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PDF ICE2B0565 Data sheet ( Hoja de datos )

Número de pieza ICE2B0565
Descripción Off-Line SMPS Current Mode Controller
Fabricantes Infineon Technologies 
Logotipo Infineon Technologies Logotipo



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No Preview Available ! ICE2B0565 Hoja de datos, Descripción, Manual

Datasheet, V2.10a, 25 Mar 2014
CoolSET-F2
ICE2A0565/165/265/365
ICE2B0565/165/265/365
ICE2A0565G
ICE2A0565Z
ICE2A180Z/280Z
ICE2A765I/2B765I
ICE2A765P2/2B765P2
ICE2A380P2
Off-Line SMPS Current Mode
Controller with integrated 650V/
800V CoolMOS
PMM Power Management
&Multimarket

1 page




ICE2B0565 pdf
CoolSET™-F2
Table of Contents
Page
1 Pin Configuration and Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.1 Pin Configuration with PG-DIP-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.2 Pin Configuration with PG-DIP-7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.3 Pin Configuration with PG-TO220-6-46/7 . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.4 Pin Configuration with PG-DSO-16/12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.5 Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2 Representative Blockdiagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3
3.1
3.2
3.2.1
3.2.2
3.3
3.4
3.4.1
3.4.2
3.5
3.5.1
3.5.2
3.6
3.7
3.8
3.8.1
3.8.2
3.8.3
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Improved Current Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
PWM-OP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
PWM-Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Soft-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Oscillator and Frequency Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Frequency Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Current Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Leading Edge Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Propagation Delay Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
PWM-Latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Protection Unit (Auto Restart Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Overload / Open Loop with Normal Load . . . . . . . . . . . . . . . . . . . . . . . .15
Overvoltage due to Open Loop with No Load . . . . . . . . . . . . . . . . . . . . .16
Thermal Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4
4.1
4.2
4.3
4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Thermal Impedance (ICE2X765I and ICE2X765P2) . . . . . . . . . . . . . . . . . .20
Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Internal Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Control Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Protection Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Current Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
CoolMOS™ Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
5 Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . .26
6 Layout Recommendation for C18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Version 2.10a
5
25 Mar 2014

5 Page





ICE2B0565 arduino
CoolSET™-F2
secondary output voltage is insensitive on line
variations. Line variation changes the current
waveform slope which controls the duty cycle.
The external RSense allows an individual adjustment of
the maximum source current of the integrated
CoolMOS™.
Functional Description
V
OSC
max.
Duty Cycle
Soft-Start Comparator
PWM Comparator
FB
Voltage Ramp
t
PWM-Latch
Oscillator
V
OSC
0.3V
C5
Gate Driver
T
2
C
1
0.8V
10k
R
1
V
1
20pF
x3.65
PWM OP
0.8V
FB
0.3V
Gate Driver
t
t
Voltage Ramp
Figure 9 Improved Current Mode
To improve the Current Mode during light load
conditions the amplified current ramp of the PWM-OP
is superimposed on a voltage ramp, which is built by
the switch T2, the voltage source V1 and the 1st order
low pass filter composed of R1 and C1(see Figure 9,
Figure 10). Every time the oscillator shuts down for
max. duty cycle limitation the switch T2 is closed by
VOSC. When the oscillator triggers the Gate Driver T2 is
opened so that the voltage ramp can start.
In case of light load the amplified current ramp is to
small to ensure a stable regulation. In that case the
Voltage Ramp is a well defined signal for the
comparison with the FB-signal. The duty cycle is then
controlled by the slope of the Voltage Ramp.
By means of the Comparator C5, the Gate Driver is
switched-off until the voltage ramp exceeds 0.3V. It
allows the duty cycle to be reduced continuously till 0%
by decreasing VFB below that threshold.
Figure 10 Light Load Conditions
3.2.1 PWM-OP
The input of the PWM-OP is applied over the internal
leading edge blanking to the external sense resistor
RSense connected to pin Isense. RSense converts the
source current into a sense voltage. The sense voltage
is amplified with a gain of 3.65 by PWM OP. The output
of the PWM-OP is connected to the voltage source V1.
The voltage ramp with the superimposed amplified
current signal is fed into the positive inputs of the PWM-
Comparator, C5 and the Soft-Start-Comparator.
3.2.2 PWM-Comparator
The PWM-Comparator compares the sensed current
signal of the integrated CoolMOSTM with the feedback
signal VFB (see Figure 11). VFB is created by an
external optocoupler or external transistor in
combination with the internal pull-up resistor RFB and
provides the load information of the feedback circuitry.
When the amplified current signal of the integrated
CoolMOS™ exceeds the signal VFB the PWM-
Comparator switches off the Gate Driver.
Version 2.10a
11
25 Mar 2014

11 Page







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