iC-DC

2-CHANNEL BUCK/BOOST DC/DC CONVERTER

Rev B1, Page 18/19

DESIGN REVIEW: Notes On Chip Functions

iC-DC Z

Nr.

Function, Parameter/Code

Description and Application Hints

1

None at time of printing.

Table 6: Notes on chip functions regarding iC-DC chip release Z

REVISION HISTORY

Rel.

Chapter

Modification

Page

B1

2017-08-31 ABSOLUTE MAXIMUM RATINGS

Item G001: changed min. -40V to -38.5V

6

THERMAL DATA

Item T01: changed max. 125°C to 105°C

6

ELECTRICAL

CHARACTERISTICS

Item 002: changed max. 200 µA to 400µA

Item 003: for VB = 4 V changed max. 50 mA to 60mA

Item 004: for VB = 4 V changed max. 60 mA to 70mA

Item 013: condition changed from -2 mA to -5 mA, max. value changed -42 V to -38.5 V

Item 101: changed max 0.6 V to 0.7 V

Item 104: typ. value removed, changed max. -120 mA to -80mA, min. -500 mA to

-600mA

Item 105: changed max. -150 mA to -250 mA

Item 213: changed min. 3.2 V to 3.3 V

Item 307: added typ. 4.7µF

Items 311 and 311: changed min. 1 µF to 2.2, added typ. 10 µF

Item 401: changed min. 1.18 V to 1.16 V and max. 1.30 V to 1.32

Item 404: changed min. 2 MHz to 1.8 MHz

Item 504 and 604: added typ. 4.7 µF

Item 708: for VCCx ≥ 3 V changed max. 80 mA to 90 mA

Item A01: changed typ. 0.64 V to 0.65 V and max. 0.7 V to 0.75 V

Item A02: changed min. 0.54 V to 0.5 V

Item A03: changed typ. 40 mA to 50 mA

7 - 10

LINEAR REGULATORS VCC1

AND VCC2

Figure 4 corrected Y-axis description from µA into mA

13

DESCRIPTION OF THE

APPLICATION

Coil requirement changed from cut off current 1A to DC current and saturation current of

min. 0.8A

Corrected coil type: Siemens Matsushita B78108-S1223-J (22 µH/1 A, axial)

Added Würth no.: 74437324220 (22µH, 1A, SMD shielded)

16

DESIGN REVIEW: Notes On Chip

Functions

Removed for revision iC-DC Z due to changing of elec. char. no.: 013

18

Preliminary removed

all

iC-Haus expressly reserves the right to change its products and/or specifications. An Infoletter gives details as to any amendments and additions made to the

relevant current specifications on our internet website www.ichaus.com/infoletter and is automatically generated and shall be sent to registered users by email.

Copying – even as an excerpt – is only permitted with iC-Haus’ approval in writing and precise reference to source.

The data specified is intended solely for the purpose of product description and shall represent the usual quality of the product. In case the specifications contain

obvious mistakes e.g. in writing or calculation, iC-Haus reserves the right to correct the specification and no liability arises insofar that the specification was from

a third party view obviously not reliable. There shall be no claims based on defects as to quality in cases of insignificant deviations from the specifications or in

case of only minor impairment of usability.

No representations or warranties, either expressed or implied, of merchantability, fitness for a particular purpose or of any other nature are made hereunder

with respect to information/specification or the products to which information refers and no guarantee with respect to compliance to the intended use is given. In

particular, this also applies to the stated possible applications or areas of applications of the product.

iC-Haus products are not designed for and must not be used in connection with any applications where the failure of such products would reasonably be

expected to result in significant personal injury or death (Safety-Critical Applications) without iC-Haus’ specific written consent. Safety-Critical Applications

include, without limitation, life support devices and systems. iC-Haus products are not designed nor intended for use in military or aerospace applications or

environments or in automotive applications unless specifically designated for such use by iC-Haus.

iC-Haus conveys no patent, copyright, mask work right or other trade mark right to this product. iC-Haus assumes no liability for any patent and/or other trade

mark rights of a third party resulting from processing or handling of the product and/or any other use of the product.

Software and its documentation is provided by iC-Haus GmbH or contributors "AS IS" and is subject to the ZVEI General Conditions for the Supply of Products

and Services with iC-Haus amendments and the ZVEI Software clause with iC-Haus amendments (www.ichaus.com/EULA).