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| Li-lon BATTERY PROTECTOR RN5VM1xxC/D SERIES APPLICATION MANUAL ELECTRONIC DEVICES DIVISION NO. EA-041-9803 NOTICE 1. The products and the product specifications described in this application manual are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon. 2. This application manual may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh. 3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise taking out of your country the products or the technical information described herein. 4. The technical information described in this application manual shows typical characteristics of and example application circuits for the products. The release of such information is not to be construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual property rights or any other rights. 5. The products listed in this document are intended and designed for use as general electronic components in standard applications (office equipment, computer equipment, measuring instruments, consumer electronic products, amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us. 6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor products are likely to fail with certain probability. In order prevent any injury to persons or damages to property resulting from such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy feature, fire-containment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or damage arising from misuse or inappropriate use of the products. 7. Anti-radiation design is not implemented in the products described in this application manual. 8. Please contact Ricoh sales representatives should you have any questions or comments concerning the products or the technical information. June 1995 RN5VM1x xC/D Series APPLICATION MANUAL CONTENTS OUTLINE ......................................................................................................1 FEATURES ...................................................................................................1 APPLICATIONS .............................................................................................2 BLOCK DIAGRAMS .......................................................................................2 SELECTION GUIDE .......................................................................................2 PIN CONFIGURATION ...................................................................................3 PIN DESCRIPTION ........................................................................................3 ABSOLUTE MAXIMUM RATINGS ...................................................................4 ELECTRICAL CHARACTERISTIC ..................................................................5 TIMING DIAGRAM .........................................................................................9 OPERATION ................................................................................................11 TEST CIRCUIT ............................................................................................13 TYPICAL CHARACTERISTICS .....................................................................15 1) Over-charge Threshold VDET1 (V).....................................................................15 2) Over-discharge threshold VDET2 (V) ..................................................................15 3) Excess current threshold VDET3 (V)...................................................................15 4) Short circuit protector Threshold Vshort (V) .........................................................15 5) Output Delay