ANASEM CSL2050DTA

AnaSem
Analog Semiconductor IC
CSL2050DTA
20~50mA Current detection
CMOS+MR Monolithic Current Sensor Switch
Rev. E09-08
AnaSem Inc.
.......... Future of the analog world
Rev. E09-08
Products Data Sheet
AnaSem
Analog Semiconductor IC
20~50mA Current detection, CMOS+MR Monolithic Current Sensor Switch
CSL2050DTA
GENERAL DESCRIPTIONS
CSL series are AC or DC current sensor switch with CMOS+MR
monolithic structure. The current from 10 to 200mA can be measured in
high accuracy by the resistance of 10mΩ. It is molded in a micro SOT26 package because of a monolithic structure.
Because the bridge structure of MR is adopted for the current detection,
high sensitivity and high accuracy temperature characteristic have been
achieved. The measurement and the direction of the current value can
be measured at the same time.
The detection current value of the switch is fixed by laser trim. The
measurement up to 800mA is possible in CSM and CSH series.
HALOGEN
RoHS
COMPLIANCE
FEATURES
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Detection current (CSL series) ························································ 10mA ~ 200mA
Operating voltage range ·································································· 1.6V ~ 6.0V
Maximum detection current ····························································· 500mA
Low detection line resistance ·························································· 0.8Ω
Low current consumption ································································ Typ. 4.7μA (VIN=3.3V, Ta=25°C)
Stand-by current ·············································································· Max. 0.1μA
Operating temperature range ·························································· -40 ~ +85°C
Small package ················································································ SOT-26 (400mW)
Reverse-voltage connection protection
AC or DC current detection
Output over drive protection
APPLICATIONS
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Over current detection
Battery current detection
Switching power supply
Motor control feedback detection
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Lamp disconnection detection
Power failure detection
Reverse-voltage connection protection
USB over current detection
AnaSem Inc.
.......... Future of the analog world
20~50mA Current detection, CMOS+MR Monolithic Current Sensor Switch
CSL2050DTA
Rev. E09-08
PRODUCTS NUMBERING GUIDE
CSL2050
Design version
A : Detection pulse cycle 12.5msec
Max. detection current 500mA
Package form
T : SOT-26 (2.9×2.8×1.1mm)
Functional Specification
A : AC current detection
D : DC current detection
Detection current
2050 : 20mA ~ 50mA
PIN CONFIGURATION (SOT-26)
CS-
VIN
VSS
6
5
4
D0505A
1
2
3
NC
VOUT
CS+
No.
Symbol
1
2
3
4
5
6
NC
VOUT
CS+
VSS
VIN
CS-
Descriptions
Non connection
CMOS output
Current +
Power ground
Power source
Current -
(Top view)
TYPICAL APPLICATION CIRCUITS
NC
VOUT
CS-
VIN
A
3.3V
CS+
2
CL = 1µF
VSS
AnaSem Inc.
.......... Future of the analog world
20~50mA Current detection, CMOS+MR Monolithic Current Sensor Switch
CSL2050DTA
Rev. E09-08
BLOCK DIAGRAM
VIN
Switch
CSR1
Sampling circuit
R2
Latch circuit
R3
R4
CMOS drive circuit
T1
CS+
VOUT
VSS
ABSOLUTE MAXIMUM RATINGS
Items
Input voltage range
Output current
Output voltage range
Power dissipation ※1)
SOT-26
Operating temperature range
Storage temperature range
Symbol
Ratings
Unit
VIN
IOUT
VOUT
PD
TOPR
TSTG
–0.3 to +7.0
500
VSS–0.3 to VIN+0.3
400 (on PCB)
–40 to +85
–55 to +125
V
mA
V
mW
°C
°C
Note :
※1)
Power dissipation depends on conditions of mounting on boards.
PCB dimension is 50mm×50mm×1.6mm.
DETECTION PULSE DRIVING CYCLE (SAMPLING CYCLE)
Period (Typ. 12.5mS)
Awake (12.5μS)
Sleep (Output latched)
time
3
AnaSem Inc.
