MAX15031 Datasheet, PDF (2/16 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
ABSOLUTE MAXIMUM RATINGS
PWR, IN to SGND ...................................................-0.3V to +12V
LX to PGND ............................................................-0.3V to +80V
BIAS, APD to SGND ...............................................-0.3V to +80V
SHDN to SGND............................................-0.3V to (V_IN + 0.3V)
CLAMP to SGND ......................................-0.3V to (V_BIAS + 0.3V)
FB, ILIM, RLIM, CP, CN, CNTRL to SGND .............-0.3V to +12V
PGND to SGND .....................................................-0.3V to +0.3V
MOUT to SGND ....................................-0.3V to (V_CLAMP + 0.3V)
Continuous Power Dissipation
16-Pin TQFN (derate 25mW/°C above +70°C) ............2000mW
Thermal Resistance (Note 1)
θ_JA ....................................................................................40°C/W
θ_JC......................................................................................6°C/W
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(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
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage Range
Supply Current
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
Shutdown Current
Shutdown Input Bias Current
BOOST CONVERTER
V_IN, V_PWR
CP connected to IN, C_CP = open
V_FB = 1.4V, no switching
I_{SUPPLY VIN = 11V, VFB = 1.4V (no switching),}
C_CP = open, CP = IN
V_UVLO V_IN rising
V_{UVLO_HYS}
I_{IN_SHDN} SHDN pulled low
I_{BIAS_SHDN} V_BIAS = 3.3V, SHDN = 0
2.7
5.5
V
5.5
11
1
2
mA
1.2
3
2.375 2.5 2.675
V
100
mV
2
µA
30
µA
Output-Voltage Adjustment
Range
V_IN +
1V
76
V
Switching Frequency
Maximum Duty Cycle
FB Set-Point Voltage
FB Input Bias Current
Internal Switch On-Resistance
Peak Switch Current Limit
LX Leakage Current
Line Regulation
f_SW
V_IN = V_PWR = 5V
2.9V ≤ V_PWR ≤ 11V, V_IN = V_PWR
360
400
440
kHz
352
400
448
D_CLK 2.9V ≤ V_PWR ≤ 11V, V_IN = V_PWR
86
90
94
%
V_FB
1.2201 1.245 1.2699
V
I_FB
100
nA
R_ON
I_LX = 100mA
V_PWR = V_IN = 2.9V,
V_CP = 5.5V
V_PWR = V_IN = 5.5V,
V_CP = 10V
1
2
1
2
Ω
I_LX = 100mA,
V_CP = V_IN
V_PWR = V_IN = V_CP = 5.5V
V_PWR = V_IN = V_CP = 11V
1
2
1
2
I_{LIM_LX}
0.8
1.2
1.6
A
V_LX = 36V
1
µA
2.9V ≤ V_PWR ≤ 11V, V_PWR = V_IN,
I_LOAD = 4.5mA
0.2
%
2 _______________________________________________________________________________________