MAX15034 Datasheet, PDF (3/25 Pages) Maxim Integrated Products – Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications

Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = V_REG = V_DD = V_{EN_} = +5V, T_A = T_J = T_MIN to T_MAX, unless otherwise noted, circuit of Figure 6. Typical values are at T_A = +25°C.)
(Note 2)
PARAMETER
Nonoverlap Time (Dead Time)
RT/CLKIN Output Voltage
RT/CLKIN Current Sourcing
Capability
RT/CLKIN Logic-High Threshold
RT/CLKIN Logic-Low Threshold
RT/CLKIN High Pulse Width
RT/CLKIN Synchronization
Frequency Range
CURRENT LIMIT
Internal Average Current-Limit
Threshold
Reverse Average Current-Limit
Threshold
External Average Current-Limit
Threshold Adjustment
AVGLIMIT Ground Threshold
Voltage
SYMBOL
t_NO
V_RT/CLKIN
CONDITIONS
C_{DH_} or C_{DL_} = 5nF
f_SW = 1MHz nominal, R_RT = 12.4kΩ
I_RT/CLKIN
V_{RT/CLKIN_H}
V_{RT/CLKIN_L}
t_RT/CLKIN
f_RT/CLKIN
V_{CL_}
V_{CSP_} - V_{CSN_}
V_{RCL_}
V_{CSP_} - V_{CSN_}
V_{CL_ADJ}
Resistor-divider connected from REG
to AVGLIMIT to AGND
V_{AVGLIMIT_GND}
MIN
TYP MAX UNITS
-7.5
+7.5
%
-10
+10
1.225
V
0.5
mA
2.4
V
0.8
V
30
ns
200
2000 kHz
20.4
22.5 24.75 mV
-3.0
-1.53 -0.1
mV
V_AVGLIMIT -
0.6/36
V
550
mV
Leakage Current at AVGLIMIT
I_AVGLIMIT V_AVGLIMIT = 3V
100
nA
DIGITAL FAULT INTEGRATION (DF_)
Number of Switching Cycles to
Shutdown in Current Limit
NS_{DF_}
Number of Switching Cycles to
Recover from Shutdown
NR_{DF_}
CURRENT-SENSE AMPLIFIER
CSP_ to CSN_ Input Resistance
R_{CS_}
Common-Mode Range
V_CMR(CS)
Input Offset Voltage
Amplifier Gain
V_OS(CS)
A_V(CS)
V_IN = V_REG = 4.75V to 5.5V or
V_IN = 5V to 10V
V_IN = 7V to 28V
32,768
524,288
Clock
cycles
Clock
cycles
3.8
kΩ
-0.3
+3.6
V
-0.3
+5.5
V
100
μV
36
V/V
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