of Over-charge tVDET1 (ms) ............................................................15 6) Output Delay of Over-discharge tVDET2 (ms) ........................................................15 7) Output Delay of Excess current tVDET3 (ms) .........................................................16 8) Output Delay of Short circuit Protector tshort (s) ..................................................16 9) Over-charge Threshold Hysteresis VHYS1 (mV) .....................................................16 10) Supply Current IDD (A) ................................................................................16 11) Standby Current Istandby (A) ........................................................................16 12) COUT Nch Driver ON Voltage VOL1 (V) ...............................................................17 13) COUT Pch Driver ON Voltage VOH1 (V) ...............................................................17 ...............................................................17 15) DOUT Pch Driver ON Voltage VOH2 (V) ...............................................................17 16) Output Delay of Over-charge tVDET1 (ms) ............................................................18 17) Output Delay of Short protection tshort (s) .........................................................18 18) Output Delay of Excess Current tVDET3 (ms) ........................................................18 19) Excess Current Threshold VDET3 (V) .................................................................18 20) Over-charge Threshold VDET1 (V).....................................................................18 TYPICAL APPLICATION ..............................................................................19 APPLICATION HINTS...................................................................................19 PACKAGE DIMENSION ................................................................................20 TAPING SPECIFICATION .............................................................................20 14) DOUT Nch Driver ON Voltage VOL2 (V) Li-lon BATTERY PROTECTOR RN5VM1xxC/D SERIES OUTLINE The RN5VM Series are protection ICs for over-charge/discharge of rechargeable one-cell Lithium-ion (Li+) batteries by CMOS process. The RN5VM Series can detect over-charge/discharge of Li+ one-cell and excess load current, further include a short circuit protector for preventing large external short circuit current. Each of these ICs is composed of three voltage detectors, a reference unit, a hysteresis circuit, and a short circuit protector. When charging voltage crosses the detector threshold from a low value to a value higher than VDET1, the output of COUT pin, the output of over-charge detector/VD1, switches to low level, ..charger's negative pin level. After detecting overcharge the VD1 can be reset and the output of COUT pin becomes "H" when the VDD voltage is coming down to a level lower than "VDET1 - VHYS1", or when a charger is disconnected from the battery pack while the VDD level is in between "VDET1" and "VDET1 - VHYS1" in the RN5VM1xxC version. While in the RN5VM1xxD version after detecting over-charge, any load current can not be drawn from the battery pack when the VDD voltage stays over "VDET1 - VHYS1", excepting that the VD1 can be reset and it allows to draw load current when the VDD voltage is coming down to a level lower than "VDET1 - VHYS1" because of a cell internal discharging. The output of DOUT pin, the output of over-discharge detector/VD2, switches to "L" after internally fixed delay time passed, when discharging