AIC AIC1630ACS

AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
FEATURES
Default +5V Output Voltage.
Adjustable Output Voltage with Two Resistors.
DESCRIPTION
The AIC1630A is a DC-DC converter designed to
drive an external power switch for more flexibility,
especially in higher voltage and larger power
applications. Typically six components are required
to set up a step up configuration easily achieving
efficiency beyond 80%. A few more components
are required to set up a step down configuration
delivering 4A load current with 83% typical
efficiency, 86% at 2A load, and 300µA quiescent
current.
Power-Saving Shutdown Mode (7µA typical).
120KHz Switching Rate.
On-Chip Low Battery Detector.
APPLICATIONS
Palmtop & Notebook Computers.
Battery Charger Supply.
Cellular Telephone.
LCD Contrast Supply.
Flash Memory Programmer.
Battery Backup Supplies.
Portable Instruments.
The output voltage can be internally set to 5V or
externally set to an arbitrary value below
breakdown voltage of the power switch. Logiccontrolled shutdown mode is provided for power
saving. The low battery detector can be also
configured as a linear regulator.
120KHz switching rate reduces the inductor size.
Inductors of 25µH to 50µH inductance are
recommended for most applications.
TYPICAL APPLICATION CIRCUIT
+VIN
100Ω
+
50µH
R3
L
LOAD
SD
VOUT
VIN
LBI
EXT
LBO
R1
5nF C2
2SC4672
+VOUT
100µF
C3
D1
1N5819
C1
100µF
Q1
1
GND
270Ω
R4
FB
AIC1630A
EXT
R2
INT
Note : VIN ≥ 1.8V , VOUT ≤ 7V
High Efficiency Step-Up DC/DC Converter
ORDERING INFORMATION
AIC1630A XX
ORDER NUMBER
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
TEMPERATURE RANGE
C=0°C~70°C
AIC1630ACN
(PLASTIC DIP)
AIC1630ACS
(PLASTIC SO)
PIN CONFIGURATION
TOP VIEW
SD 1
8 VOUT
VIN
2
7 LBI
EXT
3
6 LBO
GND 4
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
5 FB
1
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ………………………..……………………………………………… 7.0V
DC Voltage Applied On All Other Pins ………………………………………………. 7.0V
Operating Temperature Range ………………………………………………… 0°C~70°C
Storage Temperature Range ……………………………………………… -65°C ~150°C
TEST CIRCUIT
Refer to Typical Application Circuit.
ELECTRICAL CHARACTERISTICS
PARAMETER
(VIN=3.0V, Ta=25°°C, unless otherwise specified.)
TEST CONDITIONS
Input Voltage
Default Output Voltage
MIN.
TYP.
MAX.
UNIT
7
V
5
5.2
V
105
140
µA
7
15
µA
1.8
IL=200mA
4.8
Switch Off Current
Shutdown Mode Current
Recovery Time from Shutdown
VIN=2.5V, IL=200mA
0.4
mS
Efficiency
IL=300mA
Fig. 1 in Appl. Examples
85
%
Line Regulation
VIN=2.2~3.3V
VOUT=5V, IL=100mA
0.6
%VOUT
Load Regulation
IL=10mA~500mA
VOUT=5V
2.5
%VOUT
Oscillator Frequency
90
120
150
KHz
LBI Pin Trip Point
1.17
1.22
1.27
V
FB Threshold Voltage
0.598
0.617
0.636
V
EXT Pin Driving Capability
LBO “ON Resistance”
Pin 8=5V, Pin 3= 0.85V
Sourcing
Sinking
80
50
mA
mA
VIN=2V
45
Ω
Input Pin Bias Current
10
nA/Pin
Output Pin Leakage
10
nA/Pin
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
2
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
