Series
PFM Controlled,Step‐Up DC/DC Converter +Multi Voltage Detector
◆CMOS Low Power Consumption
■Applications
◆PFM Controlled, Step-Up DC/DC Converter
●Battery Powered Equipment
◆5 Level Window Comparator
●Various Portable Equipment
◆Voltage Detector × 2 ( Independent Power
Supply )
◆TSSOP-16 Package
■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.
■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 ~ 3.0V ( selectable in 0.1V steps)
5 level window comparator : 1.1V ~ 2.5V * ( selectable in 0.1V steps )
Voltage detectors 1, 2 : 0.9V ~ 3.0V ( selectable in 0.1V steps )
Operational voltage range :
0.9V ~ 6.0V
Small Package :
TSSOP-16
* Note :
10
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 ~ 1.8V.
669
XC651A
Series
■Pin Configuration
MWVDIN
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
16 VOUT
1
15 EXT
RIP 2
MWOUT1
■Pin Assignment
14 LX
3
TSSOP-16
MWOUT2
4
MWOUT3
5
MWOUT4
6
11 VIN2
CD
7
10 VDET2
VIN1
8
9 VDET1
TOP VIEW
13 VSS
12 EN
■Product Classification
PIN NAME
MWVD IN
RIP
MW OUT1
MW OUT2
MW OUT3
MW OUT4
CD
V IN1
V DET1
V DET2
V IN2
EN
V SS
Lx
EXT
V OUT
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
●Ordering Information
ＸＣ６５１Ａ □□□□□□
q
SYMBOL
q
DESCRIPTION
Voltage Characteristics :
Based on internal standards
we
SYMBOL
DESCRIPTION
Package Type
Ｖ：ＴＳＳＯＰ−１６
Device Orientation
Ｒ：Em bossed Tape (Right)
Ｌ：Em bossed Tape (Left)
w
e
■Packaging Information
●TSSOP-16
C
E
E1
L
10
SIZE mm
MIN
TYP
A1
0.03
0.07
A2
A
D
A2
0.95
b
0.15
0.22
0.30
C
0.12
0.17
0.22
D
4.9
5.10
5.30
E
6.20
6.40
6.60
E1
4.30
4.40
4.50
A1
670
L
b
y
y
0.10
1.05
0.65
e
e
MAX
1.10
A
0.40
0.50
0.60
0.10
XC651A
Series
■Marking
●TSSOP-16
4
3
2
1
7
11
6
10
5
9
1 ∼ ：Represents
4
the diffusion lot.
11
5 ∼ ：Represents
the product series
Example）XC651A1004VR
↑
↑
4 ∼ 11
8
TSSOP-16
(TOP VIEW)
■Block Diagrams
1) Overall Composition
16 VOUT
MWVDIN
1
RIP
2
MW OUT1
3
MW OUT2
4
13 VSS
MW OUT3
5
12 EN
MW OUT4
6
1.PFM DC/DC
15 EXT
14 LX
2.MWVD
Note 1)
10
11 VIN2
4.VD2
CD
7
VIN1
8
3.VD1
10 VDET2
9 VDET1
Note 1 : The VSS pin is common to each block.
Note 2 : The VDD pin is independent of each block.
671
XC651A
Series
2) PFM DC/DC
VDD Note 2
LX
VLX Limit
Vref
VOUT
Buffer
+
Note 1
VSS
2step PFM Control
OSC
+
-
DC/DC Enable
EXT
EN
Note 1 : The VSS pin is common to each block.
Note 2 : VDD is independent for each block.
3) MWVD
VDD Note 2
MWVDIN
RRIP
MWOUT4
RIP
Note 3
MWOUT3
Note 3
10
MWOUT2
Note 3
MWOUT1
Note 3
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.
672
XC651A
Series
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.
5) VD 2
VDD Note 2
VIN2
＋
Vref
VDET2
−
Note 1
VSS
10
Note 1 : The VSS pin is common to each block.
Note 2 : VDD is independent for each block.
