RT9711DPBG

RT9711A RICHTEK | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 9

Technical content

Features

zzzzz User Programmable Threshold 1.5V to 5V in 0.1V Step with ±±±±±3% Accuracy zzzzz Low Supply Current 3μμμμμA zzzzz Quick Reset within 20μμμμμs zzzzz Built-in Recovery Delay 200ms zzzzz Low Functional Supply Voltage 0.9V zzzzz Small SOT-23-6 Package zzzzz RoHS Compliant and 100% Lead (Pb)-Free

Applications

z Critical μP and μC Power Monitoring z Portable/Battery-Powered Equipment Marking Information For marking information, contact our sales representative directly or through a RichTek distributor located in your area, otherwise visit our website for detail. VSET0 GND RESET VSET1 VSET2 VDD Note : There is no pin1 indicator on top mark for SOT-23-6 type, and pin 1 will be lower left pin when reading top mark from left to right. Note : RichTek Pb-free and Green products are : \RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. \Suitable for use in SnPb or Pb-free soldering processes. \`100%matte tin (Sn) plating. Typical Application Circuit VSET0 GND RESET VSET1 VSET2 VDD RT9801 GND RESET VDD μP Pull Up RT9801 VTH = 2.5V in this example RT9801 Package Type E : SOT-23-6 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) Reset Threshold A : 2.5V to 5V B : 1.5V to 4V

DS9801AB-11 March 2007www.richtek.com Functional Pin Description Pin Name Pin Function VSET0 Threshold Voltage Selection Pin GND Ground Pin RESET Reset Pulse Output, Negative Pulse VDD Power Pin VSET1 Threshold Voltage Selection Pin VSET2 Threshold Voltage Selection Pin Function Block Diagram Test Circuits Detection Voltage Output Transistor Current Current Consumption Dynamic Response Note : Threshold Voltage Setting refer to the Table.1 6VRT9801A/B GND RESET CRT 100KVDD CL P.G VDD RT9801A/B GND V RESET VDD A VSET CMP Timer POR Threshold Voltage Setting Power On Reset VDD VSET1 RESET N MOS VSET0 VSET2 Internal Clock GND RT9801A/BVDD GND V RESET R 100K Oscilloscopes VDD VRESET VDD RT9801A/B GND RESET VDD A V V

DS9801AB-11 March 2007 www.richtek.com Absolute Maximum Ratings z Terminal Voltage (with Respect to GND) z Continuous Power Dissipation, PD @ TA = 25°C z Package Thermal Resistance

Electrical Characteristics

(VDD = 3V, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Units Operating VDD Range VDD 0.9 -- 6 V -- -- 3 Supply Current IDD VDD = 1.5V ~ 3.5V, ISINK = 0 VDD = 3.5V ~ 5V, ISINK = 0 -- -- 3.3 μA Reset Threshold VTH TA = 27°C -- Note1 -- V Threshold Voltage Accuracy ΔVTH TA = 27°C -- -- 3 % VDD Drop to Reset Delay t RD Drop = -125mV -- -- 20 μs Reset Active Timeout Period tRP V DD ≥ 1.02×VTH, Programmable 120 200 280 ms VIL T A = 27°C -- 0.15VDD -- VSET Pin Input Threshold VIH T A = 27°C -- 0.85VDD -- V RESET Output Voltage VOL V DD < VTH, ISINK = 3.5mA -- 0.4 -- V Timing Diagram VDD VTH VRESET tRP tRD Drop VDD VTH VRESET

DS9801AB-11 March 2007www.richtek.com Table 1: Pin Conditions for Programmable Threshold Voltage Setting RT9801A RT9801B VSET0 VSET1 VSET2 5.0 4.0 H H H 4.9 3.9 H H F 4.8 3.8 H H L 4.7 3.7 H F H 4.6 3.6 H F F 4.5 3.5 H F L 4.4 3.4 H L H 4.3 3.3 H L F 4.2 3.2 H L L 4.1 3.1 F H H 4.0 3.0 F H F 3.9 2.9 F H L 3.8 2.8 F F H 3.7 2.7 F F F 3.6 2.6 F F L 3.5 2.5 F L H 3.4 2.4 F L F 3.3 2.3 F L L 3.2 2.2 L H H 3.1 2.1 L H F 3.0 2.0 L H L 2.9 1.9 L F H 2.8 1.8 L F F 2.7 1.7 L F L 2.6 1.6 L L H 2.5 1.5 L L F Note : 1. H : Connected to VDD 2. L : Connected to GND 3. F : Floating

DS9801AB-11 March 2007 www.richtek.com Typical Operating Characteristics VRESET vs. VDD VDD (V) VRESET (V) 2.0V 2.4V 4.5V 3.0V 5.0V TA = 25°C N-Ch Driver Sink Current vs. VRESET 00 . 511 . 522 . 53 VRESET (V) Sink Current I SINK (mA) VDD = 1.7V VDD = 1.5V TA = 25°C VTH = 2V N-Ch Driver Sink Current vs. VRESET 00 . 511 . 522 . 53 VRESET (V) Sink Current I SINK (mA) TA = 25°C VTH = VDD = 2.0V VDD = 2.2V VDD = 1.5V N-Ch Driver Sink Current vs. VRESET 01234 VRESET (V) Sink Current I SINK (mA) TA = 25°C VTH = 4.5V VDD = 3.5V VDD = 4.0V VDD = 3.0V VDD = 2.0V VDD = 2.5V VDD = 1.5V N-Ch Driver Sink Current vs. VRESET 00 . 511 . 522 . 53 VRESET (V) Sink Current I SINK (mA) TA = 25°C VTH = 3V VDD = 2.0V VDD = 2.8V VDD = 1.5V N-Ch Driver Sink Current vs. VRESET 012345 VRESET (V) Sink Current I SINK (mA) TA = 25°C VTH = 5V VDD = 3.5V VDD = 4.0V VDD = 3.0V VDD = 2.0V VDD = 2.5V VDD = 1.5V VDD = 4.5V

