S-8353J50MC-IZJ-T2 Seiko, S-8353J50MC-IZJ-T2 Datasheet
S-8353J50MC-IZJ-T2
Related parts for S-8353J50MC-IZJ-T2
S-8353J50MC-IZJ-T2 Summary of contents
Page 1
... During operation: 18.7 µA (3 kHz, typ.) During shutdown: 0.5 µA (max.) Built-in PWM/PFM switching control circuit (S-8354 Series (30 kHz and 50 kHz models (250 kHz models) Coil, capacitor, and diode Can be set in 0.1 V steps between 1.5 and 6.5 V (for V types) or 2.0 and 6.5 V (for other than V of ± ...
Page 2
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series Block Diagrams type (Without Shutdown Function type (With Shutdown Function type CONT 2 CONT Oscillation circuit PWM control, PWM/PFM switching control circuit Soft start built-in Phase ...
Page 3
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR Rev.1.2 _00 Product Name Structure 1. Function List Product name Control system frequency [kHz] S-8353AxxMC PWM S-8353AxxMA PWM S-8353AxxUA PWM S-8353CxxMA PWM S-8353DxxMC PWM S-8353HxxMC PWM S-8353HxxMA PWM S-8353HxxUA PWM S-8353JxxMC PWM ...
Page 4
... Product code Package code MA: SOT-23-3 MC: SOT-23-5 UA: SOT-89-3 Output voltage (Ex. When the output voltage is 1 expressed as 15.) Product type A: Normal products (SOT23-3, SOT-89-3), or With shutdown function products (SOT-23-5 Normal products separate type, DD OUT H: Normal products (SOT23-3, SOT-89-3), ...
Page 5
... S-8353A50MA-IRJ-T2 S-8353A50UA-IRJ-T2 Table 3 S-8353HxxMC Series S-8353JxxMC Series S-8353J20MC-IYF-T2 S-8353J25MC-IYK-T2 S-8353H30MC-IWP-T2 S-8353H31MC-IWQ-T2 S-8353H33MC-IWS-T2 S-8353H38MC-IWX-T2 S-8353H40MC-IWZ-T2 S-8353H45MC-IXE-T2 S-8353H50MC-IXJ-T2 S-8353J50MC-IZJ-T2 Table 4 S-8354AxxMA Series S-8354AxxUA Series S-8354A27MA-JQM-T2 S-8354A30MA-JQP-T2 S-8354A30UA-JQP-T2 S-8354A33MA-JQS-T2 S-8354A33UA-JQS-T2 S-8354A50MA-JRJ-T2 S-8354A50UA-JRJ-T2 S-8354JxxMC Series S-8354J50MC-JZJ-T2 Seiko Instruments Inc. ...
Page 6
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series Pin Configurations SOT-23-3 Top view Figure 4 SOT-23-5 Top view Figure 5 SOT-89-3 Top view Figure 6 6 Pin No. Symbol 1 VOUT Output voltage and IC power supply pin 2 VSS ...
Page 7
... S-835xHxxMC) VDD pin voltage (S-835xDxxMC, S-835xJxxMC) CONT pin voltage CONT pin voltage Power dissipation Operating ambient temperature Storage ambient temperature Caution The absolute maximum ratings are rated values exceeding which the product cloud suffer physical damage. Table 9 Symbol V OUT ...
Page 8
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series Electrical Characteristics 1. 50 kHz Product (A type, D type) Item Symbol Output voltage V OUT Input voltage V IN Operation start voltage V ST1 Oscillation start voltage V ST2 Operation holding voltage V HLD Current consumption 1 ...
Page 9
... OUT(S) OUT Shutdown function built-in type (S-835xAxxMC Series separate type (S-835xDxxMC Series): DD OUT Remarks 1. V specified above is the set output voltage value, and V OUT(S) output voltage separate type: DD OUT Step-up operation is performed from V stabilize the output voltage and oscillation frequency. ...
Page 10
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series 2. 30 kHz Product (C type) Item Symbol Output voltage V OUT Input voltage V IN Operation start voltage V ST1 Oscillation start voltage V ST2 Operation holding voltage V HLD Current consumption 1 I SS1 Current consumption 2 ...
Page 11
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR Rev.1.2 _00 3. 250 kHz Product (H type, J type) Item Symbol Output voltage V OUT Input voltage V IN Operation start voltage V ST1 Oscillation start voltage V ST2 Operation holding voltage V HLD Current consumption 1 I SS1 ...
Page 12
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series External parts Coil: CDRH6D28-220 of Sumida Corporation Diode: MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd. Capacitor: F93 ( µF tantalum type) of Nichicon Corporation =V ×0.6 applied OUT(S) OUT Shutdown function built-in type (S-835xHxxMC Series): ...
Page 13
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR Rev.1.2 _00 Test Circuits 1. 2. *1. Only for S-835xAxxMC Series and S-835xHxxMC Series *2. Only for S-835xDxxMC Series and S-835xJxxMC Series 300Ω CONT VOUT * OFF *2 VDD VSS 0.1 µF Figure 7 CONT VOUT ...
Page 14
... The S-8354 Series operates under PWM control with the pulse width duty changing from (78 % for H type and J type) when the output load current is high. On the other hand, when the output current is low, the S-8354 Series operates under PFM control with the pulse width duty fixed and pulses are skipped according to the load current ...
Page 15
... The above connection diagram will not guarantees successful operation. through evaluation using the actual application to set the constant. Figure 10 The following are the basic equations {(1) through (7)} of the step-up switching regulator. (Refer to Figure 10) Voltage at CONT pin at the moment M1 is turned ON ...
