ADT7310
6 CH Power Supply IC for CCD Camera Module
General Description
The ADT7310 is system specific power supply IC
that is suitable for color CCD camera.
ADT7310
Other features include over-current protection,
YYWW
thermal shutdown. It reduces design complexity
and external component count.
Package outline of the ADT7310
Features
Applications
• Input voltage range : 4.75V to 18V
• Color CCD camera
• Multiple output voltage channel available
• CCTV camera
- 2 channel 3.3V outputs , 200mA / 60mA max.
• distributed power system
- 1.8V output , 40mA max.
(3.3V / 1.8V / 5V / 15V / -7V)
- 5V boost converter output , 100mA max.
- 15V output , 10mA max.
- Externally adjustable negative voltage output (-7V typical)
• Power-on-reset output & power sequence
• Protection : thermal shutdown , over-current protection
• Small size(5x5 mm2 body) and thermally enhanced 28 Pin MLF Package
Typical Application Circuit
U1
CL1
CF1
L2
D2
VIN
QN1
5V
1.8V
C2
CL7
C20
Rs2
C100
U2
CF2
C200
CL2
Rs1
QP1
CF3
U0
(ADT7310)
C10
Rn2
L1
D1
VIN2
U3
-7V
Rn1
CL3
15V
C1
CL6
C30
Ct
CL4
CL5
RBO
C40
3.3VD
3.3VA
* This specifications are subject to be changed without notice
Mar. 12. 2009 / Rev. 0.0
1/6
http://www.ad-tech.co.kr
ADT7310
6 CH Power Supply IC for CCD Camera Module
Part List
Component
Type
Value ( Model )
Manufacturer
U0
IC
ADT7310
ADTech
U1, 2, 3
IC
BAT54SWT1
ON Semiconductor
QP1
Chip transistor
2SB1424
ROHM
QN1
Chip transistor
MMBT4401LT1
ON Semiconductor
Chip SBD
RSX101M-30
ROHM
L1
Chip inductor
47uH / 590mA (SLF6028T-470MR59)
TDK
L2
Chip inductor
47uH / 590mA (SLF6028T-470MR59)
TDK
C1 , 2
MLCC
10uF / 10V / X5R
Murata
C100
Tantalum capacitor
10uF / 25V (T91C106K025AT)
KEMET
C200
MLCC
0.1uF / 25V
-
CF1 , 2 , 3
MLCC
1uF / 25V / X5R
Murata
CL1 , 2 , 3
MLCC
2.2uF / 25V / X5R
Murata
C10
MLCC
1nF
-
C20
MLCC
22nF
-
C30
MLCC
22nF
-
Ct
MLCC
18pF
-
CL4, 5, 7
MLCC
2.2uF / 25V / X5R
Murata
CL6
MLCC
4.7uF / 25V / X5R
Murata
C40
MLCC
10nF
-
Rs1 , 2
Chip resistor
0.1Ω / 1%
-
Rn1
Chip resistor
45.3㏀ / 1%
-
Rn2
Chip resistor
12.1㏀ / 1%
-
D1, D2
※ SBD (Schottky Barrier Diode)
* This specifications are subject to be changed without notice
Mar. 12. 2009 / Rev. 0.0
2/6
http://www.ad-tech.co.kr
6 CH Power Supply IC for CCD Camera Module
Pin Configuration
ADT7310
28 27 26 25 24 23 22
1
21
2
20
3
19
ADT7310
4
5
17
6
16
7
15
8
Pin Description
18
9
10 11 12 13 14
I : Input , O : Output , IO : Input/Output , P : Power , G : Ground , A : Analog , D : Digital
Pin No.
