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LTM4700
ELECTRICAL CHARACTERISTICS
operating temperature range (Note 2). Specified as each individual output channel (Note 4). T
FREQUENCY_SWITCH = 350kHz and V
settings and per Test Circuit 1, unless otherwise noted.
SYMBOL
PARAMETER
Channels 0 and 1 Output Current (READ_IOUTn), Duty Cycle (READ_DUTY_CYCLE
N
Output Current Readback
IO-RB
Resolution and LSB Step Size
I
Output Current Full-Scale
O-F/S
Digitizable Range
I
Output Current, Readback Accuracy READ_IOUTn, Channels 0 and 1, 0 ≤ I
O-RB-ACC
I
Full Load Output Current Readback
O-RB(50A)
t
Output Current Readback Update
CONVERT-IO-RB
Rate
Input Current Readback
N
Resolution
V
LSB Step Size Full-Scale Range =
IINSTP
16mV
LSB Step Size Full-Scale Range =
32mV
LSB Step Size Full-Scale Range =
64mV
I
Total Unadjusted Error
IN_TUE
V
Zero-Code Offset Voltage
OS
t
Update Rate
CONVERT
Supply Current Readback
N
Resolution
V
LSB Step Size Full-Scale Range =
ICHIPSTP
256mV
I
Total Unadjusted Error
CHIPTUE
t
Update Rate
CONVERT
Temperature Readback (T0, T1)
T
Temperature Readback Resolution
RES-RB
T0_TUE
External Temperature Total
Unadjusted Readback Error
T1_TUE
Internal TSNS TUE
t
Update Rate
CONVERT
8
The
denotes the specifications which apply over the specified internal
l
commanded to 1.000V unless otherwise noted. Configured with factory-default EEPROM
OUTn
CONDITIONS
(Notes 10, 12)
(Note 12)
Utilizing MFR_PWM_MODE[7] = 1, Using ~I
Page 89
Forced-Continuous Mode, MFR_PWM_MODEn[1:0] = 1b
(Note 19)
25°C to 125°C
–45°C to 125°C
I
= 50A (Note 12). See Histograms in Typical
OUTn
Performance Characteristics
MFR_ADC_CONTROL = 0x00 (Notes 9, 15)
MFR_ADC_CONTROL = 0x06 (CH0 I
(Notes 9, 15) See MFR_ADC_CONTROL SECTION
(Note 10)
Gain = 8, 0V ≤ |V
IIN
Gain = 4, 0V ≤ |V
IIN
Gain = 2, 0V ≤ |V
IIN
Gain = 8, 2.5mV ≤ |V
Gain = 4, 4mV ≤ |V
Gain = 2, 6mV ≤ |V
(Notes 9,15) See MFR_ADC_CONTROL SECTION for Faster
Update Rates
(Note 10)
Onboard 1Ω Resistor
+
|V
– V
| ≤ 150mV
IIN
IN
(Notes 9,15) See MFR_ADC_CONTROL SECTION for Faster
Update Rates
Channel 0, Channel 1, and Controller (Note 15)
Supporting Only ∆V
V
= 0.0, f
RUN0,1
SYNC
(Note 9)
MFR_ADC_CONTROL = 0x04 or 0x0C (Notes 9, 15)
For more information
= 25°C, V
A
), and Computed Input Current (MFR_READ_IINn) Readback
n
= 50A,
OUT
≤ 50A,
OUTn
) or 0x01 (CH1 I
OUT
+
–
– V
| ≤ 5mV
IIN
+
–
– V
| ≤ 20mV
IIN
+
–
– V
| ≤ 50mV
IIN
+
–
– V
| V
= 8V (Note 15)
IIN
IIN
IN
+
–
– V
| V
= 8V (Note 15)
IIN
IIN
IN
+
–
– V
| V
= 8V (Note 15)
IIN
IIN
IN
Sensing
BE
= 0kHz (Note 15)
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= 12V, RUNn = 3.3V,
IN
MIN
TYP
MAX
10
34.1
50
Within 1.5A of Reading
Within 2.5A of Reading
l
50
90
)
8
OUT
10
15.26
30.52
61
±2
l
±1.3
l
±1.2
l
±50
90
10
244
±3
l
90
0.25
3
±1
90
8
UNITS
Bits
mA
A
A
ms
ms
Bits
µV
µV
µV
%
%
%
µV
ms
Bits
µV
%
ms
°C
°C
°C
°C
ms
ms
Rev. B
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