voltage crosses the detector threshold from a high value to a value lower than VDET2. An excess load current can be sensed and cut off after internally fixed delay time passed through the built in excess current detector, VD3, with DOUT being enabled to low level. Once after detecting excess current, the VD3 is released and DOUT level switches to "H" by detaching a battery pack from a load system. Further, short circuit protector makes DOUT level to "L" immediately with external short circuit current and removing external short circuit leads DOUT level to "H". After detecting over-discharge, supply current will be kept extremely "L" by halting some internal circuits operation. The output delay of over-charge detectors can be set by connecting external capacitors. Output type of COUT and DOUT are CMOS. SOT23-6 is available. FEATURES * Low supply current ................................Supply current * High withstand voltage..........................Absolute maximum ratings 28V (VDD-V-) * High accuracy detector threshold .......Over-charge detector Over-discharge detector ................Over-charge detector threshold * Variety of detector threshold Over-discharge detector threshold * Built-in protection circuit.......................Excess current trip/Short circuit protector * Output delay of over-charge .................Time delay at C3= 0.01F and VDD=4.3V * Ultra small package ...............................SOT-23-6 TYP. 3.0A Standby current (after detecting over-discharge) TYP. 0.3A 50mV 2.5% 4.0V to 4.4V/step of 0.01V 2.0V to 3.0V/step of 0.05V 75ms for RN5VM111x 1 RN5VM1x xC/D APPLICATIONS * Over-charge/over-discharge protection for Li+ one-cell pack * High precision protectors for cell-phones and any other gadgets using on board Li+ one-cell battery BLOCK DIAGRAM 5 VDD 2 Ct - + VD1 Level Shift - + VD2 + VD3 - Delay Short Circuit Detector 3 VSS DOUT 4 COUT 1 V- 6 SELECTION GUIDE In the RN5VM1xxx Series three of the input threshold for over-charge, over-discharge and excess current and taping type can be designating at the user's request by Part Number as follows: RN5VM1x xx-xx Part Number } } c ab Code Description a Serial Number for the RN5VM Series designating input threshold for over-charge, over-discharge and excess current detectors as well as hysteresis range for over-charge detector. Designation of version symbols b C : drawing load current is allowable after detecting over-charge. D : drawing load current is not allowable after detecting over-charge. c Designation of Taping Type: TR (refer to Taping Specification) 2 RN5VM1x x C/D PIN CONFIGURATION *SOT-23-6 6 5 4 (mark side) 1 2 3 PIN DESCRIPTION Pin No. Symbol Pin description 1 2 3 4 5 6 COUT Ct VSS DOUT VDD V- Output of over-charge detection, CMOS output Pin for external capacitor setting output delay of VD1 Ground Output of over-discharge detection, CMOS output Power supply Pin for charger negative input 3 RN5VM1x xC/D ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Vss=0V Unit VDD V- Supply Voltage V- pin Input Voltage Ct pin COUT pin Output Voltage DOUT pin Power Dissipation Operating Temperature Range Storage Temperature Range -0.3 to 12 VDD-28 to VDD+0.3 Vss-0.3 to VDD+0.3 VDD-28 to VDD+0.3 Vss-0.3 to VDD+0.3 150 -40 to +85 -55 to +125 V V V V V mW C C Vct VCOUT VDOUT PD Topt Tstg ABSOLUTE MAXIMUM RATINGS Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress ratings only and do not necessarily imply functional operation below these limits. 