MIC2026A Datasheet PDF - Micrel Semiconductor

www.Datasheet-PDF.com

MIC2026A
Micrel Semiconductor

Part Number MIC2026A
Description Dual-Channel Power Distribution Switch
Page 16 Pages


MIC2026A datasheet pdf
Download PDF
MIC2026A pdf
View PDF for Mobile

No Preview Available !

MIC2026/2076
Micrel
MIC2026/2026A/2076/2076A
Dual-Channel Power Distribution Switch
General Description
The MIC2026 and MIC2076 are high-side MOSFET switches
optimized for general-purpose power distribution requiring
circuit protection.
The MIC2026/76 are internally current limited and have
thermal shutdown that protects the device and load.
The MIC2076 offers “smart” thermal shutdown that reduces
current consumption in fault modes. When a thermal shut-
down fault occurs, the output is latched off until the faulty load
is removed. Removing the load or toggling the enable input
will reset the device output.
Both devices employ soft-start circuitry that minimizes inrush
current in applications where highly capacitive loads are
employed.
A fault status output flag is asserted during overcurrent and
thermal shutdown conditions. Transient faults are internally
filtered.
The MIC2026/76 are available in 8-pin DIP or 8-lead SOP.
Features
140mmaximum on-resistance per channel
2.7V to 5.5V operating range
500mA minimum continuous current per channel
Shortcircuit protection with thermal shutdown
Thermally isolated channels
Fault status flag with 3ms filter eliminates false asser-
tions (MIC2026A/2076A with 10ms filter)
Undervoltwww.sony.com/clieage lockout
Reverse current flow blocking (no body diode)
Circuit breaker mode (MIC2076)
Logic-compatible inputs
Soft-start circuit
Low quiescent current
Pin compatible with MIC2526
Applications
USB peripherals
General purpose power switching
ACPI power distribution
Notebook PCs
PDAs
PC card hot swap
Typical Application
VCONT.
10k
10k
Logic Controller
VIN ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
VCC
2.7V to 5.5V
MIC2026-2
ENA
FLGA
FLGB
ENB
OUTA
IN
GND
OUTB
Load
0.1µF
Load
UL Recognized Component
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
February 1, 2001
1
MIC2026/2076



No Preview Available !

MIC2026/2076
Ordering Information
Part Number
Enable
Temperature Range
Package
MIC2026x-1BM Active High
40°C to +85°C
8-lead SOP
MIC2026x-2BM
Active Low
40°C to +85°C
8-lead SOP
MIC2026x-1BN
Active High
40°C to +85°C
8-pin DIP
MIC2026x-2BN
Active Low
40°C to +85°C
8-pin DIP
MIC2076x-1BM Active High
40°C to +85°C
8-lead SOP
MIC2076x-2BM
Active Low
40°C to +85°C
8-lead SOP
MIC2076x-1BN
Active High
40°C to +85°C
8-pin DIP
MIC2076x-2BN
Active Low
40°C to +85°C
8-pin DIP
Note. x=A; optional part that includes a 10ms Fault status delay filter. No ‘x’ denotes standard part.
Micrel
Pin Configuration
MIC2026/76
ENA 1
8 OUTA
FLGA 2
7 IN
FLGB 3
6 GND
ENB 4
5 OUTB
8-Lead SOP (BM)
8-Pin DIP (BN)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
MIC2026/2076
Pin Name
ENA
FLGA
FLGB
ENB
OUTB
GND
IN
OUTA
Pin Function
Switch A Enable (Input): Logic-compatible enable input. Active high (-1) or
active low (-2).
Fault Flag A (Output): Active-low, open-drain output. Indicates overcurrent
or thermal shutdown conditions. Overcurrent conditions must last longer
than tD in order to assert FLGA.
Fault Flag B (Output): Active-low, open-drain output. Low indicates
overcurrent or thermal shutdown conditions.Overcurrent conditions must last
longer than tD in order to assert FLGB.
Switch B Enable (Input): Logic-compatible enable input. Active-high (-1) or
active-low (-2).
Switch B (Output)
Ground
Input: Switch and logic supply input.
Switch A (Output)
2 February 1, 2001



No Preview Available !

