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Preliminary
CMOS Low Power Consumption PFM Controlled, Step-Up DC/DC Converter 5 Level Window Comparator Voltage Detector x 2 ( Independent Power Supply ) TSSOP-16 Package
Applications
Battery Powered Equipment Various Portable Equipment
General 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.
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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 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 * Note : The set-up voltage of the 5 level window comparator cannot be freely set-up due to the limitations of the circuit. Please also note that the set-up voltage range of MWVD1 is 1.0V to 1.8V.
Preliminary Pin Configuration Pin Assignment
1 2 3 4 5 6 7 8
16 15 14
TSSOP-16
TOP VIEW
13 12 11 10 9
PIN NUMBER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
PIN NAME MWVDIN RIP MWOUT1 MWOUT2 MWOUT3 MWOUT4 CD VIN1 VDET1 VDET2 VIN2 EN VSS Lx EXT VOUT
FUNCTION MWVD detect, MWVD current MWVD ripple exclusion capacitor connection MWVD output 1 MWVD output 2 MWVD output 3 MWVD output 4 VD1 delay time set-up capacitor connection VD1 detect, VD1 current VD1 output VD2 output VD2 detect, VD2 current DC/DC enable Ground pin ( common ) DC/DC built-in transistor switch output DC/DC external transistor drive output DC/DC output voltage monitor, DC/DC current
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Block Diagrams 1) Overall Composition
MWVDIN RIP MW OUT1 MW OUT2 MW OUT3 MW OUT4 CD VIN1
1 2 3 4 5 6
4.VD2 2.MWVD 1.PFM DC/DC
16 15 14 13 12 11 3.VD1 10
VOUT EXT LX
Note 1
VSS EN VIN2 VDET2 VDET1
7 8
9
Note 1 : The VSS pin is common to each block. Note 2 : The VDD pin is independent of each block.
Preliminary 2) PFM DC/DC
VDD LX
Buffer VLX Limit Vref
Note 2
VOUT +
Note 1
VSS
2step PFM Control OSC
+ -
EXT
DC/DC Enable
EN
Note 1 : The VSS pin is common to each block. Note 2 : VDD is independent for each block.
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3) MWVD
VDD
Note 2
MWVDIN
RRIP
Note 3
MWOUT4
RIP
MWOUT3
Note 3
MWOUT2
Note 3
Note 3
MWOUT1
Note 1
VSS Vref
Note 1 : The VSS pin is common to each block. Note 2 : VDD is independent for each block. Note 3 : Applies to the XC6514 Series (Positive Logic) only.
Preliminary 4) VD 1
VDD
Note
2
VIN1 Vref VDET1
+ Delay Circuit
Note 1
-
VSS
CD
Note 1 : The VSS pin is common to each block. Note 2 : VDD is independent for each block.
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5) VD 2
VDD Note 2
VIN2 Vref VDET2
+
-
Note 1
VSS
Note 1 : The VSS pin is common to each block. Note 2 : VDD is independent for each block.
Preliminary Absolute Maximum Ratings
PARAMETER Output Voltage Lx Pin Voltage Lx Pin Current EXT Pin Voltage EXT Pin Current EN Input Voltage MWVDIN Input Voltage RIP Input Voltage MWOUT Output Voltage MWOUT Output Current VIN Input Voltage VDET Output Voltage VDET Output Current CD Input Voltage Continuous Total Power Dissipation Operating Ambient Temperature Storage Temperature SYMBOL VOUT VLX ILX VEXT IEXT VEN MWVDIN VRIP VMWOUT IMWOUT VIN VDET IDET VCD Pd Topr Tstg CONDITIONS 9 9 400 -0.3 to VOUT + 0.3 50 -0.3 to VOUT + 0.3 9 -0.3 to MWVDIN + 0.3 9 50 9 9 50 -0.3 to VIN1 + 0.3 350 -30 to +80 -40 to +125 Ta=25 OC UNITS V V mA V mA V V V V mA V V mA V mW
O O
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C C