Page 16
... OUT = V − Therefore to reduce the ripple voltage important that the capacitor connected to the output pin has a large capacity and a small ESR follows: (6) − V IN • t consumed result, the pin voltage and the voltage match ...
Page 17
... A higher oscillation frequency allows selection of a lower L value, making the coil smaller. The recommended inductances are 47 to 220 µH for A, C, and D types, and µH for H and J types. Observe the allowable inductor current when choosing an inductor. Exceeding the allowable current of the inductor causes magnetic saturation, resulting in very low efficiency and destruction of the IC chip due to a large current ...
Page 18
... Therefore, select an appropriate capacitor in accordance with the ripple voltage, which increases in the case of a high output voltage or a high load current. The capacitor value should be at least 10 µF. Select capacitor with an appropriate ESR (Equivalent Series Resistance) for stable output voltage. The stable range of voltage for this IC depends on the ESR. Although the inductance (L) is also a factor, an ESR of 30 mΩ ...
Page 19
... Remark The power supply for the IC chip is from the VOUT pin. 2. S-8353AxxMC, S-8353HxxMC, S-8354AxxMC, S-8354HxxMC − Remark The power supply for the IC chip is from the VOUT pin. SD CONT Oscillation circuit IC internal power supply PWM control, PWM/PFM switching control circuit ...
Page 20
... S-8353DxxMC, S-8353JxxMC, S-8354DxxMC, S-8354JxxMC − Remark The power supply for the IC chip is from the VOUT pin. Caution The above connection diagram will not guarantees successful operation. through evaluation using the actual application to set the constant CONT VDD Oscillation ...
Page 21
... Mount external capacitors, diodes, and coils as close as possible to the IC. Especially, mounting the output capacitor (capacitor between VDD pin and VSS pin for V line of the IC close to the IC can enable stable output characteristics impossible recommended to mount and wire a ceramic capacitor of around 0.1 µF close to the IC. ...
Page 22
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series Application Circuits Example of Ceramic Capacitor Application When using a component with a small ESR, such as a ceramic capacitor, for the output capacitance, mount a resistor (R ) equivalent to the ESR in series with the ceramic capacitor ( ...
Page 23
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR Rev.1.2 _00 Examples of Major Temperature Characteristics (Ta=− − SS1 a OUT SS1 [µ -40 - − SS2 a OUT SS2 [µ -40 - − ...
Page 24
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series f − osc a OUT osc 50 [kHz -40 - MaxDuty − OUT 100 90 80 MaxDuty [%] -40 - PFMDuty − S-8354 Series 25 20 PFMDuty 15 [%] 10 5 -40 ...
Page 25
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR Rev.1.2 _00 = 3 vs OUT [ms − 40 − ° ST1 OUT 1.2 1.0 0.8 V ST1 0.6 [V] 0.4 0.2 0.0 − 40 − ° 3 vs OUT OUT 3 ...
Page 26
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series Examples of Major Power Supply Dependence Characteristics (Ta 25° ° ° ° SS1 OUT OSC SS1,2 [µ OSC osc 50 [kHz ...
Page 27
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR Rev.1.2 _00 Output Waveforms 1. S-8353A33 =10 mA OUT Output voltage [0.01 V/div] CONT voltage [1 V/div] t [10 µs/div] =100 mA OUT Output voltage [0.02 V/div] CONT voltage [1 V/div] t [10 µs/div] 2. S-8354H33 = 100 µ ...
Page 28
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series Examples of Transient Response Characteristics (Ta 25° ° ° ° C) (S-8354H33 → → → → 2 Power- [ ms/div) 2. ON/ OFF Pin Response (V ON/OFF (250 kHz, I ...
Page 29
... DC resistance *2. Maximum allowable current *3. Forward voltage *4. Forward current Caution The values shown in the characteristics column of Table 17 above are based on the materials provided by each manufacturer, however, consider the characteristics of the original materials when using the above products. Output voltage Control system [V] 5.0 PWM 5 ...
Page 30
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series 2. Reference Data (1) The following shows the actual (a) Output current vs. Efficiency characteristics and (b) Output current vs. Output voltage characteristics under the conditions of No Table 16. (1) S-8353H50MC (a) Output current vs. Efficiency ...
Page 31
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR Rev.1.2 _00 (4) S-8354A50MC (a) Output current vs. Efficiency 100 0.01 0.1 1 Output current I (5) S-8354A50MC (a) Output current vs. Efficiency 100 0.01 0.1 1 Output current I (6) S-8353A50MC (a) Output current vs. Efficiency 100 0.01 0.1 1 Output current I 5 ...
Page 32
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series (7) S-8353A50MC ( a) Output current vs. E fficiency 100 0.01 0.1 1 Output current I (8) S-8354A33MC ( a) Output current vs. E fficiency 100 0.01 0.1 1 Output current I 32 5.2 5.1 5 4.7 10 100 ...
Page 33
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR Rev.1.2 _00 3. Reference Data (2) The following shows the actual output current vs. ripple voltage characteristics under the conditions of No Table 16. (1) S-8353H50MC Output current vs. Ripple voltage 100 = ...
Page 34
... ULTRA-SMALL PACKAGE PWM CONTROL, PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR S-8353/8354 Series (7) S-8353A50MC Output current vs. ripple voltage 280 240 200 160 120 0.01 0.1 1 Output current I 34 (8) S-8353A33MC Output current vs. ripple voltage 200 160 120 80 40 ...
Page 35
...
Page 36
...
Page 37
...
Page 38
...
Page 39
...
Page 40
...
Page 41
...
Page 42
...
Page 43
...
Page 44
... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of 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 ...