Name
I/O
Type
Description
1
RS2
I
A
Current sensing and voltage feed-forward for boost converter
2
VIN1
-
P
Main power input
3
RS1
I
A
Current sensing and voltage feed-forward for buck converter
4
PWM
O
D
PWM output for buck converter
5
CC1
O
A
Capacitor terminal for phase compensation of buck converter
6
GND2
-
G
Ground
7
VIN2
-
P
Second power input
8
VO1
O
A
3.3V output for digital part
9
GND3
-
G
Ground
10
DLY
O
A
Delay time control for RBO signal
11
RBO
O
D
Power on reset output
12
CT
O
A
Capacitor terminal for tuning oscillation frequency
13
VO2
O
A
3.3V output for analog part
14
GND4
-
G
Ground
15
VHO
O
A
15V output for CCD positive voltage
16
VREG
O
A
Internal reference voltage output
17
VNO1
I
A
Feedback voltage input for VNO (-7V typical)
18
DRV3
O
D
Driving signal output of charge pump inverter
19
GND5
-
G
Ground
20
VIN5
-
P
Power input for 15V output
21
DRV2
O
D
Driving signal output of charge pump doubler
22
VIN4
-
P
Power input for charge pump block
23
GND6
-
G
Ground
24
VLO
O
A
1.8V output
25
VIN3
-
P
Feedback voltage input for boost converter
26
DRV1
O
D
PWM output for boost converter
27
CC2
O
A
Capacitor terminal for phase compensation of boost converter
28
GND1
-
G
Ground
* This specifications are subject to be changed without notice
Mar. 12. 2009 / Rev. 0.0
3/6
http://www.ad-tech.co.kr
ADT7310
6 CH Power Supply IC for CCD Camera Module
Functional Block Diagram
RS2 CC2 DRV1
VIN1
5V
1.8V
PWM
controller
Internal
Reg
BIAS
LDO
VIN4
OSC
DRV2
C/P
doubler
VIN5
Thermal
Shutdown
RS1
PWM
PWM
controller
Power Sequencer
C/P
inverter
DRV3
feedback
VNO1
CC1
VIN2
LDO
POR
LDO
3.3VD
RBO
3.3VA
LDO
15V
Absolute Maximum Ratings
Parameter
Symbol
Min.
Typ.
Max.
Unit
VIN
-
-
20
V
Power dissipation (Ta=70℃) *1
PDmax
-
-
2.2
W
Storage temperature
TSTG
-65
-
+150
℃
Junction temperature
TJmax
-
-
+150
℃
Thermal resistance
ΘJA
-
35
-
℃/W
Power supply voltage
*1 derate 35℃/W above +70℃.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other
conditions beyond those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
* This specifications are subject to be changed without notice
Mar. 12. 2009 / Rev. 0.0
4/6
http://www.ad-tech.co.kr
ADT7310
6 CH Power Supply IC for CCD Camera Module
Operating Ratings
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power supply voltage
VIN
4.75
12
18
V
Operating temperature
TOPR
-20
-
+85
℃
Junction temperature
TJ
-
-
+125
℃
Max. power dissipation (Ta=70℃)*1
PD
-
-
1.5
W
*1 This spec. indicates that junction temperature of the device is under 125℃. In specific applications,
this is recommended under this power dissipation specification.
Electrical Characteristics (Ta = 25℃ , VIN = 12V , unless otherwise noted.)
Parameter
Condition
Operating supply voltage
ICC with no load
Efficiency
Min
Typ
Max
Unit
Note
-
4.75
12
18
V
VIN=12V, w/o loading
5.0
8.0
11.0
㎃
VIN=12V , max. load current
-
58
-
％
Continuous mode , Ct=13㎊
400
500
600
㎑
Note1
Continuous mode , Ct=18㎊
300
400
500
㎑
Note2
VIN=12V
3.5
3.7
3.9
V
VIN=12V , IO=180㎃
3.0
3.3
3.6
V
-
180
200
㎃
3.0
3.3
3.6
V
-
50
60
㎃
1.7
1.8
1.9
V
-
25
40
㎃
14.55
15.00
15.45
V
-
5
10
㎃
-7.5
-7.0
-6.5
V
-
2
5
㎃
4.75
5.00
5.25
V
-
50
100
㎃
Switching frequency
Buck Converter (+3.7V output)
Output voltage (VIN2)
+3.3VD output
Output voltage
VIN=12V
Output drive current
+3.3VA output
Output voltage
VIN=12V , IO=50㎃
VIN=12V
Output drive current
+1.8V output
VIN=12V , IO=25㎃
Output voltage
VIN=12V
Output drive current
+15V output
Output voltage
VIN=12V , IO=5㎃
VIN=12V
Output drive current
-7V output (Rn1=45.3㏀ , Rn2=12.1㏀ , unless otherwise noted.)
VIN=12V , Io=-2㎃
Output voltage
Output drive current
Inflow current
Boost Converter (+5V output)
Output voltage (VIN3)
Maximum output current
VIN=12V , IO=80㎃
VIN=12V
Note 1. This switching frequency is suitable to 5V VIN operating condition.
Note 2. This switching frequency is suitable to 12V VIN operating condition.
* This specifications are subject to be changed without notice
Mar. 12. 2009 / Rev. 0.0
5/6
http://www.ad-tech.co.kr
6 CH Power Supply IC for CCD Camera Module
ADT7310
Package ; 28MLF, 5mm x 5mm body (units : mm)
TOP VIEW
SIDE VIEW
BOTTOM VIEW
* This specifications are subject to be changed without notice
Mar. 12. 2009 / Rev. 0.0
6/6
http://www.ad-tech.co.kr