R5460N5XXXX NISSHINBO | Alldatasheet

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Two-cell Li-ion Battery Protection IC NO.EA-650-231025 The R5460N5xxXX is a two-cell Li- ion / polymer battery protection IC providing overcharge, overdischarge and charge / discharge overcurrent detections , further include a protection circuit for preventing large external short circuit current.

  • Low Consumption Current and High-accuracy Overcurrent Detector: Achieving Longer Driving Time with Batteries of Small Capacity
  • 0 V Battery Charging selectable: Permission / Inhibition
  • Supply Current Normal Mode: Typ.4.0µA / Max.8.0µA (0 V battery charging: Permission) Typ.4.5µA / Max.9.0µA (0 V battery charging: Inhibition) Standby Mode: Max.0.1µA (Overdischarge release: Latch type) Typ.2.0µA / Max.3.5µA (Overdischarge release: Auto Release type)
  • Detector Selectable Range and Accuracy Overcharge detection voltage (VDET1x): 4.1 V to 4.5 V, ±20 mV Overdischarge detection voltage (VDET2x): Discharge overcurrent detection voltage (VDET3): 0.05 V to 0.2 V, ±12 mV Charge overcurrent detection voltage (VDET4): −0.4 V to −0.1 V, ±22 mV Short-circuit detection voltage (VSHORT): 0.3 V to 0.5 V, ±0.1 V
  • 0 V Battery Charging selectable: Permission / Inhibition 0 V charge inhibition voltage: 0.75 V, ±0.35 V
  • Overcharge Release Type: Auto Release
  • Overdischarge Release Type selectable: Auto Release / Latch
  • Discharge / Charge overcurrent detection: Auto Release VD COUT DOUT VSS 1kΩ R5460N5xxXX RVDD 330Ω CVDD RV- VC RVC 330Ω CVC 0.1μF 0.1μF SOT-23-6 2.9 x 2.8 x 1.1 [mm]
  • Smart Phone, Tablet PC
  • Cleaner OVERVIEW KEY BENEFITS KEY SPECIFICATIONS TYPICAL APPLICATION CIRCUIT PACKAGE

APPLICATIONS

NO.EA-650-231025 SELECTION GUIDE Set Voltages, Delay Times, and Optional Functions are user-selectable. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free R5460N5xx$-TR-FF SOT-23-6 3,000 pcs Yes Yes xx: Specify a code that combines the following set voltages. Refer to Product Code List for details. Overcharge Detection Voltage (VDET1x): 4.1 V to 4.5 V in 0.005 V step Overdischarge Detection Voltage (VDET2x): 2.0 V to 3.0 V in 0.005 V step Discharge Overcurrent Detection Voltage (VDET3): 0.05 V to 0.20 V in 0.005 V step Charge Overcurrent Detection Voltage (VDET4): −0.4 V to −0.1 V in 0.005 V step Short-circuit Detection Voltage (VSHORT): 0.3 V to 0.5 V in 0.05 V step $: Specify a code that combines the following delay times. Refer to Delay Time Code Table for details. Overcharge Detection / Release Delay Time (tVDET1 / tVREL1) Overdischarge Detection / Release Delay Time (tVDET2 / tVREL2) Discharge Overcurrent Detection / Release Delay Time (tVDET3 / tVREL3) Charge Overcurrent Detection / Release Delay Time (tVDET4 / tVREL4) Short-Circuit Detection Delay Time (tSHORT) Delay Time Table (Code Option) Code tVDET1 [s] tVREL1 [ms] tVDET2 [ms] tVREL2 [ms] tVDET3 [ms] tVREL3 [ms] tVDET4 [ms] tVREL4 [ms] tSHORT [µs] A 1 16 128 1.2 12 1.2 8 1.2 300 *: Specify a code that combines the following functions. Refer to Function Code Table for details. Function Code Table Code Overcharge Release Overdischarge Release 0 V Battery Charging Type Hysteresis F Auto Release Latch Available Permission G Auto Release Latch Available Inhibition J Auto Release Auto Release Available Inhibition

NO.EA-650-231025 Product Code List The product code is determined by a combination of the three digits set voltage code (1), the delay time code, and the function code. The set voltage code is as following table. For more information on the delay and the selectable function codes, see the Selection Guide chapter. Product Code Table Product Code Set Voltage [V] VDET1 VREL1 VDET2 VREL2 VDET3 VDET4 VSHORT (1) Indicated with the numbers in bold type.

