BA4907FP-E2

1/4 STRUCTURE Silicon Monolithic Integrated Circuit TYPE System Power Supply with Voltage Detector Function PRODUCT SERIES ＢＡ４９０７ＦＰ ・Built in multiple microcontroller outputs, RESET with a microcontroller delay, FEATURES BATTERY／ACCESSORY voltage detection. ○ABSOLUTE MAXIMUM RATINGS（Ta＝25℃） Symbol Limits Unit Supply Voltage Parameter Vcc 36 V Power Dissipation１ Pd1 0.85 W Power Dissipation２(*1) Pd2 1.45 W Power Dissipation３(*2) Pd3 6.60 W Operating Temperature Range Topr -40～+85 ℃ Storage Temperature Range Tstg -55～+150 ℃ Vcc PEAK 50（注１） V Peak Supply Voltage Bias voltage is less than 200 msec. (tr≧1msec) （*1）Mounted on 70mm × 70mm × 1.6mm Glass epoxy PCB(Ta=25℃). （*2）With infinity Al heat sink(Ta=75℃). ○RECOMMENDED OPERATING RANGES（Ta=25℃） Parameter Supply Voltage Min. Typ. Max. Unit 7.85 14.4 18 V *No guarantee electrical characteristics. *This product is not designed for protection against radioactive rays. *The product described in this specification is a strategic product (and/or service) subject to COCOM regulations. It should not be exported without authorization from the appropriate government. REV. A 2/4 ○ELECTRICAL CHARACTERISTICS(Unless otherwise specified, Ta=25℃，Vcc=14.4V） Parameter Min. - Limits Typ. 125 Max. 150 4.75 100 4.75 100 4.75 100 - 5.0 5 90 1.9 60 5.0 10 90 1.9 60 5.0 10 90 1.9 60 6.2 - Limits Condition μA Vcc=14.4V 5.25 50 2.6 5.25 2.6 5.25 2.6 - V mV mV V mA dB V mV mV V mA dB V mV mV V mA dB Io=150mA 7.85V≦Vcc≦18V 5mA≦Io≦150mA Vcc≧5V 7.5 2.25 5.25 8.1 - V V V 2.7 1 2.5 3.00 160 - 2.8 4 3.1 3.33 200 - 2.9 3.7 3.66 240 50 50 V mA KΩ V KΩ μsec μsec VDD Voltage RESET≦0.5V VDD=5V VDD=5V ※VDD=5V 1.18 36 4.0 5 0.1 - 1.23 72 10 0.2 - 1.28 144 5.25 0.5 50 50 V mV V V mA mA μsec μsec L→H Hysteresis Width 36 72 144 mV Output Voltage H 4.0 - 5.25 V Io=5μA Output Voltage L - - 0.5 V I1=OmA Output Current H 5 10 - mA VOH≧4V Output Current L 0.1 0.2 - mA VOL≦0.5V - - 50 μsec Acc Fall Time 50 ※Delay Time t=200KΩ×1.15C（sec） ※Design Guarantee(Outgoing Inspection is not done on all products) μsec Standby Current [Output Block] Output Voltage (VDD) Line Regulation Load Regulation Dropout Voltage Peak Output Current Ripple Rejection Output Voltage（REG1） Line Regulation Load Regulation Dropout Voltage Peak Output Current Ripple Rejection Output Voltage（REG2） Line Regulation Load Regulation Dropout Voltage Peak Output Current Ripple Rejection [VBU Detector Block] Detection Voltage H Detection Voltage L Hysteresis Width [RESET Block] Detection Voltage Sink Current RESET Pull Up Resistance C Terminal Voltage Charge Resistance RESET Rise Time RESET Fall Time [BATT Voltage Detection] Threshold Voltage Hysteresis Width BUF Voltage H BUF Voltage L Output Current H Output Current L BUF Rise Time BUF Fall Time [Acc Voltage Detection] Acc Rise Time REV. A Io=50mA 7.85V≦Vcc≦18V,Io=50mA Io=0～50mA Io=50mA VREG1≧4.75V f=100HZ,VRR=-10dBV Io=10mA 7.85V≦Vcc≦18V,Io=10mA Io=0～10mA Io=10mA VREG2≧4.75V f=100HZ,VRR=-10dBV VBU Voltage VBU Voltage Io=5μA I1=OmA VOH≧4V VOL≦0.5V 3/4 Parameter Min. Limits Typ. 0.2 0.3 - A - - 200 μA Max. Limits Condition Backup-swich VBU Peak Output Current Reverse Current VBU＞5V Up=0V，VBU=12V REG1,2,3SW Standby Level - - 1.4 V Active Level 2.2 - - V SW Input Current 13 25 37 μA 4.75 5 5.25 V 7 - - mA REG1,2,3SW=5V REG3 Output Voltage Base Current ○ BLOCK DIAGRAM VCC 19 Vo≧4.75V ○PHYSICAL DIMENSIONS・MARKING Product Series OVP 20 VBU Pre Reg BA4907FP VBU Pre Reg 7.5V Vref － ＋ BATT 3 Lot No. TSD 22 VDD BUF 4 VDD － ＋ 2.8V HSOP25 (Unit:mm) ACC 5 ○PIN NO.