4 RN5VM1x x C/D ELECTRICAL CHARACTERISTIC * RN5VM111C Symbol Item Conditions MIN. TYP. MAX. Topt=25C Unit VDD1 Vst VDET1 VHYS1 Operating input voltage Minimum operating voltage for 0V charging Over-charge threshold voltage Over-charge threshold hysteresis range Output delay time of over-charge Over-discharge threshold voltage Output delay time of over-discharge Excess current threshold voltage Output delay time of excess current Short detection voltage Output delay time of short detection Reset resistance for excess current protection Nch ON voltage of COUT Pch ON voltage of COUT Nch ON voltage of DOUT Pch ON voltage of DOUT Supply current Standby current Voltage defined as VDD-VSS Voltage defined as VDD-V-, VDD-Vss=0V Detect rising edge of supply voltage 1.5 10 1.2 V V V V ms V ms V ms V s k V V 4.20 0.15 4.25 0.2 75 2.50 10 0.20 13 4.30 0.25 100 2.563 13 0.23 17 tVDET1 VDET2 C3=0.01F, VDD=3.6V 4.3V Detect falling edge of supply voltage VDD=3.6V 2.4V Detect rising edge of "V-" pin voltage VDD=3.0V VDD=3.0V VDD=3.0V VDD=3.6V, V-=1.0V IOL=50A, VDD=4.4V IOH=-50A, VDD=3.9V IOL=50A, VDD=2.4V IOH=-50A, VDD=3.9V VDD=3.9V, V-=0V VDD=2.0V 50 2.437 7 0.17 9 tVDET2 VDET3 tVDET3 Vshort VDD-1.1 VDD-0.8 VDD-0.5 5 50 100 0.2 3.4 3.8 0.2 3.4 3.7 3.0 0.3 6.0 0.6 0.5 50 150 0.5 tshort Rshort VOL1 VOH1 VOL2 VOH2 IDD Istandby V V A A *) Please refer to Test Circuit unless otherwise specified. 5 RN5VM1x xC/D * RN5VM112C Symbol Item Conditions MIN. TYP. MAX. Topt=25C Unit VDD1 Vst VDET1 VHYS1 Operating input voltage Minimum operating voltage for 0V charging Over-charge threshold voltage Over-charge threshold hysteresis range Output delay time of over-charge Over-discharge threshold voltage Output delay time of over-discharge Excess current threshold voltage Output delay time of excess current Short detection voltage Output delay time of short detection Reset resistance for excess current protection Nch ON voltage of COUT Pch ON voltage of COUT Nch ON voltage of DOUT Pch ON voltage of DOUT Supply current Standby current Voltage defined as VDD-VSS Voltage defined as VDD-V-, VDD-Vss=0V Detect rising edge of supply voltage 1.5 10 1.2 V V V V ms V ms V ms V s k V V 4.30 0.15 4.35 0.20 80 2.500 10 0.20 13 4.40 0.25 105 2.563 13 0.23 17 tVDET1 VDET2 C3=0.01F, VDD=3.6V 4.4V Detect falling edge of supply voltage VDD=3.6V 2.4V Detect rising edge of "V-" pin voltage VDD=3.0V VDD=3.0V VDD=3.0V VDD=3.6V, V-=1.0V IOL=50A, VDD=4.4V IOH=-50A, VDD=3.9V IOL=50A, VDD=2.4V IOH=-50A, VDD=3.9V VDD=3.9V, V-=0V VDD=2.0V 55 2.437 7 0.17 9 tVDET2 VDET3 tVDET3 Vshort VDD-1.1 VDD-0.8 VDD-0.5 5 50 100 0.2 3.4 3.8 0.2 3.4 3.7 3.0 0.3 6.0 0.6 0.5 50 150 0.5 tshort Rshort VOL1 VOH1 VOL2 VOH2 IDD Istandby V V A A *) Please refer to Test Circuit unless otherwise specified. 6 RN5VM1x x C/D * RN5VM111D Symbol Item Conditions MIN. TYP. MAX. Topt=25C Unit VDD1 Vst VDET1 VHYS1 Operating input voltage Minimum operating voltage for 0V charging Over-charge threshold voltage Over-charge threshold hysteresis range Output delay time of over-charge Over-discharge threshold voltage Output delay time of over-discharge Excess current threshold voltage Output delay time of excess current Short detection voltage Output delay time of short detection Reset resistance for excess current protection Nch ON voltage of COUT Pch ON voltage of COUT Nch ON voltage of DOUT Pch ON voltage of DOUT Supply current Standby current Voltage defined as VDD-VSS Voltage defined as VDD-V-, VDD-Vss=0V Detect rising edge of supply voltage 1.5 10 1.2 V V V V ms V ms V ms V s k V V 4.20 0.15 4.25 0.20 75 2.500 10 0.20 13 4.30 0.25 100 2.563 13 0.23 17 tVDET1 VDET2 C3=0.01F, VDD=3.6V 4.3V Detect falling edge of supply voltage VDD=3.6V 2.4V Detect rising edge of "V-" pin voltage VDD=3.0V VDD=3.0V VDD=3.0V VDD=3.6V, V-=1.0V IOL=50A, VDD=4.4V IOH=-50A, VDD=3.9V IOL=50A, VDD=2.4V IOH=-50A, VDD=3.9V VDD=3.9V, V-=0V VDD=2.0V 50 2.437 7 0.17 9 tVDET2 VDET3 tVDET3 Vshort VDD-1.1 VDD-0.8 VDD-0.5 5 50 100 0.2 3.4 3.8 0.2 3.4 3.7 3.0 0.3 6.0 0.6 0.5 50 150 0.5 tshort Rshort VOL1 VOH1 VOL2 VOH2 IDD Istandby V V A A *) Please refer to Test Circuit unless otherwise specified. 