NO.EA-650-231025 BLOCK DIAGRAM R5460N5xxXX Block Diagram PIN DESCRIPTION 6 4 1 2 3 mark side R5460N (SOT-23-6) Pin Configuration R5460N Pin Description Pin No Symbol Pin Description

1 DOUT Output pin of overdischarge detection, CMOS output

2 COUT Output pin of overcharge detection, CMOS output

3 V- Charger negative input pin

4 VC Input pin of the center voltage between two-cell

5 VDD Power supply pin, substrate level of the IC

6 VSS VSS pin (GND pin of the IC)

NO.EA-650-231025 ABSOLUTE MAXIMUM RATINGS (Ta = 25°C, VSS = 0V) Symbol Item Rating Unit VDD Supply voltage −0.3 to 12 V VC VC pin input voltage VSS − 0.3 to VDD + 0.3 V V- V- pin input voltage VDD − 30 to VDD + 0.3 V VCOUT COUT pin output voltage VDD − 30 to VDD + 0.3 V VDOUT DOUT pin output voltage VSS − 0.3 to VDD + 0.3 V PD Power Dissipation 150 mV Tj Junction Temperature Range −40 to 125 C Tstg Storage Temperature Range −55 to 125 C ABSOLUTE MAXIMUM RATINGS Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause permanent damage and may degrade the lifetime and safety for both device and system using the device in the field. The functional operations at or over these absolute maximum ratings are not assured. RECOMMENDED OPERATING CONDITION Symbol Item Rating Unit VDD Operating Input Voltage 1.5 to 10 V Ta Operating Temperature Range −40 to 85 °C RECOMMENDED OPERATING CONDITIONS All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if they are used ov er such conditions by momentary electronic noise or surge. And the semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions.

NO.EA-650-231025

ELECTRICAL CHARACTERISTICS

R5460N5xxXX Electrical Characteristics (Ta = 25C) Symbol Parameter Conditions Min. Typ. Max. Unit Circuit(1) VDD1 Operating input voltage VDD − VSS 1.5 10 V A VSTCHG Minimum charging voltage for 0V battery charger (2) VDD − VSS = 0V，defined as VDD − V- difference voltage 1.8 V A VNOCHG 0 V battery charging inhibition voltage (3) VDD − VC or VC − VSS, VDD − V- = 4 .0V，defined as VDD − V- difference voltage 0.40 0.75 1.10 V B,C VDET1U Overcharge detection voltage, upper / lower RVDD = RVC = 330Ω VDET1 − 0.020 VDET1 VDET1 + 0.020 V B,C VDET1L VREL1U Overcharge release voltage, upper / lower RVDD = RVC = 330Ω VREL1 − 0.035 VREL1 VREL1 + 0.035 V B,C VREL1L tVDET1 Overcharge detection delay time VDD − VC = 3.6V → 4.5V, VC − VSS = 3.6V 0.7 1.0 1.3 s B tVREL1 Overcharge release delay time VDD − VC = 4.5V → 3.6V, VC − VSS = 3.6V 11 16 21 ms B VDET2U Overdischarge detection voltage, upper / lower Detect falling edge of supply voltage VDET2 × 0.98 VDET2 VDET2 × 1.02 V D,E VDET2L VREL2U Overdischarge release voltage, upper / lower Detect rising edge of supply voltage VREL2 – 0.075 VREL2 VREL2 + 0.075 V D,E VREL2L tVDET2 Overdischarge detection delay time VDD − VC = 3.5V → 2.2V, VC − VSS = 3.5V 89 128 167 ms D tVREL2 Overdischarge release delay time VDD − VC = 2.2V → 3.5V, VC − VSS = 3.5V 0.7 1.2 1.7 ms D VDET3 Discharge overcurrent detection voltage Detect rising edge of V- pin voltage VDET3 – 0.012 VDET3 VDET3 + 0.012 V F tVDET3 Discharge overcurrent detection delay time VDD − VC=3.5V, VC − VSS=3.5V, V- = 0V to 0.5V 8 12 16 ms F tVREL3 Discharge overcurrent release delay time VDD − VC=3.5V, VC − VSS=3.5V, V- = 3.0V → 0V 0.7 1.2 1.7 ms F VSHORT Short detection voltage VDD − VC=3.5V, VC − VSS=3.5V VSHORT – 0.1 VSHORT VSHORT + 0.1 V F tSHORT Short detection delay time (4) VDD − VC=3.5V, VC − VSS=3.5V, V- = 0V to 7.0V 150 300 500 µs F RSHORT Discharge overcurrent release resistance VDD − VC=3.5V, VC − VSS=3.5V, V- = 0.3V 20 35 70 k F (1) Refer to TEST CIRCUITS for detail information (2) 0 V battery charging permission supported product only. (3) 0 V battery charging inhibition supported product only. (4) Short circuit release delay time is same as tVREL3.

