Preliminary Datasheet RNA51951A, B Voltage Detecting, System Resetting IC Series R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 Description RNA51951A,B are semiconductor integrated circuits designed for detecting supply voltage and resetting all types of logic circuits such as CPUs. They include a built-in delay circuit to provide a retardation time (200 s Typ). They fined extensive applications, including battery checking circuit, level detecting circuit and waveform shaping circuit. Features Few external parts Low threshold operating voltage (Supply voltage to keep low-state at low supply voltage): 0.6 V (Typ) at RL = 22 k Wide supply voltage range: 2 V to 17 V Wide application range Ordering Information Taping Abbreviation (Quantity) Package Type Package Code Package Abbreviation RNA51951AFPH0 SOP-8 pin PRSP0008DE-C FP H (2,500 pcs / Reel) 0 (Ni/Pd/Au) RNA51951APT0 Part Name Surface Treatment DIP-8 pin PRDP0008AF-B P T (1,000 pcs / Box) 0 (Ni/Pd/Au) RNA51951AUPH1 UPAK PLZZ0004CA-A UP H (1,000 pcs / Reel) 1 (Sn-Bi) RNA51951BFPH0 SOP-8 pin PRSP0008DE-C FP H (2,500 pcs / Reel) 0 (Ni/Pd/Au) RNA51951BPT0 DIP-8 pin PRDP0008AF-B P T (1,000 pcs / Box) 0 (Ni/Pd/Au) UPAK PLZZ0004CA-A UP H (1,000 pcs / Reel) 1 (Sn-Bi) RNA51951BUPH1 Application Reset circuit of Pch, Nch, CMOS, microcomputer, CPU and MCU, Reset of logic circuit, Battery check circuit, switching circuit back-up voltage, level detecting circuit, waveform shaping circuit, delay waveform generating circuit, DC/DC converter, over voltage protection circuit Recommended Operating Condition Supply voltage range: 2 V to 17 V R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 Page 1 of 9 RNA51951A, B Preliminary Outline and Article Indication • RNA51951A, B Part No. R951A YMWC CCC R951B YMWC CCC SOP-8 Pin No.1 Lot No. Y: Year Code (the last digit of year) M: Month Code W: Week Code C: Control Code Trace Code Part No. R5 1 9 5 1A R5 1 9 5 1B Y MW Y MW DIP-8 W: Week Code M: Month Code Y: Year Code Part No. 5 1 A 5 1 B Y MW Y MW UPAK W: Week Code M: Month Code Y: Year Code R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 Page 2 of 9 RNA51951A, B Preliminary Pin Arrangement RNA51951A, B RNA51951A, B NC 1 8 NC NC 2 7 Power-supply NC 3 6 Output GND 4 5 NC (Top view) 3 Output 2 GND 1 Supply voltage (Top view) NC: No Connection Outline: PRSP0008DE-C (SOP-8) PRDP0008AF-B (DIP-8) Outline: PLZZ0004CA-A (UPAK) Block Diagram RNA51951A, B Supply voltage A: Built-in Load B: Open Collector 25 μA Typ R1 Output – – + R2 1.25 V C Delay capacitor GND Operating Waveform Output state Supply voltage RNA51951A, B 4.25 V 0.65 V t H td L Output undefined R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 td td ≈ 200 μs t Page 3 of 9 RNA51951A, B Preliminary Absolute Maximum Ratings (Ta = 25°C, unless otherwise noted) Item Supply voltage Output sink current Symbol VCC Isink Output voltage VO Power dissipation Pd Ratings 18 6 VCC 18 400 570 Unit V mA V mW 1 Thermal derating K Operating temperature Storage temperature Topr Tstg Note: 800 * 4.4 8.3 –40 to +85 –55 to +125 mW/°C Conditions Type A (output with constant current load) Type B (open collector output) 8-pin SOP (PRSP0008DE-C) 8-pin DIP (PRDP0008AF-B) UPAK (PLZZ0004CA-A) 8-pin SOP (PRSP0008DE-C) Refer to the thermal derating curve. 