MIC2027 Datasheet, PDF (4/16 Pages) Micrel Semiconductor – Quad USB Power Distribution Switch Preliminary Information

MIC2027/2077
Micrel
Electrical Characteristics
V_IN = +5V; T_A = 25°C, bold values indicate –40°C ≤ T_A ≤ +85°C; unless noted
Symbol
Parameter
Condition
Min Typ Max Units
I_DD
Supply Current
MIC20x7-1, V_ENA–D ≤ 0.8V
(switch off), OUT = open
1.5
10
µA
MIC20x7-2, V_ENA–D ≥ 2.4V
(switch off), OUT = open
1.5
10
µA
MIC20x7-1, V_ENA–D ≥ 2.4V
(switch on), OUT = open
200 320
µA
MIC20x7-2, V_ENA–D ≤ 0.8V
(switch on), OUT = open
200 320
µA
V_EN
Enable Input Threshold
low-to-high transition
high-to-low transition
1.7
2.4
V
0.8 1.45
V
Enable Input Hysteresis
250
mV
I_EN
Enable Input Current
Enable Input Capacitance
V_EN = 0V to 5.5V
–1 0.01
1
µA
1
pF
R_DS(on)
t_ON
t_R
t_OFF
t_F
I_LIMIT
Switch Resistance
Output Leakage Current
Output Current in
Latched Thermal Shutdown
Output Turn-On Delay
Output Turn-On Rise Time
Output Turnoff Delay
Output Turnoff Fall Time
Short-Circuit Output Current
Current-Limit Threshold
V_IN = 5V, I_OUT = 500mA
V_IN = 3.3V, I_OUT = 500mA
MIC20x7-1, V_ENx ≤ 0.8V;
MIC20x7-2, V_ENx ≥ 2.4V, (output off)
MIC2077 (per Latch Output)
(during thermal shutdown state)
100 150 mΩ
110 170 mΩ
10
µA
50
µA
R_L = 10Ω, C_L = 1µF, see “Timing Diagrams”
1.3
5
ms
R_L = 10Ω, C_L = 1µF, see “Timing Diagrams”
1.15 4.9
ms
R_L = 10Ω, C_L = 1µF, see “Timing Diagrams”
35
100
µs
R_L = 10Ω, C_L = 1µF, see “Timing Diagrams”
32
100
µs
V_OUT = 0V, enabled into short-circuit
0.5
0.9 1.25
A
ramped load applied to output
1.0 1.25
A
Short-Circuit Response Time
V_OUT = 0V to I_OUT = I_LIMIT
(short applied to output)
20
µs
t_D
Overcurrent Flag Response
V_IN = 5V, apply V_OUT = 0V until FLG low
1.5
3
7
ms
Delay
V_IN = 3.3V, apply V_OUT = 0V until FLG low
3
ms
Undervoltage Lockout
Threshold
V_IN rising
V_IN falling
2.2
2.4
2.7
V
2.0 2.15 2.5
V
Error Flag Output
Resistance
I_L = 10mA, V_IN = 5V
I_L = 10mA, V_IN = 3.3V
10
25
Ω
15
40
Ω
Error Flag Off Current
V_FLAG = 5V
10
µA
Overtemperature Threshold
Note 4
T_J increasing, each switch
T_J decreasing, each switch
140
°C
120
°C
T_J increasing, both switches
T_J decreasing, both switches
160
°C
150
°C
Note 1.
Note 2.
Note 3.
Note 4.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
If there is an output current limit fault on one channel, that channel will shut down when the die reaches approximately 140°C. If the die
reaches approximately 160°C, the other channel driven by the same input will shut down, even if neither channel is in current limit.
MIC2027/2077
4
June 2000