7 RN5VM1x xC/D * RN5VM112D Symbol Item Conditions MIN. TYP. MAX. Topt=25C Unit VDD1 Vst VDET1 VHYS1 Operating input voltage Minimum operating voltage for 0V charging Over-charge threshold voltage Over-charge threshold hysteresis range Output delay time of over-charge Over-discharge threshold voltage Output delay time of over-discharge Excess current threshold voltage Output delay time of excess current Short detection voltage Output delay time of short detection Reset resistance for excess current protection Nch ON voltage of COUT Pch ON voltage of COUT Nch ON voltage of DOUT Pch ON voltage of DOUT Supply current Standby current Voltage defined as VDD-VSS Voltage defined as VDD-V-, VDD-Vss=0V Detect rising edge of supply voltage 1.5 10 1.2 V V V V ms V ms V ms V s k V V 4.30 0.15 4.35 0.20 80 2.500 10 0.20 13 4.40 0.25 105 2.563 13 0.23 17 tVDET1 VDET2 C3=0.01F, VDD=3.6V 4.4V Detect falling edge of supply voltage VDD=3.6V 2.4V Detect rising edge of "V-" pin voltage VDD=3.0V VDD=3.0V VDD=3.0V VDD=3.6V, V-=1.0V IOL=50A, VDD=4.4V IOH=-50A, VDD=3.9V IOL=50A, VDD=2.4V IOH=-50A, VDD=3.9V VDD=3.9V, V-=0V VDD=2.0V 55 2.437 7 0.17 9 tVDET2 VDET3 tVDET3 Vshort VDD-1.1 VDD-0.8 VDD-0.5 5 50 100 0.2 3.4 3.8 0.2 3.4 3.7 3.0 0.3 6.0 0.6 0.5 50 150 0.5 tshort Rshort VOL1 VOH1 VOL2 VOH2 IDD Istandby V V A A *) Please refer to Test Circuit unless otherwise specified. 8 RN5VM1x x C/D TIMING DIAGRAM * RN5VM1xxC Open Charging Discharging Charging Discharging Charging Discharging Charging current Excess Open Short circuit VDET1 VDET1-VHYS1 VDD VDET2 t VDD Vshort V- VDET3 VSS tVDET1 VDD tVDET1 t COUT V- tVDET2 VDD tVDET2 tVDET3 tshort t DOUT VSS t Charging Current Charging/ Discharging Current 0 t Discharging Current 9 RN5VM1x xC/D * RN5VM1xxD Open Charging Discharging Self discharging Discharging Charging Discharging Open Excess Charging current Open Short circuit VDET1 VDET1-VHYS1 VDD VDET2 t VDD Vshort VVDET3 VSS tVDET1 VDD t COUT V- tVDET3 VDD tVDET2 tVDET2 tVDET3 tshort t DOUT VSS t Charging Current Charging/ Discharging Current 0 t Discharging Current 10 RN5VM1x x C/D OPERATION * VD1/Over-Charge Detector * The VD1 monitors VDD pin voltage. When the VDD voltage crosses over-charge detector threshold VDET1 from a low value to a value higher than the VDET1, the VD1 can sense over-charging and an external charge control Nch-MOS-FET turns to "OFF" with COUT pin being at "L". * An output delay time for over-charge detection can be set by an external capacitor C3 connecting the Vss pin and Ct pin. The external capacitor can make a delay time from a moment detecting over-charge to a time output a signal which enables charge control Nch-MOS-FET for turning to "OFF". Though the VDD voltage would be going up to a higher level than VDET1 if it is within a time period of the output delay time, VD1 would not output a signal for turning "OFF" of charg control Nch-MOS-FET. The output delay time can be calculated as below: C3 x (VDD- 0.7) tVDET1 = 0.48 x 10-6 * A level shifter incorporated in a buffer driver for the COUT pin makes the "L" of COUT pin to the V- pin voltage and the "H" of COUT pin is set to VDD voltage with CMOS buffer. Reset conditions from overcharging of RN5VM1xxC * There can be two cases to reset the VD1 making the COUT pin level to "H" again after detecting over-charge. Resetting the VD1 makes the charging system ready for resumption of charging process. The first case is in such condition that a time when the VDD voltage is coming down to a level lower than "VDET1-VHYS1". While in the second case, disconnecting a charger from the battery pack can make the VD1 resetting when the VDD level is within hysteresis width (VDET1-VHYS1VDD 11 RN5VM1x xC/D * VD2/Over-Discharge Detector * The VD2 monitors a VDD pin voltage. When the VDD voltage crosses the over-discharge detector threshold VDET2 from a high value to a value lower than the VDET2, the VD2 can sense an over-discharging and the external discharge control Nch-MOS-FET turns to "OFF" with the DOUT pin being at "L". * Resetting the VD2 with the DOUT pin level being "H" again after detecting over-discharge is only possible by connecting a charger to the battery pack. When the VDD voltage stays under over-discharge detector threshold VDET2 charge current can flow through parasitic diode of external discharge control Nch-MOS-FET, then after the VDD voltage comes up to a value larger than VDET2 discharging process would be advanced through "ON" state discharge control Nch-MOS-FET. Connecting a charger to the battery pack makes the DOUT level being "H" instantaneously when the VDD voltage is higher than VDET2. * When a cell voltage equals to zero, connecting charger to the battery pack makes the system allowable for charge with higher charge voltage than Vst, 1.2V Max. * An output delay time for the over-discharge detection is fixed internally. Though the VDD voltage would be going down to a lower level than VDET2 if it is within a time period of the output delay time, VD2 would not output a signal for turning "OFF" of discharge control Nch-MOS-FET. * After detection of an over-discharge by VD2, supply current would be reduced to 0.3A TYP. at VDD=2.0V and into standby, only the charger detector is operating. * The output type of DOUT pin is CMOS having "H" level of VDD and "L" level of Vss. * VD3/Excess Current Detector, Short Circuit Protector * Both of the excess current detector and short circuit protector can work when both control Nch-MOS-FETs are in "ON" state. When the V- pin voltage is going up to a value between the short protection voltage Vshort and excess current threshold VDET3, the excess current detector operates and further soaring of V- pin voltage higher than Vshort makes the short circuit protector enabled. As a result the external discharge control Nch-MOS-FET turns to "OFF" with the DOUT pin being at "L". * An output delay time for the excess current detector is internally fixed, 13ms TYP. at VDD=3.0V. A quick recovery of Vpin level from a value between Vshort and VDET3 within the delay time keeps the discharge control FET staying "ON"state. When the short circuit protector is enabled, the DOUT would be "L" and its delay time would be 5s TYP. * The V- pin has a built-in pull down resistor, TYP.100k, connected to the Vss pin. After an excess current or short circuit protection is detected, removing a cause of excess current or external short circuit makes an external discharge control Nch-MOS-FET to an "ON" state automatically with the V- pin level being down to the Vss level through the built-in pull down resistor. * When VDD voltage is higher than VDET2 at a time when the excess current is detected the 5VM does not enter a standby mode, while VDD voltage is lower than VDET2 the 5VM enters a standby mode. After detecting short circuit