Electrical Characteristics (XC651A4AA3VR)
(note that the above is a sample part number and that actual part numbers will differ)
Set-Up Voltage Ta=25 OC BLOCK 1. PFM DC/DC 2. MWVD PARAMETER output voltage MWOUT1 detect voltage MWOUT2 detect voltage MWOUT3 detect voltage MWOUT4 detect voltage detect voltage 1 detect voltage 2 SYMBOL VOUT VDFMW1 VDFMW2 VDFMW3 VDFMW4 VDF1 VDF2
SET-UP VOLTAGE VALUE
UNITS V V V V V V V
3. VD1 4.VD2
2.500 1.275 1.245 1.210 1.060 1.500 0.950
Preliminary
1. PFM DC/DC
VOUT=2.5V
Ta=25 OC SYMBOL VOUT VIN VST VHLD IDD1 IDD2 RSWON ILXL VLXLMT
When the oscillator frequency is more than double Ext. components connected, IOUT=1mA Ext. components connected, IOUT=1mA Output Voltage x 0.95 applied to VOUT Output Voltage + 0.5V applied to VOUT Output Voltage x 0.95 applied to VOUT,VLX=0.4V No ext. components, VOUT=VLX=10V Output Voltage x 0.95 applied to VOUT, Output Voltage applied to LX, Ext. components connected
PARAMETER Output Voltage Operating Voltage Operating Start-Up Voltage Operating Hold Voltage Supply Current 1 Supply Current 2 Lx Switch ON Resistance Lx Leak Current Lx Control Voltage EXT H ON Resistance EXT L ON Resistance Duty Ratio 1 Duty Ratio 2 Max Oscillator Frequency Stand-by Current EN H Voltage EN L Voltage EN H Current EN L Current Efficiency (note 1)
CONDITIONS
MIN
TYP
MAX
UNITS V V V V A A A V % % kHz A V V A A %
CIRCUIT 1 1 1 2 2 2 3 2 2 2 2 1 2 2 4 4 4 4 1
2.438 2.500 2.563 0.7 0.7 0.8 35.0 2.5 9.1 140 140 75 62 100 0.2 70 6.0 0.9 56.9 5.0 13.7 1.0 1.1 210 210 80 115 1.0 0.2 0.25 - 0.25 -
REXTH REXTL DTY1 DTY2
Output Voltage x 0.95 applied to VOUT, VEXT=VOUT - 0.4V Output Voltage x 0.95 applied to VOUT, VEXT=0.4V Output Voltage x 0.95 applied to VOUT, EXT waveform measurement Ext. components connected, IOUT=1mA, LX ON time measurement
70 85 0.7 -
MAXFOSC Output Voltage x 0.95 applied to VOUT, EXT waveform measurement ISTB VENH VENL IENH IENL EFFI
Output Voltage x 0.95 applied to VOUT, VEN=0V Output Voltage x 0.95 applied to VOUT, EXT oscillation judgement Output Voltage x 0.95 applied to VOUT, EXT stopped judgement Output Voltage x 0.95 applied to VOUT, VEN=VOUT Output Voltage x 0.95 applied to VOUT, VEN=0V Ext. components connected
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Conditions : Unless indicated, connect EN to VOUT, VIN=Output Voltage x 0.6, IOUT=10mA
Note : 1. EFFI={ [ (output voltage) x (output current) ] / [ (input voltage) x (input current) ] } x 100
Preliminary
2. MWVD (Positive Logic)
Ta=25 OC PARAMETER MW OUT 1 Detect Voltage MW OUT 2 Detect Voltage MW OUT 3 Detect Voltage MW OUT 4 Detect Voltage MW OUT 1 Hysteresis Width MW OUT 2 Hysteresis Width MW OUT 3 Hysteresis Width MW OUT 4 Hysteresis Width Supply Current Operating Voltage MW OUT 1 Output Current MW OUT 2 Output Current MW OUT 3 Output Current SYMBOL VDFMW1 VDFMW2 VDFMW3 VDFMW4 VHYSMW1 (Release Voltage=VDFMW1 + VHYSMW1 ) VHYSMW2 (Release Voltage=VDFMW2 + VHYSMW2) VHYSMW3 (Release Voltage=VDFMW3 + VHYSMW3) VHYSMW4 (Release Voltage=VDFMW4 x (1 + VHYSMW4 / 100) ) ISSMW MWVDIN IOUTMW1 IOUTMW2 IOUTMW3 IOUTMW4 TDLYMW1 TDLYMW2 TDLYMW3 TDLYMW4 RRIP Nch VDS=0.5V, MWVDIN =0.9V Nch VDS=0.5V, MWVDIN =0.9V Nch VDS=0.5V, MWVDIN =0.9V Nch VDS=0.5V, MWVDIN =0.9V Release Voltage Release Voltage Release Voltage Release Voltage RIP=1V, MWVD IN =0V Output Inversion, RIP open Output Inversion, RIP open Output Inversion, RIP open Output Inversion, RIP open MWVD IN =2.0V CONDITIONS MIN TYP MAX UNITS V V V V mV mV mV % A V mA mA mA mA msec msec msec msec k CIRCUIT 5 5 5 5 5 5 5 5 6 7 7 7 7 8 8 8 8 9
