UTC-IC UM608

UNISONIC TECHNOLOGIES CO., LTD
UM608
Preliminary
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
Note:
Ordering Number
Lead Free
Halogen Free
UM608L-S08-R
UM608G-S08-R
UM608L-S08-T
UM608G-S08-T
xx: Output Voltage, refer to Marking Information.
UM608L-S08-R
Package
Packing
SOP-8
SOP-8
Tape Reel
Tube
(1)Packing Type
(1) R: Tape Reel, T: Tube
(2)Package Type
(2) S08: SOP-8
(3)Lead Free
(3) G: Halogen Free, L: Lead Free
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
1 of 4
QW-R105-043.a
UM608
Preliminary
„
PIN CONFIGURATION
„
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
„
PIN NAME
VCC
INPUT
OUT2
OUT1
GND
OUT
VCTRL
VSENSE
LINEAR INTEGRATED CIRCUIT
DESCRIPTION
Power supply
Input of charge status amplifier
Charge status output
Charge status output
Ground
Output pin. Sinking current only
Input pin of the voltage control loop
Input pin of the current control loop
BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 4
QW-R105-043.a
UM608
„
Preliminary
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
150
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)
Current Control Loop Reference
VSENSE
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
Sense charge status
VREF
Input of charge status amplifier
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
190
mA/mV
mV
200
mV
13
27
50
mA
13.5
14
V
20
65
40
mA
mV
3 of 4
QW-R105-043.a
UM608
„
Preliminary
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
NT 5D
x
AC
EC35
R13
39k
C8
68µ
FUS
1N54
3
R12
150k
X2
AC
FUSE2
D5 ER804
R9
30k
C14 R25
510p 47
C15
R26
470µ
6.8k
C2
FR206
D3
HER107
R14
10
C2
47n
UTC
UC3842
N2AP817
d
C5
4.7n
R1
10k
R17
22
VCC
OUT
COMP GND
FB ISENSE
VREF RT/CT
R7 9.1K
R5
3.6k
C4
100n
M2
C6
4.7n
BTRsense
0.1
DGND
D7
LED
10
N5AP817_1
d
C16
100µ
R18 910
C9
0.47n
+ BT1
- 48V
D9 R15
d
R3 UTC
10k 8N60
BT+
5
C7
10n
R28
2k
Comp1_1
R19
910
Rs
500m
BT-
DGND
R10
500
BT+
R29
45.45k
org=21k
R32
1k Q3
UTC UM608
VCC
VCTRL
INPUT VSENSE
OUT2
OUT
R34
15k
R36
100k
C13
10µ
OUT1
R23
5.1k
R6
3.6k
LED LED
D4 D8
22p
Rcomp2 Comp2
22k
2.2n
Comp1 Rcomp1
2.2n
470k
GND
RA
120k Qc
RB
1k
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
4 of 4
QW-R105-043.a