ICE2HS01G Datasheet, PDF(6/29 Page) Infineon Technologies AG – High Performance Resonant Mode Controller

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ICE2HS01G Datasheet, PDF (6/29 Pages) Infineon Technologies AG – High Performance Resonant Mode Controller

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High Performance Resonant Mode Controller

ICE2HS01G

Pin Configuration and Functionality

1 Pin Configuration and Functionality

1.1 Pin configuration with PG-DSO-20

Figure 2

Table 1

Pin configuration with PG-DSO-20

Pin names

Pin Symbol Function

Timer Over-load blanking time and

autorestart time

EnA

Enable

Softstart

LOAD Load detection

FREQ Frequency of operation

Delay Advance delay time setting

Primary dead time setting

Vmc

Voltage level for entering and

leaving missing cycle mode

Vref

Reference voltage output

10 Vres

Resonant voltage setting

Pin Symbol Function

11 VINS

Input bus voltage sense

12 CS

13 CL

14 SRD

15 GND

16 SLG

17 SHG

18 LG

19 HG

20 VCC

Current sense

Currsnt sense output level

Sychronous rectification on dura-

tion and disable function

IC ground

Gate logic for secondary low side

switch

Gate logic for secondary high side

switch

Gate logic for primary low side

switch

Gate logic for primary highside

switch

IC power supply

1.2 Pin Functionality

Timer (Over-load blanking time and auto-restart timer)

Timer pin is used to set the blanking time and restart time for over load protection. The RC parallel circuit, CTL and

RTL, is connected to this pin. The blanking time is determined by charging time of CTL through IC internal current

source, and the restart time is determined by the discharging time of CTL through RTL. This allows the system to

face a sudden power surge for a short period of time without triggering the over load protection. In addition, the

average power delivered is not influenced by any VCC dip which can not reset internal reference voltage.

EnA (Enable)

Internally, this pin has a pull-up current source of 100ÂµA. By connecting a resistor outside from this pin to ground,

certain voltage level is set up on this pin. If the voltage level on this pin is pulled down below certain level, IC is

latched. If the external resistor has a negative temperature coefficient, this pin can be used to implement over-

Version 2.0

11 May 2010

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