M51951A,B/M51952A,B Voltage Detecting, System Resetting IC Series REJ03D0775-0400 Rev.4.00 Sep 18, 2007 Description M51951A,B/M51952A,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 µs 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 kΩ • Wide supply voltage range: 2 V to 17 V • Wide application range 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 Pin Arrangement M51951AL/BL M51952AL/BL M51951ASL/BSL M51952ASL/BSL M51951AML/BML M51952AML/BML 5 Output 3 Output 4 NC 2 GND 3 GND 1 Supply voltage 2 NC (Top view) 1 Supply voltage Package: PLZZ0004CB-A (SOT-89) (Top view) Package: 5P5T 1. Supply voltage 2. GND 1 3. Output 2 3 (Top view) Package: PRSS0003DF-A (TO-92L) REJ03D0775-0400 Rev.4.00 Sep 18, 2007 Page 1 of 7 M51951A,B/M51952A,B Block Diagram M51951A, B Supply voltage M51952A, B 25µA Typ R1 25µA Typ Output + R2 C Delay capacitor 1.25V Output – – + A: Built-in Load B: Open Collector R1 – R2 Supply voltage A: Built-in Load B: Open Collector 1.25V GND + C Delay capacitor GND Operating Waveform 4.25V 0.65V t H td td L Output undefined td ≈ 200µs REJ03D0775-0400 Rev.4.00 Sep 18, 2007 Page 2 of 7 Supply voltage M51952A, B Output state Output state Supply voltage M51951A, B t 4.25V t H td td L td ≈ 200µs t M51951A,B/M51952A,B Absolute Maximum Ratings (Ta = 25°C, unless otherwise noted) Item Symbol Ratings Unit Supply voltage VCC 18 V Output sink current Isink 6 mA Output voltage VO VCC V 18 Power dissipation Pd Thermal derating Type A (output with constant current load) Type B (open collector output) 450 Kθ Conditions mW 5-pin SIP 700 3-pin SIP 500 3-pin SOP 4.5 mW/°C Ta ≥ 25°C 5-pin SIP 7 3-pin SIP 5 3-pin SOP Operating temperature Topr –30 to +85 °C Storage temperature Tstg –40 to +125 °C Electrical Characteristics (Ta = 25°C, unless otherwise noted) • “L” reset type M51951A, M51951B • “H” reset type M51952A, M51952B Item Symbol Min Typ Max Detecting voltage VS 4.05 4.25 4.45 V Hysteresis voltage ∆VS 30 50 80 mV Detecting voltage temperature coefficient VS/∆T — 0.01 — %/°C Circuit current ICC µA Delay time tpd Output saturation voltage Vsat Threshold operating voltage VOPL Output leakage current IOH Output load current IOC Output high voltage VOH Unit — 450 680 — 420 630 80 200 500 µs — 0.2 0.4 V — 0.2 0.4 Test Conditions Type A, VCC = 5V Type B, VCC = 5V L reset type, VCC = 4V, Isink = 4mA H reset type, VCC = 5V, Isink = 4mA — 0.67 0.8 — 0.55 0.7 — — 30 nA Type B –40 –25 –17 µA Type A, VCC = 5V, VO = 1/2 × VCC VCC–0.2 VCC–0.06 — V Type A REJ03D0775-0400 Rev.4.00 Sep 18, 2007 Page 3 of 7 V L reset type minimum supply voltage for IC operation RL = 2.2kΩ, Vsat ≤ 0.4V RL = 100kΩ, Vsat ≤ 0.4V M51951A,B/M51952A,B Typical Characteristics Thermal Derating (Maximum Rating) Detection Voltage vs. Ambient Temperature (Supply voltage detection series) 4.34 800 Detection Voltage VS (V) Power Dissipation Pd (mW) 1000 3-pin SIP 600 3-pin SOP 5-pin SIP 400 200 0 0 25 50 75 100 4.32 4.30 4.28 4.26 VSL 4.24 4.22 –40 –20 125 Ambient Temperature Ta (°C) 250 VCC = 5V 200 10V 150 VCC = 