-SSOP-14
Internal Soft Start
300mV High Side Current Sense to ensure highest flexibility and LED current accuracy
Internal 5 V Low Drop Out Voltage Regulator
Wide LED current range via simple adaptation of external components
Available in a small thermally enhanced PG-SSOP-14 package
Output Overvoltage Protection
Over Temperature Shutdown
Green Product (RoHS) Compliant
Description
The ILD1150 is a Multitopology High Power DC/DC Controller IC with built in protection features . The main function
of this device is to regulate a constant LED current. The constant current regulation is especially beneficial for LED
color accuracy and longer lifetime. The controller concept of the ILD1150 allows a multi-purpose usage such as Boost,
Buck, Buck-Boost, SEPIC and Flyback configuration with various load current levels by simply adjusting the external
components. The ILD1150 has a PWM output for dimming a LED load. The diagnostics are communicated on a status
output (pin ST) to indicate a fault condition such as an LED open circuit. The switching frequency is adjustable in the
range of 100 kHz to 500 kHz and can be synchronized to an external clock source. The ILD1150 features an enable
function reducing the shut-down current consumption to <10 µA. The current mode regulation scheme of this device
provides a stable regulation loop maintained by small external compensation components. The integrated soft-start
feature limits the current peak as well as voltage overshoot at start-up. This IC provides protection functions such as
output overvoltage protection and overtemperature shutdown.
Type
Package
Marking
ILD1150
PG-SSOP-14
ILD1150
Datasheet
3
Rev. 1.1, 2012-04-11
ILD1150
Overview
Applications
•
•
•
•
•
LED Controller for Industrial Applications
Universal Constant Current and Voltage Source
General Illumination e.g. Halogen Replacement
Residential Architectural and Industrial Commercial Lighting for in- and outdoor
Signal and Marker Lights for Orientation or Navigation (e.g. steps, exit ways, etc.)
For automotive and transportation applications, please refer to the Infineon® Auto LED products.
Datasheet
4
Rev. 1.1, 2012-04-11
ILD1150
Block Diagram
2
Block Diagram
IN
IVCC
SWO
14
LDO
1
Power On
Reset
Internal
Supply
EN_INT/
PWM_INT
EN / PWMI
On/Off
Logic
13
Power Switch
Gate Driver
Soft
Start
2
FREQ/
Oscillator
PWM
Generator
SYNC 11
SWCS
SGND
Slope
Comp.
4
Switch Current
Error Amplifier
3
Leading Edge
Blanking
Thermal
Protection
ST
Diagnostics
Logic
OVFB
FBH
10
Over Volage
Protection
9
Open Load
Detection
6
7
COMP
Feedback Voltage
Error Amplifier
8
FBL
PWMO
EN_INT/
PWM_INT
Dimming Switch
Gate Driver
5
12
BlockDiagram .vsd
GND
Figure 1
Block Diagram
Datasheet
5
Rev. 1.1, 2012-04-11
ILD1150
Pin Configuration
3
Pin Configuration
3.1
Pin Assignment
1
14
13
12
11
10
9
IVCC
SWO
IN
EN/PWMI
GND
2
3
4
5
6
7
SGND
SWCS
FREQ/SYNC
ST
PWMO
FBH
OVFB
EP
FBL
8
COMP
Figure 2
Pin Configuration
3.2
Pin Definitions and Functions
Pin
Symbol
Function
1
IVCC
Internal LDO Output;
Used for internal biasing and gate drive. Bypass with external capacitor. Pin must
not left open.
2
3
4
5
6
7
8
SWO
SGND
SWCS
PWMO
FBH
Switch Output;
Connect to gate of external switching MOSFET
Current Sense Ground;
Ground return for current sense switch
Current Sense Input;
Detects the peak current through switch
PWM Dimming Output;
Connect to gate of external MOSFET
Voltage Feedback Positive;
Non inverting Input (+)
FBL
Voltage Feedback Negative;
Inverting Input (-)
COMP
Compensation Input;
Connect R and C network to pin for stability
Datasheet
6
Rev. 1.1, 2012-04-11
ILD1150
Pin Configuration
Pin
Symbol
Function
9
OVFB
Output Overvoltage Protection Feedback;
Connect to resistive voltage divider to set overvoltage threshold.
10
11
ST
Status Output;
Open drain diagnostic output to indicate fault condition.
Connect pull up resistor to pin.
FREQ / SYNC
Frequency Select or Synchronization Input;
Connect external resistor to GND to set frequency.
Or apply external clock signal for synchronization within frequency capture range.
12
13
14
EP
GND
Ground;
Connect to system ground.
EN / PWMI
IN
Enable or PWM Input;
Apply logic high signal to enable device or PWM signal for dimming LED.
Supply Input;
Supply for internal biasing.
Exposed Pad;
Connect to external heatspreading Cu area with electrically GND (e.g. inner GND
layer of multilayer PCB with thermal vias)
Datasheet
7
Rev. 1.1, 2012-04-11
ILD1150
General Product Characteristics
4
General Product Characteristics
4.1
Absolute Maximum Ratings
Absolute Maximum Ratings1)
Tj = -40 ⋅C to +125 ⋅C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Max.
Unit Conditions
Min.
