High-accuracy Low current consumption 5 General-purpose 4 RESET IC 1 BD47XXG series 2 1pin : N.C. 2pin : SUB 3pin : GND 4pin : Vout 5pin : Vcc 3 Description (UNIT:mm) 0.2MIN 2.8±0.2 0.2 1.6 +–0.1 2.9±0.2 (5) (4) (1) (2) (3) 1.25MAX 1.1± 0.05±0.05 0.05 BD47XXG is a series of RESET ICs developed to prevent system error at transient state when the power of CPU and logic circuit switches ON/OFF or shutdown. These ICs consist of Power, GND, and reset output to detect power supply voltage of various systems and to output reset signal. These ICs are more practical for portable products because of their ultra-small package and low current consumption. Features 1) Detection voltage: 0.1V step line up 1.9~4.6V(Typ.) 2) High-accuracy voltage detection Vs±2%(Max.) 3) Low current consumption 4) "L" reset output of open collector 5) Small SMP5 package 0.95 0.05 0.13 + –0.03 0.05 0.42 + –0.04 0.1 SMP5 Applications Portable products, Equipments with CPU and logic circuit Series characteristics Part No. BD4746G BD4745G BD4744G BD4743G BD4742G BD4741G BD4740G BD4739G BD4738G BD4737G BD4736G BD4735G BD4734G BD4733G BD4732G BD4731G BD4730G BD4729G BD4728G BD4727G BD4726G BD4725G BD4724G BD4723G BD4722G BD4721G BD4720G BD4719G Detection voltage Vs (V) Min 4.508 4.410 4.312 4.214 4.116 4.018 3.920 3.822 3.724 3.626 3.528 3.430 3.332 3.234 3.136 3.038 2.940 2.842 2.744 2.646 2.548 2.450 2.352 2.254 2.156 2.058 1.960 1.862 Typ. 4.600 4.500 4.400 4.300 4.200 4.100 4.000 3.900 3.800 3.700 3.600 3.500 3.400 3.300 3.200 3.100 3.000 2.900 2.800 2.700 2.600 2.500 2.400 2.300 2.200 2.100 2.000 1.900 Max. 4.692 4.590 4.488 4.386 4.284 4.182 4.080 3.978 3.876 3.774 3.672 3.570 3.468 3.366 3.264 3.162 3.060 2.958 2.856 2.754 2.652 2.550 2.448 2.346 2.244 2.142 2.040 1.938 Consumption current (µA Typ.) ICCH ICCL 1.5 1.6 1.5 1.6 1.5 1.6 1.6 1.5 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.6 1.5 1.6 1.5 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 1.5 1.6 Hysteresis voltage (mV) Operating output current (mA) Package 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 15 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 SMP5 Absolute Maximum Ratings(Ta=25˚C) Symbol Limits Unit Power supply voltage Vcc –0.3 ~ +10 V Output voltage Po Power dissipation (SMP5) Pd –0.3 ~ +10 150 * Parameter V Operating temperature range Topr –20 ~ +75 mW ˚C Storage temperature range Tstg –40 ~ +125 ˚C Note) The ratings shown above indicate breakdown limit of the pin and should not be regarded as the values that guarantee the operation. * Derating : 1.5mW/˚C for operation above Ta=25˚C Electrical characteristics(Unless otherwise noted; Ta=25˚C) Parameter Symbol Min. Typ. Max. Detection voltage Vs –2% 1.9~4.6 +2% V Detection voltage temperature coefficient Vs/∆T — ±0.01 — %/˚C RL=4.7KΩ, Ta=–20~+75˚C Hysteresis voltage ∆Vs 30 50 100 mV RL=4.7KΩ, Vcc=LÆHÆL "H" transfer delay time TPLH — 20 50 µS CL=100PF, RL=4.7KΩ *1 "L" transfer delay time TPHL — 60 120 µS CL=100PF, RL=4.7KΩ *2 "L" output voltage VOL — 0.1 0.4 V Vcc=VsMIN.