ZSPM4551KIT V1.0 ZMDI, ZSPM4551KIT V1.0 Datasheet
ZSPM4551KIT V1.0
Specifications of ZSPM4551KIT V1.0
Related parts for ZSPM4551KIT V1.0
ZSPM4551KIT V1.0 Summary of contents
Page 1
Data Sheet Rev. 1.00 / December 2012 ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Power and Precision ...
Page 2
... Package: 16-pin PQFN (4mm x 4mm) ZSPM4551 Application Circuit ZSPM4551 VIN VTH_REF GND VTHERM C L VDD OUT VDD SW SCL VSENSE SDA VBAT EN NFLT PGND For more information, contact ZMDI via Analog@zmdi.com. + 0.3V (3.5V min.) BAT R REF R SENSE Battery C OUT R THM VDD R PULLUP (optional) ...
Page 3
... Current VSENSE Control VBAT I²C™*is a trademark of NXP. Package 16-pin PQFN / 7” Reel (1000 parts) 16-pin PQFN / 13” Reel (3300 parts) Analog@zmdi.com ZMD Far East, Ltd. Zentrum Mikroelektronik 3F, No. 51, Sec. 2, Dresden AG, Korea Office Keelung Road U-space 1 Building 11052 Taipei 11th Floor, Unit JA-1102 ...
Page 4
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Contents 1 ZSPM4551 Characteristics .................................................................................................................................. 6 1.1. Absolute Maximum Ratings .......................................................................................................................... 6 1.2. Thermal Characteristics ................................................................................................................................ 7 1.3. Recommended Operating Conditions .......................................................................................................... 7 1.4. Electrical Characteristics .............................................................................................................................. 8 2 C™ Interface Timing Requirements ......................................................................................................... ...
Page 5
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries List of Figures Figure 2.1 ZSPM4551 Block Diagram .................................................................................................................. 12 Figure 2.2 Charging State Diagram ...................................................................................................................... 15 2 C™ Transmission ...................................................................................................... 16 Figure 2.3 Subaddress C™ Start / Stop Protocol ................................................................................................................... ...
Page 6
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 1 ZSPM4551 Characteristics Important: Stresses beyond those listed under “Absolute Maximum Ratings” (section 1.1) may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these ...
Page 7
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 1.2. Thermal Characteristics Table 1.2 Thermal Characteristics Parameter Thermal Resistance Junction to Air 1) Assumes a 4x4mm QFN- 1.3. Recommended Operating Conditions Table 1.3 Recommended Operating Conditions Parameter Input Operating Voltage ...
Page 8
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 1.4. Electrical Characteristics Electrical characteristics T = -40°C to 125°C, VIN = 5.3V, (unless otherwise noted) J Table 1.4 Electrical Characteristics Parameter Symbol VIN Supply Voltage Voltage Input Quiescent Current I CC-NORM Normal Mode ...
Page 9
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Parameter Symbol Input Leakage – EN Pin I Input Leakage – SCL Pin I IN-SCL Input Leakage – SDA Pin I IN-SDA Low-Level Output Voltage V Thermal Shutdown Thermal Shutdown Junction Temperature TSD Hysteresis ...
Page 10
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Parameter Symbol Thermistor VTH_REF Output Voltage V VTH_REF Thermistor: 10KΩ Temperature Thresholds – β=3434K 0°C VTHERM Threshold (0°C) 0°C VTHERM Threshold with 0°C Hysteresis (10°C) 10°C VTHERM Threshold 10°C (10°C) 10°C VTHERM Threshold with ...
Page 11
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Parameter Symbol 50°C VTHERM Threshold (50°C) 50°C VTHERM Threshold with 50°C Hysteresis (49°C) 60°C VTHERM Threshold (60°C) 60°C VTHERM Threshold with 60°C Hysteresis (50°C) 2 1.5. I C™ Interface Timing Requirements Electrical characteristics T ...
Page 12
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 2 Functional Description The ZSPM4551 is a fully-integrated Li-Ion battery charger IC based on a highly-efficient switching topology configurable for termination voltage, charge current, and additional variables to allow optimum charging conditions ...
Page 13
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries This regulation voltage as well as the 1C charging current can be set to change based on the battery temperature. There are four temperature ranges for which the regulation voltage can be set independently: ...
Page 14
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 2.2. Fault Handling 2.2.1. NFLT Pin Functionality In the event of a battery over-voltage, the battery temperature being outside of the safe charging range, or the full charge timer expiring, charging stops, and the ...