Voltages
4.1.1
IN
VIN
-0.3
-40
45
45
5.5
45
45
V
V
V
V
V
V
Supply Input
4.1.2
4.1.3
4.1.4
4.1.5
EN / PWMI
Enable or PWM Input
VEN
FBH-FBL;
Feedback Error Amplifier Differential
VFBH-VFBL
VFBH
VFBL
-5.5
-0.3
-0.3
FBH;
Feedback Error Amplifier Positive Input
FBL
Feedback Error Amplifier Negative Input
4.1.6
OVFB
VOVP
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
5.5
6.2
5.5
6.2
5.5
6.2
0.3
Over Voltage Feedback Input
4.1.7
V
V
V
V
V
V
t < 10s
t < 10s
t < 10s
4.1.8
SWCS
VSWCS
VSWO
VSGND
VCOMP
Switch Current Sense Input
4.1.9
4.1.10
4.1.11
4.1.12
SWO
Switch Gate Drive Output
SGND
Current Sense Switch GND
4.1.13
4.1.14
4.1.15
4.1.16
4.1.17
4.1.18
4.1.19
4.1.20
4.1.21
4.1.22
COMP
Compensation Input
-0.3
-0.3
5.5
6.2
5.5
6.2
5.5
6.2
45
V
V
t < 10s
t < 10s
t < 10s
FREQ / SYNC; Frequency and
Synchronization Input
VFREQ / SYNC -0.3
V
-0.3
V
PWMO
PWM Dimming Output
VPWMO
-0.3
-0.3
-0.3
-5
V
V
ST
VST
IST
V
Diagnostic Status Output
5
mA
V
IVCC
VIVCC
-0.3
-0.3
5.5
6.2
Internal Linear Voltage Regulator Output
V
t < 10s
Temperatures
4.1.23
4.1.24
Junction Temperature
Storage Temperature
Tj
-40
-55
150
150
°C
°C
–
–
Tstg
ESD Susceptibility
4.1.25
ESD Resistivity to GND
VESD,HBM
-2
2
kV
HBM2)
Datasheet
8
Rev. 1.1, 2012-04-11
ILD1150
General Product Characteristics
Absolute Maximum Ratings1)
Tj = -40 ⋅C to +125 ⋅C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Max.
Unit Conditions
Min.
-500
-750
4.1.26
4.1.27
ESD Resistivity to GND
VESD,CDM
500
V
V
CDM3)
CDM3)
ESD Resistivity Pin 1, 7, 8, 14 (corner
pins) to GND
VESD,CDM,C
750
1) Not subject to production test, specified by design.
2) ESD susceptibility, Human Body Model “HBM” according to ANSI/ESDA/JEDEC JS-001 (1.5kΩ, 100pF)
3) ESD susceptibility, Charged Device Model “CDM” ESDA STM5.3.1 or ANSI/ESD S.5.3.1
Note:Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Note:Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are
not designed for continuous repetitive operation.
4.2
Functional Range
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
4.75
4.5
Max.
45
4.2.1
4.2.2
Supply Voltage Input
VIN
V
V
V
IVCC > VIVCC,RTH,d
Feedback Voltage Input
VFBH;
VFBL
45
–
4.2.3
Junction Temperature
Tj
-40
125
°C
–
Note:Within the functional range the IC operates as described in the circuit description. The electrical
characteristics are specified within the conditions given in the related electrical characteristics table.
4.3
Thermal Resistance
Note:This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, go
to www.jedec.org.
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
Typ.
10
Max.
4.3.1
4.3.2
4.3.3
4.3.4
Junction to Case 1) 2)
Junction to Ambient1) 3)
RthJC
RthJA
RthJA
RthJA
–
–
–
–
–
–
–
–
K/W
K/W
K/W
K/W
47
2s2p
54
1s0p + 600 mm2
1s0p + 300 mm2
64
1) Not subject to production test, specified by design.
2) Specified RthJC value is simulated at natural convection on a cold plate setup (all pins and exposed pad are fixed to ambient
temperature). Ta=25°C, IC is dissipating 1W.
3) Specified RthJA value is according to JEDEC 2s2p (JESD 51-7) + (JESD 51-5) and JEDEC 1s0p (JESD 51-3) + heatsink
area at natural convection on FR4 board; The device was simulated on a 76.2 x 114.3 x 1.5mm board. The 2s2p board has
2 outer copper layers (2 x 70µm Cu) and 2 inner copper layers (2 x 35µm Cu), A thermal via (diameter = 0.3mm and 25µm
plating) array was applied under the exposed pad and connected the first outer layer (top) to the first inner layer and second
outer layer (bottom) of the JEDEC PCB. Ta=25°C, IC is dissipating 1W.
Datasheet
9
Rev. 1.1, 2012-04-11
ILD1150
Regulator
5
Regulator
5.1
Description
The ILD1150 regulator is suitable for Boost, Buck, Buck-Boost, SEPIC and Flyback configurations. The constant
output current is especially useful for light emitting diode (LED) applications. The multitopology regulator function
is implemented by a pulse width modulated (PWM) current mode controller.
The PWM current mode controller uses the peak current through the external power switch and error in the output
current to determine the appropriate pulse width duty cycle (on time) for constant output current. The current mode
controller it provides a PWM signal to an internal gate driver which then outputs the same PWM signal to external
n-channel enhancement mode metal oxide field effect transistor (MOSFET) power switch.
The current mode controller also has built-in slope compensation to prevent sub-harmonic oscillations which is a
characteristic of current mode controllers operating at high duty cycles (>50% duty).
An additional built-in feature is an integrated soft start that limits the current through the inductor and external
power switch during initialization. The soft start function gradually increases the inductor and switch current over
1 ms (typical) to minimize potential overvoltage at the output.
OV FB
H when
OVFB >1.25V
OVFB
VRef
=
1.25V
High when
UV IVCC
IVCC < 4.0V
COMP
FBH
VRef
4.0V
=
NOR
Current
Comp
Gate Driver
Supply
x1
IVCC
SWO
EA
Output Stage
OFF when
Low
gmEA
High when
lEA - ISLOPE - ICS > 0
>
1
INV
R
S
IEA
OFF
when H
FBL
Q
Q
1
&
&
Gate
Driver
Low when
R
VRef
0.3V
=
Soft start
Tj > 175 °C
Q
&
&
Current
Sense
PWM-FF
Oscillator
Slope Comp
I
SWCS
SGND
NAND 2
S
t
Q
FREQ/
SYNC
ICS
&
Error-FF
Clock
Figure 3
Boost Regulator Block Diagram
Datasheet
10
Rev. 1.1, 2012-04-11
ILD1150
Regulator
5.2
Electrical Characteristics
All parameters have been tested at 25°C, unless otherwise specified.
1)
VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless
otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit Conditions
Min.
Typ.
Max.