DS9801AB-11 March 2007www.richtek.com Reset Threshold Deviation vs. Temperature 2.4 2.8 3.2 3.6 4.4 4.8 5.2 -40 -15 10 35 60 85 Temperature Threshold Voltage (V) (°C) VTH = VTH = 4.5V VTH = VTH = 2.5V Supply Current vs. Input Voltage 0123456 Input Voltage VDD (V) Supply Current IDD (uA) TA = -30°C TA = 25°C TA = 80°C VTH = 2V Supply Current vs. Input Voltage 0246 Input Voltage VDD (V) Supply Current IDD (uA) TA = -30°C TA = 25°C TA = 80°C VTH = 2.4V Supply Current vs. Input Voltage 0123456 Input Voltage VDD (V) Supply Current IDD (uA) TA = -30°C TA = 25°C TA = 80°C VTH = 4.5V Supply Current vs. Input Voltage 0123456 Input Voltage VDD (V) Supply Current IDD (uA) TA = -30°C TA = 25°C TA = 80°C VTH = 3V Supply Current vs. Input Voltage 0123456 Input Voltage VDD (V) Supply Current IDD (uA) VTH = 5V TA = -30°C TA = 25°C TA = 80°C

DS9801AB-11 March 2007 www.richtek.com N-Ch Driver Sink Current vs. Input Voltage 0123456 Input Voltage VDD (V) Sink Current I SINK (mA) VTH = 5V VRESET = 0.5V TA = -30°C TA = 25°C TA = 80°C N-Ch Driver Sink Current vs. Input Voltage 012345 Input Voltage VDD (V) Sink Current I SINK (mA) VTH = 4.5V VRESET = 0.5V TA = -30°C TA = 25°C TA = 80°C N-Ch Driver Sink Current vs. Input Voltage 00 . 511 . 522 . 533 . 5 Input Voltage VDD (V) Sink Current I SINK (mA) VTH = 3V VRESET = 0.5V TA = -30°C TA = 25°C TA = 80°C N-Ch Driver Sink Current vs. Input Voltage 00 . 511 . 522 . 53 Input Voltage VDD (V) Sink Current I SINK (mA) VTH = 2.0V VRESET = 0.5V TA = -30°C TA = 25°C TA = 80°C N-Ch Driver Sink Current vs. Input Voltage 00 . 511 . 522 . 53 Input Voltage VDD (V) Sink Current I SINK (mA) VTH = 2.5V VRESET = 0.5V TA = -30°C TA = 25°C TA = 80°C Reset Active Timeout Period vs. Temperature 100 150 200 250 300 350 -40 -15 10 35 60 85 Temperature Reset Active Timeout Period (ms) VTH = 4.5V VTH = VTH = VTH = 2.4V VTH = (°C)

DS9801AB-11 March 2007www.richtek.com Output Delay Time vs. Load Capacitance 100 1000 0.0001 0.001 0.01 0.1 Load Capacitance COUT ( uF ) Output Delay Time t P (ms) TA = 25°C VTH = VTH = VTH = VTH = VTH = 3V VDD Drop to Reset Delay vs. Temperature 0.0 1.0 2.0 3.0 4.0 -40 -15 10 35 60 85 Temperature( C) VDD Drop to Reset Delay ( us ) A VDROP = 150mV VDROP = 250mV VDROP = 200mV (°C) VTH = VDD Drop to Reset Delay vs. Temperature 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -40 -15 10 35 60 85 Temperature ( C) VDD Drop to Reset Delay ( us ) A (°C) VDROP = 150mV VDROP = 250mV VDROP = 200mV VTH = VDD Drop to Reset Delay vs. Temperature 0.0 0.3 0.6 0.9 1.2 1.5 -40 -15 10 35 60 85 Temperature VDD Drop to Reset Delay ( us ) A VDROP = 150mV VDROP = 250mV VDROP = 200mV (°C) VTH = VDD Drop to Reset Delay vs. Temperature 0.0 0.3 0.6 0.9 1.2 1.5 -40 -15 10 35 60 85 Temperature VDD Drop to Reset Delay ( us ) A VDROP = 150mV VDROP = 250mV VDROP = 200mV (°C) VTH = VDD Drop to Reset Delay vs. Temperature 0.0 0.3 0.6 0.9 1.2 1.5 -40 -15 10 35 60 85 Temperature VDD Drop to Reset Delay ( us ) A VDROP = 150mV VDROP = 250mV VDROP = 200mV (°C) VTH =

DS9801AB-11 March 2007 www.richtek.com Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Richtek Technology Corporation Taipei Office (Marketing) 8F, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com Outline Dimension A e b B D C H L SOT-23-6 Surface Mount Package Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 0.889 1.295 0.031 0.051 A1 0.000 0.152 0.000 0.006 B 1.397 1.803 0.055 0.071 b 0.250 0.560 0.010 0.022 C 2.591 2.997 0.102 0.118 D 2.692 3.099 0.106 0.122 e 0.838 1.041 0.033 0.041 H 0.080 0.254 0.003 0.010 L 0.300 0.610 0.012 0.024