MAX16930 Datasheet, PDF (5/29 Pages) Maxim Integrated Products – 2MHz, 36V, Dual Buck with Preboost and 20μA Quiescent Current

MAX16930/MAX16931
2MHz, 36V, Dual Buck with Preboost and
20µA Quiescent Current
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = 14V, V_BIAS = 5V, C_BIAS = 6.8μF, T_A = T_J = -40NC to +125NC, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
Battery rising and EN3 high
MIN
0.325
TYP
0.35
MAX
0.375
UNIT
INS Threshold
Undervoltage Lockout
V_INS,UV
Battery falling and EN3 high, preboost
turns off when V_INS falls below this
threshold
V
0.275 0.3 0.325
BSTON Leakage Current
BSTON Debounce Time
V_BSTON = 5V, T_A = +25NC
Fault detection
0.01
1
FA
10
Fs
DL3 Pullup Resistance
DL3 Pulldown resistance
Feedback Voltage
Boost Load Regulation Error
V_FB3
V_BIAS = 5V, I_DL3 = -100mA
V_BIAS = 5V, I_DL3 = +100mA
No load on boost output
0mV < V_CS3P - V_CS3N < 120mV,
error proportional to input current
4
8
I
1
2
I
1.1875 1.25 1.3125
V
0.7
%/A
EN3 Threshold
High threshold
Low threshold
3.5
V
2
EN3 Input Current
TERM Resistance
TERM Leakage Current
INS and FB3 Leakage Current
V_EN3 = 5.5V
I_TERM = 10mA
V_TERM = 14V, V_EN3 = 0V, T_A = +25NC
T_A = +25NC
7
14
FA
70
150
I
0.01
1
FA
0.01
1
FA
Note 2: Limits are 100% production tested at T_A = +25°C. Limits over the operating temperature range and relevant supply volt-
age are guaranteed by design and characterization. Typical values are at T_A = +25°C.
Note 3: Overvoltage protection is detected at the FB1/FB2 pins. If the feedback voltage reaches overvoltage threshold of FB1/FB2
+ 15% (typ), the corresponding controllers stop switching. The controllers resume switching once the output drops below
FB1/FB2 + 10% (typ).
Note 4: Guaranteed by design; not production tested.
Maxim Integrated
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