673
XC651A
Series
■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
Ta=25 OC
UNITS
V
V
mA
V
mA
V
V
V
V
mA
V
V
mA
V
CONDITIONS
9
9
400
-0.3 ~ VOUT + 0.3
± 50
-0.3 ~ VOUT + 0.3
9
-0.3 ~ MWVDIN + 0.3
9
50
9
9
50
-0.3 ~ VIN1 + 0.3
Pd
350
Topr
Tstg
-30 ~ +80
-40 ~ +125
mW
O
O
C
C
■電気的特性 （ＸＣ６５１Ａ４ＡＡ３ＶＲ）
■Electrical
Characteristics (XC651A4AA3VR)
(note that the above is a sample part number and that actual part numbers will differ)
10
Set-Up Voltage
BLOCK
PARAMETER
SYMBOL
1. PFM DC/DC
Output Voltage
MWOUT1 detect voltage
MWOUT2 detect voltage
MWOUT3 detect voltage
MWOUT4 detect voltage
Detect Voltage 1
Detect Voltage 2
VOUT
VDFMW1
VDFMW2
VDFMW3
VDFMW4
VDF1
VDF2
2.500
1.275
1.245
1.210
1.060
1.500
0.950
2. MWVD
3. VD1
4.VD2
674
Ta=25 OC
SET-UP VOLTAGE
VALUE
UNITS
V
V
V
V
V
V
V
XC651A
Series
1. PFM DC/DC
Ta=25 OC
PARAMETER
SYMBOL
Output Voltage
VOUT
Operating Voltage
VIN
Operating Start-Up Voltage
Operating Hold Voltage
CONDITIONS
Ext. components connected
MIN
TYP
MAX
2.438 2.500 2.563
UNITS
CIRCUIT
V
1
-
-
6.0
V
-
VST
Ext. components connected, IOUT=1mA
-
0.8
0.9
V
1
VHLD
Ext. components connected, IOUT=1mA
0.7
-
-
V
1
Supply Current 1
IDD1
Output Voltage x 0.95 applied to VOUT
-
35.0
56.9
µA
2
Supply Current 2
IDD2
Output Voltage + 0.5V applied to VOUT
-
2.5
5.0
µA
2
Lx Switch ON Resistance
RSWON
Output Voltage x 0.95 applied to VOUT,VLX=0.4V
-
9.1
13.7
Ω
2
Lx Leak Current
ILXL
No ext. components, VOUT=VLX=10V
-
-
1.0
µA
3
0.7
-
1.1
V
2
Output Voltage x 0.95 applied to VOUT, Output Voltage applied to LX,
Lx Control Voltage
VLXLMT
When the oscillator frequency is more than double
EXT H ON Resistance
REXTH
Output Voltage x 0.95 applied to VOUT, VEXT=VOUT - 0.4V
-
140
210
Ω
2
EXT L ON Resistance
REXTL
Output Voltage x 0.95 applied to VOUT, VEXT=0.4V
-
140
210
Ω
2
Duty Ratio 1
DTY1
Output Voltage x 0.95 applied to VOUT, EXT waveform measurement
70
75
80
%
2
DTY2
Ext. components connected, IOUT=1mA, LX ON time measurement
1
Duty Ratio 2
Max Oscillator Frequency
MAXFOSC Output Voltage x 0.95 applied to VOUT, EXT waveform measurement
-
62
-
%
85
100
115
kHz
2
-
0.2
1.0
µA
2
Stand-by Current
ISTB
EN H Voltage
VENH
Output Voltage x 0.95 applied to VOUT, EXT oscillation judgement
0.7
-
-
V
4
EN L Voltage