NO.EA-650-231025 R5460N5xxXX Electrical Characteristics (Continued) (Ta = 25C) Symbol Parameter Conditions Min. Typ. Max. Unit Circuit(1) VDET4 Charge overcurrent detection voltage Detect rising edge of V - pin voltage VDET4 − 0.022 VDET4 VDET4 + 0.022 V G tVDET4 Charge overcurrent detection delay time VDD − VC = 3.5V, VC − VSS = 3.5V, V- = 0V → −1.0V 5 8 11 ms G tVREL4 Charge overcurrent release delay time VDD − VC = 3.5V, VC − VSS = 3.5V, V- = −1.0V → 0V 0.7 1.2 1.7 ms G VDS Delay shortening mode Voltage VDD − VC = 4.4V, VOL1 COUT pin NMOS ON voltage IOL = 50µA, VDD − VC = 4.5V, VC − VSS = 4.5V 0.4 0.5 V H VOH1 COUT pin PMOS ON voltage IOH = −50µA, VDD − VC = 3.9V, VC − VSS = 3.9V 6.8 7.4 V I VOL2 DOUT pin NMOS ON voltage IOL = 50µA, VDD − VC = 2.0V, VC − VSS = 2.0V 0.2 0.5 V J VOH2 DOUT pin PMOS ON voltage IOH = −50µA, VDD − VC = 3.9V, VC − VSS = 3.9V 6.8 7.4 V K IDD Supply current VDD − VC = 3.9V, VC − VSS = 3.9V, V- = 0V

0 V battery

charging: Permission 4.0 8.0 µA L 0 V battery charging: Inhibition 4.5 9.0 ISTANDBY Standby current VDD − VC = 1.9V, VC − VSS = 1.9V Overdischarge release: Latch 0.1 µA L Overdischarge release: Auto Release 2.0 3.5 VSTBDET Detection threshold in standby mode VDD − VSS = 4.5V, RV- = 1kΩ VDD × 0.08 VDD × 0.28 VDD × 0.50 V M VCHGDET Release threshold in standby mode VDD − VC = VDET2U + 0.1V, VC − VSS = VDET2L + 0.1V, RV- = 1kΩ VDD × 0.0625 VDD × 0.125 VDD × 0.3625 V F All test parameters listed in Electrical Characteristics are done under Ta = 25°C only. (1) Refer to TEST CIRCUITS for detail information

NO.EA-650-231025 Test Circuits A OSCILLOSCOP E V VDD DOUT COUT VSS V B VC COUT V VSS VDD D VC DOUT V VSS VDD F VC DOUT VSS VDD V A G VC COUT VSS VDD V H VC COUT VSS VDD V A C VC COUT V VSS VDD E VC DOUT V VSS VDD