Regulator:
5.2.1
5.2.2
Feedback Reference Voltage
VREF
0.28
–
0.30
–
0.32
0.15
V
VREF= VFBH -VFBL
Voltage Line Regulation
Δ
VREF
%/V VBO= 30 V;
/ΔVIN
I
BO = 500 mA
Figure 25
BO = 30V;
BO = 100 to 500 mA
Figure 25
5.2.3
5.2.4
Voltage Load Regulation
(ΔVREF
–
–
5
%/A
mV
V
I
/
VREF
)
/ΔIBO
Switch Peak Over Current
Threshold
VSWCS
130
150
170
V
V
FBH = VFBL = 5 V
COMP = 3.5V
5.2.5
5.2.6
5.2.7
Maximum Duty Cycle
Maximum Duty Cycle
Soft Start Ramp
DMAX,fixed 90
DMAX,sync 88
93
95
%
%
µs
Fixed frequency mode
Synchronization mode
–
–
tSS
350
1000
1500
V
FB rising from 5% to
95% of VFB, typ.
5.2.8
5.2.9
Feedback Input Current
IFBx
-10
10
-50
50
-100
100
µA
µA
V
V
FBH - VFBL = 0.3 V
Switch Current Sense Input
Current
ISWCS
SWCS = 150 mV
5.2.10 Input Undervoltage Shutdown
5.2.11 Input Voltage Startup
VIN,off
VIN,on
3.75
–
–
–
–
V
V
VIN decreasing
VIN increasing
4.75
Gate Driver for external Switch
5.2.12 Gate Driver Peak Sourcing
Current1)
ISWO,SRC
ISWO,SNK
tR,SWO
–
380
550
30
20
–
–
mA
mA
ns
ns
V
V
V
SWO = 3.5V
SWO = 1.5V
5.2.13 Gate Driver Peak Sinking
Current1)
–
–
5.2.14 Gate Driver Output Rise Time
5.2.15 Gate Driver Output Fall Time
5.2.16 Gate Driver Output Voltage1)
–
60
40
5.5
C
V
L,SWO = 3.3nF;
SWO = 1V to 4V
L,SWO = 3.3nF;
SWO = 1V to 4V
tF,SWO
–
C
V
VSWO
4.5
C
L,SWO = 3.3nF;
1) Not subject to production test, specified by design
Datasheet
11
Rev. 1.1, 2012-04-11
ILD1150
Oscillator and Synchronization
6
Oscillator and Synchronization
6.1
Description
The internal oscillator is used to determine the switching frequency of the multitopology regulator. The switching
frequency can be selected from 100 kHz to 500 kHz with an external resistor to GND. To set the switching
frequency with an external resistor the following formula can be applied.
1
s
R FREQ
=
−
3.5 × 10 3
[Ω
])
[Ω ]
141 × 10 −12 [Ω ]
)
×
f FREQ [ ]
1
s
(
(
)
In addition, the oscillator is capable of changing from the frequency set by the external resistor to a synchronized
frequency from an external clock source. If an external clock source is provided on the pin FREQ/SYNC, then the
internal oscillator synchronizes to this external clock frequency and the multitopology regulator switches at the
synchronized frequency. The synchronization frequency capture range is 250 kHz to 500 kHz.
FREQ
/ SYNC
Oscillator
PWM
Logic
Gate
Driver
SWO
Multiplexer
Clock Frequency
Detector
VCLK
RFREQ
Oscillator_BlkDiag_SyncFixedMode .vsd
Figure 4
Oscillator and Synchronization Block Diagram and Simplified Application Circuit
TSYNC = 1 / fSYNC
tSYNC,TR
tSYNC,TR
tSYNC,PWH
VSYNC
4.5 V
VSYNC,H
VSYNC,L
0.5 V
t
Oscillator_Timing.svg
Figure 5
Synchronization Timing Diagram
Datasheet
12
Rev. 1.1, 2012-04-11
ILD1150
Oscillator and Synchronization
6.2
Electrical Characteristics
All parameters have been tested at 25°C, unless otherwise specified.
VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless
otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
Typ.
Max.
Oscillator:
6.2.1
6.2.2
Oscillator Frequency
fFREQ
fFREQ
250
100
300
–
350
500
kHz
kHz
RFREQ = 20kΩ
Oscillator Frequency
Adjustment Range
17% internal tolerance +
external resistor
tolerance
6.2.3
6.2.4
FREQ / SYNC Supply
Current
IFREQ
–
–
-700
1.32
µA
V
V
FREQ = 0 V
Frequency Voltage
VFREQ
1.16
1.24
fFREQ = 100 kHz
Synchronization
6.2.5
6.2.6
6.2.7
6.2.8
Synchronization Frequency fSYNC
Capture Range
250
3.0
–
–
–
–
–
500
–
kHz
V
–
1)
Synchronization Signal
High Logic Level Valid
VSYNC,H
VSYNC,L
1)
1)
Synchronization Signal
Low Logic Level Valid
0.8
–
V
Synchronization Signal
Logic High Pulse Width
tSYNC,PWH 200
ns
1) Synchronization of external PWM ON signal to falling edge
Datasheet
13
Rev. 1.1, 2012-04-11
ILD1150
Oscillator and Synchronization
Typical Performance Characteristics of Oscillator
Switching Frequency fSW versus
Frequency Select Resistor to GND RFREQ/SYNC
600
500
400
Tj = 25 °C
300
200
100
0
0
10 20 30 40 50 60 70 80
FREQ/SYNC [kohm]
R
Datasheet
14
Rev. 1.1, 2012-04-11
ILD1150
Enable and Dimming Function
7
Enable and Dimming Function
7.1
Description
The enable function powers on or off the device. A valid logic low signal on enable pin EN/PWMI powers off the
device and current consumption is less than 10 µA. A valid logic high enable signal on enable pin EN/PWMI
powers on the device. The enable function features an integrated pull down resistor which ensures that the IC is
shut down and the power switch is off in case the enable pin EN is left open.
In addition to the enable function described above, the EN/PWMI pin detects a pulse width modulated (PWM) input
signal that is fed through to an internal gate driver. The internal gate driver outputs the same PWM signal on the
PWMO pin to an external n-channel enhancement mode MOSFET for PWM dimming an LED load. PWM dimming
an LED is a commonly practiced dimming method to prevent color shift in an LED light source. Moreover the PWM
output function may also be used for to drive other types of loads besides LED.
