MAX15061 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. V_PGND = V_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
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Soft-Start Duration
8
ms
Soft-Start Steps
CONTROL INPUT (CNTRL)
(0.25 x I_{LIM_LX}) to I_{LIM_LX}
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
V_MOUT -
V_CLAMP
Forward diode current = 1mA
0.5
0.73 0.95
V
Output Clamp Leakage Current
V_BIAS = V_CLAMP = 76V
1
nA
Output-Voltage Range
V_MOUT
10V ≤ V_BIAS ≤ 76V, 0 ≤ I_APD ≤ 1mA, clamp
is unconnected
V_BIAS -
1V
V
Current Gain
I_MOUT/I_APD
I_APD = 500nA
I_APD = 2mA
0.1
0.0965 0.1 0.1035
Power-Supply Rejection Ratio
APD Input Current Limit
Current-Limit Adjustment Range
Power-Up Settling Time
PSRR
I_{LIM_APD}
t_S
(ΔI_MOUT/I_MOUT)/ΔV_BIAS,
V_BIAS = 10V to 76V
(Note 3)
I_APD = 500nA
I_APD = 5μA to
1mA
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 = 2.5mA
-1000 +300 +1500
-250
3.15
1
+24 +250
3.75 4.35
5
7.5
90
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_IL
V_IH
V_OL
I_LIM = 2mA
I_OH
V_ILIM = 11V
Temperature rising
0.8
2.4
0.3
1
+160
10
Note 2: All minimum/maximum parameters are tested at T_A = +125°C. Limits over temperature are guaranteed by design.
Note 3: Guaranteed by design and not production tested.
ppm/V
mA
mA
ms
μs
V
V
V
μA
°C
°C
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