・PIN NAME 24 RESET ＋ ACCO 6 ー 1 C Pre Reg SW3 8 － 14 BASE ＋ Pre Reg SW2 10 VBU 13 5.0 12 3.3 － ＋ 15 REG2 Pre Reg VBU SW1 11 － ＋ 17 REG1 GND 7 ※Refer to the Technical Note about the details of the application. REV. A PIN NO. 1 2 3 4 5 6 FIN 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 PIN NAME C N.C. BATT BUF ACC ACCO FIN GND SW3 N.C. SW2 SW1 3.3 5.0 BASE REG2 N.C. REG1 N.C. VCC VBU N.C. VDD N.C. RESET N.C. 4/4 ○NOTES FOR USE 1．Over Voltage Protection Circuit The Over Voltage Protection Circuit function is that when the difference voltage of Vcc and Gnd exceeds over about 33V (room temperature), the each output turn off. Please be sure of the power supply voltage range you use. 2．Over Current Protection Circuit Each output , VDD , REG1 , REG2 and REG3 have the Over Current Protection Circuit that is enough for the each output current ability , and it protects the IC destruction against the huge current load. The protection circuit is 『fold back type』 current limiter and designed not as to occur the Latch Up by the huge current in a moment by the huge capacitor. In case of the output level is lower than 1Vbe , the output is considered as shorted mode , and the output current ability becomes smaller. So please make sure when you design the application. 3．Thermal Shut Down Circuit The Thermal Shut Down Circuit is built in IC to prevent the damage due to overheating. Therefore , all the output except VDD are turned off when it works , and turned on when the temperature goes down to the specified level. 4．Output Circuit VDD , REG1 and REG2 output constitutes PNP Power transistor. When the VCC terminal voltage drop lower , the IC has a counter measure not to be destroyed if the output voltage is lower than Vcc caused by the output capacitor. 5．The oscillation stopper of output capacitor Please use the oscillation stopper between the VDD , REG1 , REG2 , REG3 and VBU each output and Gnd. The capacitor is over 2.2μF and recommended the small temperature change one. In case of the capacitor temperature change is big , it may get characteristic improvement to use the serial 1μF ceramic capacitor and 1Ω resistor in pararell. ・Recommendation Vo For ESR revision dissociation capacitor １Ω ceramic capacitor + 2.2 μ １μＦ in low temperature For keep capacity in low temperature For keep capacity in high temperature. 6．The calcuration expression of the BATT and ACC detection. BATT and ACC detection voltage is controlled under the below expression. ○ Ｌ→Ｈ detection voltage Ｖｔｈ＝１．２３×（１＋ Ｒ１ Ｒ2 ） reference voltage （accuracy±５％） ＊In consideration of temperature Ｖｔｈ（Ｖｈｙ） Ｒ１ ○ Ｈ→Ｌ hysteresis width Ｖｈｙ＝０．０７２×（１＋ Ｒ１ Ｒ2 BATT ACC Ｒ2 ） reference voltage （accuracy±５０％） ＊In consideration of temperature 7．We recommend using Diode for protection purpose in case of output pin connected with large loads of impedance or reverse current at initial stages or output off stage. （Example） OUTPUT PIN OUTPUT PIN 8．In the application , in case of the each terminal is lower than Gnd , it recommend to use the bypass circuit. REV. A Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). 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