SMB139 SUMMIT Microelectronics, Inc:, SMB139 Datasheet
SMB139
Related parts for SMB139
SMB139 Summary of contents
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... Tolerance Optional I2C Communication (Optional) Figure 1 – Applications block diagram featuring the SMB139 programmable linear battery charger. * Contact factory for higher current version © SUMMIT Microelectronics, Inc. 2005 INTRODUCTION The SMB139 is a programmable single-cell lithium-ion/lithium-polymer battery charger for a variety of portable applications. ...
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... The overall system accuracy of the SMB139 is 1%, allowing for a higher capacity utilization versus other conventional solutions. When a battery or an external supply is inserted and the ENABLE input is asserted, the SMB139 performs the pre-qualification checks before initiating a charging cycle ...
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... Voltage Temperature Limit Temperature Limit Prog. Cold Limit Prog. Cold Limit THERM THERM Prog. Hot Limit Prog. Hot Limit Figure 2 – Internal block diagram of the SMB139 programmable linear battery charger. Summit Microelectronics, Inc Registers Registers Charge Charge Control Control Control Control ...
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... Connect to GND for 40mA. When unused, this pin should be tied to VDDCAP (do not leave floating Bus Data Bus Clock. Charge Current Output SMB139 lead-free uCSP - 1.3mm x 2.1mm Bottom View (Balls facing up) 2121 3.0 6/19/2008 SMB139 4 ...
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... Conditions V = 4.2V FLT V = 4.2V FLT V = 4.2V FLT V – BATT o V < T +70 IN BATT 2121 3.0 6/19/2008 SMB139 ) JA TM -15…………………………..………..…....55°C/W Min Typ +4.35 +3.5 10 +7.0 V +0.1 FLT 130 700 o C 110 Max Unit +6.5 ...
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... CSIR code will result in inaccuracies exceeding those specified above. Note 2: The SMB139 device is not intended to function as a battery pack protector. Battery packs used in conjunction with this device need to provide adequate internal protection and to comply with the corresponding battery pack specifications. ...
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... All voltages are relative to GND. FLOAT Conditions Disabled Enabled Short Long t = 350min FCTO t = 699min FCTO t = 1398min FCTO t = 44min PCTO t = 87min PCTO t = 175min PCTO 2121 3.0 6/19/2008 SMB139 Min Typ Max Unit msec 250 msec 0 1 msec 256 msec -15 t +15 % FCTO -15 t +15 % PCTO ...
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... CHARGING ALGORITHM (200mA) SMB139 Programmable Charging Algorithm 0.4 0.35 0.3 0.25 0.2 0.15 Trickle charge Vbat<2.00V 0.1 Itrickle = 3mA 0.05 0 Figure 3 – Charging Algorithm (200mA)) Summit Microelectronics, Inc Fast-charge Vbat<Vfloat Ichg (prog) Pre-charge Vbat<Vprechg Iprechg (prog) Battery Voltage (V) 2121 3.0 6/19/2008 SMB139 Charge termination Iterm (prog) Taper-charge ...
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... SCL low to valid SDA (cycle n) SCL low (cycle n+1) to SDA change Note 3 Note 3 Noise suppression Configuration registers Memory array HIGH LOW HD:DAT SU:DAT HD:STA t DH 2121 3.0 6/19/2008 SMB139 400kHz Min Typ Max Units 0 400 kHz 1.3 µs 0.6 µs 1.3 µs 0.6 µs 0.6 µs 0.6 µs 0.2 0.9 µ ...
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... If the battery voltage is below approximately 2.0V, a charging current of 3mA (typical) is applied on the battery cell. This allows the SMB139 to reset the protection circuit in the battery pack and bring the Summit Microelectronics, Inc battery voltage to a higher level without compromising safety ...
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... IC. Programmable Battery Charging A unique feature of the SMB139 is the ability to modify all of the important charger parameters via internally programmable EEPROM, found in Registers 00-07. Once the device has been configured correctly, the EEPROM may be locked, preventing any further changes ...
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... Under-voltage alarm • Missing battery detection Internal Thermal Protection When the die temperature of the SMB139 reaches approximately 110°C, charge current will be reduced to prevent further die heating. This internal thermal protection circuit helps to improve device (and consequently, system) reliability. Summit Microelectronics, Inc ...
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... APPLICATIONS INFORMATION (CONTINUED) EXTERNAL COMPONENTS Input and Output Capacitors The SMB139 allows for the use of low-cost ceramic capacitors on both the input and the output. The minimum input capacitance value is 2.2µF. The minimum output capacitance of 2.2µF is desired in parallel with the battery installed on the BATT pin. A 1µ ...
