Datasheet

UNISONIC TECHNOLOGIES CO., LTD
UM605A/B
LINEAR INTEGRATED CIRCUIT
OPERATIONAL AMPLIFIERS
WITH 2.5V/1.25V SHUNT
REGULATOR

DESCRIPTION
UTC UM605A/B that is designed to include 2 op amp and one
shunt regulator for battery charger and AC adapter application.

FEATURES
* Internal accurate 2.5V / 1.25V VREF
* Reduced external components

ORDERING INFORMATION
Ordering Number
UM605AG-AF5-R
UM605BG-AF5-R

Package
SOT-25
SOT-25
Packing
Tape Reel
Tape Reel
MARKING
UM605A
4
5
UM605B
UME1G
1
2
3
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UM605A/B

LINEAR INTEGRATED CIRCUIT
PIN DESCRIPTION
PIN NO.
PIN NAME
FUNCTION
INTERNAL CIRCUIT DIAGRAM
1
1
OUT
Output Pin
2
GND
Ground
3
INB
Input Pin
4
INA
5
VCC
4
Supply Voltage
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UM605A/B

LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
UM605A
VCC
INA
5
4
5.9K
+
REF
+ 2.5V
43K
+
-
2.8K
1
2
3
OUT
GND
INB
UM605B
VCC
INA
5
4
5.9K
REF
+ 2.5V 23K
20K
+
+
2.8K
-
1
2
3
OUT
GND
INB
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
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (TA = 25°C, unless otherwise specified.)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.3 ~ +20
V
Recommended Operating Voltage
VOPR
+4 ~ +20
V
Power Dissipation
PD
250
mW
Operating Temperature
TOPR
-25 ~ +85
°C
Storage Temperature
TSTG
-40 ~ +125
°C
Note: 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.

ELECTRICAL CHARACTERISTICS (VCC=5V, TA=25°C, unless otherwise specified.)
FOR UM605A
PARAMETER
Current Consumption
A AMPLIFIER
Output Inverting Voltage
Output Sink Current
Input Bias Current
PSRR
B AMPLIFIER
Output Inverting Voltage
Output Sink Current
Input Bias Current
PSRR
FOR UM605B
PARAMETER
Current Consumption
A AMPLIFIER
Output Inverting Voltage
Output Sink Current
Input Bias Current
PSRR
B AMPLIFIER
Output Inverting Voltage
Output Sink Current
Input Bias Current
PSRR
SYMBOL
TEST CONDITIONS
ICC
INA=0V, INB=0V, RL=∞
MIN
TYP
2.4
MAX
3.4
UNIT
mA
VA
IO(SINK A)
II(BIAS A)
PSRR(A)
INA =0V, RL=4.3k
INB =2.7V, INA =0V, VOUT=1.5V
INA =0V, RL=4.3k
INA =0V, RL=4.3k
2.45
5
2.50
2.55
50
140
V
mA
nA
dB
VB
IO(SINK B)
II(BIAS B)
PSRR(B)
INB =0V, RL=4.3k
INB =0V, INA=0.17V, VOUT=1.5V
INB =0V, RL=4.3k
INB =0V, RL=4.3k
152
5
SYMBOL
TEST CONDITIONS
ICC
INA=0V, INB=0V, RL=∞
50
140
MIN
TYP
1.2
MAX
1.7
UNIT
mA
1.25
1.275
50
140
V
mA
nA
dB
65
INA =0V, RL=4.3k
INB =2.7V, INA =0V, VOUT=1.5V
INA =0V, RL=4.3k
INA =0V, RL=4.3k
1.225
5
VB
IO(SINK B)
II(BIAS B)
PSRR(B)
INB =0V, RL=4.3k
INB =0V, INA=0.17V, VOUT=1.5V
INB =0V, RL=4.3k
INB =0V, RL=4.3k
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mV
mA
nA
dB
50
VA
IO(SINK A)
II(BIAS A)
PSRR(A)
UNISONIC TECHNOLOGIES CO., LTD
160
62
160
50
65
140
mV
mA
nA
dB
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UM605A/B

LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUIT
0.001μ/1kV
B+
56k
68μH
2.2k
1k
+
680μ
/8V
0.1μF
100
51k
5
1M
+
+
8.3μ/250V
+
100μ
/16V
1
4
2
+
0.1μF
2.2k
3
100μ
/16V
0.022μF
360
0.1μF
8.2k
360
GND
0.033μF
0.22
2.7k
100
100
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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