MIC2505 [MICREL]
Single 2A / Dual 1A / High-Side Switches; 2A单/双1A /高侧开关
| 型号： | MIC2505 |
| 厂家： | 
MICREL SEMICONDUCTOR |
| 描述： | Single 2A / Dual 1A / High-Side Switches |
| 文件： | 总12页 (文件大小：149K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MIC2505/2506
Single 2A / Dual 1A / High-Side Switches
General Description
Features
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.
• Low MOSFET on resistance to 2.7V
30mΩ typical at 5V (MIC2505-series)
35mΩ typical at 3.3V (MIC2505-series)
75mΩ typical at 5V (each MIC2506 output)
80mΩ typical at 3.3V (each MIC2506 output)
• 2.7V to 7.5V input
• 110µA typical on-state supply current
• 1µA 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
(MIC2505BN/M and MIC2506BN/M only)
• Open-drain fault flag
• 5ms (slow) turn-on and fast turnoff
• Logic-level control/enable input
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.
Applications
Overcurrent limiting is internally fixed and requires no exter-
nal components.
• USB Power Distribution
• 3.3V and 5V power management
• PC Card card inrush limiting switch
• Hot plug-in power supplies
• Battery-charger circuits
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
tailoredtoUniversalSerialBus(USB)applicationsanddonot
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
2.7V to 7.5V
2.7V to 7.5V
Pull-up
Pull-up
Resistors
Resistor
MIC2505BM
MIC2506BM
100k
Optional
Open Load
Detect Resistor
(MIC2505BN or
MIC2505BM
only)
100k 100k
(100k each)
(100k)
1
2
3
4
8
1
2
3
4
8
ON
OFF
A ON
A OFF
CTL
OUT
IN
CTL A OUT A
7
7
Optional
FAULT
FLG
FAULT A
FLG A
IN
Open Load
6
6
Detect Resistors
0.1µF
GND
GATE
OUT
IN
FAULT B
FLG B GND
CTL B OUT B
5
5
B ON
B OFF
0.1µF
Optional
Output Delay
Capacitor
Single and Dual Switch/Circuit Breakers with Open-Load Detection and Fault Output
April 1998
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MIC2505/2506
MIC2505/2506
Micrel
Ordering Information
Part Number Control/Enable Open-Load Detect Temperature Range
Package
Single-Switch
MIC2505BM
MIC2505BN
MIC2505-1BM
MIC2505-1BN
MIC2505-2BM
MIC2505-2BN
Dual Switch
MIC2506BM
MIC2506BN
Active-High
Active-High
Active-High
Active-High
Active-Low
Active-Low
Yes
Yes
No
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
8-pin SOIC
8-pin DIP
8-pin SOIC
8-pin DIP
8-pin SOIC
8-pin DIP
No
No
No
Active-High
Active-High
Yes
Yes
–40°C to +85°C
–40°C to +85°C
8-pin SOIC
8-pin DIP
Pin Configuration
MIC2505/-1/-2
MIC2506
CTL
FLG
OUT
IN
CTL A
FLG A
FLG B
CTL B
OUT A
IN
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
GND
GATE
OUT
IN
GND
OUT B
MIC2506
8 (OUT A)
7 (IN)
LOGIC,
CHARGE
PUMP
MIC2505/-1/-2
(CTL A) 1
(FLG A) 2
6, 8 (OUT)
5, 7 (IN)
LOGIC,
CHARGE
PUMP
(CTL A) 1
(FLG A) 2
LOGIC,
CHARGE
PUMP
(FLG B) 3
(CTL B) 4
(GATE A) 4
5 (OUT B)
3 (GND)
6 (GND)
8-Pin SOIC (M)
8-Pin DIP (N)
8-Pin SOIC (M)
8-Pin DIP (N)
MIC2505/2506
2
April 1998
MIC2505/2506
Micrel
Pin Description
Pin Number
Pin Number
Pin Name
Pin Function
MIC2505 series
MIC2506
1
2
1 / 4
CTL (A/B)
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.
