MIC2505-1YM Micrel Inc, MIC2505-1YM Datasheet

IC SW HIGH SIDE SGL 2A 8SOIC

MIC2505-1YM

Manufacturer Part Number
MIC2505-1YM
Description
IC SW HIGH SIDE SGL 2A 8SOIC
Manufacturer
Micrel Inc
Type
High Sider
Datasheet

Specifications of MIC2505-1YM

Input Type
Non-Inverting
Number Of Outputs
1
On-state Resistance
30 mOhm
Current - Output / Channel
2A
Current - Peak Output
4A
Voltage - Supply
2.7 V ~ 7.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Power Load Switch Type
High Side
Input Voltage
7.5V
On State Resistance
0.03ohm
Thermal Protection
Yes
On / Enable Input Polarity
Active High
No. Of Outputs
1
Current Limit
4A
Short Circuit Current Limit
4A
Input Voltage Range
2.7 to 7.5V
Number Of Switches
Single
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-1081

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MIC2505-1YM
Manufacturer:
MICREL
Quantity:
20 000
Part Number:
MIC2505-1YM-TR
0
General Description
The MIC2505, MIC2505-1, MIC2505-2, and MIC2506 are
single and dual integrated high-side power switches that
consist of TTL compatible control/enable inputs, a charge
pump, and protected N-channel MOSFETs. The MIC2505/6
family can be used instead of separate high-side drivers and
MOSFETs in many low-voltage applications.
The MIC2505/6 family controls voltages ranging from 2.7V to
7.5V. The MIC2505-series can deliver at least 2A continuous
current while the MIC2506 can deliver at least 1A continuous
current from each output. A slow turn-on feature prevents
high inrush current when switching capacitive loads. The
internal control circuitry is powered from the same 2.7V to
7.5V. Within the device’s input range, outputs can be forced
higher than the input voltage when disabled.
Multipurpose open-drain fault flag outputs indicate overcur-
rent limiting, open-load detection (except MIC2505-1 and -2
versions), thermal shutdown, or undervoltage lockout for
each channel.
Overcurrent limiting is internally fixed and requires no exter-
nal components.
Open-load detection is active when the switch is off. When
off, a normal load pulls the output pin low. If the load is open,
an optional, external, high-value resistor pulls the output pin
high, triggering the fault flag. MIC2505-1 and -2 versions are
tailored to Universal Serial Bus (USB) applications and do not
include open-load detection.
Thermal shutdown turns off the output if the die temperature
exceeds approximately 135 C. If enabled, the switch auto-
matically restarts when the temperature falls 10 C.
Undervoltage lockout (UVLO) shuts off the output if the
supply drops below 2.3V typical and reenables the output
when the supply exceeds 2.5V typical.
Typical Applications
April 2004
MIC2505/2506
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
OFF
FAULT
ON
Resistor
Pull-up
(100k)
Single and Dual Switch/Circuit Breakers with Open-Load Detection and Fault Output
1
2
3
4
Optional
Output Delay
Capacitor
CTL
FLG
GND
GATE
MIC2505BM
OUT
OUT
IN
IN
2.7V to 7.5V
8
5
7
6
0.1µF
Detect Resistor
(MIC2505BN or
100k
MIC2505BM
Open Load
Optional
only)
FAULT A
FAULT B
A OFF
B OFF
1
A ON
B ON
(100k each)
Features
• Low MOSFET on resistance to 2.7V
• 2.7V to 7.5V input
• 110 A typical on-state supply current
• 1 A typical off-state supply current
• Output can be forced higher than input (off-state)
• Current limit
• Thermal shutdown
• 2.5V undervoltage lockout (UVLO)
• Open-load detection
• Open-drain fault flag
• 5ms (slow) turn-on and fast turnoff
• Logic-level control/enable input
Applications
• USB Power Distribution
• 3.3V and 5V power management
• PC Card card inrush limiting switch
• Hot plug-in power supplies
• Battery-charger circuits
Resistors
Pull-up
Single 2A / Dual 1A / High-Side Switches
30m typical at 5V (MIC2505-series)
35m typical at 3.3V (MIC2505-series)
75m typical at 5V (each MIC2506 output)
80m typical at 3.3V (each MIC2506 output)
(MIC2505BN/M and MIC2506BN/M only)
1
2
3
4
CTL A OUT A
FLG A
FLG B
CTL B OUT B
MIC2506BM
MIC2505/2506
GND
IN
2.7V to 7.5V
8
5
7
6
0.1µF
100k 100k
Optional
Open Load
Detect Resistors
M9999-042704
Micrel

Related parts for MIC2505-1YM

MIC2505-1YM Summary of contents

Page 1

... Open-load detection is active when the switch is off. When off, a normal load pulls the output pin low. If the load is open, an optional, external, high-value resistor pulls the output pin high, triggering the fault flag. MIC2505-1 and -2 versions are tailored to Universal Serial Bus (USB) applications and do not include open-load detection. ...