The enable and PWM input function share the same pin. Therefore a valid logic low signal at the EN/PWMI pin
needs to differentiate between an enable power off signal or an PWM low signal. The device differentiates between
an enable off command and PWM dimming signal by requiring the signal at the EN/PWMI pin to stay low for a
minimum of 8 ms.
IN
14
Enable
Enable
PWMI
IVCC
1
2
5
LDO
EN / PWMI
SWO
Enable / PWMI
Logic
Gate
Driver
13
Microcontroller
PWMO
Gate
Driver
EN_PWMI_BlockDiagram.svg
Figure 6
Block Diagram and Simplified Application Circuit Enable and LED Dimming
Datasheet
15
Rev. 1.1, 2012-04-11
ILD1150
Enable and Dimming Function
tEN,START
TPWMI
tPWMI,H
tEN,OFF,DEL
VEN/PWMI
VEN/PWMI,ON
VEN/PWMI,OFF
t
VIVCC
VIVCC,ON
VIVCC,RTH
t
t
t
VPWMO
1
fFREQ
TFREQ
=
VSWO
Power Off Delay Time
Power On
Power Off
Normal
SWO On
PWMO On
Dim
Normal
SWO On
PWMO On
Dim
Normal
SWO On
PWMO On
Iq < 10 μA
PWMO Off
SWO Off
PWMO Off
SWO Off
EN_PWMI_Timing.svg
Figure 7
Timing Diagram Enable and LED Dimming
7.2
Electrical Characteristics
All parameters have been tested at 25°C, unless otherwise specified.
VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless
otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
VEN/PWMI,ON 3.0
VEN/PWMI,OFF
Typ.
Max.
Enable/PWM Input:
7.2.1
7.2.2
7.2.3
Enable/PWMI
Turn On Threshold
–
V
–
–
–
Enable/PWMI
Turn Off Threshold
–
–
0.8
V
Enable/PWMI Hysteresis VEN/PWMI,HYS 50
200
400
mV
Datasheet
16
Rev. 1.1, 2012-04-11
ILD1150
Enable and Dimming Function
VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless
otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
Typ.
Max.
7.2.4
7.2.5
7.2.6
Enable/PWMI
High Input Current
IEN/PWMI,H
IEN/PWMI,L
tEN,OFF,DEL
–
–
30
µA
µA
ms
V
V
–
EN/PWMI = 16.0 V
EN/PWMI = 0.5 V
Enable/PWMI
Low Input Current
–
8
0.1
10
1
Enable Turn Off
Delay Time
12
7.2.7
7.2.8
PWMI Min Duty Time
Enable Startup Time
tPWMI,H
4
–
–
–
–
µs
µs
tEN,START
100
Gate Driver for Dimming Switch:
7.2.9
PWMO Gate Driver Peak IPWMO,SRC
–
230
370
50
–
mA
mA
ns
ns
V
V
V
PWMO = 3.5V
PWMO = 1.5V
Sourcing Current1)
7.2.10 PWMO Gate Driver Peak IPWMO,SNK
–
–
Sinking Current1)
7.2.11 PWMO Gate Driver
Output Rise Time
tR,PWMO
tF,PWMO
VPWMO
–
100
60
5.5
C
L,PWMO = 3.3nF;
PWMO = 1V to 4V
L,PWMO = 3.3nF;
PWMO = 1V to 4V
CL,PWMO = 3.3nF;
V
7.2.12 PWMO Gate Driver
Output Fall Time
–
30
–
C
V
7.2.13 PWMO Gate Driver
Output Voltage
4.5
Current Consumption
7.2.14 Current Consumption,
Shutdown Mode
Iq_off
Iq_on
–
–
–
–
10
7
µA
VEN/PWMI = 0.8 V;
Tj ≤ 105C; VIN = 16V
7.2.15 Current Consumption,
Active Mode2)
mA
VEN/PWMI ≥ 4.75 V;
I
BO = 0 mA;
VIN = 16V
V
SWO = 0% Duty
1) Not subject to production test, specified by design
2) Dependency on switching frequency and gate charge of external switches.
Datasheet
17
Rev. 1.1, 2012-04-11
ILD1150
Linear Regulator
8
Linear Regulator
8.1
Description
The internal linear voltage regulator supplies the internal gate drivers with a typical voltage of 5 V and current up
to 50 mA. An external output capacitor with low ESR is required on pin IVCC for stability and buffering transient
load currents. During normal operation the external MOSFET switches will draw transient currents from the linear
regulator and its output capacitor. Proper sizing of the output capacitor must be considered to supply sufficient
peak current to the gate of the external MOSFET switches.
Integrated undervoltage protection for the external switching MOSFET:
An integrated undervoltage reset threshold circuit monitors the linear regulator output voltage (VIVCC) and resets
the device in case the output voltage falls below the IVCC undervoltage reset switch OFF threshold (VIVCC,RTH,d).
The undervoltage reset threshold for the IVCC pin helps to protect the external switches from excessive power
dissipation by ensuring the gate drive voltage is sufficient to enhance the gate of an external logic level n-channel
MOSFET.
IN
IVCC
14
1
Linear Regulator
EN / PWMI
13
Gate
Drivers
LinReg_BlckDiag.vsd
Figure 8
Voltage Regulator Block Diagram and Simplified Application Circuit
Datasheet
18
Rev. 1.1, 2012-04-11
ILD1150
Linear Regulator
8.2
Electrical Characteristics
VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless
otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit Conditions
Min.
Typ.
Max.
8.2.1
8.2.2
Output Voltage
VIVCC
ILIM
4.6
5
5.4
V
6 V ≤ VIN ≤ 45 V
0.1 mA ≤ IIVCC ≤ 50 mA
Output Current Limitation
51
90
mA
VIN = 13.5 V
V
IVCC = 4.5V
8.2.3
8.2.4
8.2.5
8.2.6
Drop out Voltage
VDR
1.4
–
V
I
IVCC = 50mA 1)
2)
Output Capacitor
CIVCC
0.47
µF
Ω
Output Capacitor ESR
RIVCC,ESR
0.5
–
f = 10kHz
Undervoltage Reset Headroom VIVCC,HDRM 100
–
mV
V
V
IVCC decreasing
IVCC - VIVCC,RTH,d
8.2.7
8.2.8
Undervoltage Reset Threshold VIVCC,RTH,d 4.0
–
–
–
V
V
V
V
IVCC decreasing
IVCC increasing
Undervoltage Reset Threshold VIVCC,RTH,i
–
4.5
1) Measured when the output voltage VCC has dropped 100 mV from its nominal value.
