UNISONIC TECHNOLOGIES CO., LTD UM608

UNISONIC TECHNOLOGIES CO., LTD
UM608
LINEAR INTEGRATED CIRCUIT
CONSTANT VOLTAGE AND
CONSTANT CURRENT
CONTROLLER FOR BATTERY
CHARGERS

DESCRIPTION
The UTC UM608 is a highly integrated solution for a constant
voltage/constant current mode SMPS application.
The UTC UM608 contains one 2.5V voltage reference, one
operational amplifier for voltage control loop, one operational
amplifier for current control loop and two operational amplifiers for
charge status. It is suitable for battery charger and other battery
systems.

FEATURES
* Constant Voltage and Constant Current Control
* Precision Internal Voltage Reference
* Few External Components
* Easy Compensation
* Charge status output for LED
* build-in overvoltage protection for battery

ORDERING INFORMATION
Ordering Number
UM608G-R10-R
UM608G-SM2-R
UM608G-R10-R

Package
SSOP-10
MSOP-10
(1)Packing Type
(1) R: Tape Reel
(2)Package Type
(2) R10: SSOP-10, SM2: MSOP-10
(3)Green Package
(3) G: Halogen Free and Lead Free
Packing
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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UM608
LINEAR INTEGRATED CIRCUIT

PIN CONFIGURATION

PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
10

PIN NAME
ISET2
VCC
OUT2
OUT1
Vref
GND
OUT
VCTRL
ISET1
VSENSE
DESCRIPTION
Input of charge status op
Power supply
Charge status output
Charge status output
Reference voltage:2.5V
Ground
Output pin. Sinking current only
Input pin of the voltage control loop
Input pin of the current control loop
Input pin of the voltage control loop
BLOCK DIAGRAM
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www.unisonic.com.tw
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UM608

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Power Supply Voltage
VCC
35
V
Junction Temperature
TJ
150
°C
Operating Temperature
TOPR
-40~+105
°C
Storage Temperature
TSTG
-65 ~ +150
°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.

THERMAL DATA
PARAMETER
Junction to Ambient

RATINGS
140
UNIT
°C/W
RATINGS
5 ~ 32
UNIT
V
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Voltage Operating

SYMBOL
θJA
SYMBOL
VCC
ELECTRICAL CHARACTERISTICS (VCC=15V, TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
DEVICE SUPPLY
Supply Current
ICC
VCC=15V
VOLTAGE CONTROL LOOP
Transconduction Gain (VCTRL)
GMV
I/(V1-V2)
Voltage Control Loop Reference
VREF
Input Bias Current
IIBV
CURRENT CONTROL LOOP
Transconduction Gain (VSENSE)
GMI
I/(V1-V2)
VREF
Reference Voltage
VREF
At 1mA sinking current
OUTPUT OF VOLTAGE AND CURRENT CONTROL LOOP
Low Output Voltage at 10mA
VOL
Sinking Current
Max Output Current
IOM
Output to VCC sink current only
OUTPUT OF CHARGE SUTUS
High Output Voltage at 10mA
VOH
Source Current
Max Output Current
IOM
Output to GND source current only
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
TYP
MAX
UNIT
2
4
mA
1
3.5
1.25
50
mA/mV
V
nA
1.5
7
mA/mV
2.4
2.5
2.6
200
13
V
mV
27
50
mA
13.5
14
V
20
40
mA
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UM608

LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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