R5458L NISSHINBO | Alldatasheet

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1-Cell Li-Ion or Polymer Battery Secondary Protection IC No.EA-380-221109 OUTLINE The R5458L is a high voltage tolerant CMOS-based overcharge secondary protection IC for 1-Cell Li-ion or Li- polymer battery. The R5458L monitors the cell batteries and protects them from overcharge conditions. Internally, the R5458L consists of a voltage detector, a voltage reference unit, an oscillator, a counter, a delay circuit, and a logic circuit. The cell is monitored for overcharging condition and triggers an internal counter once the overcharge threshold is exceeded. After the overcharge detection delay time, the output of COUT is transitioned to a high level. The output of COUT goes low if the cell voltage drops below the overcharge release voltage. The output type of the COUT pin is CMOS. The R5458L is offered in a small 6-pin DFN1814-6C package.

FEATURES

  • High Voltage Tolerant Process
  • Low Supply Current
  • Output Voltage
  • High Accuracy Voltage Detection ±25 mV, Ta = 0 to 60°C
  • Overcharge Output Delay Function by short-circuiting the VSS pin and the DS pin.
  • Compact Package

APPLICATIONS

  • 1-C ell Li-Ion or Li-Polymer Battery Pack

No.EA-380-221109 SELECTION GUIDE The overcharge detector threshold and overcharge release voltage, the overcharge detection delay time and overcharge release delay time, and the overcharge release type are user-selectable options. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free R5458Lxxx∗$-TR DFN1814-6C 5,000 pcs Yes Yes xxx: Specify the combination of overcharge detector threshold (VDET1) and overcharge release voltage (VREL1). Refer to Product Code Table for details. VDET1: 4.0 V to 4.7 V in 5 mV step VREL1: VDET1 –0 V to 0.4 V in 50 mV step ∗: Specify the combination of overcharge detection delay time (tVDET1) and overcharge release delay time (tVREL1). Refer to the table below. Delay Time Code Code tVDET1 [s] tVREL1 [ms] A 2 16 $: Specify the overcharge release type. Refer to the table below. Overcharge Release Code Code Overcharge Release Type A Voltage Release Type Product Code Table The product code is determined by the combination of set voltage (overcharge detector threshold: V DET1, overcharge release voltage: VREL1) and delay time (overcharge detection delay time: tVDET1, overcharge release delay time: tVREL1) and overcharge release type. Product Code Table Product Name Set Voltage [V] Delay Time Overcharge Release Type VDET1 VREL1 tVDET1 [s] tVREL1 [ms] R5458L101AA 4.500 4.150 2 16 Voltage Release Type R5458L102AA 4.550 4.200 2 16 Voltage Release Type R5458L103AA 4.650 4.300 2 16 Voltage Release Type R5458L104AA 4.600 4.300 2 16 Voltage Release Type R5458L105AA 4.250 4.100 2 16 Voltage Release Type

No.EA-380-221109 BLOCK DIAGRAMS VDD VSS Oscillator Logic Circuit Counter DS Circuit COUT DS R5458L Block Diagram

No.EA-380-221109 PIN DESCRIPTIONS DFN1814-6C Pin Configuration DFN1814-6C Pin Description Pin No. Symbol Description

1 NC No Connection

2 COUT Output of Overcharge Detection

3 DS Delay Shortening

4 VSS Ground

5 VDD Power Supply, substrate level of the IC

6 V− Negative Power Supply of COUT Pin

No.EA-380-221109 ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings (Ta = 25°C, VSS = 0 V) Symbol Item Ratings Unit VDD Power Supply Voltage −0.3 to 12 V V− V− P in Input Voltage VDD −30 to VDD +0.3 V DS DS Pin Input Voltage VSS −0.3 to VDD +0.3 V VCOUT COUT Pin Output Voltage V− −0.3 to VDD +0.3 V PD Power Dissipation 150 mW 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 operation at or over these absolute maximum ratings is not assured. RECOMMENDED OPERATING CONDITIONS Recommended Operating Conditions Symbol Item Ratings Unit VDD Operating Input Voltage 1.5 to 5.0 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 over 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-380-221109

