MAX16929_12 Datasheet, PDF (3/25 Pages) Maxim Integrated Products – Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators

MAX16929
Automotive TFT-LCD Power Supply with Boost
Converter and Gate Voltage Regulators
ELECTRICAL CHARACTERISTICS (continued)
(V_INB = 12V, V_INA = 5V, V_GND = V_PGNDP = 0V, T_A = T_J = -40NC to +105NC, typical values are at T_A = +25NC, unless otherwise noted.)
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
Soft-Start Ramp Time
Maximum Duty Cycle
Continuous mode
Minimum Duty Cycle
Continuous mode
Maximum Duty Cycle in Dropout
Dropout
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
POWER GOOD (PGOOD)
PGOOD Threshold
Rising
Falling
PGOOD Debounce Time
Output High-Leakage Current
Output Low Level
LOGIC LEVELS
ENB Threshold
ENB rising
ENB Hysteresis
ENB Input Current
BOOST, POSITIVE (GH), NEGATIVE (GL), 1.8V/3.3V CONVERTERS
INA Input Supply Range
INA Supply Current
V_INA
I_INA
V_FBP = V_FBGH = 1.3V, V_FBGL = 0V,
LXP not switching
INA Undervoltage Lockout
Threshold
INA Shutdown Current
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Duration to Trigger Fault Condition
V_INA,UVLO
I_SHDN
T_SHDN
T_H
V_INA rising, hysteresis = 200mV,
T_A = +25NC
V_ENP = 0V, T_A = +25NC
Temperature rising
V_FBP, V_FBGH, or V_FBGL below its thresh-
old
Autoretry Time
REFERENCE (REF)
REF Output Voltage
REF Load Regulation
REF Undervoltage Lockout
Threshold
V_REF
No output current
0 < I_REF < 80FA, REF sourcing
Rising edge, hysteresis = 200mV
OSCILLATOR
Internal Oscillator Frequency
Spread-Spectrum Modulation
Frequency
f_OSC
f_SS
T_A = +25NC
MIN
90
1.4
3
3
2.5
1.236
-2
3.96
TYP
3.9
80
20
95
+175
15
94
92
13
1.8
0.2
5
1.5
2.7
0.5
+165
15
238
1.9
1.25
4.40
f_OSC/2
MAX
95
0.2
0.4
2.2
9
5.5
2.0
2.9
1.264
+2
1.165
4.84
UNITS
ms
%
%
%
NC
NC
%
Fs
FA
V
V
V
FA
V
mA
V
FA
NC
NC
ms
s
V
%
V
MHz
MHz
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