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... NO Vbat < Vfloat? YES Vfloat Regulate Current to I(charge) <(Icharge-max) YES I(charge) < I(terrm)? NO t(charge) expired Vbat <Vprechg? YES 2121 3.0 6/19/2008 SMB139 3mA trickle charge NO (timers off) Regulate Current to Precharge Mode I(precharge) Reset t(precharge) (<Icharge-max) NO Vbat <Vprechg? NO YES t(precharge) expired? YES YES Battery Fault ...
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... Resistors Resistor, 1k, 0402 Capacitors 2 Ceramic, 2.2uF, X5R, 16V, 0603 3 Ceramic, 1.0uF, X5R, 6.3V, 0402 Semiconductors 4 SMB139E (CSP), Linear Charger 5 LED, Red, SMD, 0805 Summit Microelectronics, Inc Vendor / Part Number Vishay# CRCW04021K00FKED Murata# GRM188R61C225KE15D Murata# GRM155R60J105KE19D Summit Microelectronics Lite-On# LTST-C190CKT 2121 3.0 6/19/2008 ...
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... GND Summit Microelectronics, Inc The Windows GUI software will generate the data and send downloaded to the SMB139 via the programming Dongle and cable. interface is shown in Figure 9. When design prototyping is complete, the software can generate a HEX data file that should be transmitted to Summit for approval ...
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... Configuration Registers are located and 0F HEX HEX HEX Table 3 – Address bytes used by the SMB139. 2121 3.0 6/19/2008 SMB139 After the dummy write command is The host then waits for an The first byte read is data from the 2 C bus protocol. See Figure 9 and the ...
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... Figure 12 – Configuration Register Read 2121 3.0 6/19/2008 SMB139 Data Data ( ...
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... CONFIGURATION REGISTERS The following tables describe the user-programmable registers of the SMB139 programmable battery charger. Locations 00-0F are non-volatile, EEPROM registers; however, registers 00-07, which contain the battery charging parameters, may also be configured to be programmable in RAM. command registers. To lock all of the configuration registers, set 0E[2]=1; please note that this operation cannot be undone. To allow volatile access to locations 00-07, set 0E[0]=1 ...
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... 2121 3.0 6/19/2008 SMB139 Bit0 Termination Current 0 10mA 1 15mA 0 20mA 1 25mA 0 30mA 1 35mA 0 40mA 1 45mA 0 51mA 1 56mA 0 61mA 1 67mA 0 73mA 1 78mA 0 84mA 1 89mA 20 ...
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... SMB139 Bit0 Float Voltage 0 3.850V 1 4.020V 0 4.040V 1 4.060V 0 4.080V 1 4.100V 0 4.120V 1 4.140V 0 4.160V 1 4.180V 0 4.200V 1 4.220V 0 4.240V 1 4.260V 0 4.280V 1 4.300V 0 4.320V 1 4 ...
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... 2121 3.0 6/19/2008 SMB139 Bit0 Automatic Recharge X Enabled X Disabled Bit0 Current Termination X Enabled X Disabled Bit0 Pre-charge to Fast-charge Voltage Threshold X 2.4V X 2.5V X 2.6V X 2.7V X 2.8V X 2.9V X 3.0V X 3.1V Bit0 Hold-off Timer X < ...
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... Bit3 Bit2 Bit1 2121 3.0 6/19/2008 SMB139 Bit0 Status Output STAT is active low while charging, active X high all other times STAT blinks while charging, is active low X when finished, active high when disabled Bit0 Charging Initiation 2 Requires I C command – EN pin has no ...
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... Bit3 Bit2 Bit1 Bit3 Bit2 Bit1 2121 3.0 6/19/2008 SMB139 Bit0 EN (Enable) Polarity X Active Low X Active High 2 Bit0 I C Bus Address X 000 X 001 X 010 X 011 X 100 X 101 X 110 X 111 2 Bit0 I C Slave Address ...
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... 2121 3.0 6/19/2008 SMB139 Bit0 Charging Status Charger has completed at least 1 successful X charge since being enabled Charger has completed at least 1 re-charge X cycle since being enabled Bit0 Timeout Status X No timeouts have occurred X Pre-charge timeout X Fast-charge timeout ...
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... PACKAGE DRAWING Summit Microelectronics, Inc TM 15-Ball Ultra CSP 2121 3.0 6/19/2008 SMB139 26 ...
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... E nnn V T Lead Free Part Number Suffix TM Specific requirements are contained in the suffix Default part-number is: SMB139ET-732V NOTICE Please check the Summit Microelectronics Inc. web site at PROGRAMMABLE POWER FOR A GREEN PLANET™ 2121 3.0 6/19/2008 SMB139 Status Tracking Code (Summit Use) 27 ...