VENL
Output Voltage x 0.95 applied to VOUT, EXT stopped judgement
-
-
0.2
V
4
EN H Current
IENH
Output Voltage x 0.95 applied to VOUT, VEN=VOUT
-
-
0.25
µA
4
EN L Current
IENL
Output Voltage x 0.95 applied to VOUT, VEN=0V
-
-
- 0.25
µA
4
Efficiency (note 1)
EFFI
Ext. components connected
-
70
-
%
1
Output Voltage x 0.95 applied to VOUT, VEN=0V
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
10
675
XC651A
Series
2. MWVD (Positive Logic)
Ta=25 OC
PARAMETER
SYMBOL
MW OUT 1 Detect Voltage
VDFMW1
MW OUT 2 Detect Voltage
VDFMW2
MW OUT 3 Detect Voltage
MW OUT 4 Detect Voltage
CONDITIONS
UNITS
CIRCUIT
1.250 1.275 1.301
V
5
1.220 1.245 1.270
V
5
VDFMW3
1.186 1.210 1.234
V
5
676
TYP
MAX
VDFMW4
1.039 1.060 1.081
V
5
MW OUT 1 Hysteresis Width
VHYSMW1 (Release Voltage=VDFMW1 + VHYSMW1 )
4
10
-
mV
5
MW OUT 2 Hysteresis Width
VHYSMW2 (Release Voltage=VDFMW2 + VHYSMW2)
4
10
-
mV
5
MW OUT 3 Hysteresis Width
VHYSMW3 (Release Voltage=VDFMW3 + VHYSMW3)
4
10
-
mV
5
MW OUT 4 Hysteresis Width
VHYSMW4 (Release Voltage=VDFMW4 x (1 + V HYSMW4 / 100) )
2
-
8
%
5
-
5.0
20.0
µA
6
0.9
-
6.0
V
-
Supply Current
ISSMW
Operating Voltage
MWVDIN
MW OUT 1 Output Current
IOUTMW1
Nch VDS=0.5V, MWVDIN =0.9V
0.18
1.8
-
mA
7
MW OUT 2 Output Current
IOUTMW2
Nch VDS=0.5V, MWVDIN =0.9V
0.18
1.8
-
mA
7
MW OUT 3 Output Current
IOUTMW3
Nch VDS=0.5V, MWVDIN =0.9V
0.18
1.8
-
mA
7
MW OUT 4 Output Current
IOUTMW4
Nch VDS=0.5V, MWVDIN =0.9V
0.18
1.8
-
mA
7
MW OUT 1 Delay Time
TDLYMW1
Release Voltage
Output Inversion, RIP open
-
-
0.4
msec
8
MW OUT 2 Delay Time
TDLYMW2
Release Voltage
Output Inversion, RIP open
-
-
0.4
msec
8
MW OUT 3 Delay Time
TDLYMW3
Release Voltage
Output Inversion, RIP open
-
-
0.4
msec
8
MW OUT 4 Delay Time
TDLYMW4
Release Voltage
Output Inversion, RIP open
Ripple Rejection Resistance
RRIP
MWVD IN =2.0V
RIP=1V, MWVD IN =0V
Special Parameter : VDFMW1 ≥ V DFMW2 ≥ V DFMW3
10
MIN
-
-
0.4
msec
8
250
500
1000
kΩ
9
XC651A
Series
3. VD 1
Ta=25 OC
VDF1=1.5V
PARAMETER
SYMBOL
Detect Voltage VD1
VDF1
Hysteresis Width VD1
VHYS1
CONDITIONS
MIN
TYP
MAX
1.470 1.500 1.530
(Release Voltage=V DF1 x (1 + V HYS1 / 100) )
Supply Current
ISS1
Operating Voltage
VIN1
Output Current VDET1
IOUT1
N-ch VDS=0.5V, VIN1=0.9V
V IN1=2.0V
2
-
UNITS
CIRCUIT