2 / 3
FLG (A/B)
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.
MIC2505-1 and -2 do not support open-load detect.
3
4
6
GND
Ground: Return.
—
GATE
Output MOSFET Gate: Open for fastest rise time. Connect capacitor to
ground to slow rise time. (See MIC2505 Turn-On Delay graph)
5, 7
6, 8
7
IN
Supply Input: Output MOSFET drain. Also supplies IC’s internal circuitry.
Connect to supply.
MIC2505 series only: Pins 5 and 7 must be externally connected together.
8 / 5
OUT (A/B)
Switch Output: Output MOSFET source. Typically connect to switched side
of load. Output voltage can be pulled above input voltage in off mode.
MIC2505 series only: Pins 6 and 8 must be externally connected together.
Absolute Maximum Ratings
Operating Ratings
Supply Voltage (V ) ....................................................8.0V
Supply Voltage (V ) ................................... +2.7V to +7.5V
IN
IN
Fault Flag Voltage (V
Fault Flag Current (I
).............................................7.5V
Ambient Operating Temperature (T ) ........ –40°C to +85°C
FLG
A
) ............................................ 50mA
) .................................................7.5V
Thermal Resistance
FLG
OUT
SOIC (θ ) .........................................................160°C/W
Output Voltage (V
Output Current (I
JA
DIP (θ )............................................................105°C/W
JA
) ............................... Internally Limited
OUT
Gate Voltage (V
Control Input (V
) ......................................... V + 15V
GATE
IN
) ....................................... –0.3V to 15V
CTL
Storage Temperature (T ) ....................... –65°C to +150°C
A
Lead Temperature (Soldering 5 sec.) ....................... 260°C
April 1998
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MIC2505/2506
MIC2505/2506
Micrel
Electrical Characteristics
VIN = +5V; GATE = open; TA = 25°C, bold indicates –40°C ≤ TA ≤ +85°C; unless noted
Parameter
Condition
Min
Typ
Max
Units
Supply Current
MIC2505-1
MIC2506
V
CTL = logic 0, OUT = open
0.75
110
5
160
µA
µA
VCTL = logic 1, OUT = open
MIC2505-2
VCTL = logic 0, OUT = open
VCTL = logic 1, OUT = open
110
0.75
160
5
µA
µA
Control Input Voltage
Control Input Current
V
CTL = logic 0 → logic 1 transition
2.1
1.9
2.4
V
V
VCTL = logic 1 → logic 0 transition
0.8
VCTL = logic 0
0.01
0.01
1
1
µA
µA
VCTL = logic 1
Control Input Capacitance
Output MOSFET Resistance
1
pF
MIC2505 series
MIC2506
V
IN = 5V, TA = 25°C
VIN = 5V, –40°C < TA < +85°C
IN = 3.3V, TA = 25°C
30
50
60
60
75
mΩ
mΩ
mΩ
mΩ
V
35
VIN = 3.3V, –40°C < TA < +85°C
VIN = 5V, TA = 25°C
75
80
125
150
135
165
mΩ
mΩ
mΩ
mΩ
VIN = 5V, –40°C < TA < +85°C
VIN = 3.3V, TA = 25°C
VIN = 3.3V, –40°C < TA < +85°C
Output Turn-On Delay
Output Turn-On Rise Time
Output Turnoff Delay
MIC2505 series RL = 10Ω, CGATE = 0
MIC2506 RL = 10Ω each output
MIC2505 series RL = 10Ω, CGATE = 0
MIC2506 RL = 10Ω each output
MIC2505 series RL = 10Ω, CGATE = 0
MIC2506 RL = 10Ω each output
MIC2505 series RL = 10Ω, CGATE = 0
200
100
500
200
850
700
3000
2000
0.7
2000
2000
7500
6000
20
µs
µs
µs
µs
µs
µs
µs
µs
µA
A
0.8
20
Output Turnoff Fall Time
1.5
20
MIC2506
RL = 10Ω each output
0.7
20
Output Leakage Current
Current Limit Threshold
10
MIC2505 series
MIC2506
2
1
4
2
1
3
A
Open Load Threshold, Note 1
VCTL = logic low, Note 2
0.5
1.5
V
Overtemperature Shutdown
Threshold
TJ increasing
TJ decreasing
135
125
°C
°C
Error Flag Output Resistance
V
IN = 5V, IL = 10mA
10
15
25
40
Ω
Ω
VIN = 3.3V, IL = 10mA
Error Flag Off Current
UVLO Threshold
VFLAG = 5V
0.01
1
µA
VIN = increasing
2.2
2.0
2.5
2.3
2.7
2.5
V
V
VIN = decreasing
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
) where FLG becomes active (low) when CTL is low. OUT is pulled high by a 100k external
OUT
resistor to V
.