NO.EA-650-231025 I VC COUT VSS VDD V A J VC DOUT VSS VDD V A K VC DOUT VSS VDD V A L VC A VSS VDD M VC A VSS VDD V

NO.EA-650-231025 THEORY OF OPERATION VD1: Overcharge Detector The overcharge detector monitors the voltage between the VDD pin and the VC pin (the Cell1 voltage) and the voltage between the VC pin and the VSS pin (the Cell2 voltage). When the either voltage becomes more than or equal to the overcharge detector threshold (VDET1x), the overcharge is detected, and the charge stops by the external charge control Nch MOSFET turning off with the COUT pin being at Low level. When the Cell1 and the Cell2 voltages are more than or equal to VDET1x while a load is connected, the discharge current flows through the parasitic diode of the external MOSFET. (Auto Release type) When VDD becomes less than VDET1x while a load is connected, the COUT pin becomes High and the external MOSFET turns on, and it is possible to charge. Even when the load is not connected, the overcharge is released when the Cell1 and Cell2 voltages become less than or equal to VREL1x, and the COUT pin becomes High. The output delay time for overcharge detection is fixed internally. Even when the voltage of Cell1 or Cell2 becomes more than or equal to VDET1x, the overcharge is not detected when the voltage becomes less than VDET1x within the output delay time. The output delay time for overcharge release also is fixed. Besides, after detecting overcharge, even when the Cell1 or the Cell2 voltage are less than VDET1x while the charger is removed and a load is connected, the overcharge state is not released when the voltage rerises within the output delay time of the overcharge release. A level shifter incorporated in a buffer driver for the COUT pin makes the Low level of the COUT pin to the V - pin voltage and the High level of the COUT pin is set to VDD with CMOS buffer. VD2: Overdischarge Detector The overdischarge detector monitors the voltage between the VDD pin and the VC pin (Cell1 voltage) and the voltage between the VC pin and the VSS pin (Cell2 Voltage). When the either voltage becomes less than or equal to the overdischarge detector threshold (VDET2x), the overdischarge is detected and the discharge stops by the external discharge control Nch MOSFET turning off with the DOUT pin being at Low level. When the Cell1 and the Cell2 voltages are less than or equal to VDET2x while a charger is connected, a charge current flows through the parasitic diode of the external MOSFET. There are two types of the overdischarge release: Latch and Auto Release Latch type: To release the overdischarge detector, a charger must be connected. When the Cell1 and the Cell2 voltages become more than the released voltage from overdischarge (VREL2x), the DOUT becomes High after the delay time and the external MOSFET turns on, and it is possible to discharge. Auto Release type: When the Cell1 and the Cell2 voltages becomes more than VDET2x while a charger is connected, the DOUT pin becomes High and the external MOSFET turns on, and it is possible to discharge. Even when a charger is not connected, the overdischarge is released when the Cell1 and Cell2 voltages become more than or equal to VREL2x, and the DOUT pin becomes High.

NO.EA-650-231025 The output delay time for overdischarge detection is fixed internally. Even when the voltage of Cell1 or Cell2 becomes less than or equal to VDET2x, the overdischarge is not detected when the voltage becomes more than VDET2x within the output delay time. The output delay time for overdischarge release also is fixed. After detecting overdischarge, the V- pin voltage is pulled up to VDD by the internal switch. When the V- voltage becomes more than or equal to the standby mode detector threshold (VSTBDET), the IC halts unnecessary circuits to reduce the supply current and enters the standby state. As results, the consumption current of the IC itself reduces as small as possible. The output type of the DOUT pin is CMOS having High level of VDD and Low level of VSS. VD3: Discharge Overcurrent Detector, Short Circuit Protector When the charge and the discharge are acceptable, these detectors monitor the V - pin voltage. When the V- pin voltage becomes more than or equal to the discharge overcurrent detector threshold (VDET3) and less than the short protection voltage (VSHORT), the discharge overcurrent is detected. When the V- pin voltage becomes more than VSHORT, the short circuit protector is enabled. This leads the external discharge control Nch MOSFET turning off with the DOUT pin being at Low level to prevent from flowing the large current into the circuit. The output delay time for the discharge overcurrent detector is internally fixed. When the V- pin voltage is released from a value between VSHORT and VDET3 within the delay time, the discharge control FET keeps the High state. The output delay time for the discharge overcurrent release also is fixed internally. The V- pin has a built-in pull-down resistor to VSS to release from discharge overcurrent or short circuit. After the discharge overcurrent or the short circuit protection is detected, the V- pin voltage drops to VSS through the built-in pulled down resistor by eliminating a cause for them. When the V- pin voltage becomes less than or equal to VDET3, the detector is released. The resistor is on only when the discharge overcurrent or the short circuit is detected. The output delay time for discharge overcurrent is set shorter than the delay time for overdischarge detector. Therefore, even when the voltage between the VDD and the VC pins (Cell1) or the voltage between the VC and the VSS pins (Cell2) becomes less than VDET2x at the same time as the discharge overcurrent is detected, the discharge overcurrent detection is enabled.

