M62211P Просмотр технического описания (PDF) - Renesas Electronics

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M62211P

General Purpose Multi Function DC/DC Converter

Renesas Electronics 

M62211P/FP

2. Setting up TIN

1) Setting up the level

The TIN terminal is shown in Figure a. In order for the level of TIN to satisfy the conditions shown in the table below,

the external circuits shown in Figure b or Figure c should be used when the external voltage level of the input is

high.

100 kΩ

TIN 5

5

5

50 kΩ

3

GND

Figure a

Figure b

Figure c

Items

Symbols

Min

Typ

Max

Unit

TIN "H" level

VTINH

2.2



VCC

V

TIN "L" level

VTINL





1.0

V

2) Setting up frequency

The periodical change of TIN is expected to be +30% to −20%. The fIN is set to approximately 1.5 times fOSC.

fIN = 1.5 • fosc

1

fosc ≈ 1.3 µs + (23 × 103 × Cosc) (Hz)

COSC

TIN

REJ03D0842-0201 Rev.2.01 Nov 14, 2007

Page 7 of 11

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