【SLKOR semiconductor】SL4054 SOT-23-5 Li-Ion Linear Charging IC

Description:

The Slkor®4054 is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its SOP package and low external component count make the SL4054 ideally suited for portable applications. Furthermore, the SL4054 can work within USB and wall adapter. No blocking diode is required due to the internal PMOSFET architecture and have prevent to negative Charge Current Circuit. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The SL4054 automatically terminates the charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. When removing input power automatically puts the SL4054 into a low current mode to reduce the battery's leakage current to below 2uA, and the shutdown mode reduces supply current to 45µA. SL4054 Other features include current monitor, under voltage lockout, automatic recharge and two status pin to indicate charge termination and the presence of an input voltage. The Slkor® SL4054 is available in a SOT23-5 (ThinSOTTM) package.

Characteristics:

● The programmable charging current as high as 500mA;

● In no need of extemal MOSFET,sense resistors or backward diodes;

● Constant current/constant voltage mode operation,with the function of thermal protection;

● Charging for lithium batteries through the USB port:

● Preset charging voltage with the accuracy of 1%;

● The current of 20uA in the standby mode:

● The trickle charging voltage of 2.9V

● The limitation of the surge current with soft start

● The SOT23-5 package


Applications: 
USB-Powered Charging, Handheld Computers, MP3 Players, Bluetooth Headphones, Digital Cameras, Cellular Telephones, PDA.


About Slkor

With an elite team from prestigious Chinese Tsinghua University and Korean Seoul Yonsei University, Shenzhen Slkor Micro Semicon Co., Ltd. is dedicated to the third generation semiconductor SiC power devices and conventional semiconductor devices. We are strong on the relevant methodologies, new materials, new technologies and new products. Our products cover discrete devices and ICs,  diodes, transistors, power devices, power management chips, and analogue chips etc. Under the strong leadership of Mr. Song Shiqiang, the CEO of Slkor, starts from an IP design house, Slkor is now a national high-tech enterprise covering the R&D, production and sales service of semiconductor devices. Slkor provides quality domestic equivalents of semiconductor from major international players. For prompt services, Slkor has two flagship stores in the world famous hardware valley Shenzhen Huaqiangbei.










For more alternatives 

o. Product Name SLKOR Part Number Package Equivalent Brand and Model

1 Driver IC SL27511 SOT-23 UCC27511DBVR (TI)

2 Driver IC SL27517 SOT-23 UCC27517DBVR (TI)

3 Driver IC SL8402 SOT-223 NCV8402 (ON Semiconductor), ZXMS6005DGQ (Diodes), NSE11409-Q1 (NCE)

4 Driver IC SL27523 SOP-8 UCC27523 (TI)

5 Driver IC SL27524 SOP-8 UCC27524 (TI)

6 Driver IC SL27525 SOP-8 UCC27525 (TI)

7 LED Driver SL4139 SOT-23-5 CAT4139 (ON Semiconductor)

8 LED Driver SL401 SOT-23-6 BCR401 (Infineon)

9 Power Electronic Switch SL3405S SOP-8 BTS3405G (Infineon)

10 Linear Voltage Regulator SL4949 SOP-8 L4949E (STMicroelectronics), TLF4949 (Infineon), NCV4949 (ON Semiconductor)

11 Linear Voltage Regulator SL4275 TO-252-5 TLE4275 (Infineon), MP2014 (MPS), BD42754 (ROHM), TLE4275-Q1 (TI), TPS7B87-Q1 (TI)

12 Linear Voltage Regulator SL4275-G TO-263-5 TLE42754G (Infineon), TLE4275-Q1 (TI), NCV4275C (ON Semiconductor), NCV4290 (ON Semiconductor), NCV8675 (ON Semiconductor), NJW4185 (Nisshinbo), BD42754 (ROHM)

13 Linear Voltage Regulator SL4264-2 SOT-223 TLE4264 (Infineon), TPS7B69-Q1 (TI), LM2936Q (TI), NCV8664 (ON Semiconductor), NCV4266-2C (ON Semiconductor)

14 Linear Voltage Regulator SL42744D TO-252-3 TLE42744 (Infineon), NJW4187 (Nisshinbo), NJW4185 (Nisshinbo), NCV7800 (ON Semiconductor), NCV4274 (ON Semiconductor), TL720M05-Q1 (TI)

15 Linear Voltage Regulator SL42764 TO-252-5 TLE42764 (Infineon), TPS7B86-Q1 (TI), NCV4276C (ON Semiconductor), NJW4186 (Nisshinbo)

