AIC1630ACS [AIC]
2-Cell, Step-Up DC/DC Converter Controller; 2节电池，升压型DC / DC转换器控制器
| 型号： | AIC1630ACS |
| 厂家： | 
ANALOG INTERGRATIONS CORPORATION |
| 描述： | 2-Cell, Step-Up DC/DC Converter Controller |
| 文件： | 总11页 (文件大小：371K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AIC1630
2-Cell, Step-Up DC/DC Converter Controller
ꢀ FEATURES
ꢀ DESCRIPTION
ꢀ Adjustable Output Voltage with Two Resistors
(AIC1630A).
The AIC1630 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 is internally set to 3V, 3.3V, 5V
or externally set to an arbitrary value below
breakdown voltage of the power switch. Logic-
controlled 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
+
R3
SD
VOUT
LBI
C1
L
D1
1N5819
VIN
5nF C2
+VOUT
3.3V
EXT
SGND
LBO
Q1
CGND
LOAD
270Ω
R4
AIC1630
Note : VIN
≥
1.8V , VOUT ≤ 7V
High Efficiency Step-Up DC/DC Converter
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1630-05 TEL: 886-3-5772500 FAX: 886-3-5772510
www.analog.com.tw
1
AIC1630
ꢀ ORDERING INFORMATION
AIC1630 XXX
PIN CONFIGURATION
ORDER NUMBER
AIC1630CN
TOP VIEW
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
AIC1630-3CN
AIC1630-5CN
VOUT
LBI
SD
VIN
1
2
3
4
8
7
6
5
)
(PLASTIC DIP
TEMPERATURE RANGE
EXT
LBO
AIC1630CS
C=0°C~+70°C
AIC1630-3CS
AIC1630-5CS
(PLASTIC SO)
SGND
CGND
OUTPUT VOLTAGE
DEFAULT: 3.3V
3: 3.0V
5: 5.0V
AIC1630ACN
(PLASTIC DIP
TOP VIEW
A: Adjustable
)
VOUT
LBI
SD
VIN
1
2
3
4
8
7
6
5
AIC1630ACS
EXT
GND
LBO
FB
(PLASTIC SO)
ꢀ ABSOLUTE MAXIMUM RATINGS
Supply Voltage ………………………..…………………………….……………………… 7.0V
DC Voltage Applied On All Other Pins ………………………..…………………………. 7.0V
Operating Temperature Range………………………….………………………… -20°C~80°C
Storage Temperature Range …………………………….…………………… -65°C ~150°C
ꢀ TEST CIRCUIT
Refer to Typical Application Circuit.
2
AIC1630
ꢀ ELECTRICAL CHARACTERISTICS (VIN=3.0V, Ta=25°C, unless otherwise
specified.)
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
Input Voltage
Default Output Voltage
1.8
7
V
IL=200mA
AIC1630
3.16
2.88
4.80
3.3
3.0
5.0
105
7
0.4
85
3.44
3.12
5.20
140
15
V
AIC1630-3
AIC1630-5
Switch Off Current
Shutdown Mode Current
Recovery Time from Shutdown VIN=2.5V, IL=200mA
Efficiency
µA
µA
mS
%
IL=300mA
Fig. 1 in Appl. Examples
VIN=2.2~3.3V
Line Regulation
Load Regulation
0.6
2.5
%VOUT
%VOUT
V
OUT=5V, IL=100mA
IL=10mA~500mA
VOUT=5V
Oscillator Frequency
LBI Pin Trip Point
FB Threshold Voltage
EXT Pin Driving Capability
90
1.17
0.598
120
1.22
0.617
150
1.27
0.636
KHz
V
V
AIC1630A
Pin 8=5V, Pin 3= 0.85V
Sourcing
Sinking
VIN=2V
80
50
45
mA
mA
Ω
nA/Pin
nA/Pin
LBO “ON Resistance”
Input Pin Bias Current
Output Pin Leakage
10
10
3
AIC1630
ꢀ TYPICAL PERFORMANCE CHARACTERISTICS
Ext Pin Sourcing Capability vs Temperature