Page 2

... MIC2505/2506 Ordering Information Part Number Control/Enable Single-Switch MIC2505BM Active-High MIC2505YM Active-High MIC2505BN Active-High MIC2505-1BM Active-High MIC2505-1YM Active-High MIC2505-1BN Active-High MIC2505-2BM Active-Low MIC2505-2YM Active-Low MIC2505-2BN Active-Low Dual Switch MIC2506BM Active-High MIC2506YM Active-High MIC2506BN Active-High Pin Configuration MIC2505/-1/-2 CTL 1 FLG 2 GND 3 GATE ...

Page 3

... April 2004 Pin Function Control (Input): TTL compatible control input. High input typically > 1.8V. Low input typically < 1.6V. MIC2505, MIC2505-1 and MIC2506 are active high. MIC2505-2 is active low. Fault Flag (Output): Active-low, open-drain output. If CTL is low, indicates open load. If CTL is high, indicates current limit, thermal shutdown, or UVLO ...

Page 4

... Error Flag Output Resistance Error Flag Off Current UVLO Threshold General Note: Devices are ESD protected, however, handling precautions recommended. General Note: All limits guaranteed by testing or statistical analysis. Note 1: MIC2505-1 and -2 versions have no open load detect feature. Note 2: Open-load threshold is the output voltage (V resistor M9999-042704 ≤ ...

Page 5

... MIC2505/2506 Test Circuits MIC2505/-1/-2 10k CTL V FLG FLG GND GATE Typical Characteristics Note 2 MIC2505 Turn-On, Turnoff Characteristics 1A TIME (ms) TIME ( s) MIC2506 Turn-On, Turnoff Characteristics 1A TIME ( s) TIME (ms) On-State Supply Current vs. Supply Voltage 200 180 160 140 120 100 SUPPLY VOLTAGE (V) April 2004 ...

Page 6

... TEMPERATURE ( C) M9999-042704 Off-State Supply Current vs. Temperature 2.0 1.5 1.0 0.5 0 -40 - 100 TEMPERATURE ( C) MIC2505 Turn-On Delay with External Gate Capacitance 1000 800 600 400 200 100 150 200 250 CAPACITANCE (nF) 6 Micrel Control Threshold vs. Temperature 2.5 V RISING 2.0 CTL 1 ...

Page 7

... OSC. CHARGE PUMP MIC2505/2505-1/2505-2 CTL A CTL B MIC2506 April 2004 THERMAL UVLO SHUTDOWN GATE CONTROL Not Included in MIC2505-1, -2 OPEN LOAD DETECT GND MIC2505-Series Block Diagram CHARGE PUMP THERMAL OSC. UVLO SHUTDOWN CHARGE PUMP GND MIC2506 Block Diagram 7 1.2V IN REFERENCE CURRENT LIMIT OUT ...

Page 8

... CTL, thermal shutdown, or UVLO (undervoltage lockout). An optional, external capacitor may be connected to the MIC2505 GATE to lengthen the rise time. This slows the turn on of the MOSFET output switch. (See “MIC2505 Turn-On Delay” graph.) Since this pin connects directly to the MOSFET gate, use ESD precautions when contacting components connected to this pin ...

Page 9

... GND Socket A gate capacitor may be added to the MIC2505 to slow the turn on time even more, reducing the inrush current. See “MIC2505 Turn-On Delay” graph. The UVLO feature insures that each time the card is removed and V of the output switch is discharged to zero volts. A controlled turn-on is executed each time a board is plugged in, even with multiple insertions ...

Page 10

... LDO Regulator V BUS IN OUT D+ D– GND GND 4.7 µF Bold lines indicate 0.1" wide, 1-oz. copper high-current traces. M9999-042704 100k 3.3V USB Controller MIC2505-2/-1 V+ ON/OFF EN 1.0 OVERCURRENT FLG µF GND GATE D+ D– GND Figure 4. Ganged-Switch Self-Powered Hub 10 Ferrite Bead ...

Page 11

... MIC2505/2506 Package Information 0.018 (0.57) 0.026 (0.65) 0.157 (3.99) 0.150 (3.81) 0.064 (1.63) 0.045 (1.14) April 2004 PIN 1 DIMENSIONS: INCH (MM) 0.380 (9.65) 0.370 (9.40) 0.135 (3.43) 0.125 (3.18) 0.380 (9.65) 0.130 (3.30) 0.320 (8.13) 0.100 (2.54) 0.0375 (0.952) 8-Pin Plastic DIP (N) ...

Page 12

... MIC2505/2506 MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. ...

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