V
5
8
%
5
-
1.5
3.0
µA
6
0.7
-
6.0
V
-
0.22
2.2
-
mA
7
VDET1 L
H Delay Time
TLH1
CD=3.3 µF, V IN1=VDF1 x 0.9
V DF1 x 1.1
500
1000
2000
msec
8
VDET1 H
L Delay Time
THL1
CD=3.3 µF, V IN1=VDF1 x 1.1
V DF1 x 0.9
20
50
100
msec
8
MIN
TYP
MAX
UNITS
4. VD 2
PARAMETER
Ta=25 OC
VDF2=0.95V
SYMBOL
Detect Voltage VD2
V DF2
Hysteresis Width VD2
V HYS2
Supply Current
ISS2
CONDITIONS
0.931 0.950 0.969
CIRCUIT
V
5
(Release Voltage=VDF2 x (1 + V HYS2 / 100) )
2
-
8
%
5
V IN2 =2.0V
-
1.5
3.0
µA
6
Operating Voltage
V IN2
Output Current V DET2
I OUT2
N-ch VDS=0.5V, VIN2=0.9V
Delay Time V DET2
TDLY2
Release Voltage
Output Inversion
0.7
-
6.0
V
-
0.18
1.8
-
mA
7
-
-
0.2
msec
8
10
677
XC651A
Series
■Test Circuits
Measurement Circuit 1
waveform
measurement
waveform
measurement
SD
XC651
MWVDIN
RIP
RL
CL
V
L
VOUT
EXT
MWOUT1
LX
MWOUT2
VSS
MWOUT3
EN
MWOUT4
CD
VIN2
VDET2
VIN1
VDET1
VIN
Measurement Circuit 2
waveform
measurement
200Ω
XC651
A
VOUT
MWVDIN
RIP
VOUT
EXT
MWOUT1
LX
MWOUT2
VSS
MWOUT3
MWOUT4
10Ω
EN
VIN2
CD
VDET2
VIN1
VDET1
VLX'
EN
Measurement Circuit 3
10
XC651
MWVDIN
RIP
VOUT
LX
MWOUT2
VSS
MWOUT3
MWOUT4
678
VOUT
EXT
MWOUT1
A
EN
VIN2
CD
VDET2
VIN1
VDET1
VLX
VEXT'
XC651A
Series
Measurement Circuit 4
waveform
measurement
XC651
MWVDIN VOUT
RIP
EXT
MW OUT1
LX
VSS
MW OUT2
MW OUT3
EN
MW OUT4 VIN2
CD
VDET2
VIN1
VDET1
VOUT
A
VEN
Measurement Circuit 5
XC651
100kΩ
MWVD IN
VIN1
VIN2
MWVDIN
RIP
Ｐ
Ｐ
Ｐ
Ｐ
EXT
MW OUT1
LX
MW OUT2
VSS
MW OUT3
MW OUT4
100kΩ
VOUT
EN
VIN2
CD
VDET2
VIN1
VDET1
Voltage measurement
point connected to P
Ｐ
Ｐ
V
Measurement Circuit 6
10
XC651
A
100kΩ
MWVD IN
V IN1
V IN2
MWVD IN
RIP
VOUT
EXT
MW OUT1
LX
MW OUT2
VSS
MW OUT3
EN
MW OUT4
V IN2
CD
V DET2
VIN1
V DET1
100kΩ
679
XC651A
Series
Measurement Circuit 7
Voltage measurement
point connected to P
XC651
MWVDIN
VIN1
VIN2
MWVD IN
RIP
Ｐ
Ｐ
Ｐ
Ｐ
VOUT
EXT
MW OUT1
LX
MW OUT2
VSS
MW OUT3
EN
MW OUT4
A
VIN2
CD
VDET2
VIN1
VDET1
VDS
Ｐ
Ｐ
V
Measurement Circuit 8
100kΩ
XC651
100kΩ
MWVD IN
VIN1
VIN2
MWVDIN
RIP
Ｐ
Ｐ
V
Ｐ
Ｐ
CD
3.3μF
+
Measurement Circuit 9
XC651
10
MWVD IN
RIP
A
680
RIP
VOUT
EXT
MW OUT1
LX
MW OUT2
VSS
MW OUT3
EN
MW OUT4
VIN2
CD
V DET2
VIN1
V DET1
VOUT
EXT
MWOUT1
LX
MWOUT2
VSS
MWOUT3
EN
MWOUT4
VIN2
CD
VDET2
VIN1
VDET1
Voltage measurement
point connected to P
Ｐ
Ｐ
V