MAX14588 Datasheet, PDF (3/15 Pages) Maxim Integrated Products – 1A Adjustable Overcurrent and Overvoltage Protector with High Accuracy

MAX14588
1A Adjustable Overcurrent and Overvoltage
Protector with High Accuracy
Electrical Characteristics (continued)
(V_IN = 4.5V to 36V, T_A = -40ºC to +125ºC, unless otherwise noted. Typical values are at V_IN = 24V, R_SETI = 12kΩ, T_A = +25ºC.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
External UVLO Leakage
I_{UVLO_LEAK} V_UVLO < 1.2V
-100
+100
nA
BG Reference Voltage
CLHS Voltage
INTERNAL FETs
V_BG
V_CLHS
Source 100µA
1.196 1.220 1.247
V
23
3.5
V
Internal FETs On-Resistance
Current-Limit Adjustment Range
Current-Limit Accuracy
FLAG Assertion Drop Voltage
Threshold
FLAG Output Logic-Low Voltage
R_ON
I_LIM
V_FA
I_LOAD = 100mA, V_IN ≥ 8V
190 370
mΩ
0.15
1.0
A
0.15A ≤ I_LIM < 0.3A
0.3A ≤ I_LIM < 1.0A
-20
+20
%
-10
+10
Increase (V_IN - V_OUT) drop until FLAG
asserts, V_IN = 24V
400
600
800
mV
I_SINK = 1mA
0.4
V
FLAG Output Leakage Current
V_IN = V_FLAG = 5V, flag deasserted
2
µA
Reverse-Current Blocking
Threshold
V_RIB
V_OUT - V_IN
25
100 250
mV
Reverse-Blocking Supply Current
I_RBL
V_OUT - V_IN > 130mV, current into OUT
430 700
µA
LOGIC INPUTS
HVEN Threshold Voltage
HVEN Threshold Hysteresis
HVEN Input Current
V_HVENTH
I_{HVEN_}
V_HVEN = 36V
1
2
3.5
V
2
%
26
41
µA
HVEN Input Reverse Current
I_{HVEN_R}
V_IN = V_HVEN = -36V
-43
-28
µA
EN, RIEN, CLTS1, CLTS2,
CLTS_MODE Input Logic-High
EN, RIEN, CLTS1, CLTS2,
CLTS_MODE Input Logic- Low
EN, RIEN, CLTS1, CLTS2,
CLTS_MODE Input Leakage
Current
DYNAMIC (NOTE 5)
Switch Turn-On Time
Switch Turn-Off Time
Overvoltage Switch Turn-Off
Time
Overcurrent Switch Turn-Off Time
V_IH
V_IL
ILEAK
V_LOGIC = 5V
t_ON
t_OFF
t_{OFF_OVP}
t_{OFF_OCP}
From OFF to ON (see Table 2),
R_LOAD = 240Ω, C_OUT = 470µF
From ON to OFF (see Table 2),
R_LOAD = 47Ω, C_OUT = 1µF
From (V_IN > V_OVLO) to
(V_OUT = 80% of V_{IN_OVLO}),
R_LOAD = 47Ω
After t_BLANK
1.4
V
0.4
V
-1
+1
µA
500
µs
3
µs
3
µs
3
µs
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