8-pin DIP (PRDP0008AF-B) °C °C 1. 15 mm 25 mm 0.7 mmt alumina ceramic board, Ta 25°C. If Ta > 25°C, derate by 6.4 mW/°C. Electrical Characteristics (Ta = 25°C, unless otherwise noted) “L” reset type Item Detecting voltage Hysteresis voltage Symbol VS VS Detecting voltage temperature coefficient VS/T Circuit current ICC Delay time Output saturation voltage tpd Vsat Threshold operating voltage VOPL Output leakage current Output load current Output high voltage IOH IOC VOH R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 Min 4.05 30 Typ 4.25 50 Max 4.45 80 Unit V mV — 0.01 — %/°C — — 80 — — — — –40 VCC–0.2 450 420 200 0.2 0.67 0.55 — –25 VCC–0.06 680 630 500 0.4 0.8 0.7 30 –17 — A s V V nA A V Test Conditions Type A, VCC = 5V Type B, VCC = 5V VCC = 4V, Isink = 4mA RL = 2.2k, Vsat 0.4V RL = 100k, Vsat 0.4V Type B Type A, VCC = 5V, VO = 1/2 VCC Type A Page 4 of 9 RNA51951A, B Preliminary Typical Characteristics Thermal Derating Detection Voltage vs. Ambient Temperature 4.34 800 Detection Voltage VS (V) Power Dissipation Pd (mW) 900 UPAK (PLZZ0004CA-A) 700 600 500 400 8-pin DIP (PRDP0008AF-B) 300 200 8-pin SOP (PRSP0008DE-C) 100 0 0 25 4.30 4.28 4.26 VSL 4.24 Delay Time vs. Ambient Temperature 350 250 VCC = 5V 200 10V 150 VCC = 15V 100 50 20 40 60 20 40 60 80 100 Threshold Operating Voltage 1.0 Output Voltage VOUT (V) Delay Time tpd (μs) 300 0 0 Ambient Temperature Ta (°C) Ambient Temperature Ta (°C) 0 –40 –20 VSH 4.22 –40 –20 7585 100 125 150 50 4.32 0.8 0.6 RL = 2.2 kΩ 0.4 RL = 22 kΩ RL = 100 kΩ 0.2 0 0 80 100 Ta = 25°C 0.2 0.4 0.6 0.8 1.0 Supply Voltage VCC (V) Output Saturation Voltage vs. Output Sink Current Output Load Current vs. Output Voltage (RNA51951A) 0.3 Output Load Current ICC (μA) Output Saturation Voltage Vsat (V) Ambient Temperature Ta (°C) VCC = 4 V 0.2 0.1 0 0 1 2 3 4 5 Output Sink Current Isink (mA) R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 6 –40 –30 –20 VCC = 5 V VCC = 10 V VCC = 15 V –10 0 0 4 8 12 16 Output Voltage VO (V) Page 5 of 9 RNA51951A, B Preliminary Circuit Current ICC (μA) Circuit Current vs. Ambient Temperature (RNA51951B) 700 600 500 VCC = 5 V 400 300 200 100 0 –40 –20 0 20 40 60 80 100 Ambient Temperature Ta (°C) Example of Application Circuit Reset Circuit of RNA51951 Powersupply RL Output RNA51951x GND Powersupply VCC RESET Logic circuit GND Figure 1 Reset Circuit of RNA51951 Notes: 1. When the voltage is anything except 4.25 V, RNA51955, RNA51957, and RNA51958 are used. In this case, the detecting supply voltage is 1.25 (R1 +R2)/R2 (V) approximately. The detecting supply voltage can be set between 2 V and 15 V. 2. When the delay time is short, RNA51951 and RNA51955 are available. These ICs have a delay capacity and the delay time is about 200 s. If a longer delay time is necessary, RNA51953, RNA51957, and RNA51958 are used. 3. If the RNA5195xx and the logic circuit share a common power source, type A (built-in load type) can be used whether a pull-up resistor is included in the logic circuit or not. 4. The logic circuit preferably should not have a pull-down resistor, but if one is present, add load resistor RL to overcome the pull-down resistor. 