ZXSC100X8TA

ZXSC100X8TA Datasheet

ZXSC100X8 Obsolete Closest Alternative is ZXSC100N8

Part	Datasheet
ZXSC100X8TA	ZXSC100X8TA (pdf)

Related Parts	Information
ZXSC100N8TC	ZXSC100N8TC
ZXSC100X8TC	ZXSC100X8TC
ZXSC100N8TA	ZXSC100N8TA
ZXSC100-EVAL	ZXSC100-EVAL

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ZXSC100X8 Obsolete Closest Alternative is ZXSC100N8 ZXSC100 SINGLE CELL DC-DC CONVERTER SOLUTION The ZXSC100 series is designed for DC-DC applications where step-up voltage conversion from very low input voltages is required. These applications mainly operate from single nickel cadmium or nickel metal hydride battery cells. The circuit can start up under full load with regulation maintained down to an input voltage of only volts. The solution configuration ensures optimum efficiency over a wide range of load currents. Several circuit configurations are possible with loads up to 2W. The step up output voltage is easily programmed with external resistors. With its nonsynchronous architecture an output voltage down to the input voltage level can be achieved. For best performance the ZXSC100 quiescent current is a small 150uA ensuring minimum battery drain in no load conditions. The IC and discrete combination offers the ultimate cost vs. performance solution for single cell DC-DC conversion. Pin Assignments SO-8 • Efficiency maintained over a wide range of input voltages and load currents 82% efficiency VBATT = 1V • Startup under full load • Minimum operating input voltage VBATT = 0.926V • Adjustable output voltage down to VBATT • Quiescent current typically 150uA referred to input voltage • SO-8 package in “Green” Molding Compound No Br, Sb with lead Free Finish/RoHS Compliant Note 1 EU Directive 2002/95/EC RoHS . All applicable RoHS exemptions applied. Please visit our website at: Typical Application Circuit • Cordless telephones • MP3 players • PDA • Pagers • Battery backup supplies • Electronic toothbrush • GPS receivers • Digital camera • Palmtop computers • Hand held instruments • Portable medical equipment • Solar powered equipment ZXSC100 1 of 13 January 2012 Diodes Incorporated ZXSC100X8 Obsolete Closest Alternative is ZXSC100N8 ZXSC100 SINGLE CELL DC-DC CONVERTER SOLUTION Pin Descriptions Pin No. Name Emitter of internal drive transistor. Connect to RE in lower power applications. Must be unconnected in higher power applications. Only used if increased drive current to the main external NPN switching transistor is required. See Note Drive current sense input. Internal threshold voltage set 25mV below VCC. Connected external sense resistor. Note 2 Supply voltage, generally NiMH, NiCd single cell. ISENSE Inductor current sense input. Internal threshold voltage set to 25mV. Connect external sense resistor. Feedback sense. Internal threshold set to 730mV. Connect external resistive divider to output voltage. GND Ground Drive output for external switching transistor. VDRIVE Connect to base of external bipolar transistor. For increased drive current see Note 2 Note: In higher load current applications an additional PNP can be used to increase the drive current of the main external NPN switching transistor. The PNP base should be connected to BAS pin, its emitter to the RE pin and its collector connected to VDRIVE pin. Ordering Information ZXSC100X8 Obsolete Closest Alternative is ZXSC100N8 ZXSC100 SINGLE CELL DC-DC CONVERTER SOLUTION Device Package Part Marking ZXSC100N8TA SO-8 ZXSC100 ZXSC100X8TA MSOP-8 ZXSC100 Status Active Obsolete 7” Tape and Reel Quantity Part Number Suffix 500/Tape & Reel 1000/Tape & Reel Package Outline Dimensions All Dimensions in mm SO-8 E1 E A1 L Detail ‘A’ Gauge Plane Seating Plane A2 A A3 h 45° 7°~9° Detail ‘A’ SO-8 Dim Min Max All Dimensions in mm ZXSC100 12 of 13 January 2012 Diodes Incorporated ZXSC100X8 Obsolete Closest Alternative is ZXSC100N8 ZXSC100 SINGLE CELL DC-DC CONVERTER SOLUTION IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION . Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: are intended to implant into the body, or support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user.

