BD3021HFP-M_10 ROHM [Rohm], BD3021HFP-M_10 Datasheet
BD3021HFP-M_10
Related parts for BD3021HFP-M_10
BD3021HFP-M_10 Summary of contents
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... BD3021HFP-M ●Description BD3021HFP regulator IC with integrated WDT (Watch Dog Timer), high output voltage accuracy ±2.0% and 80µA (Typ.) low circuit current consumption. BD3021HFP-M supports usage of low ESR ceramic capacitor for output stability. BD3021HFP-M can be a stable power supply for any applications while detecting malfunction of microcontrollers. ...
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... BD3021HFP-M ●Electrical characteristics (Unless otherwise specified, Ta=25°C, Vcc=13.5V, CLK=GND) Parameter Overall Device Bias current 1 Bias current 2 Regulator Output voltage Line regulation Load regulation Dropout voltage Ripple rejection Reset Detection voltage Hysteresis width Output delay time LowHigh (Power on reset time) Output delay time High→Low ...
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... BD3021HFP-M ●Electrical characteristics (Unless otherwise specified, Ta=25°C, Vcc=13.5V, CLK=GND ) 120 Ta=125 ℃ 100 80 60 Ta=25 ℃ Ta=-40 ℃ SUPPLY VOLTAGE: Vcc [V] Fig.1 Circuit Current 6 Ta=25 ℃ Ta=-40 ℃ Ta=125 ℃ 0.0 0.2 0.4 0.6 0.8 1.0 1.2 OUTPUT CURRENT: Io[A] Fig. 4 Load Stability 5.50 5.25 5.00 4.75 4.50 - 120 AMBIENT TEMPERATURE ℃ ...
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... BD3021HFP-M ●Measurement Circuit for Reference Data CLK INH GND VOUT RESET CT Vcc A Measurement Circuit of Fig.1 CLK INH Vcc GND VOUT RESET Measurement Circuit of Fig.4 CLK INH Vcc GND VOUT RESET CT V Measurement Circuit of Fig.9 and Fig11 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. ...
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... BD3021HFP-M ●Block diagrams VREF_R Pin No. Pin Name 1 CLK 2 INH 3 Vcc 4 GND 5 VOUT 6 RESET 7 CT Fin GND ●TOP VIEW (Package dimension) HRP7 9.395±0.125 (MAX 9.745 include BURR) 8.82±0.1 (6. 0.8875 0.73±0.1 1.27 0.08 S www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. ...
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... BD3021HFP-M ●Input / Output Equivalent Circuit Diagrams (Resistance value is typical value) CLK(1pin) VOUT 10kΩ CLK VOUT(5pin) Vcc VOUT 3.7MΩ 1.25MΩ www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. INH(2pin) VOUT INH 10kΩ 500kΩ RESET(6pin) VOUT 470kΩ RESET 1kΩ ...
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... BD3021HFP-M ●BD3021HFP-M (Power on Reset / Watchdog Timer) Power ON reset (output delay time) is adjustable by CT pin capacitor. TdLH(S) ≒(1.15V×CT capacitance(µF) / Ictc(µA) :Output delay time( power ON reset) ・TdLH ・1.15V :Upper switching threshold voltage(Typ.) ・CT capacitance :capacitor connected to CT pin :WDT charge current ・ ...
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... BD3021HFP-M ●WDT timer ON/OFF switch INH (Resistance value is typical value) BD3021HFP-M has a switch INH to turn the WDT ON/OFF INH By using INH ON, CT potential can be pulled up to internal voltage VREF_R (invalid with power ON reset)) ＜Timing Chart＞ 13.5V Vcc 0V 5V VOUT 0V WDT ON 5V ...
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... BD3021HFP-M ＜Timing Chart＞ 13.5V Vcc 5. VOUT INH 0V 1.25V 1.15V CT 0.15V 0V CLK 0V Power on reset OUT voltage RESET Minimum reset Movement voltage 0V Reset ON www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 4.60V VHS100mV 4.50V WDT OFF(INH=ON) Watch time CLK width<500ns ...
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... BD3021HFP-M ●Thermal Design 10 Mounted on a Rohm standard board Board size : 70 ㎜×70 ㎜×1.6 ㎜ θja=78.1(℃/ 1.60W AMBIENT TEMPERATURE:Ta[ ℃ ] Fig.14 Refer to Fig.14 and Fig.15 thermal dissipation characteristics for usage above Ta=25℃. The IC’s characteristics are affected heavily by the temperature, and if is exceeds its max junction temperature (Tjmax), the chip may degrade or destruct ...
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... BD3021HFP-M ●Pin Settings / Precautions 1. Vcc Pin Insert a 0.33 ~ 1000µF capacitor between the Vcc and GND pins. The appropriate capacitance value varies by application. Be sure to allow a sufficient margin for input voltage levels. 2. Output pins It is necessary to place capacitors between each output pin and GND to prevent oscillation on the output. Usable capacitance values range from 0.1µ ...
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... BD3021HFP-M ●Notes for use 1. Absolute maximum ratings Use of the IC in excess of absolute maximum ratings (such as the input voltage or operating temperature range) may result in damage to the IC. Assumptions should not be made regarding the state of the IC (e.g., short mode or open mode) when such damage is suffered. If operational values are expected to exceed the maximum ratings for the device, consider adding protective circuitry (such as fuses) to eliminate the risk of damaging the IC ...
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... BD3021HFP-M 12. Positive voltage surges on VCC pin A power zener diode should be inserted between VCC and GND for protection against voltage surges of more than 50V on the VCC pin. 13. Negative voltage surges on VCC pin A schottky barrier diode should be inserted between VCC and GND for protection against voltages lower than GND on the VCC pin ...
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... BD3021HFP-M ●Ordering part number Part No. Part No. HRP7 9.395±0.125 (MAX 9.745 include BURR) 1.905±0.1 8.82±0.1 (6. 0.8875 0.73±0.1 S 1.27 0.08 S www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved Package HFP:HRP7 <Tape and Reel information> ...
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