.......... Future of the analog world
20~50mA Current detection, CMOS+MR Monolithic Current Sensor Switch
CSL2050DTA
Rev. E09-08
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, VIN=3.3V, Ta=25°C)
Items
Symbol
Min.
Typ.
Max.
Detection current
IDET
20
-
50
Detection current hysteresis
IHYS
-
IDET×0.9
-
mA
Detection current limit
IMAX
-
-
500
mA
Coil current resistance
CR
-
800
-
ICS+CS-=100mA
mΩ
Insulation resistance
IR
-
500
-
Between coil and
each terminal
MΩ
Operating voltage
VIN
3.135
3.3
3.465
V
Current consumption
IDD
-
4.7
7.3
μA
ts
-
12.5
-
Pulse width : 1/1000
“H”-level output voltage
VOH
0.9VIN
-
-
IOUT=+1.0mA
V
“L”-level output voltage
VOL
-
-
0.1VIN
IOUT=-1.0mA
V
Detection pulse driving cycle
Conditions
CSL2050DTA
Unit
mA
msec
OUTPUT SWITCHING TIMING CHART
On
Sampling
pulse
IHYS
Off
IDET
(Typ. 30mA)
IOP
IRP
(Typ. 27mA)
H-level
VOUT
L-level
Latch
4
Latch
Latch
AnaSem Inc.
.......... Future of the analog world
20~50mA Current detection, CMOS+MR Monolithic Current Sensor Switch
CSL2050DTA
Rev. E09-08
PACKAGE DIMENSIONS (SOT-26)
(Unit : mm)
2.9±0.2
0.65 –0.15
+0.10
+0.10
0.5 –0.20
a
+0.20
a
1.6 –0.30
2.8 –0.60
+0.40
a
Min 0.1
0~30°
(Marked Side)
0~0.1
0~10°
0.95
1.9±0.2
+0.11
+0.10
0.15 –0.06
Min 0.1
0.95
a
0.65 –0.15
a
a
1.1±0.15
+0.10
a = 0.4 –0.20
Flat length = 0.2 min.
0.7
2.4
1.0
1.1±0.2
0.8±0.1
Recommended land pattern
1.0
0.7
0.95
0.95
1.9
5
AnaSem Inc.
.......... Future of the analog world
20~50mA Current detection, CMOS+MR Monolithic Current Sensor Switch
CSL2050DTA
Rev. E09-08
TAPING AND LOADING SPECIFICATIONS (SOT-26)
(Unit : mm)
1.5±0.1
Mark
ø1.1±0.1
3.5±0.05
3.2±0.1
Mark
2.0±0.05
4.0±0.1
8.0±0.2
ø1.5 +0.1
–0
0.25±0.05
1.75±0.1
4.0±0.1
3.3±0.1
Taping direction
REEL DIMENSIONS (SOT-26)
(Unit : mm)
120°
ø60±1
2.0±0.5
(3,000 pcs / reel)
6
ø178±2
ø13±0.5
90°
9.0±0.5
AnaSem Inc.
.......... Future of the analog world
AnaSem
AnaSem Inc. may change the products described in this data sheet, or may discontinue production or services
without any notice in order to supply the best products through improve the design and performance. Customers
are recommended to obtain the latest data or information before placing orders in order to make sure the data or
information required is the newest. It is necessary for customers to fully understand the products described in this
data sheet and to use it in accordance with its specifications. The products described in this data sheet are not
intended to use for the apparatus which have influence on human lives due to the failure or malfunction of the
products. AnaSem Inc. is not responsible for any support to customer’s application, product design, software
performance, patent infringement or service. AnaSem Inc. does not disclose or imply a guarantee or description
about being licensed based on patents, copy-rights, circuit location license, or other intellectual properties
associated with the devices or combinations in which the products or service of AnaSem Inc. are used or can be
used, or which cover the methods. Customers should not export, directly or indirectly, any products without
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ANASEM INC.