Ext Pin Sourcing Capability
85
80
90
80
70
60
50
VOUT=5V
VOUT=5V
70
60
50
40
30
20
Ta=25°C
Ext Pin Voltage=0.85V
VOUT=3V
40
VOUT=3V
30
0
10
20
30
40
50
60
70
80
0.6
0.8
1.2
1.4
1.6
1.8
1 EXT Pin Voltage (V)
°
Ext Pin Sinking Capability vs Temperature
Ext Pin Sinking Capability
55
53
51
49
47
45
43
41
85
80
75
70
65
60
55
50
45
40
35
Ta=25°C
VOUT=5V
Ext Pin Voltage=0.85V
VOUT=5V
VOUT=3V
VOUT=3V
39
37
35
0
10
20
30
40
50
60
70
80
0.6
0.8
1
1.2
1.4
1.6
1.8
2.0
Temperature (°C)
EXT Pin Voltage (V)
Switch off Supply Current vs Input Voltage
Switch Off Supply Current vs Temperature
VIN=3V
110
105
120
115
110
105
100
100
95
Ta=25°C
90
85
95
90
80
75
1.5
2
2.5
3.5
3 VIN (V)
4
4.5
5
0
10
20
30
40
50
60
70
80
Temperature (°C)
4
AIC1630
ꢀ TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED)
Shutdown Mode Supply Current vs Temperature
Shutdown Mode Supply Current vs Input Voltage
8.2
8
9.4
9
VIN=3V
7.8
7.6
7.4
7.2
7
8.6
8.2
7.8
7.4
7
0
10
20
30
40
60
70
80
Temperature (5°0C)
1
1.5
2
2.5
3
3.5
4
4.5
5
V
Oscillator Frequency vs Input Voltage
Oscillator Frequency vs Temperature
VIN=3V
130
120
110
100
90
123
122
121
120
119
118
117
Ta=25°C
80
70
60
80
1
1.5
2
2.5
3.5
4
4.5
5
IN3(V)
0
10
20
30
40
50
60
70
V
Temperature (°C)
ꢀ BLOCK DIAGRAM
-
SD
VOUT
LBI
Shutdown
+
100mV
VIN
FB EXT=LOW
-
-
+
OSC
1.22V
LBO
FB
EXT
GND
+
0.617V
FB EXT=HIGH
+
-
100mV
5
AIC1630
ꢀ PIN DESCRIPTION
AIC1630/ AIC1630-3 / AIC1630-5
AIC1630A
PIN 1: SD - The AIC1630A goes in shutdown
mode and consumes less than 10
µA 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 1: SD
-
The AIC1630 goes in shutdown
mode and consumes less than
10µA 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 - Input supply.
PIN 2: VIN
PIN 3: EXT
-
-
Input supply.
PIN 3: EXT - Push-pull drive output to drive
external power switch.
Push-pull drive output to drive
external power switch.
PIN 4: GND - Ground.
PIN 5: FB
- Output voltage can either be
PIN 4:SGND - Ground connected to source of
power switch.
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.
PIN 5:CGND - Ground for control circuits of the
IC. It should be separated from
SGND to avoid the interference.
VOUT voltage is given by the
following equation:
PIN 6:LBO
PIN 7:LBI
-
-
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.
R1 VOUT
R2 0.617
=
−1
where R1 = Resistor
connected
between FB pin and VOUT pin.
The noninverting input of the
battery low detector, of which the
inverting input is internally
connects to 1.22V voltage
reference.
R2= Resistor connected between
FB pin and ground.
VOUT=Output voltage to be set.
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 8:VOUT - The output voltage feedbacks to
the IC through this pin.