IN
MIC2505/2506
4
April 1998
MIC2505/2506
Micrel
Test Circuits
+5V
+5V
10kΩ
MIC2506BM
CTL A OUT A
MIC2505/-1/-2
10kΩ
10kΩ
10Ω
A ON
A OFF
CTL
OUT
IN
VFLG
VFLG A
VFLG B
FLG
FLG A IN
1µF
GND
GATE
OUT
IN
FLG B GND
CTL B OUT B
10Ω
B ON
B OFF
10Ω
1µF
Typical Characteristics Note 2
MIC2505 Turn-On, Turnoff
Output On Resistance
vs. Temperature
Output On Resistance
vs. Supply Voltage
Characteristics
10
100
100
MIC2506
5
0
MIC2506
80
60
40
20
0
80
60
40
20
0
-65
4
MIC2505
MIC2505
2
0
RL = 5Ω
(IL = 1A)
-2
-2
0
2
4
-62
0
2
4
2
8
2
3
4
5
6
7
8
-40 -20
0
20 40 60 80 100
TIME (ms)
TIME (µs)
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
UVLO Threshold Voltage
vs. Temperature
MIC2506 Turn-On, Turnoff
Characteristics
Error Flag Voltage
vs. Error Flag Current
3.0
2.5
2.0
1.5
10
5
400
300
200
100
0
FLG = ACTIVE
VDD = 3.3V
VIN RISING
0
-65
4
VIN FALLING
2
RL = 5Ω
(IL = 1A)
VDD = 5V
0
-2
-2
-40 -20
0
20 40 60 80 100
-1
0
1
0
2
4
6
0.1
1
10
100
TEMPERATURE (°C)
TIME (µs)
TIME (ms)
ERROR FLAG CURRENT (mA)
Control Threshold
vs. Supply Voltage
On-State Supply Current
vs. Supply Voltage
Off-State Supply Current
vs. Supply Voltage
200
180
160
140
120
100
80
2.0
1.5
1.0
0.5
0
2.5
2.0
1.5
1.0
VCTL RISING
60
VCTL FALLING
40
20
0
2
3
4
5
6
7
2
3
4
5
6
7
8
2
3
4
5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
April 1998
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MIC2505/2506
MIC2505/2506
Micrel
Control Threshold
vs. Temperature
On-State Supply Current
vs. Temperature
Off-State Supply Current
vs. Temperature
200
180
160
140
120
100
80
2.0
1.5
1.0
0.5
0
2.5
2.0
1.5
1
VCTL RISING
VCTL FALLING
60
40
20
0
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
MIC2505 Turn-On Delay
with External Gate Capacitance
1000
800
600
400
200
0
0
50
100 150 200 250
CAPACITANCE (nF)
MIC2505/2506
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April 1998
MIC2505/2506
Micrel
Block Diagrams
CTL
THERMAL
SHUTDOWN
1.2V
REFERENCE
IN
OSC.