–0.05V, RL=4.7KΩ Circuit current (At ON mode) Icc1 — 1.5 3.0 µA Vcc=VsMIN.–0.05V, RL=∞ Circuit current (At OFF mode) Operating limit voltage Output leak current "L" output current Unit Conditions RL=4.7kΩ, Vcc=HÆL Icc2 — 1.6 3.2 µA Vcc=VsTYP./0.85V, RL=∞ VOPL — 0.65 0.85 V RL=4.7KΩ, VOL≥0.4V IL IOL — 3.0 — 15.0 0.1 — µA mA Vcc=Vout=10V Vo=0.4V, Vcc=VsMIN.–0.05V *1 TPLH : Vcc=(Vs typ.–0.4V)Æ(Vs typ.+0.4V) *2 TPHL : Vcc=(Vs typ.+0.4V)Æ(Vs typ.–0.4V) Timing waveform VCC VOUT Transfer delay time measurement circuit VCC VS+∆VS VS 0.22uF 0V RL=4.7KΩ 5 4 Vcc Vout BD47XXG VCC VOH TPLH TPHL NC SUB GND 1 2 3 VOL Application Circuit VDD 5 VCC Micro controller 4 reset pin Vout Vref BD47XXG 3 GND 100pF Characteristic diagram and Measurement circuit (When BD4729G is measured.) I/O characteristic 6 5 4 Vout (V) Icc (µA) Current consumption 10 9.5 9 8.5 8 7.5 7 6.5 6 5.5 5 4.5 4 3.5 3 2.5 2 1.5 Icc1=1.34µA 1 Icc2=1.46µA 0.5 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 Vcc (V) 3 2 Vs=2.9V Vs=2.95V 1 dVs=50mV 0 0 0.5 1 1.5 2 2.5 3 3.5 Vcc (V) 4 4.5 5 5.5 6 R=4.7K A Vcc VOUT NC Vcc VOUT BD4729G V 10µF BD4729G V V 10µF GND GND Operating limit voltage 'L' output current 800 1000 900 700 800 600 700 500 Vout (mV) Vout (mV) 600 500 400 400 IOL=12.194mA@Vo=400mV 300 VOPL=0.675V 300 200 200 100 100 0 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75 0 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25 27.5 30 32.5 Vcc (V) Iol (mA) R=4.7K Vcc V Vcc VOUT BD4729G 10µF GND BD4729G V A VOUT 10µF GND V IOL Setting of the RESET signal delay time Delay time can be set by capacitor CL and resistance RL connected to the output pin as shown below. CL is charged by RL when Vcc is rising. The delay time caused by charging is determined by the time constant of CL, RL and the threshold voltage of RESET pin. RESET IC discharges CL forcedly when Vcc is falling. The delay time of RESET signal is determined by adding the delay time of single RESET IC to each time. VCC VS+∆VS VS VCC Vcc BD47XXG RL VDD RESET Vout CL GND CPU Micro-controller GND 0V RESET VOH (=VOUT) TPLH TPHL TPLH VOL Part number and Marking of samples (4) (5) (1) (2) (3) Marking Lot.No Marking Voltage Part No. Marking Voltage Part No. Marking Voltage BA 1.9V BD4719 BK 2.9V BD4729 BU 3.9V BD4739 BB 2.0V BD4720 BL 3.0V BD4730 BV 4.0V BD4740 BC 2.1V BD4721 BM 3.1V BD4731 BW 4.1V BD4741 BD 2.2V BD4722 BN 3.2V BD4732 BX 4.2V BD4742 BE 2.3V BD4723 B4 3.3V BD4733 BY 4.3V BD4743 BF 2.4V BD4724 BP 3.4V BD4734 BZ 4.4V BD4744 BG 2.5V BD4725 BQ 3.5V BD4735 B1 4.5V BD4745 BH 2.6V BD4726 BR 3.6V BD4736 B2 4.6V BD4746 B3 2.7V BD4727 BS 3.7V BD4737 BJ 2.8V BD4728 BT 3.8V BD4738 Part No. Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.0