Datasheet MAX253 (Maxim) - 5

HerstellerMaxim
BeschreibungTransformer Driver for Isolated RS-485 Interface
Seiten / Seite18 / 5 — Pin Configuration. Pin Description. PIN. NAME. FUNCTION. DIP/SO/. MAX
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DokumentenspracheEnglisch

Pin Configuration. Pin Description. PIN. NAME. FUNCTION. DIP/SO/. MAX

Pin Configuration Pin Description PIN NAME FUNCTION DIP/SO/ MAX

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MAX253 Transformer Driver for Isolated RS-485 Interface
Pin Configuration Pin Description PIN NAME FUNCTION
TOP VIEW 1 D1 Open drain of N-channel transformer drive 1. Ground. Connect both GND1 and GND2 2 GND1 to ground. Frequency switch. If FS = VCC or open,
+
3 FS switch frequency = 350kHz; if V D1 FS = 0V, 1 8 D2 switch frequency = 200kHz. GND1 2 7 GND2 Shutdown. Ground for normal operation, MAX253 4 SD FS 3 connect high for shutdown. 6 VCC SD 4 5 N.C. Not internally connected. 5 N.C. 6 VCC 5V supply voltage.
DIP/SO/
μ
MAX
Ground. Connect both GND1 and GND2 7 GND2 to ground. 8 D2 Open drain of N-channel transformer drive 2. www.maximintegrated.com Maxim Integrated | 5