UVLO
CHARGE
PUMP
CURRENT
LIMIT
GATE
CONTROL
Not Included in
MIC2505-1, -2
OPEN LOAD
DETECT
OUT
FLG
MIC2505/2505-1/2505-2
GND
GATE
MIC2505-Series Block Diagram
FLG A
OUT A
OPEN LOAD
DETECT
CTL A
CHARGE
PUMP
GATE
CONTROL
CURRENT
LIMIT
THERMAL
SHUTDOWN
1.2V
REFERENCE
IN
OSC.
UVLO
CHARGE
PUMP
CURRENT
LIMIT
GATE
CONTROL
CTL B
OPEN LOAD
DETECT
OUT B
FLG B
MIC2506
GND
MIC2506 Block Diagram
April 1998
7
MIC2505/2506
MIC2505/2506
Micrel
Duplicate IN and OUT leads are not internally connected.
Connect both IN pins to the supply. Connect both OUT leads
to the load.
Functional Description
The MIC2505-series and MIC2506 are high-side N-Channel
switches. The MIC2505, MIC2505-1, and MIC2506 have
active-high enable inputs. The MIC2505-2 has an active-low
input. Fault conditions inhibit output transistor turn-on or
turnoff when enabled.
Thermal Shutdown
Thermal shutdown shuts off the output MOSFET and signals
the fault flag if the die temperature exceeds 135°C. 10°C of
hysteresis prevents the switch from turning on until the die
temperature drops to 125°C.
Control Input
CTL (control input) activates the oscillator, thermal shut-
down, UVLO, 1.2V reference, and gate control circuits. If
there are no fault conditions, the output MOSFET turns on
when enabled.
Overtemperature detection functions only when the control
input is enabled (output MOSFET is on). Both MIC2506
outputs are shut off during overtemperature, and both flags
will go low.
Reference
Undervoltage Lockout
A1.2Vbandgapreferencesuppliesaregulatedvoltagetothe
thermal shutdown and undervoltage lockout circuits. The
reference is only active when CTL is enabled.
UVLO (undervoltage lockout) prevents the output MOSFET
from turning on until V (input voltage) exceeds 2.5V typical.
IN
After the switch turns on, if V drops below 2.3V typical,
IN
Oscillator/Charge Pump
UVLO shuts off the output MOSFET and turns the fault flag
The oscillator produces an 80kHz square wave output which
drives the charge pump. The oscillator is enabled when CTL
is active.
on (active low) until V drops below 1.5V.
IN
Undervoltage detection functions only when the control input
is enabled (output MOSFET is on).
The charge pump is a voltage quintupler (5×). The charge
pump capacitors are self contained.
Overcurrent Limit
The overcurrent limit is preset internally. The preset level
prevents damage to the output MOSFET but allows a mini-
mum current of 2A through the output MOSFET of the
MIC2505-series and 1A for each output MOSFET of the
MIC2506. Output current is monitored by sensing the voltage
drop across the output MOSFET drain metal resistance.
Gate Control
The gate control circuit charges the output MOSFET gate
from the charge pump output or discharges the MOSFET
gate to ground as determined by 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.)SincethispinconnectsdirectlytotheMOSFET
gate, use ESD precautions when contacting components
connected to this pin. Leakage resistance may increase turn-
on times.
Overcurrentdetectionfunctionsonlywhenthecontrolinputis
enabled (output MOSFET is on) and V is above the UVLO
IN
threshold.
Open-Load Detection
Open-load detection is available only on the MIC2505 and
MIC2506. The open-load detection feature is not included in
the MIC2505-1 or -2 versions.
Input and Output
Open-load detection indicates the absence of an output load
by activating the fault flag. Open-load detection is optional
and is enabled by connecting a high-value pull-up resistor
between IN and OUT. If there is no load, the circuit detects a
highOUT(output)voltage(typically≥1V)andsignalsthefault
flag. Under normal conditions, the low resistance of a typical
loadpullsOUTlow. Open-loaddetectionfunctionsonlywhen
the control input is low (output MOSFET is off).