16 Linear Voltage Regulator SL4284 TO-252-3 TLE4284 (Infineon)

17 Power Management IC SL2044 SOP-8 U2044

18 DC-DC Power Chip SL8366 ESOP-8 TLE8366 (Infineon)

19 Power Management IC SL2044 SOP-8 U2044

20 ADC SL121S101 SOT-23-6 ADC121S101

21 ADC SL101S101 SOT-23-6 ADC101S101

22 ADC SL081S101 SOT-23-6 ADC081S101

23 ADC SL121S051 SOT-23-6 ADC121S051

24 ADC SL101S051 SOT-23-6 ADC101S051

25 ADC SL081S051 SOT-23-6 ADC081S051

26 ADC SL121S021 SOT-23-6 ADC121S021

27 ADC SL101S021 SOT-23-6 ADC101S021

28 ADC SL081S021 SOT-23-6 ADC081S021

29 ADC SL7886 SOT-23-6 ADS7886

30 ADC SL7887 SOT-23-6 ADS7887

31 ADC SL7888 SOT-23-6 ADS7888

32 ADC SL7866 SOT-23-6 ADS7866

33 ADC SL7867 SOT-23-6 ADS7867

34 ADC SL7868 SOT-23-6 ADS7868

35 ADC SLS7476 SOT-23-6 ADCS7476

36 ADC SLS7477 SOT-23-6 ADCS7477

37 ADC SLS7478 SOT-23-6 ADCS7478

38 ADC SL7476 SOT-23-6 AD7476

39 ADC SL7477 SOT-23-6 AD7477

40 ADC SL7478 SOT-23-6 AD7478

41 ADC SL7466 SOT-23-6 AD7466

42 ADC SL7467 SOT-23-6 AD7467

43 ADC SL7468 SOT-23-6 AD7468

44 ADC SL2360 SOT-23-6 LTC2360

45 ADC SL2361 SOT-23-6 LTC2361

46 ADC SL2362 SOT-23-6 LTC2362

47 ADC SL2365 SOT-23-6 LTC2365

48 ADC SL11661 SOT-23-6 MAX11661

49 ADC SL11663 SOT-23-6 MAX11663

50 ADC SL11665 SOT-23-6 MAX11665

51 ADC SL7910 SOT-23-6 AD7910

52 ADC SL7920 SOT-23-6 AD7920

53 Low Voltage, Single-Pole Double-Throw Switch SL3157XC6 SC-70-6 TS5A3157/NC7SB3157/FSA3157/SGM3157

54 Low Voltage, Single-Pole Double-Throw Switch SL3157XT6 SOT-23-6 TS5A3157/NC7SB3157/FSA3157/SGM3157

55 General Comparator SL331S5 SOT-23-5 RS331

56 Level Shifter - Auto-Bidirectional SL0101S6 SOT-23-6 TXS0101/RS0101

57 Level Shifter - Auto-Bidirectional SL0102S8 SOT-23-8 TXS0102/RS0102

58 Logic Gate - AND, NAND 74LVC1G11S6 SOT-23-6 SN74LVC1G11

59 Logic Gate - AND, NAND 74LVC1G10S6 SOT-23-6 SN74LVC1G10

60 Logic Gate - AND, NAND 74LVC1G32S5 SOT-23-5 SN74LVC1G32

61 Logic Gate - OR, NOR 74LVC1G27S6 SOT-23-6 SN74LVC1G27

62 Logic Gate - Buffer 74LVC1G34S5 SOT-23-5 SN74LVC1G34

63 Logic Gate - Buffer 74LVC2G34S6 SOT-23-6 SN74LVC2G34

64 Infrared Thermopile Sensor SL-S-TRS-5.5D1 SMD MLX90632

65 Digital Infrared Thermopile Sensor SL-W-TRS-5.5D1 TO-46 MLX90614BAA/BBA

66 Long Distance Digital Infrared Thermopile Sensor SL-FW-TRS-5.5D1 TO-39 MLX90614BAF/BBF

67 Low Side Driver SL27531 SOT-23-6 UCC27531DBVR

68 Low Side Driver SL27624MS SOP-8 UCC27624DR

69 High/Low Side Driver SL27714 SOP-14 UCC27714

70 High/Low Side Driver SL21814 SOP-14 IR21814/IRS21814

71 High/Low Side Driver SL2110 SOP-16W IR2110S

72 Half-Bridge Driver SL2003 SOP-8 IRS2003S

73 Half-Bridge Driver SL2004 SOP-8 IRS2004

74 Half-Bridge Driver SL2103 SOP-8 IR2103S

75 Synchronous Buck DC-DC SL8205FC SOP-8-EP SY8205FCC

76 CAN Chip SL82C250T SOP-8 PCA82C250T

77 CAN Chip SL65HVD230DR SOP-8 SN65HVD230DR

78 CAN Chip SL65HVD232DR SOP-8 SN65HVD232DR

79 CAN Chip SL65HVD233DR SOP-8 SN65HVD233DR

80 CAN Chip SL65HVD234DR SOP-8 SN65HVD234DR

81 RS232 Transceiver SL3232EESE SOP-16 MAX3232E

82 RS485 Chip SL65HVD08DR SOP-8 SN65HVD08DR

83 RS485 Chip SL3088EESA SOP-8 MAX3088E

84 RS422 Chip SL3490EESA SOP-8 MAX3490E

85 Operational Amplifier SL9062C SOP-8 TI TLV9062

86 Operational Amplifier SL9062D SOT-23-8L TI TLV9062

87 Operational Amplifier SL2122C SOP-8 NJM2122

88 Display Power Management SL6802 DFN12 BV6802 (BOFA)

89 Gate Driver Isolation SL5350SDR SOP-8 UCC5350

90 Gate Driver Isolation SL5350MDR SOP-8 UCC5350

For inquiries please reach out: claire@slkormicro.com

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