PB137 Positive voltage regulator for battery charger Features ■ Reverse leakage current less than 10 µA ■ Three terminal fixed version (13.7 V) output current in excess of 1.5 A ■ Available in ± 1 % (AC) selection at 25 °C ■ Typical dropout voltage 2 V ■ Temperature range 0 to 150 °C Description TO-220 The PB137 is a positive voltage regulator able to provide 1.5 A, at VO = 13.7 V and is intended as a charger for lead acid battery. The main feature is a reverse leakage current (Max 10 µA at TJ = 0 to 40 °C VI = floating and VO = 13.7 V). It is available in TO-220 and it employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat-sinking is provided, they can deliver over 1 A output current. Table 1. Device summary Order code Package Output voltage PB137ACV TO-220 1.5 V November 2010 Doc ID 6278 Rev 5 1/14 www.st.com 14 Contents PB137 Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2/14 Doc ID 6278 Rev 5 PB137 Diagram 1 Diagram Figure 1. Schematic diagram Doc ID 6278 Rev 5 3/14 Pin configuration 2 Pin configuration Figure 2. Pin connections (top view) 4/14 PB137 Doc ID 6278 Rev 5 PB137 Application 3 Application Figure 3. Application circuit Doc ID 6278 Rev 5 5/14 Maximum ratings PB137 4 Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit 40 V VI DC input voltage IO Output current Internally limited mA PTOT Power dissipation Internally limited mW TSTG Storage temperature range - 65 to 150 °C TOP Operating junction temperature range 0 to 150 °C Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Table 3. Thermal data Symbol 6/14 Parameter Value Unit RthJC Thermal resistance junction-case 5 °C/W RthJA Thermal resistance junction-ambient 50 °C/W Doc ID 6278 Rev 5 PB137 5 Electrical characteristics Electrical characteristics Refer to the test circuits, VI = 18 V, IO = 500 mA, TJ = 0 to 150 °C, CO = 10 µF unless otherwise specified. Table 4. Symbol Electrical characteristics Parameter Test conditions Min. Typ. Max. 13.56 13.7 13.84 13.43 13.7 13.97 Unit VO Output voltage ΔVO Line regulation VI = 16 to 28.7 V, TJ = 25 °C 60 150 mV ΔVO Load regulation IO = 5 to 1500 mA, TJ = 25 °C 65 100 mV Quiescent current TJ = 25 °C 4 8 mA Id TJ = 25 °C V ΔId Delta quiescent current vs. VI = 16 to 28.7 V line 4 mA ΔId Delta quiescent current vs. IO = 5 to 1000 mA load 1.2 mA Vd Dropout voltage IO = 1 A, TJ = 25 °C 2.1 2.6 V Isc Short circuit current VI - VO = 5 V, TJ = 25 °C 2.2 A eN Output noise voltage B = 10 Hz to 10 kHz, TJ = 25 °C 300 µVrms SVR Supply voltage rejection f = 120 Hz, TJ = 25 °C 58 dB IREV Reverse leakage current VO = 13.7 V, VI = floating, TJ = 0 to 40 °C 0.1 Long term stability TJ = 125 °C, 1000 Hrs S Doc ID 6278 Rev 5 10 µA 0.5 % 7/14 Typical characteristics PB137 6 Typical characteristics Figure 4. TJ = 25°C. Output voltage vs. temperature Figure 5. Output voltage vs. input voltage Figure 6. Output voltage vs. output current Figure 7. Load regulation vs. temperature Figure 8. Line regulation vs. temperature Figure 9. Dropout voltage vs. temperature 8/14 Doc ID 6278 Rev 5 PB137 Typical characteristics Figure 10. Dropout voltage vs. output current Figure 11. Short circuit current vs. dropout voltage Figure 12. Short circuit current vs. temperature Figure 13. Reverse leakage current vs. temperature Figure 14. Quiescent current vs. temperature Figure 15. Quiescent current vs. output current Doc ID 6278 Rev 5 9/14 Typical characteristics PB137 Figure 16. Quiescent current vs. input voltage Figure 17. Thermal protection Figure 18. Supply voltage rejection vs. output Figure 19. Supply voltage rejection vs. current temperature Figure 20. Line transient response Figure 21. Load transient response VI = 17 to 28.4 V, IO = 0.5 A, CO = 10 µF VI = 18 V, IO = 5 to 1.5 A, CI = 1 µF, CO = 10 µF 10/14 Doc ID 6278 Rev 5 PB137 7 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Doc ID 6278 Rev 5 11/14 Package mechanical data PB137 TO-220 mechanical data Dim. mm. Min. Typ. inch. Max. Min. Typ. Max. A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 D1 1.27 0.107 0.050 E 0.49 0.70 0.019 0.027 F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.067 F2 1.14 1.70 0.044 0.067 G 4.95 5.15 0.194 0.203 G1 2.4 2.7 0.094 0.106 H2 10.0 10.40 0.393 0.409 14.0 0.511 L2 L4 16.4 13.0 0.645 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.2 6.6 0.244 0.260 L9 3.5 3.93 0.137 0.154 DIA. 3.75 3.85 0.147 0.151 P011C 12/14 Doc ID 6278 Rev 5 PB137 Revision history 8 Revision history Table 5. Document revision history Date Revision 21-Jun-2004 4 18-Nov-2010 5 Changes Modified: RthJC value for TO-220 Table 3 on page 6. Doc ID 6278 Rev 5 13/14 PB137 Please Read Carefully: 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. 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