IN(input)isthesupplyconnectiontothelogiccircuitryandthe
drainoftheoutputMOSFET.OUT(output)isthesourceofthe
output MOSFET. In a typical circuit, current flows through the
switch from IN to OUT toward the load.
The output MOSFET and driver circuitry are also designed to
allow the MOSFET source to be externally forced to a higher
voltage than the drain (V
> V ) when the output switch is
OUT
IN
offandV >UVLOminimum. Inthissituation, theMIC2505/6
IN
Fault Flag
avoids undesirable drain to body diode reverse current flow
by grounding the body when the switch is off. (The conven-
tional method for optimum turn-on threshold has the source
connectedtothebody.Thiswouldallowalargecurrenttoflow
FLG is an N-channel, open-drain MOSFET output. The fault-
flag is active (low) for one or more of the following conditions:
open load (except MIC2505-1 and -2 versions), undervolt-
age, current limit, or thermal shutdown. The flag output
MOSFET is capable of sinking a 10mA load to typically
100mV above ground.
when V
> V
+ 0.6V.)
source
drain
MIC2505 Series Only
MIC2505/2506
8
April 1998
MIC2505/2506
Micrel
U2 is off, this feature prevents current flow from the load (5V)
backward through U2 to the 3.3V supply. (If a discrete
MOSFET and driver were used, the MOSFET’s internal body
diode would short the 5V load to the 3.3V supply.)
Applications Information
Supply Filtering
A 0.1µF to 1µF bypass capacitor from IN to GND, located at
the device is strongly recommended to control supply tran-
sients. Without a bypass capacitor, an output short may
cause sufficient ringing on the input (from supply lead induc-
tance) to destroy the internal control circuitry.
FLG will be active (low) on any switch that is off whenever the
load voltage is greater than the open load threshold (approxi-
mately 1V) except for MIC2505-1 and MIC2505-2.
+5V
+3.3V
Logic-High = 5V Output
Logic-Low = 3.3V Output
Input transients must not exceed the absolute maximum
supply voltage (V
= 7.5V) even for a short duration.
IN max
U1
U2
MIC2505BM
MIC2505BM
2.7V to 7.5V
1N4148
1
8
1
2
3
4
8
(optional)
CTL
OUT
IN
CTL
OUT
IN
MIC2505BM
2
3
4
7
7
6
FLG
FLG
1
2
3
4
8
ON
OFF
CTL
OUT
IN
6
GND
GATE
OUT
IN
GND
GATE
OUT
IN
7
FLG
5
5
6
0.1µF
0.1µF
GND
GATE
OUT
IN
0.1µF to 1µF
5
Figure 1. Supply Bypassing
Figure 2. 5V/3.3V Switch Concept
The bypass capacitor may be omitted only if board design
precautions are followed, such as using extremely short
supply leads or power and ground planes.
This circuit’s function would otherwise require a dual driver,
two MOSFETs, plus two diodes (or a dual driver plus four
MOSFETs).
Control Input
CTL must be driven logic high or logic low, or be pulled high
orlowforaclearlydefinedinput. Floatingtheinputmaycause
unpredictableoperation.Addadiodeclampifnegativespikes
may occur. See Figure 2.
Hot Plug-In Applications (Soft-Start)
The MIC2505/6 family can be used to protect the socket-side
andcard-sideofasupplycircuitfromtransientscausedwhen
a capacitive load is connected to an active supply.
Open-Load Detection
The switch presents a high impedance when off, and slowly
becomes a low impedance as it turns on. This reduces the
inrush current and related voltage drop that result from
charging a capacitive load.
Refer to “Typical Applications” (first page). Open-load detec-
tion is available only on the MIC2505 and MIC2506. For USB
power distribution applications, the open-load detection fea-
ture is not included in the MIC2505-1 or -2 versions.