TYPICAL PERFORMANCE CHARACTERISTICS
Ext Pin Sourcing Capability vs Temperature
Ext Pin Sourcing Capability
90
85
VOUT=5V
80
80
VOUT=5V
Ta=25°C
IEXT
60
IEXT (mA)
(mA)
70
50
70
60
Ext Pin Voltage=0.85V
50
40
VOUT=3V
30
40
20
30
0.6
0.8
1
1.2
1.4
EXT Pin Voltage (V)
1.6
1.8
VOUT=3V
0
2
10
50
60
70
80
55
80
53
Ta=25°C
75
Ext Pin Voltge=0.85V
51
70
49
VOUT=5V
65
IEXT (mA)
IEXT (mA)
40
Ext Pin Sinking Capability vs Temperature
Ext Pin Sinking Capability
60
55
VOUT=3V
50
45
43
41
39
40
37
0.6
0.8
1
1.2
VOUT=5V
47
45
1.4
1.6
1.8
35
2.0
VOUT=3V
0
10
20
30
40
50
60
EXT Pin Voltage (V)
Temperature(°C)
Switch off Supply Current vs Input Voltage
Switch Off Supply Current vs Temperature
70
80
120
110
105
115
Ta=25°C
100
110
VIN=3V
IS (µA)
IS (µA)
30
Temperature (°C)
85
35
20
95
105
90
100
85
95
80
75
90
1.5
2
2.5
3
3.5
4
4.5
5
0
10
20
30
40
50
60
70
80
Temperature (°C)
VIN (V)
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
3
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED)
Shutdown Mode Supply Current vs Temperature
Shutdown Mode Supply Current vs Input Voltage
8.2
9.4
8
9
VIN=3V
Ta=25°C
8.6
IS (µA)
IS (µA)
7.8
7.6
8.2
7.4
7.8
7.2
7.4
7
1
1.5
2
2.5
3
VIN (V)
3.5
4
4.5
7
5
0
10
20
40
50
60
70
80
Oscillator Frequency vs Temperature
130
123
120
122
VIN=3V
Frequency (KHz)
Frequency
(KHz)
Oscillator Frequency vs Input Voltage
110
121
Ta=25°C
100
120
90
119
80
118
70
117
60
1
1.5
2
2.5
3
3.5
4
4.5
5
0
10
20
30
40
50
60
70
80
Temperature (°C)
VIN (V)
30
Temperature (°C)
BLOCK DIAGRAM
-
SD
100mV
VOUT
Shutdow n
+
LBI
VIN
FB EXT= LOW
EXT
OSC
+
1.22V
+
LBO
0.628V
FB EXT= HIGH
GND
+
-
FB
100mV
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
4
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
PIN DESCRIPTION
PIN 1: SD
- The AIC1630A goes in shutdown
mode and consumes less than 10µ
A when SD pin is pulled to ground
and it goes in normal operating
mode when the SD pin is pulled to
a positive voltage above 100mV.
PIN 2: VIN
PIN 4: GND - Ground.
- The noninverting input of the
battery low detector, of which the
inverting input is internally connects
to 1.22V voltage reference.
PIN 8: VOUT- The output voltage feedbacks to the
IC through this pin. If output voltage
was externally set, the VOUT pin
can be tied to any low impedance
node with voltage between the
external power switch threshold
and 7V
the
R1
VOUT
=
-1
R2 0.628
Resistor connected between FB pin
and ground.
PIN 7: LBI
- Output voltage can either be
internally set to 5 volt by grounding
FB pin, or be externally set to an
arbitrary voltage by applying to FB
pin the divider voltage of two divider
resistors.
by
R2=
PIN 6: LBO - Open drain output of the battery low
detector, with 45Ω “ON resistance”
at VIN=2V. It is pulled low when the
voltage on LBI pin is below 1.22V.
PIN 3: EXT - Push-pull drive output to drive
external power switch.
VOUT voltage is given
following equation:
R1=Resistor connected between
FB pin and VOUT pin.
VOUT=Output voltage to be set.
- Input supply.