the 5VM will not enter a standby mode. 12 RN5VM1x x C/D TEST CIRCUIT 5 VDD Ct 2 0.01F V 5 VDD 6 VCOUT 1 V 6 V- DOUT 4 3 VSS 3 VSS Test Circuit 1 Test Circuit 2 5 VDD 5 VDD 50A 6 VV A DOUT 4 6 V- COUT 1 V 3 VSS 3 VSS Test Circuit 3 Test Circuit 4 50A 5 VDD 50A 5 VDD DOUT 4 V 6 V- DOUT 1 V 6 V- 3 VSS 3 VSS Test Circuit 5 Test Circuit 6 13 RN5VM1x xC/D 50A 5 VDD DOUT 4 5 VDD V 6 V- A 6 V- 3 VSS 3 VSS Test Circuit 7 Test Circuit 8 R1 5 VDD C1 Ct 2 C3 R2 5 VDD V 6 VCOUT 1 6 V- V C2 DOUT 4 3 VSS 3 VSS Test Circuit 9 Test Circuit 10 The typical characteristics were obtained by use of these test circuits Test Circuit 1 : Typical characteristics 1) 5) 9) 16) Test Circuit 2 : Typical characteristics 2) 6) Test Circuit 3 : Typical characteristics 3) 4) 7) 8) 18) Test Circuit 4 : Typical characteristics 12) Test Circuit 5 : Typical characteristics 13) Test Circuit 6 : Typical characteristics 14) Test Circuit 7 : Typical characteristics 15) Test Circuit 8 : Typical characteristics 10) 11) Test Circuit 9 : Typical characteristics 20) Test Circuit 10 : Typical characteristics 17) 19) 14 RN5VM1x x C/D TYPICAL CHARACTERISTICS 1) Over-charge threshold vs. Temperature RN5VM111x Over-charge Threshold VDET1(V) 4.27 4.26 4.25 4.24 4.23 4.22 4.21 4.20 -60 -40 -20 0 20 40 60 80 100 2) Over-discharge vs. Temperature RN5VM111x/112x Over-discharge Threshold VDET2(V) 2.54 2.53 2.52 2.51 2.50 2.49 2.48 2.47 -60 -40 -20 0 20 40 60 80 100 Temperature Topt (C) Temperature Topt (C) 3) Excess Current Threshold vs. Temperature 4) Short circuit protector Threshold vs. Temperature RN5VM111x/112x Excess Current Threshold VDET3(V) 0.210 RN5VM1xxx Short circuit protector Threshold Vshort(V) 2.40 2.35 2.30 2.25 2.20 2.15 2.10 -60 -40 -20 VDD=3.0V 0.205 0.200 0.195 0.190 -60 -40 -20 0 20 40 60 80 100 0 20 40 60 80 100 Temperature Topt (C) Temperature Topt (C) 5) Output Delay of Over-charge vs. Temperature 6) Output Delay of Over-discharge vs. Temperature RN5VM111x 100 C3=0.01F, VDD=3.6V4.3V 18 90 80 RN5VM111x/112x VDD=3.6V2.4V Output Delay of Over-discharge 0 20 40 60 80 100 Output Delay of Over-charge 16 14 tVDET1(ms) 70 60 50 40 30 20 -60 -40 -20 tVDET2(ms) 12 10 8 6 4 2 -60 -40 -20 0 20 40 60 80 100 Temperature Topt (C) Temperature Topt (C) 15 RN5VM1x xC/D 7) Output Delay of Excess current vs. Temperature 8) Output Delay of Short circuit protector vs. Temperature RN5VM1xxx 20 VDD=3.0V 10 RN5VM1xxx VDD=3.0V Output Delay of Excess current Output Delay of Short circuit protector tshort(s) 18 16 14 8 6 4 2 0 -60 -40 -20 tVDET3(ms) 12 10 8 6 4 2 0 -60 -40 -20 0 20 40 60 80 100 0 20 40 60 80 100 Temperature Topt (C) Temperature Topt (C) 9) Over-charge Threshold Hysteresis vs.Temperature 10) Supply Current vs. Temperature RN5VM111x/112x Over -charge Treshold Hysteresis VHYS1(mV) 0.210 4.0 3.5 0.205 RN5VM1xxx VDD=3.9V, V-=0V Supply Current IDD(A) 0 20 40 60 80 100 3.0 2.5 2.0 1.5 1.0 0.5 0.200 0.195 0.190 -60 -40 -20 0.0 -60 -40 -20 0 20 40 60 80 100 Temperature Topt (C) Temperature Topt (C) 11) Standby Current vs. Temperature RN5VM1xxx 0.40 VDD=2.0V Standby Current Istandby(A) 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 -60 -40 -20 0 20 40 60 80 100 Temperature Topt (C) 16 RN5VM1x x C/D 12) Cout Nch Driver On Voltage vs. Temperature 13) COUT Pch Driver ON Voltage vs. Temperature RN5VM1xxx COUT Pch Driver ON Voltage VOH1(V) COUT Nch Driver ON Voltage VOL1(V) 0.30 0.25 0.20 0.15 0.10 0.05 0.00 -60 -40 -20 IOL=50A,VDD=4.4V 3.90 3.85 3.80 3.75 3.70 3.65 3.60 -60 -40 -20 RN5VM1xxx IOH=-50A,VDD=3.9V 0 20 40 60 80 100 0 20 40 60 80 100 Temperature Topt (C) Temperature Topt (C) 14) DOUT