2) Minimum value given is needed for regulator stability; application might need higher capacitance than the minimum.
Datasheet
19
Rev. 1.1, 2012-04-11
ILD1150
Protection and Diagnostic Functions
9
Protection and Diagnostic Functions
9.1
Description
The ILD1150 has integrated circuits to diagnose and protect against output overvoltage, open load, open feedback
and overtemperature faults. In case any of the four fault conditions occur the Status output ST will output an active
logic low signal to communicate that a fault has occurred. During an overvoltage or open load condition the gate
driver outputs SWO and PWMO will turn off. Figure 11 illustrates the various open load and open feedback
conditions. In the event of an overtemperature condition (Figure 14) the integrated thermal shutdown function
turns off the gate drivers and internal linear voltage regulator. The typical junction shutdown temperature is 175°C.
After cooling down the IC will automatically restart operation. Thermal shutdown is an integrated protection
function designed to prevent immediate IC destruction and is not intended for continuous use in normal operation.
Input
Output
Protection and
Diagnostic Circuit
Output
Overvoltage
Open Load
SWO and PWMO
Gate Driver Off
OR
Open Feedback
Overtemperature
Linear Regualtor
Off
OR
Input
Undervoltage
Pro_Diag_BlckDiag.vsd
Figure 9
Protection and Diagnostic Function Block Diagram
Input
Output
Condition
Level*
False
True
ST
H
L
SWO
Sw*
L
PWMO
H or Sw*
IVCC
Active
Active
Overvoltage
L
False
True
H
L
Sw*
L
H or Sw*
Active
Active
Open Load
L
False
True
False
True
H
L
H
L
Sw*
L
Sw*
L
H or Sw*
Active
Active
Active
Shutdown
Pro_Diag_TT.vsd
Open Feedback
Overtemperature
L
H or Sw*
L
*Note:
Sw = Switching
False = Condition does not exist
True = Condition does exist
Figure 10 Status Output Truth Table
Datasheet
20
Rev. 1.1, 2012-04-11
ILD1150
Protection and Diagnostic Functions
VBO
Output Open Circuit Conditions
Open Circuit 3
Open Circuit 1
Open Circuit
Condition
Fault Threshold Voltage
VREF
Fault Condition
1
2
3
4
Open FBH
Open FBL
-20 to -100 mV
0.5 to 1.0 V
ROVH
RFB
Overvoltage
Compartor
OVFB
Open Circuit 2
D1
9
Open VBO
Open PWMO
VFBx < VFBx,min = 4.5V
Detected by overvoltage
ROVL
VOVFB,TH
D2
D3
D4
D5
D6
D7
D8
D9
D10
VREF
Feedback Voltage
Error Amplifier
FBH
6
+
VREF
-
FBL
Max Threshold = 1.0 V
7
Min Threshold = 0.5 V
Typical VREF = 0.3 V
Open Circuit 4
TDIM
Max Threshold = -20 mV
Min Threshold = -100 mV
PWMO
5
Figure 11 Open Load and Open Feedback Conditions
VOVFB
example: VOUT,max=40V
VOVP,max
1.25mA
Overvoltage Protection
40V
ROVH
ACTIVE
≅ 33.2kΩ
1.25mA
9
VOVFB,TH
OVFB
1.25V
ROVL
1kΩ
1.25V
Overvoltage Protection is
disabled
GND
12
t
Figure 12 Overvoltage Protection description
Datasheet
21
Rev. 1.1, 2012-04-11
ILD1150
Protection and Diagnostic Functions
Status Output Timing Diagram
Startup
Normal
Thermal
Shutdown
Overvoltage
2
Open Load /
Feedback
Shutdown
1
3
VIVCC
VIVCC,RTH,i
VIVCC,RTH,d
t
t
t
t
TJ,SD,HYST
1
TJ
TJ,SD
2
VBO
VOVFB ≥ VOVFB,TH
VOVFB < VOVFB,T L
3
VFBH-VFBL
VREF,2
tSS
tSS
0.3 V Typ
VREF,1
tSD
tSD
tSD
VST
t
Figure 13 Status Output Timing Diagram
Datasheet
22
Rev. 1.1, 2012-04-11
ILD1150
Protection and Diagnostic Functions
VEN/PWMI
H
L
t
Tj
T
jSD
ΔΤ
TjSO
t
Ta
VSWO
t
ILED
Ipeak
t
VPWMO
t
VST and
VIVCC
5V
t
Device
OFF
Overtemp
Fault
Overtemp
Fault
Overtemp
Fault
Overtemp
Fault
Normal Operation
ON
ON
ON
Figure 14 Device overtemperature protection behavior
Datasheet
23
Rev. 1.1, 2012-04-11
ILD1150
Protection and Diagnostic Functions
9.2
Electrical Characteristics
All parameters have been tested at 25°C, unless otherwise specified.
VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless
otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit Conditions
Min.
Typ.
Max.
Status Output:
9.2.1
9.2.2
9.2.3
9.2.4
Status Output Voltage Low
VST,LOW
IST,MAX
IST,HIGH
tSD
–
2
–
8
–
0.4
–
V
IST = 1mA
Status Sink Current Limit
Status Output Current
Status Delay Time
–
mA
µA
ms
V
V
–
ST = 1V
ST = 5V
–
1
10
12
Temperature Protection:
9.2.5
9.2.6
Over Temperature Shutdown
Tj,SD
160
–
175
15
190
–
°C
°C
–
–
Over Temperature Shutdown
Hystereses
Tj,SD,HYST
Overvoltage Protection:
9.2.7
9.2.8
9.2.9
Output Over Voltage Feedback VOVFB,TH 1.21
Threshold Increasing
1.25
–
1.29
150
10
V
–
Output Over Voltage Feedback VOVFB,HYS 50
Hysteresis
mV
µs
µA
Output Voltage
decreasing
Over Voltage Reaction Time
tOVPRR
IOVFB
2
–
Output Voltage
decreasing
9.2.10 Over Voltage Feedback Input
Current
-1
0.1
1
V
OVFB = 1.25 V
Open Load and Open Feedback Diagnostics
9.2.11 Open Load/Feedback
Threshold
VREF,1,3
-100
0.5
–
–
-20
1
mV
V
V
REF = VFBH - VFBL
Open Circuit 1 or 3
REF = VFBH - VFBL
Open Circuit 2
9.2.12 Open Feedback Threshold
VREF,2
V
Note:Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are
not designed for continuous repetitive operation.
