S-8533A15AFT-TB-G Seiko Instruments, S-8533A15AFT-TB-G Datasheet
S-8533A15AFT-TB-G
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S-8533A15AFT-TB-G Summary of contents
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... The 8-Pin TSSOP package and high oscillation frequency make the S-8533 ideal as the main power supply for portable devices. Features • Synchronous rectification system realizing high efficiency (typ. 94%) • Use at maximum duty ratio = 100% and use of a battery up to maximum life is possible by using P-channel and N- channel power MOS FETs externally. • Oscillation frequency : 300 kHz typ. ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series Block Diagram Tr VIN PDRV NDRV + CSS SS Remark All the diodes in the figure are parasitic diodes Oscillation circuit PWM control circuit − P.N feed-through prevention circuit + Reference voltage source with soft start ON / OFF Figure 1 Seiko Instruments Inc. Rev.3.0 ...
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... Product Name Structure The output voltage for the S-8533 Series can be selected depending on usage. Refer to “1. Product Name” for the definition of the product name, “2. Package” regarding the package drawings and “3. Product Name List” for the full product names ...
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... S-8533A49AFT-TB-x 5.0 V S-8533A50AFT-TB-x 5.2 V S-8533A52AFT-TB-x 5.5 V S-8533A55AFT-TB-x 6.0 V S-8533A60AFT-TB-x Remark 1. Contact the SII marketing department for the availability of product samples other than those specified above Please select products of environmental code = U for Sn 100%, halogen-free products. 4 Product Name Seiko Instruments Inc. Rev.3.0 _00 ...
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... CSS Soft start capacitor connection pin 5 VSS GND pin 6 NDRV External N-channel connection pin 7 PDRV External P-channel connection pin 8 VIN IC power supply pin *1. The NC pin is electrically open. Connection of this pin to VIN or VSS is allowed. Seiko Instruments Inc. S-8533 Series Pin Description 5 ...
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... Board size : (2) Board name : JEDEC STANDARD51-7 Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. (1) When mounted on board 800 ...
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... / OUT OUT OUT Sumida Corporation Nichicon Corporation Sanyo Electric Co., Ltd. CPH6303 (V Sanyo Electric Co., Ltd. CPH6403 (V 4700 pF Seiko Instruments Inc. S-8533 Series = 2.7 V) (Ta = 25°C unless otherwise specified) IN Min. Typ. Max OUT(S) OUT(S) V OUT(S) × 0.98 × 1.02 − 2.7 16.0 − ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series Measurement Circuits 1. 0.1 μF A CSS 4700 pF A ON/OFF 2. 0.1 μ F93 22 μF × 3 4700 pF 3. 0.1 μ F93 22 μF 4700 pF 8 VIN PDRV VOUT NDRV VSS Figure 4 1 kΩ VIN PDRV CSS ...
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... Both of these effects constitute inherent drawbacks to those converters. In the S-8533 Series, the pulse width varies in the range from 0 to 100% according to the load current, yet the ripple voltage produced by the switching can easily be eliminated by a filter since the switching frequency is always constant ...
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... The ON/OFF pin is configured as shown in Figure 8. Since pull-up or pull-down is not performed internally, operation where the ON/OFF pin floating state should be avoided. Application of a voltage of 0 the pin should also be avoided lest the current consumption increases. When the ON/OFF pin is not used, it should be connected to the VIN pin ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER Rev.3.0 _00 Though the conditions mentioned above are required to prevent back-flow current, they are guidelines. Check the validity by measuring the prototype or the actual device Coil current under no load I L 109 OUT −109 mA Figure 10 Example for No Back-Flow Current ...
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... As the L value is increased, the dissipation in the switching transistor due to I reaches the maximum at a certain L value. As the L value is made even larger, the efficiency degrades since the dissipation due to the series resistance of the coil increases inductance of 22 μH is recommended for the S-8533 Series. ...
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... Pay attention to dissipate heat from the P-channel MOS FET. Efficiency data using Sanyo Electric Co., Ltd. CPH6303, CPH6403, and Vishay Siliconix Si3441DV and Si3442DV for applications with an input voltage range less is included for reference. For applications with an input voltage range more, efficiency data using Sanyo Electric Co., Ltd. CPH6302, CHP6402, and Vishay Siliconix Si3454DV and Si3455DV is included. Refer to “ ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series Standard Circuit • Using MOS FET OFF Caution The above connection diagram does not guarantee correct operation. Perform sufficient evaluation using the actual application to set the constants. 14 Nch Power Pch Power MOS FET ...