1.250 1.275 1.301 1.220 1.245 1.270 1.186 1.210 1.234 1.039 1.060 1.081 4 4 4 2 0.9 0.18 0.18 0.18 0.18 250 10 10 10 5.0 1.8 1.8 1.8 1.8 500 8 20.0 6.0 0.4 0.4 0.4 0.4 1000
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MW OUT 4 Output Current MW OUT 1 Delay Time MW OUT 2 Delay Time MW OUT 3 Delay Time MW OUT 4 Delay Time Ripple Rejection Resistance
Special Parameter : VDFMW1 V DFMW2 V DFMW3
Preliminary
3. VD 1
VDF1=1.5V
Ta=25 OC SYMBOL VDF1 VHYS1 ISS1 VIN1 IOUT1 TLH1 Nch VDS=0.5V, VIN1=0.9V CD=3.3 F, V IN1=VDF1 x 0.9 VDF1 x 1.1 (Release Voltage=VDF1 x (1 + V HYS1 / 100) ) V IN1=2.0V CONDITIONS MIN TYP MAX UNITS V % A V mA msec CIRCUIT 5 5 6 7 8
PARAMETER Detect Voltage VD1 Hysteresis Width VD1 Supply Current Operating Voltage Output Current VDET1 VDET1 L H Delay Time
1.470 1.500 1.530 2 0.7 0.22 500 1.5 2.2 1000 8 3.0 6.0 2000
VDET1 H
L Delay Time
THL1
CD=3.3 F, V IN1=VDF1 x 1.1
VDF1 x 0.9
20
50
100
msec
8
4. VD 2
VDF2=0.95V
Ta=25 OC SYMBOL VDF2 VHYS2 ISS2 VIN2 IOUT2 TDLY2 Nch VDS=0.5V, VIN2=0.9V Release Voltage Output Inversion (Release Voltage=VDF2 x (1 + VHYS2 / 100) ) VIN2 =2.0V CONDITIONS MIN TYP MAX UNITS V % A V mA msec CIRCUIT 5 5 6 7 8
PARAMETER Detect Voltage VD2 Hysteresis Width VD2 Supply Current Operating Voltage Output Current V DET2 Delay Time V DET2
0.931 0.950 0.969 2 0.7 0.18 1.5 1.8 8 3.0 6.0 0.2
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Preliminary
Measurement Circuits
Measurement Circuit 1
waveform measurement
waveform measurement
XC651 MWVDIN RIP MWOUT1 MWOUT2 MWOUT3 VOUT EXT LX VSS EN VIN2 VDET2 VDET1
SD
L
VIN
RL
CL
MWOUT4 CD VIN1
V
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Measurement Circuit 2
XC651
waveform measurement
200
VOUT EXT LX VSS EN VIN2
A
MWVD IN RIP MW OUT1 MW OUT2
10
VOUT
MW OUT3 MW OUT4 CD VIN1
VDET2 VDET1
V LX' EN
V EXT '
Measurement Circuit 3
XC651
MWVD IN RIP MWOUT1 VOUT EXT LX VSS EN VIN2 VDET2 VDET1
VOUT
MWOUT2 MWOUT3 MWOUT4 CD VIN1
A
VLX
Preliminary
Measurement Circuit 4
waveform measurement
XC651
MWVD IN RIP MWOUT1
VOUT
EXT LX VSS EN VIN2
VDET2 VDET1
VOUT
MWOUT2 MWOUT3 MWOUT4 CD VIN1
A
VEN
Measurement Circuit 5
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XC651
100k
VOUT EXT LX V SS EN V IN2 V DET2 V DET1
100k
MWVDIN VIN1 VIN2
P
P P P
MWVD IN RIP MWOUT1 MWOUT2 MWOUT3 MWOUT4 CD V IN1
Voltage measurement point connected to
P
P P
V
Measurement Circuit 6
XC651
A
100k
MWVD IN RIP MWOUT1 MWOUT2
VOUT EXT LX VSS EN VIN2 VDET2 VDET1
MWVDIN VIN1 VIN2
MWOUT3 MWOUT4 CD VIN1
100k
Preliminary
Measurement Circuit 7
XC651 MWVDIN VIN1 VIN2
P P P P
MWVDIN RIP MWOUT1 MWOUT2 MWOUT3 MWOUT4 CD VIN1 VOUT EXT LX VSS EN VIN2 VDET2 VDET1
Voltage measurement point connected to
P
A
P P
VDS
V
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Measurement Circuit 8
100k
XC651
P P
MWVDIN RIP MWOUT1 MWOUT2 MWOUT3 MWOUT4 CD VOUT EXT LX VSS EN VIN2 VDET2 VDET1
MWVDIN VIN1 VIN2
100k
Voltage measurement point connected to
V
P P
P
P P
V
CD 3.3 F
+
VIN1
Measurement Circuit 9
XC651
MWVD IN RIP MWOUT1 MWOUT2 VOUT EXT LX VSS EN VIN2 VDET2 VDET1
A
RIP
MWOUT3 MWOUT4 CD VIN1

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