Datasheet
24
Rev. 1.1, 2012-04-11
ILD1150
Application Information
10
Application Information
Note:The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
LBO
DBO
VIN = 4.75V to 45V
CIN
CBO
RFB
VREF
TSW
2
4
SWO
14
1
IN
SWCS
D1
IVCC
VCC or VIVCC
CIVCC
RCS
D2
D3
D4
D5
D6
D7
D8
D9
D10
3
9
SGND
OVFB
ROVH
RST
10
STATUS
ST
ROVL
IC1
ILD1150
IC2
Microcontroller
(e.g. XC866)
PWMI
13
11
8
EN / PWMI
FREQ / SYNC
COMP
Digital Dimming
6
7
FBH
FBL
Spread
Spectrum
ILED
CCOMP
PWMO
TDIM
5
PWMO
GND
RFREQ
RCOMP
12
Figure 15 Boost to Ground Application Circuit - B2G (Boost configuration)
Reference
Designator
Part
Number
Value
Manufacturer
Type
Quantity
D1 - 10
DBO
White
Schottky, 3 A, 100 VR
100 uF, 50V
10 nF
Osram
Vishay
LUW H9GP
SS3H10
LED
10
1
2
1
1
1
1
1
1
1
2
1
1
1
1
2
2
Diode
CIN, CBO
CCOMP
CIVCC
IC1
Panasonic
EPCOS
EEEFK1H101GP
X7R
Capacitor
Capacitor
Capacitor
IC
MLCC CCNPZC105KBW X7R
ILD1150
1uF , 6.3V
EPCOS
--
Infineon
IC2
--
Infineon
XC866
IC
LBO
100 uH
Coilcraft
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Infineon
MSS1278T-104ML
ERJ3EKF1002V
ERJ14BQFR82U
ERJ3EKF2002V
ERJ3EKF3322V
ERJ3EKF1001V
ERJB1CFR05U
IPG20N06S4L-26
IPG20N10S4L-22
BSP318S
Inductor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Transistor
Transistor
Transistor
RCOMP
RFB
10 kΩ, 1%
820 mΩ, 1%
20 kΩ, 1%
RFREQ, RST
ROVH
33.2 kΩ, 1%
1 kΩ, 1%
ROVL
RCS
50 mΩ, 1%
Dual N-ch enh. (60V, 20A)
alternativ: 100V N-ch, 35A
alternativ: 60V N-ch, 2.6A
TDIM,TSW
Infineon
Infineon
Figure 16 Bill of Materials for B2G Application Circuit
Datasheet 25
Rev. 1.1, 2012-04-11
ILD1150
Application Information
L1
DBO
CSEPIC
VIN
VIN = 4.75V to 45V
CIN
ISW
RFB
L2
VREF
CBO
TSW
2
4
SWO
14
IN
SWCS
ILED
VCC or VIVCC
RCS
D1
ROVH
3
9
SGND
OVFB
D2
D3
D4
D5
D6
D7
RST
10
STATUS
ST
ROVL
IC1
ILD1150
IC2
Microcontroller
(e.g. XC866)
PWMI
13
11
8
Digital Dimming
Spread Spectrum
EN / PWMI
FREQ / SYNC
COMP
6
7
FBH
FBL
CCOMP
DPOL
RPOL
Dn
1
IVCC
CIVCC
PWMO
RFREQ
RCOMP
TDIM
5
PWMO
GND
12
Figure 17 SEPIC Application Circuit (Buck-Boost configuration)
Reference
Designator
Part
Number
Value
Manufacturer
Type
Quantity
D1 - n
DBO
White
Schottky, 3 A, 100 VR
80V Diode
3.3 uF, 20V
100 uF, 50V
10 nF
Osram
Vishay
LUW H9GP
SS3H10
LED
Diode
Diode
variable
1
1
1
2
1
1
1
1
2
DPOL
Infineon
EPCOS
Panasonic
EPCOS
EPCOS
Infineon
Infineon
Coilcraft
BAS1603W
X7R, Low ESR
CSEPIC
CIN, CBO
CCOMP
CIVCC
IC1
Capacitor
Capacitor
Capacitor
Capacitor
IC
EEEFK1H101GP
X7R
1uF , 6.3V
--
X7R
ILD1150
IC2
--
XC866
IC
L1 , L2
47 uH
MSS1278T-473ML
MSD1278-223MLD
ERJ3EKF1002V
ERJ14BQFR82U
ERJ3EKF2002V
ERJ3EKF3322V
ERJ3EKF1001V
ERJB1CFR05U
IPG20N06S4L-26
IPD35N10S3L-26
BSP318S
Inductor
Inductor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Transistor
Transistor
Transistor
alternativ: 22uH coupled
inductor
Coilcraft
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Infineon
1
2
1
2
1
1
1
1
2
2
RCOMP, RPOL
RFB
RFREQ, RST
ROVH
10 kΩ, 1%
820 mΩ, 1%
20 kΩ, 1%
33.2 kΩ, 1%
ROVL
1 kΩ, 1%
RCS
50 mΩ, 1%
Dual N-ch enh. (60V, 20A)
alternativ: 100V N-ch, 35A
alternativ: 60V N-ch, 2.6A
TDIM,TSW
Infineon
Infineon
Figure 18 Bill of Materials for SEPIC Application Circuit
Datasheet
26
Rev. 1.1, 2012-04-11
ILD1150
Application Information
DBO
VIN
VIN = 4.75V to 45V
L1
CIN
ISW
RFB
L2
VREF
CBO
TSW
2
4
SWO
14
IN
SWCS
ILED
VCC or VIVCC
RCS
ROVH
D1
3
9
SGND
OVFB
D2
D3
D4
D5
D6
D7
RST
10
STATUS
ST
ROVL
IC1
ILD1150
IC2
Microcontroller
(e.g. XC866)
PWMI
13
11
8
Digital Dimming
Output
EN / PWMI
FREQ / SYNC
COMP
6
7
FBH
FBL
CCOMP
DPOL
RPOL
Dn
1
IVCC
CIVCC
RFREQ
RCOMP
TDIM
5
PWMO
GND
PWMO
12
Figure 19 Flyback Application Circuit (Buck-Boost configuration)
Reference
Designator
Part
Number
Value
Manufacturer
Type
Quantity
D1 - n
DBO
White
Schottky, 3 A, 100 VR
3.3 uF, 50V (100V)
100 uF, 50V
47 nF
Osram
Vishay
