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MAX16821A Datasheet, PDF (4/25 Pages) Maxim Integrated Products – High-Power Synchronous HBLED Drivers with Rapid Current Pulsing
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High-Power Synchronous HBLED
Drivers with Rapid Current Pulsing
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V, VDD = VCC, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
LED CURRENT SIGNAL DIFFERENTIAL VOLTAGE AMPLIFIER (DIFF)
Common-Mode Voltage Range
DIFF Output Voltage
Input Offset Voltage
VCMR(DIFF)
VCM
VOS(DIFF)
VSENSE+ = VSENSE- = 0V
MAX16821A
MAX16821B/MAX16821C
MAX16821A
Amplifier Voltage Gain
AV(DIFF)
MAX16821B
MAX16821C
3dB Bandwidth
SENSE+ to SENSE- Input
Resistance
MAX16821A, CDIFF = 20pF
f3dB
MAX16821B, CDIFF = 20pF
MAX16821C, CDIFF = 20pF
MAX16821A
RVS
MAX16821B
MAX16821C
OUTV AMPLIFIER
Gain-Bandwidth Product
3dB Bandwidth
Output Sink Current
VOUTV = 2V
VOUTV = 2V
Output Source Current
Maximum Load Capacitance
OUTV to (CSP - CSN) Transfer
Function
4mV ≤ CSP - CSN ≤ 32mV
Input Offset Voltage
VOLTAGE-ERROR AMPLIFIER (EAOUT)
Open-Loop Gain
AVOLEA
Unity-Gain Bandwidth
fGBW
EAN Input Bias Current
IB(EA)
VEAN = 2V
Error Amplifier Output Clamping
Voltage
VCLAMP(EA) With respect to VCM
INPUTS (MODE AND OVI)
MODE Input-Voltage High
MODE Input-Voltage Low
MODE Pulldown Current
OVI Trip Threshold
OVI Hysteresis
OVI Input Bias Current
OVPTH
OVIHYS
IOVI
VOVI = 1V
MIN TYP MAX
0
-3.7
-1.5
0.992
5.9
18.5
50
30
10
0.6
1
6
20
1.7
1600
550
100
60
20
1.0
+3.7
+1.5
1.008
6.1
21.5
4
1
30
80
50
132.5 135 137.7
1
70
3
-0.2 +0.03 +0.2
905 930 940
2
4
1.244
5
1.276
200
0.2
0.8
6
1.308
UNITS
V
V
mV
V/V
MHz
kHz
kΩ
MHz
MHz
µA
µA
pF
V/V
mV
dB
MHz
µA
mV
V
V
µA
V
mV
µA
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