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... Because these largely depend on the coil, the capacitor and impedance of power supply used, fully check them using an actually mounted model. • If the input voltage is high and output current is low, pulses with a low duty ratio may be output, and then the duty ratio may be 0% for several clocks. ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series Characteristics (Typical Data) 1. Examples of Major Characteristics (1) Current Consumption 1 (I SS1 100 SS1 50 (μ −40° (3) PDRV Pin Output Current “H” (I Input Voltage ( −40° PDRVH (mA (5) NDRV Pin Output Current “H” (I ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER Rev.3.0 _00 (9) Soft-Start Time (t ) vs. Input Voltage ( −40° (ms 25° (V) IN (10) Output Voltage (V ) vs. Input Voltage (V OUT (1 S-8533A15AFT) 1. 100 mA OUT 1. 0.1 mA OUT 1.51 V OUT 1.50 (V) 1.49 1.48 1. (V) IN (12) Output Voltage (V ) vs. Input Voltage (V OUT (5 ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series 2. Examples of Transient Response Characteristics : 0 V → → 9 (1) Power- → 2.7 V) S-8533A15AFT ( Input voltage (2.5 V/div Output voltage (1 V/div ms/div → 5.0 V) S-8533A33AFT ( Input voltage (2.5 V/div Output voltage (1 V/div ms/div → ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER Rev.3.0 _00 (2) ON/OFF Pin Response (V ON/OFF S-8533A15AFT ( ON/OFF pin voltage (1 V/div Output voltage (1 V/div ms/div) S-8533A33AFT ( ON/OFF pin voltage (1 V/div Output voltage (1 V/div ms/div) S-8533A50AFT ( ON/OFF pin voltage (1 V/div 4.5 V Output voltage (1 ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series : 0.1 mA → 500 mA, 500 mA → 0.1 mA, V (3) Load Fluctuations (I OUT S-8533A15AFT ( 500 mA Output current 0.1 mA Output voltage (0.1 V/div) t (0.1 ms/div) S-8533A33AFT ( 500 mA Output current 0.1 mA Output voltage (0.1 V/div ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER Rev.3.0 _00 (4) Input Voltage Fluctuations (V S-8533A15AFT ( mA) OUT 10 V Input voltage (2.5 V/div Output voltage (0.1 V/div) t (0.5 ms/div) S-8533A33AFT ( mA) OUT 10 V Input voltage (2.5 V/div Output voltage (0.1 V/div) t (0.5 ms/div) S-8533A50AFT ( mA) OUT 10 V Input voltage (2 ...
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... S-8533 Series Reference Data Reference data are intended for use in selecting peripheral parts to the IC. The information therefore provides characteristic data in which external parts are selected with a view of wide variety of IC applications. All data show typical values. 1. External Parts for Reference Data Table 4 External Parts List for Output Current vs ...
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... External transistor CPH6402 (N-channel FET) Si3442DV Vishay Silliconix Si3454DV Caution The value of each characteristic in Table 6 depends on the materials prepared by each manufacturer, however, confirm the specifications by referring to respective materials when using any of the above. Transistor Transistor Inductor P-channel N-channel CPH6303 CPH6403 Si3441DV ...
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... Output current (mA) (5) S-8533A33AFT (CPH6302/CPH6402) 100 4. 100 Output current (mA) (7) S-8533A50AFT (CPH6302/CPH6402) 100 100 Output current (mA vs. efficiency (η) characteristics when the S-8533 Series is used OUT (2) S-8533A15AFT (Si3441DV/Si3442DV) 100 5 1000 10000 (4) S-8533A33AFT (Si3441DV/Si3442DV) 100 1000 10000 1 (6) S-8533A33AFT (Si3454DV/Si3455DV) 100 ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER Rev.3.0 _00 (9) S-8533A15AFT (CPH6303/CPH6403) 100 2 5 100 Output current (mA) (11) S-8533A33AFT (CPH6303/CPH6403) 100 = 100 (mA) Output current (13) S-8533A33AFT (CPH6302/CPH6402) 100 100 Output current (mA) (15) S-8533A50AFT (CPH6302/CPH6402) 100 100 (mA) Output current (10) S-8533A15AFT (Si3441DV/Si3442DV) ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series (17) S-8533A15AFT (CPH6303/CPH6403) 100 100 (mA) Output current (19) S-8533A33AFT (CPH6303/CPH6403) 100 100 (mA) Output current (21) S-8533A33AFT (CPH6302/CPH6402) 100 = 4. 100 Output current (mA) (23) S-8533A50AFT (CPH6302/CPH6402) 100 = 6 7 100 (mA) Output current 26 (18) S-8533A15AFT (Si3441DV/Si3442DV) 100 ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER Rev.3.0 _00 (25) S-8533A33AFT (CPH6303/CPH6403) 100 100 (mA) Output current (26) S-8533A33AFT (CPH6302/CPH6402) 100 1000 10000 1 Seiko Instruments Inc. S-8533 Series 100 1000 10000 (mA) Output current 27 ...
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... STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series 3. Output Current (I ) vs. Ripple Voltage (V OUT The following shows the actual output current (I used under conditions (27) to (34) in Table 5. (27) S-8533A15AFT (CPH6303/CPH6403 2 100 Output current (mA) (29) S-8533A33AFT (CPH6303/CPH6403 4. 4 100 Output current (mA) ...
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... Seiko Instruments Inc. is strictly prohibited. • The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc. ...