5. When the reset terminal in the logic circuit is of the low reset type, RNA51951, RNA51953, RNA51955, and RNA51957 are used and when the terminal is of the high reset type, RNA51958 are used. 6. When a negative supply voltage is used, the supply voltage side of RNA5195xx and the GND side are connected to negative supply voltage respectively. R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 Page 6 of 9 RNA51951A, B Preliminary Notice for use About the Power Supply Line 1. About bypass capacitor Because the ripple and the spike of the high frequency noise and the low frequency are superimposed to the power supply line, it is necessary to remove these. Therefore, please install C1 and C2 for the low frequency and for the high frequency between the power supply line and the GND line as shown in following figure 2. VCC + C1 C2 Power-supply Output Example of ripple noise measures RNA51951 GND Figure 2 Example of Ripple Noise Measures Setting of Output Load Resistance (RNA51951B) High level output voltage can be set without depending on the power-supply voltage because the output terminal is an open collector type. However, please guard the following notes. 1. Please set it in value (2 V to 17 V) within the range of the power-supply voltage recommendation. Moreover, please never impress the voltage of maximum ratings 18 V or more even momentarily either. 2. Please set output load resistance (pull-up resistance) RL so that the output current (output inflow current IL) at L level may become 4 mA or less. Moreover, please never exceed absolute maximum rating (6 mA). VCC (2 V to 17 V) RL 6 IL ≤ 4 mA Figure 3 Output Load Resistance RL Others 1. Notes when IC is handled are published in our reliability handbook, and please refer it. The reliability handbook can be downloaded from our homepage (following URL). http://www.renesas.com/products/common_info/reliability/reliability_root.jsp 2. Additionally, please inquire of our company when there is an uncertain point on use. R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 Page 7 of 9 RNA51951A, B Preliminary Package Dimensions JEITA Package Code P-SOP8-4.4x4.85-1.27 RENESAS Code PRSP0008DE-C *1 Previous Code — MASS[Typ.] 0.1g F D 8 NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. 5 c *2 E HE bp Index mark Terminal cross section ( Ni/Pd/Au plating ) Reference Dimension in Millimeters Symbol 4 1 *3 e Z bp x M A A2 L1 A1 θ L y Detail F JEITA Package Code P-DIP8-6.3x9.6-2.54 RENESAS Code PRDP0008AF-B Previous Code DP-8FV D E A2 A1 A bp b1 c c1 θ HE e x y Z L L1 Min Nom Max 4.65 4.85 5.05 4.2 4.4 4.6 1.85 0.00 0.1 0.20 2.03 0.34 0.4 0.46 0.15 0.20 0.25 0° 8° 5.7 6.2 6.5 1.12 1.27 1.42 0.12 0.10 0.75 0.25 0.45 0.65 0.90 MASS[Typ.] 0.54g D 5 E 8 1 4 b3 0.89 A Z A1 Reference Dimension in Millimeters Symbol L Min e bp θ c e1 ( Ni/Pd/Au plating ) R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 e1 D E A A1 bp b3 c θ e Z L Nom Max 7.62 9.60 10.6 6.30 7.4 5.06 0.5 0.40 0.48 0.56 1.30 0.19 0.25 0.31 15° 0° 2.29 2.54 2.79 1.27 2.54 Page 8 of 9 RNA51951A, B 1.5 1.5 3.0 R03DS0003EJ0301 Rev.3.01 Apr 19, 2011 MASS[Typ.] 0.050g 1.5 ± 0.1 0.44 Max 2.5 ± 0.1 4.25 Max 0.53 Max 0.48 Max 0.8 Min φ1 0.4 4.5 ± 0.1 1.8 Max Previous Code UPAK / UPAKV Unit: mm (1.5) 0.44 Max (0.2) RENESAS Code PLZZ0004CA-A (2.5) JEITA Package Code SC-62 (0.4) Package Name UPAK Preliminary Page 9 of 9 Notice 1. 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