Nch Driver ON Voltage vs. Temperature 15) DOUT Pch Driver ON Voltage vs. Temperature RN5VM1xxx DOUT Nch Driver ON Voltage VOL2(V) DOUT Pch Driver ON Voltage VOH2(V) 0.30 0.25 0.20 0.15 0.10 0.05 0.00 -60 -40 -20 IOL=50A,VDD=2.4V 3.90 3.85 3.80 3.75 3.70 3.65 3.60 -60 -40 -20 RN5VM1xxx IOH=-50A,VDD=3.9V 0 20 40 60 80 100 0 20 40 60 80 100 Temperature Topt (C) Temperature Topt (C) 17 RN5VM1x xC/D 16) Output Delay of Over-charge vs. Capacitance C3 17) Output Delay of Short protection vs. Capacitance C2 RN5VM111x 700 600 500 400 300 200 100 0 0 0.05 0.1 RN5VM1xxx Output Delay of short protection tshort(s) 10000 1000 R2=1k,VDD=3.0V Output Delay of Over-charge tVDET1(ms) 800 VDD=3.6V4.3V 100 10 1 0.001 0.01 0.1 1 External Capacitance C3(F) External Capacitance C2(F) 18) Output Delay of Excess Current vs. VDD 19) Excess Current Threshold vs. External resistance R2 RN5VM1xxx Output Delay of Excess Current tVDET3(ms) Excess Current Threshold tDET3(ms) 25.00 20.00 15.00 10.00 5.00 0.00 2.5 0.210 0.209 0.208 0.207 0.206 0.205 0.204 0.203 0.202 0 0.5 RN5VM111x/112x VDD=3.0V 3.0 3.5 4.0 4.5 1 1.5 2 2.5 3 Supply Voltage VDD(V) External Resistance R2(k) 20) Over-charge Threshold vs. External Resistance R1 RN5VM111x Over-charge Threshold VDET1(V) 4.258 4.256 4.254 4.252 4.250 4.248 4.246 0 200 400 600 800 1000 C3=0.01F C1=0 to 0.68F C3=0.22F C3=0.1F External Resistance R1() 18 RN5VM1x x C/D TYPICAL APPLICATION + R1 100 C1 0.1F 5 VDD C3 2 Ct RN5VM1xxx DOUT V- 6 0.01F 3 Vss COUT 4 C2 0.1F 1 R2 1k - NOTE ON EXTERNAL COMPONENTS *R1 and C1 will stabilize a supply voltage to the RN5VM. A recommended R1 value is less than 1k. A larger value of R1 leads higher detection voltage, makes some errors, because of shoot through current flowed in the RN5VM. *R2 and C2 will stabilize a V- pin voltage. The resetting from over-discharge with connecting charger possibly be disabled by larger value of R2. Recommended value is less than 1k. After an over-charge detection, a system may not draw load current when a battery pack is connected to it in the C version with R2 and C2 time constants at relatively larger settings. Recommended C2 value is less than 1F. *R1 and R2 can operate as a current limiter against setting cell reverse direction or for applying excess charging voltage to the 5VM. While smaller R1 and R2 may cause an over power dissipation rating of the RN5VM and a total of "R1+R2" should be more than 1k. *The time constants R1xC1 or R2xC2 must have a relations as below: R1x C1R2xC2 Because in case that R1xC1, time constant for VDD pin, would be larger than R2xC2, time constant for V- pin, then the RN5VM might be into a standby mode after detecting excess current or short circuit current. 19 RN5VM1x xC/D PACKAGE DIMENSION (Unit : mm) * SOT-23-6 2.90.2 1.90.2 (0.95) (0.95) +0.2 1.1 -0.1 0.2 MIN. 0 to 0.1 8.00.3 0.80.1 4 2.80.3 6 5 1 2 0.4 +0.1 -0.2 3 +0.1 0.15 -0.05 TAPING SPECIFICATION (Unit : mm) * SOT-23-6 o 1.5+0.1 -0 4.00.1 2.00.05 1.750.1 3.2 3.3 4.00.1 2.0MAX. 0.30.1 +0.2 1.6 -0.1 TR User Direction of Feed 20 3.50.05 RICOH COMPANY, LTD. ELECTRONIC DEVICES DIVISION HEADQUARTERS 13-1, Himemuro-cho, Ikeda City, Osaka 563-8501, JAPAN Phone 81-727-53-1111 Fax 81-727-53-6011 YOKOHAMA OFFICE (International Sales) 3-2-3, Shin-Yokohama, Kohoku-ku, Yokohama City, Kanagawa 222-8530, JAPAN Phone 81-45-477-1697 Fax 81-45-477-1694 * 1695 http://www.ricoh.co.jp/LSI/english/ RICOH CORPORATION ELECTRONIC DEVICES DIVISION SAN JOSE OFFICE 3001 Orchard Parkway, San Jose, CA 95134-2088, U.S.A. Phone 1-408-432-8800 Fax 1-408-432-8375 |
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