PIN 5: FB
where
APPLICATION EXAMPLES
95
90
100Ω
VIN
+
L
50µH
C1
100µF
R3
1N5819
5nF C2
C3
2SC4672
Q1
+
100µF
D1
LOAD
270Ω
R4
SD
VOUT
VIN
LBI
EXT
LBO
GND
FB
AIC1630A
Efficiency (% )
VOUT
(+5V)
V IN= 4.5V
85
80
V IN= 2.2V
V IN= 3V
V IN= 3.3V
75
V IN= 2V
70
65
60
0
100
200
300
400
500
600
700
800
Load Current (mA)
Fig. 1 5V Output Step-Up Converter
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
5
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
APPLICATION EXAMPLES
(CONTINUED)
85
100Ω
VIN
(+12V)
VIN=5V
R3
VIN=4.5V
+
C1
VOUT
SD
180K
220µF
L
VIN
47µH
D2
1N5819
D1
+
FB
GND
1K
2SC4672
Q1
C3
LBO
EXT
80
VIN=3.3V
VIN=2.75V
75
1N4148
100µF
OS-CON
LOAD
R1
LBI
Efficiency (%)
VOUT
10K
R2
VIN=2.25V
70
AIC1630A
R4
0
30
60
90
120
150
180
210
240
270
Load Current (mA)
Note :
VIN ≥ 2.2V
Fig. 2 12V Output Step-Up Converter for Flash Memory
95
V IN = 2 0 V
VS(+3/5V)
VOUT
(+36V)
90
C1
2SC4672
Q1
C3
33µF
LBO
EXT
D1
+
17.8K
AIC1630A
R3
85
V IN = 1 2 V
80
V IN = 8 V
V IN = 6 V
75
FB
GND
120Ω
R1
LBI
VIN
1N5819
LOAD
1M
47µF
220µH
L
V IN = 1 6 V
VOUT
SD
Efficiency (% )
+
VIN
V s= 5 V
V IN = 5 V
R2
70
0
10
20
30
40
50
60
70
Load Current (mA )
Fig. 3 36V Output Step-Up Converter for Color LCD
88
VS (+3/5V)
D1
1N5819
C4
+
SD
C1
C2
47µF
+ 47µF
2SC4672
Q1
+
0.1µF
1N5819
D2
LOAD
150µH
10µF
1N5819
VOUT
(-24V) C3
L
D3
V IN = 1 5 V
86
C6
5nF
1.2K R3
VOUT
VIN
LBI
EXT
LBO
GND
FB
AIC1630A
C5
5nF
90K
R1
V IN = 1 0 V
84
Ef ficiency (% )
VIN
V IN = 2 0 V
82
V IN = 5 V
80
78
76
74
2.4K
R2
V s= 5 V
72
70
0
5
10
15
20
25
30
35
40
45
Load Current (m A )
Fig. 4 -24V Output Inverting Converter for LCD
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
6
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
APPLICATION EXAMPLES
(CONTINUED)
78
VIN
+
C3
2SC4672
Q1
+
5nF
+
10µF
10µF
C2
D2
120Ω
150Ω
R4
R3
1N5819
LOAD
C4 + 33µF
90K
VIN
LBI
EXT
LBO
V IN= 4V
72
V IN= 3V
70
R1
68
66
64
62
FB
GND
2.4K
AIC1630A
D4
1N5819
D3
VOUT
SD
C1
74
Efficiency (% )
150µH
D1
1N5819
VOUT
(-24V) C5
220µF
L
V IN= 5V
Vs= 3V
76
VS (+3/5V)
V IN= 2V
60
R2
58
56
1N4148
0
5
10
15
20
25
Load Current (mA)
Fig. 5 2V Input 20mA Load -24V Output Inverting Converter for LCD
95
VIN
+
220µF
C3
L
10µF
C5
D2
C4
+
47µF
C2
120Ω
430Ω
R4
VIN
LBI
EXT
LBO
R3
GND
1N5819
D3
+
47µF
VOUT
SD
2SC4672
Q1
+
90
C1
10µF
180K
R1
FB
AIC1630A
1N5819
VOUT
(-12V)
+
50µH
D1
1N5819
V IN= 20V
VS (+3/5V)
Efficiency (% )
VOUT
(+12V)
10K
V IN= 16V
85
V IN= 12V
80
V IN= 8V
V IN= 6V
75
R2
Vs= 5V
V IN= 5V
D4
1N4148
70
0
10
20
30
40
Load Current (mA)
50
60
70
Fig. 6 12V Dual Output Converter for computer for computer Interfacing
SI9430DY
R3
100K
+
100µF C1
5.1V
ZD1
R4
270Ω
9014
Q1
D1
91
+
50µH
C2
220µF
V OUT
