MAX15068 Datasheet, PDF (5/17 Pages) Maxim Integrated Products – Dual ORing, Single Hot-Swap Controller

MAX15068
Dual ORing, Single Hot-Swap Controller with
Accurate Current Monitoring
Electrical Characteristics (continued)
(V_IN1 = V_IN2 = 12V, C_IN1 = C_IN2 = C_VS = 1µF, T_A = -40°C to +125°C. Typical values are at T_A = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
CB Input Open-Current Voltage
CB Low Voltage
CB High Voltage
CURRENT MONITORING
Current Monitor vs. Undervoltage
Lockout
IMON Offset (Note 3)
IMON Gain (Note 3)
SYMBOL
V_{CB_OPEN}
V_IL
V_IH
I_{MON_UVLO}
I_{MON_OS}
G_IM
CONDITIONS
Force ±4µA into unconnected CB pin; then
measure voltage on the CB pin
V_CB rising
V_CB falling, relative to V_S
MIN TYP MAX UNITS
1.0
V_S - 1
V
0.4
V
V_S - 0.2
V
V_S rising
Hysteresis
V_CSP = 12V
V_CSP = 4.8V
to 18V
V_CSP = 12V
V_CSP = 4.8V
to 18V
T_A = +25°C
T_A = -40°C to +85°C
T_A = -40°C to +125°C
T_A = -40°C to +125°C
T_A = +25°C
T_A = -40°C to +125°C
T_A = -40°C to +125°C
4.1
4.16 4.23
0.1
V
-80
+80
-200
+200
-240
-240
µV
-300
+300
2.991
2.9595
2.955
3.009
3.0405
mS
3.045
V_CSP = 12V, R_SENSE = 3mΩ, I_LOAD = 1A,
(V_CSP - V_CSN) = 3mV, T_A = +25°C,
I_{MON_ACCURACY} = ((I_IMON - 9µA)/9µA) x
-3
+3
100
Current Monitoring Total
Accuracy (Note 4)
V_CSP = 12V, R_SENSE = 3mΩ, I_LOAD = 5A,
I_{MON_}
ACCURACY
(V_CSP - V_CSN) = 15mV, T_A = +25°C,
I_{MON_ACCURACY} = ((I_IMON - 45µA)/45µA)
-0.9
x 100
+0.9
%
V_CSP = 12V, R_SENSE = 3mΩ, I_LOAD =
10A, (V_CSP - V_CSN) = 30mV, T_A = +25°C,
I_{MON_ACCURACY} = ((I_IMON - 90µA)/90µA)
-0.6
x 100
+0.6
CMRR (Note 5)
I_{MON_CMRR} V_CSP = 4.8V to 18V
102
dB
Input Voltage Range
(V_CSP - V_CSN)
MAX
V_CSP = 4.8V to 18V, -40°C ≤ T_A ≤ +125°C
30
mV
Output Voltage Range
VIMON_MAX V_CSP = 4.8V to 18V, -40°C ≤ T_A ≤ +125°C
1.8
V
IMON Voltage Clamp
V_{IMON_CLMP}
V_CSP - V_CSN ≥ 36mV, V_CSP = 4.8V to 18V,
-40°C ≤ T_A ≤ +125°C
2.25
2.4
2.5
V
Note 2: All devices are 100% production tested at T_A = +25°C. Limits over temperature are guaranteed by design.
Note 3: Gain and offset are defined as IMON₁ = IMON with Vi₁ = (V_CSP - V_CSN) = 3mV, IMON₂ = IMON with Vi₂ = (V_CSP - V_CSN)
= 30mV, G_IM = (IMON₂ - IMON₁)/(Vi₂ - Vi₁), I_{MON_OS} = IMON₁ - G_IM x Vi₁.
Note 4: Accuracy over the entire operating range can be determined combining the specified value of the related offset and gain in
the range.
Note 5: CMRR is calculated as:
I_REF = IMON with V_CSP - V_CSN = 3mV at V_REF = V_CSP = 12V
ICM = IMON with V_CSP - V_CSN = 3mV at 4.8V < V_CSP < 18V
CMRR = 20 x LOG(ABS((V_REF - V_CSP)/(I_REF - ICM)) x G_IM)
where G_IM is the differential gain defined in the EC table.
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