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Features: Independent power supply for each built-in block :Each of the following built-in blocks is operated by a separate power supply : PFM controlled, step-up DC/DC converter ( PFM DC/DC ) 5 level window comparator ( MWVD ) Negative Logic : XC651A3 Series Positive Logic : XC651A4 Series Voltag...

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SeekIC No. : 004547998 Detail

XC651A: Features: Independent power supply for each built-in block :Each of the following built-in blocks is operated by a separate power supply : PFM controlled, step-up DC/DC converter ( PFM DC/DC ) 5 lev...

XC651A Data Sheet

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Part Number:: XC651A
Supply Ability:: 5000

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Product Details

Description

Features:

Independent power supply for each built-in block :
Each of the following built-in blocks is operated by a separate power supply :
      PFM controlled, step-up DC/DC converter ( PFM DC/DC )
      5 level window comparator ( MWVD )
      Negative Logic : XC651A3 Series
      Positive Logic : XC651A4 Series
      Voltage detector 1 with built-in delay circuit ( VD1 )
      Voltage detector 2 ( VD2 )
Highly accurate set-up voltage :
   PFM controlled, step-up DC/DC converter : set-up voltage accuracy ± 2.5%
   5 level window comparator : set-up voltage accuracy ± 2%
   Voltage detectors 1, 2 : set-up voltage accuracy ± 2%
Set-up voltage range :
     PFM controlled, step-up DC/DC converter : 2.0V to 3.0V ( selectable in 0.1V steps)
     5 level window comparator : 1.1V to 2.5V * ( selectable in 0.1V steps )
     Voltage detectors 1, 2 : 0.9V to 3.0V ( selectable in 0.1V steps )
Operational voltage range :0.9V to 6.0V
Small Package :TSSOP-16

Application

􀋔 Battery Powered Equipment
􀋔 Various Portable Equipment

Pinout

Connection Diagram

Specifications

PARAMETER	SYMBOL	RATINGS	UNITS
Output Voltage	V_OUT	9	V
Lx Pin Voltage	V_LX	9	V
Lx Pin Current	I_LX	400	mA
EXT Pin Voltage	V_EXT	-0.3 to V_OUT+ 0.3	V
EXT Pin Current	I_EXT	± 50	mA
EN Input Voltage	V_EN	-0.3 to V_OUT+ 0.3	V
MWVDIN Input Voltage	MWVD_IN	9	V
RIP Input Voltage	V_RIP	-0.3 to MWVD_IN+ 0.3	V
MWOUT Output Voltage	VM_WOUT	9	V
MWOUT Output Current	I_MWOUT	50	mA
VIN Input Voltage	V_IN	9	V
V_DET Output Voltage	V_DET	9	V
V_DET Output Current	I_DET	50	mA
CD Input Voltage	V_CD	-0.3 to V_IN1 + 0.3	V
Continuous Total Power Dissipation	P_d	350	mW
Operating Ambient Temperature	T_opr	-30 ~ +80
Storage Temperature	T_stg	-40 ~ +125

Description

The XC651A series are step-up DC/DC converter and multi voltage detector IC s. CMOS processes and laser trimming technology provide high accuracy and low power consumption.

The XC651A comprises of a PFM controlled step-up DC/DC converter, a voltage detector with 4 x 5 level window comparators built-in, plus 2 other voltage detectors. The step-up DC/DC converter's EN pin ( chip enable ) provides power consumption savings when the step-up operations are not operating ( stand-by mode ). The series is available in a small TSSOP-16 package.

XC651A

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