PIN 7: LBI - The noninverting input of the
battery low detector, of which the
inverting
connects
reference.
input
to
is
internally
voltage
1.22V
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
6
AIC1630
ꢀ APPLICATION EXAMPLES
VOUT
100Ω
95
90
85
80
75
70
65
60
(+5V)
V
IN
R3
+
VOUT
LBI
SD
VIN= 4.5V
C1
L
VIN
VIN= 3.3V
VIN= 3V
VIN= 2.2V
1N5819
D1
LBO
EXT
5nF C2
VIN= 2V
SGND
CGND
+
LOAD
270Ω
AIC1630-5
C3
R4
0
100
200
300
400
500
600
700
800
Load Current (mA)
Fig. 1 5V Output Step-Up Converter
100Ω
R3
85
VOUT
(+12V)
VIN
V =5V
IN
+
VIN=4.5V
VIN=3.3V
VOUT
LBI
C1
SD
180K
10K
80
75
70
R1
R2
220µF
L
VIN
47µH
VIN=2.75V
D2
LBO
FB
1N5819
EXT
D1
1N4148
GND
+
LOAD
1K
VIN=2.25V
C3
AIC1630A
0
30
60
90
120
150
180
210
240
270
R4
Load Current (mA)
Note :
VIN
≥
2.2V
Fig. 2 12V Output Step-Up Converter for Flash Memory
VS(+3/5V)
VOUT
95
(+36V)
VIN= 20V
+
VIN
VOUT
LBI
90
85
80
75
70
SD
1M
R1
C1
VIN= 16V
VIN= 12V
47µF
220µH
L
VIN
1N5819
D1
VIN= 8V
LBO
FB
EXT
VIN= 6V
GND
+
LOAD
120Ω
Vs= 5V
R2
VIN= 5V
17.8K
33µF
C3
AIC1630A
R3
0
10
20
40
50
60
70
Load3C0 urrent (mA)
Fig. 3 36V Output Step-Up Converter for Color LCD
7
AIC1630
ꢀ APPLICATION EXAMPLES (CONTINUED)
VS (+3/5V)
VIN
88
86
84
82
80
78
76
74
72
70
C6
VIN= 15V
VIN= 5V
5nF
L
150µH
D1
VIN= 10V
VIN= 20V
+
VOUT
LBI
SD
1N5819
R1
C1
90K
10µF
VIN
VOUT
+
(-24V)
C2
47µF
C3
C4
0.1µF
LBO
FB
EXT
1.2K R3
GND
1N5819
D2
47µF
R2
2.4K
LOAD
Vs= 5V
D3
C5
5nF
AIC1630A
+
0
5
10
15
20
25
30
35
40
45
Load Current (mA)
Fig. 4
-24V Output Inverting Converter for LCD
VS (+3/5V)
220µF
10µF
VIN
78
+
L
C3
VIN= 5V
VIN= 4V
VIN= 3V
Vs= 3V
76
74
72
70
68
66
64
62
60
58
56
150µH
D1
1N5819
VOUT
LBI
+
C1
SD
R1
R2
90K
VIN
VOUT
+
C2
5nF
(-24V)
10µF
150Ω
R3
C5
C4
120Ω
R4
LBO
FB
EXT
D2
GND
1N5819
VIN= 2V
20
2.4K
D4
AIC1630A
LOAD
D3
+
33µF
1N4148
0
5
10
25
Load Current1(5mA)
Fig. 5
2V Input 20mA Load -24V Output Inverting Converter for LCD
VOUT
(+12V)
VS (+3/5V)
VIN
+
220µF
C3
50µH
95
+
L
VIN= 20V
C1
10µF
D1
VOUT
LBI
SD
90
85
80
75
70
R1
R2
1N5819
180K
10K
VIN= 16V
VOUT
+
VIN
+
10µF
C5
(-12V)
VIN= 12V
VIN= 8V
47µF
C2
120Ω
430Ω
R3
EXT
LBO
FB
D2
R4
VIN= 6V
GND
1N5819
AIC1630A
C4
D3
Vs= 5V
VIN= 5V
47µF
+
D4
