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AS5130

Datasheet - Detailed Descr i pti on

7.3 OTP Programming

For programming of the OTP, an additional voltage has to be applied to the pin PROG. It has to be buffered by a fast 100nF capacitor (ceramic)

and a 10µF capacitor. The information to be programmed is set by command 25. The OTP bits 16 to 45 are used for AMS factory trimming and

cannot be overwritten.

Figure 12. OTP Programming Connection

Figure 13. External Circuitry for OTP Programming

Table 11. OTP Programming Parameters

Symbol

Parameter

Min

Max

Unit

Notes

Supply Voltage

5

5.5

V

GND

Ground Level

0

0

V

V_zapp

Programming Voltage

8

8.5

V

At pin PROG

T_zapp

Temperature

0

85

ºC

f_clk

CLK Frequency

100

kHz

At pin DCLK

micro

controller

AS5130

100n

+5V

VDD

CS

DCLK

DIO

PROG

AS5130

C1

I/O

Output

Output

+

8.0 - 8.5V

PROG

GND

C1

C2

100nF

10µF

PROM Cell

maximum

parasitic cable

inductance

L<50nH