(+5V)
87
VIN= 12V
85
+
10µF
C3
680P
R5
SD
VOUT
LBI
R1
45K
C4
EXT
LBO
GND
FB
36K
Quicient Current = 300µA
V IN= 8V
83
VIN
MPSA13
89
Efficiency (% )
V IN
L
MBR360
Q2
L
O
A
D
R2
6.4K
AIC1630A
81
VIN= 16V
VIN= 20V
79
77
75
0
1
1.5
2
2.2
2.5
3
3.5
4
Load Current (A)
Fig. 7 5V Output Step-Down Converter -1
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
7
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
APPLICATION EXAMPLES
L
100µF C1
Q1
5.1V 9014
ZD1
270Ω
R4
Q2
Q3
1N4148
9014
R3
100K
+
MBR360
SI9430DY
VIN
(CONTINUED)
50µH
D1
VOUT
(+5V)
+
220µF
90
V IN= 8V
C2
Efficiency (% )
D2
+
10µF
C3
SD
VOUT
VIN
C4
MPSA13
680P
R5
LBO
GND
FB
36K
L
O
A
D
R1
45K
LBI
EXT
V IN= 12V
85
V IN= 16V
V IN= 20V
R2
6.4K
AIC1630A
80
0
Quicient Current = 300µA
1
2
3
4
Load Current (A)
5
Fig. 8 5V Output Step-Down Converter -2
+
ZD1
4.7V
VIN
LBI
EXT
LBO
GND
FB
AIC1630A
D3
R5
RIF
+
0.82
100µF
C4
0.1µF
C5
VBT
+
22K C3
R7
C3
10nF
VREF
GND
VDD
TIMER
VOUT
MODE
LED
1.5K
R12
1.5K
R13
AIC1761/1766
100K
R6
Note:
R9
R11
120K
12K
R2
33K
100µF C1
R3
+
C2
100k
33K
VBAT
R4
220µF
IRFD020
Q1
SD
VOUT
1n4148
R1
240K
D2
150
+VIN
(VIN<VBAT)
220
R10
Trickle
BATTERY PACK
Charging
1N5819
4.7µF
50µH
L1
2A FUSE
1N4148
D3
VIN ≥ 2.2V
Charging current =0.8A, Auto-Cut-Off at 0.75/0.25% -∆V point and Fault Conditions.
(RIF sets the Charging Current)
VIN must be lower than VBAT.
Short Circuit Condition is protected with a 2A Fuse.
Fig. 9 Step-Up Rechargeable Battery Charger
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
8
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
APPLICATION EXAMPLES (CONTINUED)
LBO
GND
FB
Q2
12K
R5
2N3904
R2
750
AIC1630A
4.7V
ZD1
C1
LBI
EXT
RIT
75K
R6
330
2N2222
Q5
2N3904
Q4
+
100K
R10
C2
+
+VIN
(+VIN can be either higher or lower
than the battery voltage)
220
R12
100µF
C4
120K
22K
R9
RIF
0.82
R11
0.1µF
C5
+
C3
4.7µF
= 0.8A @VIN<VBAT
=(VIN - VBAT - 0.5)/0.82 @VIN>VBAT
Trickle charge Current = 30mA.
(RIF sets Fast Charge Current, RIT sets Trickle Charge Current)
Typical Efficiency = 75%.
With Short Circuit Protection.
Fig. 10
Step-Up/Down Rechargeable Battery Charger
VBT
VREF
GND
VDD
TIMER VOUT
MODE
LED
1.5K
R14
AIC1761/1766
120K
R15
Note:
1.5K
R13
Trickle
+
VOUT
VIN
240K
R4
47K
R3
220µF
SD
BATTERY PACK
TIP32C
Q3
Charging
100µF
50µH
150
R1
IRFD020
Q1
L1
IN5819 D2
VBAT
Fast Charge Current
PHYSICAL DIMENSIONS
8 LEAD PLASTIC DIP
8 LEAD PLASTIC SO
4.80±0.20
9.3±0.3
6.0±0.2
3.8±0.2
6.2±0.2
8.0±0.5
0.6±0.3
2.5±0.1
10°max
8.5±1.0
0.5±0.1
2.54±0.10
0.45±0.10
0.2 ± 0.1
3.2±0.3
1.5±0.2
0.25±0.10
1.27±0.10
3.3±0.1
0.015X45°
8° max.
UNIT: mm
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
TEL: (8863)577-2500 FAX:(8863)577-2510
9