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 z z z z z z z z z z z 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 z z z z 1 Over current detection Battery current detection Switching power supply Motor control feedback detection z z z z 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. 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