NO.EA-650-231025 VD4: Charge Overcurrent Detector When the charge and the discharge are acceptable , the charge overcurrent detector monitors the V- pin voltage. For example, in case that a battery pack is charged by an inappropriate charger, an overcurrent flows and the V- pin voltage becomes less than or equal to the charge overcurrent detector threshold (VDET4). Then, the COUT pin becomes Low and flowing overcurrent in the circuit is prevented by turning off the external Nch MOSFET. The output delay for overcharge and charge current is internally fixed. Even when the V - pin voltage becomes less than or equal t o VDET4, the charge overcurrent is not detected when the voltage is more than VDET4 within the delay time. The charge overcurrent detector is released by disconnecting a charger and connecting a load. DS (Delay Shortening) function The output delay time for overcharge and overdischarge can be made shorter than those setting values by forcing a voltage less than or equal to the test shortening mode voltage to the V- pin.

0 V Battery Charging

This IC has the selectable charging function for the battery discharged to 0 V.

0 V Battery Charge Function “Permission”

This function allows to charge to the 0 V battery by connecting the charger with the minimum charging voltage (VSTCHG) and more.

0 V Battery Charge Function “Inhibition”

This function inhibits to charge to the battery with the 0 V -battery charging inhibition volta ge (VNOCHG) or less even when connecting the charger.

NO.EA-650-231025 Timing Charts Overcharge voltage and Charge overcurrent VREL1U VDET1U COUT VDD VDET3 VSS VDET4 Connect Charger Connect Load Disconnect Charger + Connect Load t t Charge/ Discharge Current Charge Current t t VDD-VC VC-VSS t VDET1L VREL1L Charge Overcurrent tVDET1 tVREL1 tVREL1 tVDET4 tVREL4 VDD tVDET1 Overcharge (Auto Release type) / Overcharge Current Timing Diagram

NO.EA-650-231025 Overdischarge / Discharge overcurrent and Short-circuit Overdischarge (Latch type) / Overdischarge Current / Short-circuit Timing Diagram Open Short Open Connect Charger Connect Load Connect Charger Connect Load Charge Discharge current ｔ V DET2U D OUT V DD Vss V DD V DET3 V SS V DET4 ｔ ｔ ｔ V DD V C V C V SS ｔ V DET2L V short tVDET2 V REL V REL Charge Current Over-discharge Current tVDET2 tVDET3 tVREL2 tVREL2 tVREL3 tVREL3 tSHORT

NO.EA-650-231025 V DET2U D OUT V DD Vss V DD V DET3 V SS V DET4 Connect Charger Open t t Charge/Dischar ge Current Charge Current t t V DD V C - V C V SS t Connect Load V DET2L V short Discharge overcurrent V REL2U V REL2L tVDET2 tVREL2 Open Short tshort tVDET2 tVDET3 tVREL2 tVREL3 tVREL3 Overdischarge (Auto Release type) / Overdischarge Current / Short-circuit Timing Diagram