Page 15
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Figure 2.2 Charging State Diagram INITIALIZE STATE NO PRE-CHARGE STATE NO FULL-CHARGE CONSTANT CURRENT (CC) MODE NO NO VBAT = V TERMINATION YES © 2012 Zentrum Mikroelektronik Dresden AG — Rev. 1.00 Data Sheet ...
Page 16
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 2.3. Serial Interface 2 The ZSPM4551 features an I C™ slave interface that offers advanced control and diagnostic features. It supports standard and fast mode data rates and auto-sequencing, and it is compliant to ...
Page 17
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Any number of data bytes can be transferred from the transmitter to receiver between the START and the STOP conditions. Each byte of eight bits is followed by one ACK bit from the receiver. ...
Page 18
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 2.4. Status and Configuration Registers Table 2.1 Register Descriptions (Device Address = 48 Register Address 0 00 STATUS HEX 1 N/A N CONFIG1 HEX 3 03 CONFIG2 HEX 4 04 CONFIG3 HEX ...
Page 19
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Table 2.3 Configuration Register CONFIG1—Address 02 Note: All of the CONFIG1 register bits are READ/WRITE. DATA BIT D7 D6 FIELD NAME PRE_CHRG[1:0] FIELD NAME 1) PRE_CHRG[1:0] Pre-charging configuration 2) V_TERM_0_10[2:0] Voltage termination: 0-10°C configuration ...
Page 20
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Table 2.5 Configuration Register CONFIG3—Address 04 Note: All of the CONFIG3 register bits are READ/WRITE. DATA BIT D7 D6 FIELD NAME MAX_CHRG_CURR_0_10[3:0] FIELD NAME 1) MAX_CHRG_CURR_0_10[3:0] 1) MAX_CHRG_CURR_10_45[3:0] 1) MAX_CHRG_CURR Note: There are separate ...
Page 21
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Table 2.7 Configuration Register CONFIG5—Address 06 Note: All of the CONFIG5 register bits are READ/WRITE. DATA BIT D7 D6 FIELD NAME TOP_END TH FIELD NAME 1) TOP_END Top-off end configuration ...
Page 22
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Table 2.8 Enable Configuration Register CONFIG_ENABLE—Address 11 Note: The reset value for all of the CONFIG_ENABLE register bits is 0. DATA BIT D7 D6 FIELD NAME Not used Not used READ/WRITE R R FIELD ...
Page 23
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 3 Application Circuits 3.1. Typical Application Circuit Figure 3.1 Typical Application Circuit for Charging a Lithium-Ion Battery VDD R PULLUP (optional) 3.2. Selection of External Components Note that the internal compensation ...
Page 24
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 3.2.5. R Output Sensing Resistor SENSE The typical value for the output sensing resistor is 50mΩ. 3.2.6. Pull-up Resistors 2 For proper function of the I C™ interface, the SDA pin must be connected ...
Page 25
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 4.2. Pin-Out Assignments Figure 4.2 ZSPM4551 Pin Assignments 4.3. Pin Description for 16-Pin PQFN ( mm) Table 4.1 Pin Description Pin # Name Function 1 SW Switching Voltage Node 2 VIN Input ...
Page 26
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Pin # Name Function 10 VTH_REF Battery Temperature Sensor Positive Node 11 VIN Input Voltage 12 SCL Clock Input 13 SDA Data Input/Output 14 SW Switching Voltage Node 15 PGND Power GND 16 PGND ...
Page 27
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries 5 Layout Recommendations To maximize the efficiency of this package for application on a single layer or multi-layer PCB, certain guidelines must be followed when laying out this part on the PCB. 5.1. Multi-Layer ...
Page 28
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Figure 5 representation of how the heat can be conducted away from the die using an exposed pad package. Each application will have different requirements and limitations, and therefore the user should ...
Page 29
ZSPM4551 High-Efficiency Charger for Li-Ion Batteries Figure 5.4 Application Using a Single-Layer PCB Important: If the attachment method is NOT implemented correctly, the functionality of the product is NOT guaranteed. Power dissipation capability will be adversely affected if the device ...
Page 30
... Related Documents Document ZSPM4551 Feature Sheet ZSPM4551 Evaluation Kit Description ZSPM4551 Application Note – Li-Ion Battery Charging Applications Visit ZMDI’s website www.zmdi.com or contact your nearest sales office for the latest version of these documents. 8 Document Revision History Revision Date 1.00 December 4, 2012 ...