1N4148
0
10
60
70
20 Load3C0 urren4t0(mA) 50
Fig. 6
12V Dual Output Converter for computer for computer Interfacing
8
AIC1630
ꢀ APPLICATION EXAMPLES (CONTINUED)
SI9430DY
L
Q2
+
50µH
VOUT
(+5V)
VIN
100K
220µF
R3
R4
270Ω
D1
C2
+
9014
Q1
91
89
5.1V
ZD1
100µF
C1
87
85
83
81
79
77
75
VIN= 12V
VIN= 16V
+
10µF
SD
VOUT
VIN= 8V
C3
R1
L
O
A
D
45K
VIN
LBI
C4
680P
EXT
GND
LBO
FB
VIN= 20V
R5
R2
6.4K
36K
AIC1630A
0
1
1.5
2
2.2
2.5
3
3.5
4
Quicient Current = 300µA
Fig. 7
5V Output Step-Down Converter -1
L
SI9430DY
Q2
VOUT
(+5V)
50µH
VIN
R3
+
+
100K
270Ω
D1
220µF
R4
C2
Q1
100µF
C1
Q3
9014
5.1V
ZD1
90
85
80
1N4148
D2
VIN= 8V
+
SD
VOUT
10µF
VIN= 12V
VIN= 16V
VIN= 20V
C3
L
R1
45K
VIN
EXT
GND
O
A
D
LBI
LBO
FB
C4
680P
R5
36K
R2
6.4K
AIC1630A
0
1
2
4
5
Load Current3(A)
Quicient Current = 300µA
Fig. 8
5V Output Step-Down Converter -2
9
AIC1630
ꢀ APPLICATION EXAMPLES (CONTINUED)
+VIN
2A FUSE
1N5819
D2
BATTERY PACK
(VIN<VBAT)
220
R10
R3
C2
+
0.1µF
150
+
R1
100µF
1.5K
1.5K
R9
33K
R4
C5
C4
R13
R12
VOUT
LBI
LBO
FB
SD
VIN
EXT
GND
VREF
VDD
VBT
GND
R11
D3
12K
R2
120K
+
VOUT
LED
TIMER
MODE
22K
R7
C3
AIC1630A
0.82
RIF
R5
33K
+
AIC1761/1766
ZD1
4.7V
100µF
C1
C3
100K
R6
10nF
1N4148
D3
Note:
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
+VIN
IN5819 D2
BATTERY PACK
TIP32C
Q3
(+VIN can be either higher or lower
than the battery voltage)
220
R12
240K
R4
+
0.1µF
47K
R3
150
R1
+
µ
100 F
1.5K
R14
1.5K
C5
RIT
R6
C4
C2
R13
SD
VOUT
75K
330
120K
VIN
EXT
GND
LBI
LBO
FB
VBT
GND
TIMER VOUT
MODE LED
AIC1761/1766
VREF
VDD
12K R5
2N3904
Q2
+
2N2222
Q5
R11
22K
R9
RIF
+
C3
4.7µF
2N3904
Q4
0.82
C1
R2
AIC1630A
750
120K
R15
Note:
Fast Charge Current
= 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
10
AIC1630
ꢀ PHYSICAL DIMENSIONS
ꢀ 8 LEAD PLASTIC SO (unit: mm)
D
SYMBOL
MIN
1.35
0.10
0.33
0.19
4.80
3.80
MAX
1.75
0.25
0.51
0.25
5.00
4.00
A
A1
B
C
D
E
H
E
e
e
1.27(TYP)
A
H
L
5.80
0.40
6.20
1.27
C
B
L
ꢀ 8 LEAD PLASTIC DIP (unit: mm)
SYMBOL
MIN
0.381
2.92
0.35
0.20
9.01
7.62
6.09
MAX
—
D
A1
A2
b
C
D
E
E1
e
eB
L
4.96
0.56
0.36
10.16
8.26
7.12
E1
E
A2
A1
L
C
2.54 (TYP)
—
2.92
eB
10.92
3.81
e
b
11
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