NO.EA-650-231025

APPLICATION INFORMATION

Typical Application Circuit VDD COUT DOUT VSS 1kΩ R5460N5xxXX RVDD 330Ω CVDD RV- VC RVC 330Ω CVC 0.1μF 0.1μF R5460N5xxXX Typical Application Circuit Technical Notes on External Components

  • The voltage fluctuation is stabilized with RVDD, RVC, CVDD and CVC. If RVDD and RVC is too large, the detection voltage rises by the conduction current at detection. To stabilize the operation, it is recommended to use a resistor of 1kΩ or less for RVDD / RVC and a capacitor of 0.01 µF and more for CVDD / CVC.
  • RVDD and RV- serve as a current limit resistor when the battery pack is charged with reversed polarity , or a voltage of the connected charger is more than the absolute maximum rating. When using a small resistor for RVDD and RV-, the device’s power dissipation might be exceeded. Therefore, a total of RVDD and RV- must be 1kΩ or more. When using a large resistor for RV-, the charger might not be released by re-connecting to the battery pack after the overdischarge detection. Therefore, RV- must be 3.0kΩ or less.
  • The typical application circuit diagrams are just examples. This circuit performance largely depends on the PCB layout and external components. In the actual application, fully evaluation is necessary.
  • If the positive terminal and the negative terminal of the battery pack are short even though the device has the short protection circuit, a large current may flow through the FET during the short detection delay time. Therefore, select an appropriate FET with large enough current capacitance to endure the large current during the delay time.

NO.EA-650-231025 TECHNICAL NOTES A peripheral component or the device mounted on PCB should not exceed a rated voltage, a rated current or a rated power. When designing a peripheral circuit, please be fully aware of the following points.

  • Please evaluate the product at the PCB level before use, as some symptoms may remain that cannot be confirmed by the evaluation at the IC level.
  • When using any coating or underfill to improve moisture resistance or joining strength, evaluate them adequately before using. In certain materials or coating conditions, corrosion by contained cons tituents, current leakage by moisture absorption, crack and delamination by physical stress can happen. If the curing temperature of the coating material or underfill material exceeds the absolute maximum rating, the electrical characteristics of this product may change.
  • When performing X -ray inspection in mass production process and evaluation build stage such as the product functions and characteristics confirmation, please confirm X -ray irradiation does not exceed 1.5Gy (absorbed dose for air).

PACKAGE DIMENSIONS SOT-23-6 DM-SOT-23-6-JE-B i (Unit: mm) 2.9±0.2 1.9±0.2 (0.95) (0.95) 6 4 1 2 3 1.6-0.1 +0.2 2.8±0.3 0.4-0.2 Unit : mm +0.1 0.8±0.1 1.1-0.1 +0.2 0 to 0.1 0.15-0.05 +0.1 0.2MIN.

Ver. B i : Product Code … Refer to Part Marking List : Lot Number … Alphanumeric Serial Number R5460N (SOT-23-6) Part Markings NOTICE There can be variation in the marking when different AOI (Automated Optical Inspection) equipment is used. In the case of recognizing the marking characteristic with AOI, please contact our sales or distributor before attempting to use AOI. R5640N Part Marking List Product Name ① ② Product Name ① ② R 5 4 6 0 N 5 0 7 A F AA R 5 4 6 0 N 5 0 8 A F AB R 5 4 6 0 N 5 1 2 A F AC R 5 4 6 0 N 5 1 4 A F AD R 5 4 6 0 N 5 1 8 A F AE R 5 4 6 0 N 5 2 5 A F AF R 5 4 6 0 N 5 2 8 A F AG R 5 4 6 0 N 5 3 4 A F AH R 5 4 6 0 N 5 3 6 A F AJ R 5 4 6 0 N 5 3 7 A F AK R 5 4 6 0 N 5 3 8 A F AL R 5 4 6 0 N 5 4 6 A J AN R 5 4 6 0 N 5 4 7 A G AM R 5 4 6 0 N 5 48 AJ A P R 5 4 6 0 N 5 49 AJ A R

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