LUW H9GP
SS3H10
LED
variable
Diode
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
2
2
CBO
EPCOS
Panasonic
EPCOS
EPCOS
Infineon
X7R, Low ESR
Capacitor
Capacitor
Capacitor
Capacitor
IC
CIN
EEEFK1H101GP
X7R
CCOMP
CIVCC
IC1
1 uF , 6.3V
X7R
--
ILD1150
IC2
--
Infineon
XC866
IC
L1 , L2
RCOMP, RPOL
DPOL
1 µH / 9 uH
10 kΩ, 1%
80 V Diode
EPCOS
Panasonic
Infineon
Transformer EHP 16
ERJ3EKF1002V
BAS1603W
Inductor
Resistor
Diode
Isabellenhütte
RFB
820 mΩ, 1%
10 kΩ, 1%
SMS – Power Resistor
ERJ3EKF1002V
ERJ3EKF5622V
ERJ3EKF1241V
SMS - Power Resistor
IPG20N06S4L-26
IPG20N10S4L-22
BSP318S
Resistor
Resistor
Resistor
Resistor
Resistor
Transistor
Transistor
Transistor
RFREQ, RST
ROVH
Panasonic
Panasonic
Panasonic
Isabellenhütte
Infineon
56.2 kΩ, 1%
1.24 kΩ, 1%
5 mΩ, 1%
ROVL
RCS
Dual N-ch enh. (60V, 20A)
alternativ: 100V N-ch, 35A
TDIM,TSW
Infineon
alternativ: 60V N-ch, 2.6A
Infineon
Figure 20 Bill of Materials for Flyback Application Circuit
Datasheet
27
Rev. 1.1, 2012-04-11
ILD1150
Application Information
DBO
CBO
D2
D1
VREF
LBO
VIN = 4.75V to 45V
CIN
ILED
RFB
BUCK Setup:
VIN > VOUT
TSW
2
4
SWO
14
1
IN
CIVCC
SWCS
IVCC
VCC or VIVCC
RCS
3
9
SGND
OVFB
RST
10
STATUS
ST
IC1
IC2
Microcontroller
ILD1150
EN / PWMI
FREQ / SYNC
COMP
(e.g. XC866)
13
11
8
Enable
6
7
FBH
FBL
Spread Spectrum
CCOMP
5
PWMO
GND
RFREQ
RCOMP
12
Figure 21 Buck Application Circuit
Reference
Value
Part
Number
Manufacturer
Type
Quantity
Designator
D1 -2
DBO
CBO
White
Osram
Vishay
LE UW Q9WP
LED
Diode
2
1
1
Schottky, 3 A, 100 VR
4.7 uF, 50V
SS3H10
X7R
EPCOS
Capacitor
CIN
CCOMP
CIVCC
IC1
100 uF, 50V
47 nF
Panasonic
EPCOS
EEEFK1H101GP
X7R
Capacitor
Capacitor
Capacitor
IC
1
1
1
1
1
1
1
1
2
1
1
1
MLCC CCNPZC105KBW X7R
1 uF , 6.3V
--
EPCOS
Infineon
ILD1150
XC866
IC2
--
Infineon
IC
L1
22 µH
Coilcraft
MSS1278T
Inductor
Resistor
Resistor
Resistor
Resistor
Transistor
Transistor
RCOMP
RFB
10 kΩ, 1%
820 mΩ, 1%
20 kΩ, 1%
50 mΩ, 1%
30V, 22A
Panasonic
Isabellenhütte
ERJ3EKF1002V
SMS – Power Resistor
ERJ3EKF2002V
SMS - Power Resistor
IPB22N03S4L-15
BSP318S
RFREQ, RST
RCS
Panasonic
Isabellenhütte
Infineon
TSW
alternativ: 60V N-ch, 2.6A
Infineon
Figure 22 Bill of Materials for Buck Application Circuit
Datasheet
28
Rev. 1.1, 2012-04-11
ILD1150
Application Information
CBO
RFB
TDIM2
VIN = 4.75V to 45V
CIN
DZ
Dn
D1
RDIM2
Number of LEDs could be
variable independent from VIN:
Æ BUCK-BOOST configuration
RDIM1
ILED
LBO
DBO
TDIM1
ISW
PWMO
VOUT
TSW
5
PWMO
2
4
SWO
SWCS
VCC or VIVCC
6
FBH
RCS
7
FBL
IN
3
9
SGND
OVFB
ROVH
RST
14
10
STATUS
ST
IC2
ROVL
IC1
Microcontroller
(e.g. XC866)
ILD1150
PWMI
13
11
Digital Dimming
Spread Spectrum
EN / PWMI
FREQ / SYNC
8
COMP
IVCC
CCOMP
1
CIVCC
GND
12
RFREQ
RCOMP
Figure 23 Boost to Battery Application Circuit - B2B (Buck-Boost configuration)
Reference
Designator
Part
Number
Value
Manufacturer
Type
Quantity
D1 - n
DBO
DZ
White
Schottky, 3 A, 100 VR
5V
Osram
Vishay
Vishay
LUW H9GP
SS3H10
Zener
Diode
Diode
Diode
variable
1
1
CBO
CIN
100 uF, 80V
100 uF, 50V
Panasonic
Panasonic
EEVFK1K101Q
Capacitor
Capacitor
1
1
EEEFK1H101GP
CCOMP
10 nF
1 uF, 6.3V
--
EPCOS
EPCOS
X7R
Capacitor
Capacitor
IC
1
1
1
1
1
3
1
2
1
1
1
1
1
1
CIVCC
MLCC CCNPZC105KBW X7R
ILD1150
IC1
IC2
Infineon
--
Infineon
XC866
IC
LBO
100 uH
Coilcraft
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Infineon
MSS1278T-104ML_
ERJ3EKF1002V
ERJ14BQFR82U
ERJ3EKF2002V
ERJP06F5102V
ERJ3EKF1001V
ERJB1CFR05U
BSO615CG
Inductor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Transistor
Transistor
Transistor
RCOMP, RDIM1, RDIM2
RFB
RFREQ, RST
ROVH
10 kΩ, 1%
820 mΩ, 1%
20 kΩ, 1%
33.2 kΩ, 1%
ROVL
1 kΩ, 1%
RCS
50 mΩ, 1%
TDIM1,TDIM2
60V Dual N-ch (3.1A) and P-ch. enh. (2A)
alternativ: 100V N-ch (0.37A),
alternativ: 60V P-ch (1.9A)
Infineon
BSP123
Infineon
BSP171P
1