The optional open-load detection resistor supplies a small
pull-up current to the load when the output switch is off. (A
100k resistor will draw 50µA from a 5V supply.) Normally, the
load dominates, pulling OUT low. If the load is absent, the
optionalresistorpullsOUThigh,activatingthefaultflagifCTL
is off.
Power Control
Circuitry
3.3V
MIC2505BM
1
2
3
4
8
CTL
OUT
IN
7
FLG
Capacitive
Load
6
GND
GATE
OUT
IN
5
When a load is switched off with CTL, capacitance on the
output may cause the open-load function to pull the flag low
until the capacitor is discharged below approximately 2.4V.
0.1µF
GND
Socket
Card
Omit the pull-up resistor when open load detection is not
required and for minimum off-state supply current.
Figure 3. Hot Plug-In Concept
Power Bus Switch
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
The MIC2505/6 family features a MOSFET reverse current
flow prevention circuit. This prevents current from flowing
backwards (from OUT to IN) when CTL is disabled as long as
that each time the card is removed and V = 0 that the gate
IN
of the output switch is discharged to zero volts. A controlled
turn-onisexecutedeachtimeaboardispluggedin, evenwith
multiple insertions.
V
is above UVLO minimum. In Figure 2, when U1 is on and
IN
April 1998
9
MIC2505/2506
MIC2505/2506
Micrel
Applications Information
USB Application
Figure 4 depicts a low cost and robust implementation of a
four-port, self-powered USB hub circuit employing ganged
overcurrent protection.
Ferrite
Bead
(+)
4.45V to 5.25V
3.5A max.
(–)
100k
VBUS
D+
33µF
MIC5203-3.3
MIC5207-3.3
Downstream
LDO Regulator
3.3V USB Controller
V+
MIC2505-2/-1
USB
Port 1
0.01µF
D–
VBUS
33µF
33µF
33µF
IN
OUT
GND
ON/OFF
OVERCURRENT
EN
OUT
IN
GND
500mA max.
D+
1.0
µF
FLG
GND
GATE
D–
OUT
IN
VBUS
D+
GND
4.7
µF
Downstream
USB
Port 2
500mA max.
0.1µF
0.01µF
0.01µF
0.01µF
D+
D–
D–
GND
GND
Bold lines indicate
0.1" wide, 1-oz. copper
high-current traces.
VBUS
D+
Downstream
USB
Port 3
500mA max.
D–
GND
VBUS
D+
Downstream
USB
Port 4
500mA max.
D–
33µF
GND
Data
Figure 4. Ganged-Switch Self-Powered Hub
MIC2505/2506
10
April 1998
MIC2505/2506
Micrel
Package Information
0.026 (0.65)
MAX)
PIN 1
0.157 (3.99)
0.150 (3.81)
DIMENSIONS:
INCHES (MM)
0.020 (0.51)
0.013 (0.33)
0.050 (1.27)
TYP
45°
0.0098 (0.249)
0.0040 (0.102)
0.010 (0.25)
0.007 (0.18)
0°–8°
0.197 (5.0)
0.189 (4.8)
0.050 (1.27)
0.016 (0.40)
SEATING
PLANE
0.064 (1.63)
0.045 (1.14)
0.244 (6.20)
0.228 (5.79)
8-Pin SOIC (M)
PIN 1
DIMENSIONS:
INCH (MM)
0.380 (9.65)
0.370 (9.40)
0.255 (6.48)
0.245 (6.22)
0.135 (3.43)
0.125 (3.18)
0.300 (7.62)
0.013 (0.330)
0.010 (0.254)
0.380 (9.65)
0.320 (8.13)
0.018 (0.57)
0.100 (2.54)
0.130 (3.30)
0.0375 (0.952)
8-Pin DIP (N)
April 1998
11
MIC2505/2506
MIC2505/2506
Micrel
MICREL INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or
other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.
© 1998 Micrel Incorporated
MIC2505/2506
12
April 1998
相关型号：
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