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| MAX1385 Datasheet, PDF (2/52 Pages) Maxim Integrated Products – Dual RF LDMOS Bias Controllers with I2C/SPI Interface | |||
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Dual RF LDMOS Bias Controllers
with I2C/SPI Interface
ABSOLUTE MAXIMUM RATINGS
AVDD to AGND .........................................................-0.3V to +6V
DVDD to DGND.........................................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
CS1+, CS1-, CS2+, CS2- to GATEGND.................-0.3V to +32V
CS1- to CS1+, CS2- to CS2+ ...................................-6V to +0.3V
GATEVDD to GATEGND .........................................-0.3V to +12V
GATE1, GATE2 to GATEGND ...........-0.3V to (GATEVDD + 0.3V)
SAFE1, SAFE2 to GATEGND....................................-0.3V to +6V
GATEGND to AGND..............................................-0.3V to +0.3V
All Other Analog Inputs
to AGND ............-0.3V to the lower of +6V and (AVDD + 0.3V)
Digital Inputs
to DGND ............-0.3V to the lower of +6V and (DVDD + 0.3V)
SDA/DIN, SCL to DGND...........................................-0.3V to +6V
Digital Outputs to DGND .........................-0.3V to (DVDD + 0.3V)
Maximum Continuous Current into Any Pin ........................50mA
Continuous Power Dissipation (TA = +70°C)
48-Pin, 7mm x 7mm, Thin QFN (derate 27.8 mW/°C
above +70°C).............................................................2222mW
Maximum Junction Temperature .....................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under âAbsolute Maximum Ratingsâ 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
(GATEVDD = +5.5V for the MAX1385, GATEVDD = +11V for the MAX1386, AVDD = DVDD = +5V, external VREFADC = +2.5V, external VREF-
DAC = +2.5V, CREF = 0.1µF, unless otherwise noted. TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
HIGH-SIDE CURRENT SENSE WITH PGA
CONDITIONS
MIN TYP MAX UNITS
Common-Mode Input Voltage
Range
VCS+, VCS-
5
30
V
Common-Mode Rejection Ratio
Input-Bias Current
Full-Scale Sense Voltage Range
Sense Voltage Range for
Accuracy of ±0.5% VSENSE
Sense Voltage Range for
Accuracy of ±2% VSENSE
Total PGAOUT Voltage Error
PGAOUT Capacitive Load
PGAOUT Settling Time
CMRR
ICS+
ICS-
VSENSE =
VCS_+ -
VCS_-
CPGAOUT
tHSCS
11V < VCS+ < 30V
VSENSE < 100mV over the common-mode
range
PGA gain = 25
PGA gain = 10
PGA gain = 2
PGA gain = 25
PGA gain = 10
PGA gain = 2
PGA gain = 25
PGA gain = 10
PGA gain = 2
VSENSE = 75mV
Settles to within ±0.5% of final value, RS =
50â¦, CGATE = 15pF
90
dB
120 195
µA
0.002 ±2
0
100
0
250
mV
0
1250
75
100
75
250
mV
75
1250
20
100
20
250
mV
20
1250
±0.1 ±0.5
%
100
pF
< 25
µs
Saturation Recovery Time
Sense-Amplifier Slew Rate
Settles to within ±0.5% accuracy; from
VSENSE = 3 x full scale
AvPGA = 2
AvPGA = 10
AvPGA = 25
< 45
µs
0.5
2
V/µs
2
2 _______________________________________________________________________________________
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