X40231 Datasheet, PDF (31/36 Pages) Intersil Corporation – Triple Voltage Monitors, POR, 2 kbit EEPROM MEMORY, and Single/Dual DCP

X40231, X40233, X40235, X40237, X40239
POTENTIOMETER CHARACTERISTICS
Limits
Symbol
Parameter
Min. Typ. Max. Units
Test Conditions/Notes
R_TOL
End to End Resistance Tolerance
-20
In a ratiometric circuit, R_TOTAL
+20
%
divides out of the equation and
accuracy is determined by XDCP
resolution.
V_RHx
V_RLx
P_R
R_W
I_W
R_H Terminal Voltage (x = 0,1,2)
R_L Terminal Voltage (x = 0,1,2)
Power Rating⁽¹⁾
DCP Wiper Resistance
Wiper Current
Noise
Absolute Linearity⁽²⁾
Relative Linearity⁽³⁾
R_TOTAL Temperature Coefficient
Ratiometric Temperature
Coefficient
VSS
VSS
-1
-1
200
400
±300
±300
V_CC
VSS
10
5
400
1200
4.4
+1
+1
±30
V
V
mW
mW
Ω
Ω
mA
mV
√(Hz)
mV
√(Hz)
MI⁽⁴⁾
MI⁽⁴⁾
ppm/°C
ppm/°C
ppm/°C
R_L Terminal internally tied to gnd.
R_TOTAL = 10kΩ (DCP0, DCP1)
R_TOTAL = 100kΩ (DCP2)
V_CC = 5 V, V_RHx = V_CC,
V_RLx = VSS (x = 0,1,2),
I_W = 50 uA /500 uA (100/10kΩ).
V_CC = 2.7 V, V_RHx = V_CC,
V_RLx = VSS (x = 0,1,2),
I_W = 27 uA /270 uA (100/10 kΩ).
R_TOTAL = 10kΩ (DCP0, DCP1)
R_TOTAL = 100kΩ (DCP2)
R_w(n)(actual) - R_{w(n)(expected)}
R_w(n+1) - [R_{w(n) + MI}]
R_TOTAL = 10kΩ (DCP0, DCP1)
R_TOTAL = 100kΩ (DCP2)
(Voltage divider configuration)
C_H/C_L/
C_W
t_wr
Potentiometer Capacitances
Wiper Response time
10/10/25
200
pF
See Figure 26.
µs
See Figure 34.
Notes: 1. Power Rating between the wiper terminal RWX(n) and the end terminals RHX V_SS - for ANY tap position n, (x = 0,1,2).
Notes: 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).
Notes: 3. Relative Linearity is a measure of the error in step size between taps = RWx(n+1) - [Rwx(n) + Ml] = ±0.2 Ml (x = 0,1,2)
Notes: 4. 1 Ml = Minimum Increment = RTOT / (Number of taps in DCP - 1).
Notes: 5. Typical values are for T_A = 25°C and nominal supply voltage.
Notes: 6. This parameter is periodically sampled and not 100% tested.
31
FN8115.0
April 11, 2005