MAX15031 Datasheet, PDF (3/16 Pages) Maxim Integrated Products – 80V, 300mW Boost Converter and Current Monitor for APD Bias Applications

80V, 300mW Boost Converter and Current
Monitor for APD Bias Applications
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = V_PWR = 3.3V. V_SHDN = 3.3V. C_IN = C_PWR = 10µF. C_CP = 10nF, V_CNTRL = V_IN. V_RLIM = 0V. PGND = SGND = 0V. V_BIAS = 40V.
APD = unconnected. CLAMP = unconnected. ILIM = unconnected, MOUT = unconnected. T_A = T_J = -40°C to +125°C, unless other-
wise noted. Typical values are at T_A = +25°C.) (Note 2)
PARAMETER
Load Regulation
Soft-Start Duration
Soft-Start Steps
CONTROL INPUT (CNTRL)
SYMBOL
CONDITIONS
0 ≤ I_LOAD ≤ 4.5mA
(0.25 x I_{LIM_LX}) to I_{LIM_LX}
MIN TYP MAX UNITS
1
%
8
ms
32
Steps
Maximum Control Input Voltage
Range
FB set point is regulated to V_CNTRL
1.25
V
CURRENT MONITOR
Bias Voltage Range
Bias Quiescent Current
Voltage Drop
Dynamic Output Resistance at
MOUT
MOUT Output Leakage
V_BIAS
I_BIAS
V_DROP
R_MOUT
I_APD = 500nA
I_APD = 2mA
I_APD = 2mA, V_DROP = V_BIAS - V_APD
I_APD = 500nA
I_APD = 2.5mA
APD is unconnected
10
76
V
100
µA
3.2
mA
1
V
1
GΩ
890
MΩ
1
nA
Output Clamp Voltage
Output Clamp Leakage Current
Output-Voltage Range
Current Gain
Power-Supply Rejection Ratio
APD Input Current Limit
Current-Limit Adjustment Range
Power-Up Settling Time
LOGIC INPUTS/OUTPUTS
SHDN Input-Voltage Low
SHDN Input-Voltage High
ILIM Output-Voltage Low
ILIM Output Leakage Current
THERMAL PROTECTION
Thermal Shutdown
Thermal Shutdown Hysteresis
V_MOUT - _{Forward diode current = 1mA}
V_CLAMP
V_BIAS = V_CLAMP = 76V
V_MOUT
10V ≤ V_BIAS ≤ 76V, 0 ≤ I_APD ≤ 1mA, CLAMP
is unconnected
I_MOUT/I_APD
PSRR
I_{LIM_APD}
t_S
I_APD = 500nA
I_APD = 2mA
(∆I_MOUT/I_MOUT)/∆V_BIAS,
V_BIAS = 10V to 76V
V_APD = 35V, R_LIM = 3.3kΩ
12.45kΩ ≥ R_LIM ≥ 2.5kΩ
I_MOUT settles to within
0.1%, 10nF connected
from APD to ground
I_APD = 500nA
I_APD = 1mA
I_APD = 500nA
I_APD = 2.5mA
0.5
V_BIAS -
1V
0.095
0.965
-1000
-250
3.15
1
0.73
1
0.1
0.1
+300
+24
3.75
7.5
90
0.95
0.11
0.1035
+1500
+250
4.35
5
V
nA
V
ppm/V
mA
mA
ms
µs
V_IL
V_IH
V_OL
I_LIM = 2mA
I_OH
V_ILIM = 11V
Temperature rising
0.8
V
2.4
V
0.3
V
1
µA
+160
°C
10
°C
Note 2: All minimum/maximum parameters are tested at T_A = +125°C. Limits over temperature are guaranteed by design.
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