ADM8845
TYPICAL PERFORMANCE CHARACTERISTICS
35
30LED CURRENT (mA)
25
MATCHING ERROR (%)
04867-0-007
20
15
10
04867-0-004
54.75
6.75
10.758.75
RSET (k )
12.7514.75
2.6
3.03.4
3.84.24.6SUPPLY VOLTAGE (V)
5.05.4
Figure 3. ILED (mA) Current vs. RSET
20.3520.30
LED CURRENT (mA)
Figure 6. ILED (mA) Matching Error (%) vs. Supply Voltage (V),
TA = 25°C and ILED = 20 mA
LED CURRENT (mA)
20.2520.20
20.15
20.1020.0520.00
2.6
04867-0-005
–40
04867-0-00804867-0-009
3.1
4.13.64.6
SUPPLY VOLTAGE (V)
5.1
5.6
40
TEMPERATURE ( C)
80
Figure 4. ILED (mA) vs. Temperature (°C), Six LEDs Enabled
0.3
Figure 7. ILED (mA) Variation over Temperature (°C), VCC = 3.6 V
35
0.2
30
LED CURRENT (mA)
04867-0-006
0.1
25
% ERROR
20
–0.1
15
–0.2
10
–0.3
–40–20
04525
TEMPERATURE ( C)
6585
52.6
3.03.4
3.84.24.6SUPPLY VOLTAGE (V)
5.05.4
Figure 5. ILED Matching (%) over Temperature (°C), VCC = 3.6 V, ILED = 20 mA,
Six LEDs Enabled
Figure 8. ILED (mA) vs. Supply Voltage (V)
Rev. C | Page 6 of 20