Datasheet

UNISONIC TECHNOLOGIES CO., LTD
UCM102
Preliminary
CMOS IC
HIGH-SIDE CURRENT
MONITOR

DESCRIPTION
The UTC UCM102 is a high-side current sense monitor. It uses
UTC’s advanced technology to provide customers with a minimum
operating current, high accuracy and high side voltage, etc.
The UTC UCM102 is suitable for portable battery equipment.

FEATURES
* Low operating current
* High side voltage (2.5~20V)
* High accuracy (typ=1%)

ORDERING INFORMATION
Ordering Number
Lead Free
UCM102L-AE2-R
UCM102L-AE2-R

Halogen Free
UCM102G-AE2-R
Package
Packing
SOT-23-3
Tape Reel
(1)Packing Type
(1) R: Tape Reel
(2)Package Type
(2) AE2: SOT-23-3
(3)Lead Free
(3) L: Lead Free, G: Halogen Free
MARKING
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
1 of 4
QW-R502-934.a
UCM102
Preliminary

PIN CONFIGURATION

PIN DESCRIPTION
PIN NO.
1
2
3

PIN NAME
VSENSEVSENSE+
IOUT
CMOS IC
DESCRIPTION
Connection to load/battery
Supply voltage
Output current, proportional to VIN-VLOAD
BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 4
QW-R502-934.a
UCM102

Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Voltage on any Pin (Relative to IOUT)
-0.6~20
V
Continuous Output Current
IOUT
25
mA
Continuous Sense Voltage (Note 2)
VSENSE
-0.5~+5
V
Power Dissipation (TA=25°C) Derate to Zero at 125°C
PD
450
mW
Operating Temperature
TA
-40~85
°C
Storage Temperature
TSTG
-55~125
°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 (Test Conditions TA=25°C, VIN=5V, ROUT=100Ω.)
PARAMETER
VCC Range
Output Current
SYMBOL
VIN
IOUT (Note 1)
TEST CONDITIONS
VSENSE=0V
VSENSE=10mV
VSENSE=100mV
VSENSE=200mV
VSENSE=1V
Sense Voltage
VSENSE- input current
Accuracy
Transconductance, IOUT/VSENSE
VSENSE (Note 2)
ISENSEAcc
RSENSE=0.1Ω, VSENSE=200mV
Gm
VSENSE(DC)=10mV, Pin=-40dBm
(Note 3)
Bandwidth
BW
VSENSE(DC)=100mV, Pin= -20dBm
(Note 3)
Notes: 1. Includes input offset voltage contribution
2. VSENSE is defined as the differential voltage between VSENSE+ and VSENSE-.
VSENSE=VSENSE+ - VSENSE= VIN - VLOAD
= ILOAD x RSENSE
3. -20dBm=63mVp-p into 50Ω
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
2.5
1
90
0.975
1.95
9.6
0
-2.5
TYP
MAX UNIT
20
V
4
15
µA
104 120
µA
1.002 1.025 mA
2.0 2.05
mA
9.98 10.2
mA
2500
mV
100
nA
2.5
%
10000
µA/V
300
kHz
2
MHz
3 of 4
QW-R502-934.a
UCM102

Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
RSENSE
VIN
2
VSENSE+
To Load
3
VSENSE-
UTC
UCM102
IOUT
1
VOUT =
RLOAD
VOUT
VSENSE
100×ROUT
ROUT
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-R502-934.a
Similar pages