STBC08 STMicroelectronics, STBC08 Datasheet
STBC08
Available stocks
Related parts for STBC08
STBC08 Summary of contents
Page 1
... The charge cycle is automatically terminated when the current flowing to the battery is 1/10 of the programmed value. If the external adaptor is removed, the STBC08 turns off and a 2µA current can flow from the battery to the device. The device can be put into Shutdown Mode, reducing the supply current to 25µ ...
Page 2
... Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.1 Charge cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.2 V Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 CC 6.3 Power ON pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.4 CHRG pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.5 PROG pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.6 Programming charge current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.7 BAT pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.8 Charge termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.9 Automatic recharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.10 Soft start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.11 Thermal regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.12 Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.13 Stability considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2/17 STBC08 ...
Page 3
... STBC08 1 Block diagram Figure 1. Block diagram Block diagram 3/17 ...
Page 4
... Open Drain. When the STBC08 detects an undervoltage lockout condition or when the 2 POWER ON external adaptor provide an input voltage higher than 7.2V or less than battery voltage, POWER ON goes in high impedance state Open Drain. This pin goes in low impedance when the STBC08 is in precharge or charge 3 CHRG mode 4 ...
Page 5
... STBC08 3 Maximum ratings Table 2. Absolute maximum ratings Symbol V Input supply voltage cc V BAT pin voltage BAT V PROG pin voltage PROG V CHRG pin voltage CHRG V POWER ON pin voltage POWER-OM I BAT pin current BAT I PROG pin current PROG BAT short circuit duration P Power dissipation ...
Page 6
... BAT 4.158 4.2 4.242 90 100 110 465 500 535 0 -2.5 -6 ±1 ±2 ±1 ±2 =25° 2.8 2.9 3.0 70 100 130 3.65 3.80 3.95 50 180 300 1.15 1.21 1.30 0.85 0.95 1. 120 0.1 0.1 0.93 1.0 1.07 0.35 0.6 1 0.35 0.6 STBC08 Unit V µ µA µA µ mA/ µA V ...
Page 7
... Supply current includes PROG pin current but not any current delivered to the battery through the V BAT 2 The STBC08 was tested using a battery simulator and an output capacitor value of 4.7µ expressed as a fraction of measured full charge current with indicated PROG TERM resistor ...
Page 8
... Typical performance characteristics 5 Typical performance characteristics Figure Supply voltage BAT Figure temperature BAT Figure temperature BAT PROG 8/17 Figure BAT CC Figure temperature PROG Figure 9. Recharge battery threshold voltage vs. temperature STBC08 ...
Page 9
... STBC08 Figure 10 BAT PROG CC Figure 12 temperature (CHRG pin CHRG output low voltage) Figure 14. Power FET “ON” resistance Typical performance characteristics Figure 11 BAT BAT Figure 13 BAT PROG 9/17 ...
Page 10
... Application information 6 Application information The STBC08 uses an internal P-Channel MOSFET to work in constant current and constant voltage method able to provide up to 800mA with a final regulated output voltage of ± 4. full temperature range. No blocking diode and sensing resistor are required also possible to use an USB port as power supply voltage. ...
Page 11
... STBC08 -00 is Precharge Mode (Trickle charge mode) or Charge Mode. V and R is connected to the PROG pin. PROG - 01 is STANBY MODE (charge completed) or SHUTDOWN MODE ( supply is not sufficient. 6.5 PROG pin Charge Current Program, Charge Current Monitor and Shutdown Pin. The charge current is programmed by connecting a 1% resistor, R constant current, the value of voltage on this pin is 1 ...
Page 12
... Stability considerations The STBC08 contains two control loops: constant voltage and constant current. The constant-voltage loop is stable without any compensation when a battery is connected with low impedance leads. Excessive lead length, however, may add enough series inductance to require a bypass capacitor of at least 1µ ...
Page 13
... STBC08 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label ...
Page 14
... A3 b 0.23 D 2.90 D2 2.23 E 2. 0.30 14/17 DFN6 (3x3) MECHANICAL DATA mm. TYP MAX. 0.90 1.00 0.02 0.05 0.20 0.30 0.38 3.00 3.10 2.38 2.48 3.00 3.10 1.65 1.75 0.95 0.40 0.50 inch MIN. TYP. MAX. 0.031 0.035 0.039 0 0.001 0.002 0.008 0.009 0.012 0.015 0.114 0.118 0.122 0.088 0.094 0.098 0.114 0.118 0.122 0.059 0.065 0.069 0.037 0.012 0.016 0.020 7946637A STBC08 ...
Page 15
... STBC08 Tape & Reel QFNxx/DFNxx (3x3) MECHANICAL DATA DIM. MIN 12 mm. TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 18.4 3.3 3.3 1 Package mechanical data inch TYP. MAX. 12.992 0.519 0.724 0.130 0.130 0.043 0.157 0.315 15/17 ...
Page 16
... Revision history 8 Revision history Table 6. Revision history Date Revision 04-Sep-2006 1 16/17 Initial release. Changes STBC08 ...
Page 17
... STBC08 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...