MAX1739EEP+ Maxim Integrated Products, MAX1739EEP+ Datasheet - Page 5

• Manufacturer Part Number: MAX1739EEP+
• Description: Display Drivers Wide Brightness Rang e CCFL Backlight Con
• Manufacturer: Maxim Integrated Products

Specifications of MAX1739EEP+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Note 1: Corresponds to 512 DPWM cycles or 65536 MODE
Note 2: When the buck switch is shorted, V
Note 3: Corresponds to 64 DPWM cycles or 8192 MODE cycles.
Note 4: The MODE pin thresholds are only valid while the part is
ELECTRICAL CHARACTERISTICS
(V+ = 8.2V, V
SUPPLY AND REFERENCE
V
V
VL Output Voltage, Normal Operation
VL Undervoltage Lockout Threshold
REF Output Voltage, Normal
Operation
VL POR Threshold
SWITCHING REGULATOR
DH Driver On-Resistance
DL1, DL2 Driver On-Resistance
SYNC Synchronization Range
CS Overcurrent Threshold
DAC AND ERROR AMPLIFIER
CSAV Regulation Point
CTFB Regulation Point
CTFB to CCV Transconductance
ANALOG INTERFACE BRIGHTNESS CONTROL (MODE connected to REF or MODE connected to GND)
SH Input Low Voltage
SH Input High Voltage
SYSTEM MANAGEMENT BUS BRIGHTNESS CONTROL (MODE connected to VL)
CRF/SDA, CTL/SCL, SH/SUS Input
Low Voltage
CRF/SDA, CTL/SCL, SH/SUS Input
High Voltage
CRF/SDA Output Low Sink Current
BATT
BATT
Input Voltage Range
Quiescent Current, Shutdown
cycles.
causing V
operating. In shutdown, V
differentiates between SMB mode and ADC mode. In
shutdown with ADC mode selected, the CRF/SDA and
CTL/SCL pins are at high impedance and will not cause
extra supply current when their voltages are not at
GND or VL.
PARAMETER
SH
/SUS = V
CCV
_______________________________________________________________________________________
to go below the fault detection threshold.
SH
= 5.5V, MINDAC = GND, T
REF
= 0 and the part only
VL = V
VL = open
SH/SUS = SH = GND
6V < V
0 < I
VL rising (leaving lockout)
VL falling (entering lockout)
4.5V < VL < 5.5V, I
Detect falling edges on SYNC
V
1V < V
V
CTFB
MINDAC
CRF/SDA
LOAD
goes high
BATT
BATT
CCV
= 0, DAC code = 11111 binary
= 0.4V
< 15mA
< 2.7V
< 28V,
A
= -40°C to +85°C, unless otherwise noted.) (Note 6)
CCFL Backlight Controllers
CONDITIONS
REF
= 40µA
Wide Brightness Range
Note 5: The amplitude is measured with the following circuit:
Note 6: Specifications from -40°C to +85°C are guaranteed by
design, not production tested.
V
AMPLITUDE
1.95
MIN
408
186
560
4.6
5.0
4.0
0.9
2.1
2.1
64
30
6
4
> 2V
TYP
500pF
MAX
2.05
200
492
202
640
10k
5.5
5.6
4.6
2.7
0.8
0.8
28
20
18
18
50
MODE
UNITS
µmho
kHz
mA
mV
mV
mV
µA
Ω
Ω
V
V
V
V
V
V
V
V
V
5