15V 100 50 20 40 60 1.0 0.1 4 5 Output Sink Current Isink (mA) REJ03D0775-0400 Rev.4.00 Sep 18, 2007 Page 4 of 7 Ta = 25°C RL = 2.2kΩ 0.4 RL = 22kΩ RL = 100kΩ 0.2 0.2 0.4 0.6 0.8 1.0 Output Load Current vs. Output Voltage (M5195xA) Output Load Current ICC (µA) Output Saturation Voltage Vsat (V) 0.2 3 80 100 Supply Voltage VCC (V) Supply voltage detecting "L" reset type : VCC = 4V Except above mentioned : VCC = 5V 2 60 0.6 0 0 80 100 Output Saturation Voltage vs. Output Sink Current 0.3 1 40 0.8 Ambient Temperature Ta (°C) 0 0 20 Threshold Operating Voltage ([L] reset type) Output Voltage VOUT (V) Delay Time tpd (µs) 300 0 0 Ambient Temperature Ta (°C) Delay Time vs. Ambient Temperature (M5195xx, Built-in capacitor type) 350 0 –40 –20 VSH 6 –40 –30 –20 VCC = 5V VCC = 10V VCC = 15V –10 0 0 4 8 12 Output Voltage VO (V) 16 M51951A,B/M51952A,B Circuit Current ICC (µA) Circuit Current vs. Ambient Temperature (M51951B, M51952B) 700 600 500 VCC = 5V 400 300 200 100 0 –40 –20 0 20 40 60 80 100 Ambient Temperature Ta (°C) Example of Application Circuit Reset Circuit of M5195xx Series Supply voltage M51951x M51952x GND RL Output Supply voltage VCC RESET (RESET) Logic circuit GND Figure 1 Reset Circuit of M5195xx Series Notes: 1. When the detecting supply voltage is 4.25 V, M51951, M51952, M51953 and M51954 are used. When the voltage is anything except 4.25 V, M51955, M51956, M51957 and M51958 are used. 2. When the delay time is short, M51951, M51952, M51955 and M51956 are available. These ICs have a delay capacity and the delay time is about 200 µs. If a longer delay time is necessary, M51953, M51954, M51957 and M51958 are used. 3. If the M5195xx 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, M51951, M51953, M51955 and M51957 are used and when the terminal is of the high reset type, M51952, M51954, M51956 and M51958 are used. 6. When a negative supply voltage is used, the supply voltage side of M5195xx and the GND side are connected to negative supply voltage respectively. REJ03D0775-0400 Rev.4.00 Sep 18, 2007 Page 5 of 7 M51951A,B/M51952A,B Package Dimensions 5P5T Plastic 5pin 240mil SIP EIAJ Package Code SIP5-P-240-2.54 JEDEC Code – Weight(g) 0.22 Lead Material Cu Alloy D L A1 A A2 E Symbol 1 5 b e E1 b2 c b1 SEATING PLANE Package Name SOT-89 JEITA Package Code SC-62 RENESAS Code PLZZ0004CB-A MASS[Typ.] 0.48g Previous Code Unit: mm 4.6Max 1.5 ± 0.1 4.2Max 0.8Min 2.5 ± 0.1 1.6 ± 0.2 0.58Max 1.5 3.0 REJ03D0775-0400 Rev.4.00 Sep 18, 2007 Page 6 of 7 0.48Max A A1 A2 b b1 b2 c D E E1 e L Dimension in Millimeters Min Nom Max – – 6.1 – – 1.4 – – 4.0 0.4 0.5 0.6 1.1 1.2 1.5 0.75 0.85 1.15 0.22 0.27 0.34 11.7 11.9 11.5 1.77 1.97 2.17 0.6 0.7 0.8 – – 2.54 – – 3.0 +0.03 0.4 –0.05 M51951A,B/M51952A,B JEITA Package Code RENESAS Code PRSS0003DF-A Package Name TO-92L MASS[Typ.] 0.34g 8.2 Max φ 5.1 Max 2.2 Max 9.5 Min 0.8 0.5 1.27 1.27 REJ03D0775-0400 Rev.4.00 Sep 18, 2007 Page 7 of 7 0.5 4.1 Max 1.35 4.1 Unit: mm Sales Strategic Planning Div. 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