X9520 datasheet(21/29 Pages) RENESAS

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X9520

FN8206 Rev 2.00

Page 21 of 29

August 20, 2007

Potentiometer Characteristics

SYMBOL

PARAMETER

TEST CONDITIONS/NOTES

LIMITS

MIN

TYP

MAX

UNITS

RTOL

End to End Resistance Tolerance

-20

+20

VRHx

RH Terminal Voltage (x = 0,1,2)

Vss

VCC

VRLx

RL Terminal Voltage (x = 0,1,2)

Vss

VCC

Power Rating (1) (6)

RTOTAL = 10kDCP0, DCP1)

RTOTAL = 100kDCP2)

DCP Wiper Resistance

IW = 1mA, VCC = 5 V, VRHx =VCC,

VRLx = Vss (x = 0,1,2).

200

400



IW = 1mA, VCC = 2.7 V, VRHx = VCC,

VRLx = Vss (x = 0,1,2)

400

1200



Wiper Current (6)

4.4

Noise

RTOTAL = 10kDCP0, DCP1)

mV/

(Hz)

RTOTAL = 100kDCP2)

mV/

(Hz)

Absolute Linearity (2)

Rw(n)(actual) - Rw(n)(expected)

-1

MI(4)

Relative Linearity (3)

Rw(n+1) - [Rw(n)+MI]-1

MI(4)

RTOTAL Temperature Coefficient

RTOTAL = 10kDCP0, DCP1)

±300

ppm/°C

RTOTAL = 100kDCP2)

±300

ppm/°C

CH/CL/CW

Potentiometer Capacitances (6)

See Figure 26.

10/10/25

twr

Wiper Response time (6)

See Figure 34.

200

s

NOTES:

1. Power Rating between the wiper terminal RWX(n) and the end terminals RHX or RLX - for ANY tap position n, (x = 0,1,2).

2. Absolute Linearity is utilized to determine actual wiper resistance versus, expected resistance = (Rwx(n)(actual) - Rwx(n)(expected)) = ±1 Ml

Maximum (x = 0,1,2).

3. Relative Linearity is a measure of the error in step size between taps = RWx(n+1) - [Rwx(n) + Ml] = ±1 Ml (x = 0,1,2)

4. 1 Ml = Minimum Increment = RTOT/(Number of taps in DCP - 1).

5. Typical values are for TA = 25°C and nominal supply voltage.

6. This parameter is periodically sampled and not 100% tested.

VTRIPX (x = 1,2,3) Programming Parameters (See Figure 33)

PARAMETER

DESCRIPTION

MIN

TYP

MAX

UNITS

tVPS

VTRIPx Program Enable Voltage Setup time

s

tVPH

VTRIPx Program Enable Voltage Hold time

s

tTSU

VTRIPx Setup time

s

tTHD

VTRIPx Hold (stable) time

s

tVPO

VTRIPx Program Enable Voltage Off time (Between successive adjustments)

twc

VTRIPx Write Cycle time

510

Programming Voltage

Vta

VTRIPx Program Voltage accuracy (Programmed at 25°C.)

-100

+100

Vtv

VTRIP Program variation after programming (-40 - 85°C). (Programmed at 25°C.)

-25

+10

+25

NOTE: The above parameters are not 100% tested.

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