ELECTRICAL CHARACTERISTICS

Ta = 25°C, unless otherwise specified. Symbol Item Conditions Min. Typ. Max. Unit Test Circuit VDET1 Overcharge Detector Threshold Detect rising edge of supply voltage (25°C) R1 = 330 Ω VDET1 −0.020 VDET1 VDET1 +0.020 V A Detect rising edge of supply voltage (0 to 60°C)1 R1 = 330 Ω VDET1 −0.025 VDET1 +0.025 VREL1 Overcharge Release Voltage Detect falling edge of supply voltage R1 = 330 Ω VREL1 −0.050 VREL1 VREL1 +0.050 V A tVDET1 Output Delay of Overcharge VDD = 3.5 V to 4.8 V tVDET1 ×0.8 tVDET1 tVDET1 ×1.2 s A tVREL1 Output Delay of Release from Overcharge VDD = 4.8 V to 3.5 V tVREL1 ×0.8 tVREL1 tVREL1 ×1.2 ms A VDS Delay Time Shortening Mode Voltage VDD = 4.8 V 0.4 V B RDS DS Pin Pull-up Resistances VDD = 3.9 V 200 500 1000 kΩ C VOH COUT Pch On Voltage IOH = −50 µA, VDD = 4.8 V 4.3 4.6 V D VOL COUT Nch On Voltage IOL = 50 µA, VDD = 3.9 V 0.4 0.5 V E Istandby Standby Current VDD = 1.9 V 0 0.5 µA F ISS Supply Current VDD = 3.9 V 1.5 3.0 µA F 1 This specification is guaranteed by design, not tested in mass-production.

No.EA-380-221109 TEST CIRCUITS A VDD VSS COUTV DS B VDD VSS COUT V DS C VDD VSS COUT A DS V D VDD VSS COUT DS V E VDD VSS COUT DS V F VDD VSS COUT DSA

No.EA-380-221109 THEORY OF OPERATION VDET1/ Overcharge Detector The voltage between the VDD pin and the VSS pin is monitored while the cell is charged. The cell is monitored for overcharging condition and triggers an internal counter once the cell voltage exceeds the overcharge detector threshold. After the overcharge detection delay time, an external charging control Nch MOSFET turns on, which means the output of COUT is transitioned to a high level, a fuse on the charger path is cut, and the charging stops. The output of COUT goes low if the cell voltage drops below the overcharge release voltage. During the overcharge detection/ release delay time, the cell voltage needs to be kept more than the overcharge detector threshold/ release voltage level to make the output of COUT high/ low. The output type of the COUT pin is CMOS output between V− and VDD. Delay Shortening Function The overcharge detection delay time can be shortened to 8pprox.. 4 ms by short -circuiting the VSS pin and the DS pin (Max. 0.4 V). Timing Chart Overcharge Operation Timing Chart VDET1 VDD VREL1 Connect Charger Connect Load COUT Charge/Discharge Current tVDET1 tVDET1tVREL1 tVREL1 Charge Current Discharge Current

No.EA-380-221109

APPLICATION INFORMATION

R5458L Typical Application Circuit Recommended External Components Symbol Typ. Unit Range R1 330 Ω 330 to 1000 C1 0.1 µF 0.01 to 0.1 R5458L V DD V SS Cell 1 COUT Active-high SC Protector V DS