MIC2026/2076
Micrel
Absolute Maximum Ratings (Note 1)
Supply Voltage (VIN) ...................................... 0.3V to +6V
Fault Flag Voltage (VFLG) .............................................. +6V
Fault Flag Current (IFLG) ............................................ 25mA
Output Voltage (VOUT) .................................................. +6V
Output Current (IOUT) ............................... Internally Limited
Enable Input (IEN) .................................... 0.3V to VIN + 3V
Storage Temperature (TS) ...................... 65°C to +150 °C
ESD Rating, Note 3
Operating Ratings (Note 2)
Supply Voltage (VIN) ................................... +2.7V to +5.5V
Ambient Temperature (TA) ......................... 40°C to +85°C
Junction Temperature Range (TJ) ........... Internally Limited
Thermal Resistance
SOP (θJA) .......................................................... 160°C/W
DIP(θJA) ............................................................. 105°C/W
Electrical Characteristics
VIN = +5V; TA = 25°C, bold values indicate 40°C TA +85°C; unless noted
Symbol
Parameter
Condition
Min Typ Max Units
IDD Supply Current
MIC20x6-1, VENA = VENB 0.8V
(switch off), OUT = open
0.75 5
µA
MIC20x6-2, VENA = VENB 2.4V
(switch off), OUT = open
0.75 5
µA
MIC20x6-1, VENA = VENB 2.4V
(switch on), OUT = open
100 160
µA
MIC20x6-2, VENA = VENB 0.8V
(switch on), OUT = open
100 160
µA
VEN Enable Input Threshold
low-to-high transition
high-to-low transition
1.7 2.4
0.8 1.45
V
V
Enable Input Hysteresis
250 mV
IEN Enable Input Current
Enable Input Capacitance
VEN = 0V to 5.5V
1 0.01
1
1
µA
pF
RDS(on)
Switch Resistance
Output Leakage Current
OFF Current in
Latched Thermal Shutdown
VIN = 5V, IOUT = 500mA
VIN = 3.3V, IOUT = 500mA
MIC20x6-1, VENx 0.8V;
MIC20x6-1, VENx 2.4V, (output off)
MIC2076
(during thermal shutdown state)
90 140 m
100 170 m
10 µA
50 µA
tON Output Turn-On Delay
RL = 10, CL = 1µF, see Timing Diagrams
1.3 5 ms
tR
Output Turn-On Rise Time
RL = 10, CL = 1µF, see Timing Diagrams0.5 1.15 4.9
ms
RL = 10, CL = 1µF, see Timing Diagrams
MIC2026A/MIC2076A
1.75
ms
tOFF
tF
ILIMIT
Output Turn-Off Delay
Output Turn-Off Fall Time
Short-Circuit Output Current
Current-Limit Threshold
RL = 10, CL = 1µF, see Timing Diagrams
RL = 10, CL = 1µF, see Timing Diagrams
VOUT = 0V, enabled into short-circuit
ramped load applied to output
0.5
35 100
32 100
0.9 1.25
1.0 1.25
µs
µs
A
A
Short-Circuit Response Time
VOUT = 0V to IOUT = ILIMIT
(short applied to output)
20 µs
tD
Overcurrent Flag Response
VIN = 5V, apply VOUT = 0V until FLG low
1.5 3
7 ms
Delay
VIN = 3.3V, apply VOUT = 0V until FLG l ow 3 ms
VIN = 5V, apply VOUT = 0V until FLG low
MIC2026A/MIC2076A
10 ms
February 1, 2001
3
MIC2026/2076



No Preview Available !

MIC2026/2076
Micrel
Symbol
Parameter
Condition
Min Typ Max Units
Undervoltage Lockout
Threshold
Error Flag Output
Resistance
Error Flag Off Current
Overtemperature Threshold
Note 4
VIN rising
VIN falling
IL = 10mA, VIN = 5V
IL = 10mA, VIN = 3.3V
VFLAG = 5V
TJ increasing, each switch
TJ decreasing, each switch
TJ increasing, both switches
TJ decreasing, both switches
2.2 2.4 2.7
2.0 2.15 2.5
10 25
15 40
10
140
120
160
150
V
V
µA
°C
°C
°C
°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.
If there is a fault on one channel, that channel will shut down when the die reaches approximately 140°C. If the die reaches approximately
160°C, both channels will shut down, even if neither channel is in current limit.
Test Circuit
Device
Under OUT
Test
RL CL
VOUT
Timing Diagrams
VOUT
tR
90%
10%
90%
10%
Output Rise and Fall Times
tF
VEN
VOUT
50%
tON
90%
tOFF
10%
Active-Low Switch Delay Times (MIC20x6-2)
MIC2026/2076
VEN 50%
VOUT
tON
90%
tOFF
10%
Active-High Switch Delay Times (MIC20x6-1)
4
February 1, 2001



MIC2026A datasheet pdf
Download PDF
MIC2026A pdf
View PDF for Mobile


Related : Start with MIC2026 Part Numbers by
MIC2026 Dual-Channel Power Distribution Switch MIC2026
Micrel Semiconductor
MIC2026 pdf
MIC2026A Dual-Channel Power Distribution Switch MIC2026A
Micrel Semiconductor
MIC2026A pdf

Index :   0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   

This is a individually operated, non profit site. If this site is good enough to show, please introduce this site to others.
Since 2010   ::   HOME   ::   Contact