N-ch, OptiMOS-T2 100V, 35A
alternativ: 60V N-ch, 30A
TSW
Infineon
IPD35N10S3L-26
IPD30N06S4L-23
BSP318S
Transistor
Infineon
Transistor
Transistor
1
1
alternativ: 60V N-ch, 2.6A
Infineon
Figure 24 Bill of Materials for B2B Application Circuit
Datasheet
29
Rev. 1.1, 2012-04-11
ILD1150
Application Information
LBO
DBO
ILoad
VIN = 4.75V to 45V
CBO
CIN
constant
VOUT
RL
2
4
TSW
SWO
14
1
IN
SWCS
IVCC
VCC or VIVCC
CIVCC
RCS
3
9
ROVH
SGND
OVFB
RST
10
5
STATUS
ST
ROVL
IC1
ILD1150
IC2
Microcontroller
(e.g. XC866)
PWMO
RFB1
13
11
8
Enable
EN / PWMI
FREQ / SYNC
COMP
6
7
FBH
FBL
Spread Spectrum
RFB2
VREF
CCOMP
RFB3
GND
12
RFREQ
RCOMP
Figure 25 Boost Voltage Application Circuit
Reference
Designator
Part
Number
Value
Manufacturer
Vishay
Type
Quantity
1
DBO
Schottky, 3 A, 100 VR
SS3H10
Diode
CBO
CIN
100 uF, 80V
100 uF, 50V
Panasonic
Panasonic
EEVFK1K101Q
Capacitor
Capacitor
1
1
EEEFK1H101GP
X7R
CCOMP
CIVCC
IC1
10 nF, 16V
1 uF, 6.3V
EPCOS
Panasonic
Infineon
Capacitor
Capacitor
IC
1
1
1
1
1
1
2
1
2
1
1
1
1
X7R
--
ILD1150
XC866
IC2
--
Infineon
IC
LBO
100 uH
Coilcraft
MSS1278T-104ML_
ERJ3EKF1002V
ERJ3EKF5102V
ERJ3EKF1001V
ERJ3EKF2002V
ERJ3EKF3322V
ERJ3EKF1001V
ERJB1CFR05U
IPG20N10S4L-22
Inductor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
RCOMP
RFB1,RFB3
RFB2
10 kohms, 1%
51 kohms, 1%
1 kohms, 1%
20 kohms, 1%
33.2 kohms, 1%
1 kohms, 1%
50 mohms, 1%
N-ch, OptiMOS-T2 100V
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Infineon
RFREQ, RST
ROVH
ROVL
RCS
TSW
Transistor
Figure 26 Bill of Materials for Boost Voltage Application Circuit
Note:The application drawings and corresponding bill of materials are simplified examples. Optimization of the
external components must be done accordingly to specific application requirements.
Datasheet
30
Rev. 1.1, 2012-04-11
ILD1150
Application Information
10.1
Further Application Information
•
•
For further information you may contact http://www.infineon.com/
Application Note: ILD1150 / ILD1151 DC-DC Multitopology Controller IC for Industrial Applications
“Dimensioning and Stability Guideline - Theory and Practice”
Datasheet
31
Rev. 1.1, 2012-04-11
ILD1150
Revision History
11
Revision History
Revision
1.0
Date
Changes
2011-11-16
2012-04-11
Initial Datasheet
1.1
Page 3: RoHS Logo update
Page 3: Topology update
Application Information chapter update
Datasheet
32
Rev. 1.1, 2012-04-11
ILD1150
Package Outlines
12
Package Outlines
0.35 x 45˚
1)
0.1 C D
0.1
3.9
+0.06
0.19
0.08
C
C
0.64
0.25
0.65
2)
0.05
0.2
0.25
6
M
M
0.2
D 8x
0.15
C A-B D 14x
D
Bottom View
0.2
3
A
1
7
14
8
1
7
14
8
Exposed
Diepad
B
0.1 C A-B 2x
1)
0.1
4.9
Index Marking
1) Does not include plastic or metal protrusion of 0.15 max. per side
2) Does not include dambar protrusion
PG-SSOP-14-1,-2,-3-PO V02
PG-SSOP-14
Figure 27 PG-SSOP-14
Green Product (RoHS compliant)
To meet the world-wide customer requirements for environmentally friendly products and to be compliant with
government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e
Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020).
For further package information, please visit our website:
Dimensions in mm
http://www.infineon.com/packages.
Datasheet
33
Rev. 1.1, 2012-04-11
Edition 2012-04-11
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2012 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.
Information
For further information on technology, delivery terms and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
Warnings
Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact the nearest Infineon Technologies Office.
Infineon Technologies components may be used in life-support devices or systems only with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
相关型号：
ILD1206T-X001
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