No.EA-380-221109 Technical Notes on the Selection of Components

  • R1 and C1 stabilize a supply voltage to the IC. A recommended R1 value is equal or less than 1 kΩ. A large value of R1 makes detection voltage shift higher because of the conduction current flowed in the IC.
  • T o stabilize the operation of the IC, use the C1 with the value in the range from 0.01 µF to 0.1 µF. To choose the most suitable value of C1, fully evaluation is necessary.
  • 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.
  • Overvoltage and the overcurrent beyond the absolute maximum rating should not be forced to the protection IC and external components. During the time until the fuse is open after detecting overcharge, a large current may flow through the FET. Select an FET with large enough current capacity in order to endure the large current.
  • We cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in our product. If technical notes are not complied with the circuit which is used our product, we are not responsible for any damages and any accidents.
  • To connect the SC protector, connect the SC protector to the cell must be the last. Contact Information for Inquiries regarding SC Pro tector Dexerials Corporation (Sony Chemical & Information Device Company Ltd.) Gate-city Osaki East Tower 8F, 1-11-2 Osaki, Shinagawa, Tokyo, 141-0032 TEL: 03-5435-3946 URL: http://www.dexerials.jp

No.EA-380-221109 TYPICAL CHARACTERISTICS (vs. Ambient Temperature) Note: Typical Characteristics are intended to be used as reference data, they are not guaranteed. 1) Overcharge Detector Threshold 2) Overcharge Release Voltage 3) Overcharge Detection Output Delay Time 4) Overcharge Release Output Delay Time 4.47 4.48 4.49 4.50 4.51 4.52 4.53 -50 -25 0 25 50 75 100 VDET1[V] Temperature[℃] R5458L101AA 4.10 4.12 4.14 4.16 4.18 4.20 -50 -25 0 25 50 75 100 VREL1[V] Temperature[℃] R5458L101AA 1.50 1.75 2.00 2.25 2.50 -50 -25 0 25 50 75 100 tVDET1[s] Temperature[℃] R5458L101AA -50 -25 0 25 50 75 100 tVREL1[ms] Temperature[℃] R5458L101AA

No.EA-380-221109 5) Delay Time Shortening Mode Voltage 6) DS Pin Pull-up Resistance 7) COUT Pch ON Voltage 8) COUT Nch ON Voltage 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -50 -25 0 25 50 75 100 VDS[V] Temperature[℃] R5458L101AA 200 400 600 800 1000 -50 -25 0 25 50 75 100 RDS[kΩ] Temperature[℃] R5458L101AA 4.2 4.4 4.6 4.8 5.0 -50 -25 0 25 50 75 100 VOH[V] Temperature[℃] R5458L101AA 0.0 0.1 0.2 0.3 0.4 0.5 -50 -25 0 25 50 75 100 VOL[V] Temperature[℃] R5458L101AA

No.EA-380-221109 9) Standby Current 10) Supply Current 0.0 0.1 0.2 0.3 0.4 0.5 -50 -25 0 25 50 75 100 ISTANDBY[uA] Temperature[℃] R5458L101AA 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -50 -25 0 25 50 75 100 ISS[uA] Temperature[℃] R5458L101AA

No.EA-380-221109 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 constituents, 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 DFN1814-6C Ver. A i

Ver. AE i : Product Code … Refer to the following table. : Lot Number … Alphanumeric Serial Number 654 123 R5458L (DFN1814-6C) Marking Specification R5458L Part Markings Table Product Name   R5458L101AA RA Lot No. R5458L102AA RB Lot No. R5458L103AA RC Lot No. R5458L104AA RD Lot No. R5458L105AA RE Lot No.

  1. T he products and the product specifications described in this document 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 our sales representatives for the latest information thereon. 2. The materials in this document may not be copied or otherwise reproduced in whole or in part without the prior written consent of us. 3. This product and any technical information relating thereto are subject to complementary export controls (so- called KNOW controls) under the Foreign Exchange and Foreign Trade Law, and related politics ministerial ordinance of the law. (Note that the complementary export controls are inapplicable to any application-specific products, except rockets and pilotless aircraft, that are insusceptible to design or program changes.) Accordingly, when exporting or carrying abroad this product, follow the Foreign Exchange and Foreign Trade Control Law and its related regulations with respect to the complementary export controls. 4. The technical information described in this document shows typical characteristics 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 our 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, telecommunication 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 should first contact us.
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