UTC-IC UM607

UNISONIC TECHNOLOGIES CO., LTD
UM607
LINEAR INTEGRATED CIRCUIT
CC, CV CONTROL FOR
BATTERY CHARGER AND
ADAPTOR
„
6
DESCRIPTION
5
4
The UTC UM607 is a voltage and current control IC which has
precision voltage reference. These devices have been optimized for
battery charger, adapter, second controller of switching regulator
systems, and other battery systems.
„
1
2
3
SOT-26
FEATURES
* Constant Voltage Control (CV) and Constant Current Control (CC)
* Input voltage ranging from 2.2V to 14V
* 40mA photo coupler drive current typically
* 1mA maximum operating current
* Internal Precision Voltage Reference : 1.240V ± 1%
* Easy compensation and low external component count.
„
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UM607xL-AG6-R
UM607xG-AG6-R
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
Package
Packing
SOT-26
Tape Reel
1 of 7
QW-R105-037.B
UM607
„
LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE
A-CH REFERENCE VOLTAGE
CODE
MARKING
6 5
150mV
B
70mV
D
SOT-26
UM7 G
1
„
PIN CONFIGURATION
„
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
PIN NAME
A-INPUT
GND
B+INPUT
VCC
PC
A+INPUT
4
2
Reference Voltage
3
DESCRIPTION
Input Pin of the Current Control Loop
Ground Line. 0V Reference For All Voltages
Input Pin of the Voltage Control Loop
DC Supply Line
Photo Coupler (P/C) Drive Pin. Sinking Current Only
Input Pin of the Current Control Loop
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 7
QW-R105-037.B
UM607
„
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 7
QW-R105-037.B
UM607
„
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING (Ta=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
DC Supply Voltage
VCC
16
V
Power Dissipation (Note 2)
PD
500
mW
Operating Temperature
TOPR
-40 ~ +85
°C
Storage Temperature
TSTG
-55 ~ +150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Mount on a glass epoxy circuit board of 30x30mm Pad dimension of 50mm2
„
RECOMMENDED OPERATING CONDITIONS
PARAMETER
DC Supply Voltage
„
SYMBOL
VCC
RATINGS
2.2 ~ 14
UNIT
V
ELECTRICAL CHARACTERISTICS (VCC = 5V, Ta=25°C, unless otherwise specified)
PARAMETER
Operating Current
Leakage Current
Saturation Voltage
PC Terminal Current
Output Voltage High
A CH : Current Control Loop
Reference Voltage
SYMBOL
ICC
IPC(LEAK)
VPC(SAT)
IPC
VOH
TEST CONDITIONS
IPC= off
V+=VPC=14V
IPC= 20 mA
RL= 30KΩ
VREF(A)
IPC= 2.5mA
MIN
20
UM607B
UM607D
144
66.5
TYP
0.6
500
40
VCC-0.1
150
70
20
8
MAX
1.0
10
700
70
156
73.5
50
UNIT
mA
μA
mV
mA
V
mV
Input Bias Current
IB(A)
μA
Transconduction Gain (Note 1)
GM(A)
1.5
mA/mV
B CH : Voltage Control Loop
Reference Voltage (Note 2)
VREF(B)
IPC= 1.5mA
1.227 1.240 1.253
V
Input Bias Current
IB(B)
50
500
nA
Transconduction Gain (Note 3)
GM(B)
1
3
mA/mV
Notes: 1. When the positive input at ICTRL is lower than -151mV, and the voltage is decreased by 1mV, the sinking
current at the output OUT will be increased by 8mA.
2. The internal voltage reference is set at 1.240V (bandgap reference). The voltage control loop precision
takes into account the cumulative effects of the internal voltage reference deviation as well as the input
offset voltage of the trans-conductance operational amplifier.
3. If the voltage on B +Input (the positive input of the amplifier) is higher than the negative amplifier input
(VREF(B) = 1.240V), and it is increased by 1mV, the sinking current at the output OUT will be increased by
3mA.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 7
QW-R105-037.B
UM607
„
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
In the above application schematic, the UTC UM607 is used on the secondary side of a flyback adapter (or
battery charger) to provide an accurate control of voltage and current. The above feedback loop is made with an
optocoupler.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 7
QW-R105-037.B
UM607
„
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
Supply Current vs. Supply Voltage
PC Terminal Current vs. Photo Coupler
90
PC Terminal Current, IPC (mA)
Supply Current, ICC (mA)
1.2
1.0
0.8
0.6
0.4
0.2
0
0
2
75
60
45
30
15
0
4
6
8 10 12 14 16
Supply Voltage, VCC (V)
0
Supply Current vs. Ambient Tempreture
0.9
120
Input Bias Current, IB(B) (nA)
Supply Current, ICC (mA)
0.85
VIN=12V
0.8
0.75
0.7
0.65
VIN=5V
0.6
0.55
VIN=2.2V
0.5
-35 -25 -15 -5 5 15 25 35 45 55 65 75 85
Ambient Temperature, Ta (°C)
16
Input Bias Current vs.
Ambient Tempreture
80
60
40
20
-50 -35 -15 5 25 45 65 85 105
Ambient Temperature, Ta (°C)
VREF_A (mV) vs. Ambient Tempreture
VREF_B (V) vs. Ambient Tempreture
1.250
72
1.245
71
VREF_B (V)
VREF_A (mV)
4
6
8 10 12 14
Photo Coupler, VPC (V)
100
0
73
70
69
1.240
1.235
1.230
68
67
-35
2
-15
5
25
45
65
85
Ambient Temperature, TA ( C)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
1.225
-35
-15
5
25
45
65
Ambient Temperature, TA ( C)
85
6 of 7
QW-R105-037.B