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Features

Powers ringing SLICs Overcurrent protection Surface mount design Superior transient response Non-isolated outputs Ultraquiet outputs 10 REN capability

Compact design Simplifies assembly & test Fast time-to-market Remote inhibit Eliminates ALEL caps Patent 6,195,273
SPT5504C SLIC Power Module
Input Specifications
Voltage ...................................4.75 VDC Min. 5 VDC Nom. 5.25 VDC Max. Current No Load..............................120 mA Nom. 150 mA Max. IBAT1 = 100 mA .................1920 mA Nom. 1980 mA Max. IBAT2 = 100 mA ...................750 mA Nom. 780 mA Max. Disabled ................................20 mA Max. Remote Enable Low = Enable .................0.4 VDC Max. (open = enable) High = Disable ...................4.0 VDC Min. (source 1 mA)
General Information
The SPT5504C is a member of Bourns Switch Power SLIC Power module family. The output voltages provide low-noise operation for very quiet off-hook conditions and on-hook transmissions. The SPT5504C is capable of 7 W total output power, with up to 100 mA available from each output rail. The SPT5504C's easy to use surface mount design and compact footprint minimize the board space dedicated to power (less than 1.4 in2). Its robust design ensures reliable power and eliminates the need for Aluminum Electrolytic capacitors. By integrating the entire power solution, the OEM customer saves time and money in engineering, debugging, purchasing hardto-source components, test and inventory.
Output Decoupling
Although not specifically required for proper/specified operation of the SPT5504C, external decoupling capacitors may be employed to reduce noise and interaction with adjacent circuits. Output decoupling can be achieved by placing 0.1 f ceramic caps at the load. Note that larger cap values can substantially increase the start-up currents drawn from the 5 V source.
Fault Protection
F1 F1 may be used in distributed systems to isolate single-board failures. should be 2.5 A, i2t 0.2 A2 sec, R 25 m.
Output Specifications
Power ......................................................7 W VBAT1 Voltage .................................... -74 V Min. -72 V Nom. -70 V Max. Current ..................................0 to 100 mA 10 REN (2 s on, 4 s off) 120 mA Min. (trip < 150 ms) Ripple Voltage ...........................15 mV Nom. 40 mV Max. (IBAT1 = 50 mA) Temperature Coefficient (T -25 C) ...................................... -25 mV/C Nom. -40 mV/C Max. VBAT2 Voltage (Two 50 mA Outputs) ................................................ -25 V Min. -24 V Nom. -23 V Max. Current ..................................0 to 100 mA Ripple Voltage ..........................5 mA Nom. 20 mA Max. (IBAT2 = 50 mA) Temperature Coefficient (T -25 C) .......................................1.2 mV/C Nom. 4 mV/C Max. VBAT2 Load Regulation (IBAT2 = 0 to 50 mA) ......................................0.5 mV/mA Nom. 1 mV/mA Max. VBAT2 Setpoint Accuracy .................................................2 % Nom. 4 % Max. Cross Regulation (IBAT1 = 0 to 100 mA) ......................................0.1 mV/mA Nom. 0.2 mV/mA Max.
Input Decoupling
Local input decoupling is recommended to reduce the apparent source impedance to the SPT5504C. C2 0.1 F, X7R ceramic C1 100 F, 10 V, low ESR tantalum (AVX TPS series or Kemet T495 series).
Product Dimensions
31.8 (1.250) 2.54 14 PLCS. (0.100) 2.54 (0.100) 14 PLCS.
1
16
24.38 (0.96) 3.30 4 PLCS. (0.13)
8
9
36.1 (1.42)
1.0 TYP. (0.040) 11.18 MAX. (0.44) DIMENSIONS = MILLIMETERS (INCHES) TOLERANCES = (.xx) = .25 (.01) (.xxx) = .13 (.005)
2.54 TYP. (0.100)
General Specifications
MBTF .................................2,100 kHrs Nom. Bellcore TR332 (40 C) Operating Temperature 0 LFM..................................-40 to +85 C Storage Temperature...........-55 to +125 C
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
SPT5504C SLIC Power Module
Product Schematic
1 F1 2 3 +5 Vin 4 6 7 8 GND INHIBIT NC 16 14
VBAT1
-72 V, 100 mA -24 V, 50 mA -24 V, 50 mA
C1 5V <3 A
C2
13
VBAT2_a 12 VBAT2_b 11 10 GND 9
RETURN RECOMMEND SOLID GROUND PLANE ON COMPONENT SIDE OF MOTHER BOARD UNDER SPT5504C.
PIN DESCRIPTIONS: 5 Vin 4.75-5.25 VDC input, <3 A VBAT1 -72 V, 100 mA output VBAT2 -24 V, 2 x 50 mA outputs GND Common input and output returns Inhibit Logic level remote inhibit (>4.0 V, source 1 mA). Enabled when open or <0.4 V. NC No connection
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www.bourns.com
COPYRIGHT(c) 2005, BOURNS, INC. LITHO IN U.S.A., REV. 1/05

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