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ZXSC100X8 Obsolete Closest Alternative is ZXSC100N8

ZXSC100

SINGLE CELL DC-DC CONVERTER SOLUTION

The ZXSC100 series is designed for DC-DC applications where step-up voltage conversion from very low input voltages is required. These applications mainly operate from single nickel cadmium or nickel metal hydride battery cells.

The circuit can start up under full load with regulation maintained down to an input voltage of only volts. The solution configuration ensures optimum efficiency over a wide range of load currents. Several circuit configurations are possible with loads up to 2W. The step up output voltage is easily programmed with external resistors. With its nonsynchronous architecture an output voltage down to the input voltage level can be achieved. For best performance the ZXSC100 quiescent current is a small 150uA ensuring minimum battery drain in no load conditions.

The IC and discrete combination offers the ultimate cost vs. performance solution for single cell DC-DC conversion.

Pin Assignments

SO-8
• Efficiency maintained over a wide range of input
voltages and load currents 82% efficiency VBATT = 1V
• Startup under full load
• Minimum operating input voltage VBATT = 0.926V
• Adjustable output voltage down to VBATT
• Quiescent current typically 150uA referred to input
voltage
• SO-8 package in “Green” Molding Compound No Br, Sb with lead Free Finish/RoHS Compliant Note 1

EU Directive 2002/95/EC RoHS . All applicable RoHS exemptions applied. Please visit our website at:

Typical Application Circuit
• Cordless telephones
• MP3 players
• PDA
• Pagers
• Battery backup supplies
• Electronic toothbrush
• GPS receivers
• Digital camera
• Palmtop computers
• Hand held instruments
• Portable medical equipment
• Solar powered equipment

ZXSC100
1 of 13

January 2012

Diodes Incorporated

ZXSC100X8 Obsolete Closest Alternative is ZXSC100N8

ZXSC100

SINGLE CELL DC-DC CONVERTER SOLUTION

Pin Descriptions

Pin No.

Name

Emitter of internal drive transistor. Connect to RE in lower power applications. Must be
unconnected in higher power applications.

Only used if increased drive current to the main external NPN switching transistor is required.

See Note

Drive current sense input. Internal threshold voltage set 25mV below VCC. Connected external
sense resistor. Note 2

Supply voltage, generally NiMH, NiCd single cell.

ISENSE

Inductor current sense input. Internal threshold voltage set to 25mV. Connect external sense resistor.

Feedback sense. Internal threshold set to 730mV. Connect external resistive divider to output voltage.

GND Ground

Drive output for external switching transistor.

VDRIVE Connect to base of external bipolar transistor. For increased drive current see Note 2

Note:

In higher load current applications an additional PNP can be used to increase the drive current of the main external NPN switching transistor. The PNP base should be connected to BAS pin, its emitter to the RE pin and its collector connected to VDRIVE pin.
Ordering Information

ZXSC100X8 Obsolete Closest Alternative is ZXSC100N8

ZXSC100

SINGLE CELL DC-DC CONVERTER SOLUTION

Device Package Part Marking

ZXSC100N8TA SO-8 ZXSC100 ZXSC100X8TA MSOP-8 ZXSC100

Status

Active Obsolete
7” Tape and Reel

Quantity

Part Number Suffix
500/Tape & Reel
1000/Tape & Reel

Package Outline Dimensions All Dimensions in mm

SO-8

E1 E A1

L Detail ‘A’

Gauge Plane Seating Plane

A2 A A3
h 45°
7°~9° Detail ‘A’

SO-8

Dim Min Max

All Dimensions in mm

ZXSC100
12 of 13

January 2012

Diodes Incorporated

ZXSC100X8 Obsolete Closest Alternative is ZXSC100N8

ZXSC100

SINGLE CELL DC-DC CONVERTER SOLUTION

IMPORTANT NOTICE

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION .

Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages.

Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.

Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks.

LIFE SUPPORT

Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:

A. Life support devices or systems are devices or systems which:
are intended to implant into the body, or
support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ZXSC100X8TA Datasheet file may be downloaded here without warranties.

Datasheet ID: ZXSC100X8TA 510275