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STW41411T bảng dữ liệu(PDF) 6 Page - STMicroelectronics |
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STW41411T bảng dữ liệu(HTML) 6 Page - STMicroelectronics |
6 / 30 page STw4141 pinout STw4141 6/30 1 STw4141 pinout Figure 1. Pin assignment in TFBGA 3x3 mm - 16 bumps 0.5 mm pitch PGND PVDD MODE/ SYNC FB1 VLX1 STATE AUTO FB2 VLX2 VSEL VDD VOUT1 VOUT2 GND EN A B C D 1 2 3 4 T_MODE PGND PVDD MODE/ SYNC FB1 VLX1 STATE AUTO FB2 VLX2 VSEL VDD VOUT1 VOUT2 GND EN 1 2 3 4 A B C D T_MODE Top view Bottom view 12 3 4 A B C D A B C D 43 2 1 Table 1. STw4141 pin description Pin Symbol Description A1 PGND Power ground B1 PVDD Power supply voltage C1 MODE/SYNC MODE/SYNC = High to forced PWM mode MODE/SYNC = Low to forced PFM mode MODE/SYNC = 600 kHz - 1.5 MHz external clock synchronization in PWM D1 FB1 Feedback 1 A2 VLX1 External inductor connection pin 1 B2 STATE Output STATE pin allow the user to monitor operation mode of the product STATE = High - PFM mode STATE = Low - PWM mode If not used must be left unconnected. C2 AUTO PWM/PFM automatic switch control pin AUTO = High - PWM/PFM mode automatic switch ENABLED AUTO = Low - PWM/PFM mode automatic switch DISABLED PWM/PFM mode controlled by MODE/SYNC pin) D2 FB2 Feedback 2 A3 VLX2 External inductor connection pin 2 B3 T_MODE Input signal for test mode selection. This pin must be connected to GND. C3 VSEL Voltage selection input VSEL = High - VOUT1 = 1.8V, VOUT2 = 1.2V (valid for STA1) VSEL = Low - VOUT1 = 1.8V, VOUT2 = 1.0V (valid for STA1) (For other voltage options see Table 1: STw4141 ordering information) D3 VDD Signal supply voltage A4 VOUT1 Output voltage 1 |
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