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參數(shù)資料
| 型號(hào)： | MDC5000T1 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | SILICON SMALLBLOCK INTEGRATED CIRCUIT |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO4 |
| 封裝： | SOT-143, 4 PIN |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大小： | 215K |
| 代理商： | MDC5000T1 |
1
Motorola Small–Signal Transistors, FETs and Diodes Device Data
Maintains Stable Bias Current in Various Discrete Bipolar Junction and Field
Effect Transistors
Provides Stable Bias Using a Single Component Without Use of Emitter Ballast
and Bypass Components
Operates Over a Wide Range of Supply Voltages Down to 1.8 Vdc
Reduces Bias Current Variation Due to Temperature and Unit–to–Unit Parametric
Changes
Consumes
0.5 mW at VCC = 2.75 V
This device provides a reference voltage and acts as a DC feedback element
around an external discrete, NPN BJT or N–Channel FET. It allows the external
transistor to have its emitter/source directly grounded and still operate with a stable
collector/drain DC current. It is primarily intended to stabilize the bias of discrete RF
stages operating from a low voltage regulated supply, but can also be used to stabilize
the bias current of any linear stage in order to eliminate emitter/source bypassing and
achieve tighter bias regulation over temperature and unit variations. This device is
intended to replace a circuit of three to six discrete components and is available in a
SOT–143 package.
The combination of low supply voltage, low quiescent current drain, and small
package make it ideal for portable communications applications such as:
Cellular Telephones
Pagers
PCN/PCS Portables
PCMCIA RF Modems
Cordless Phones
Broadband Transceivers and Other Portable Wireless Products
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Voltage
VCC
TA
Tstg
TJ
VCEO
15
Vdc
Ambient Operating Temperature Range
–40 to +85
°
C
Storage Temperature Range
–65 to +150
°
C
Junction Temperature
150
°
C
Collector Emitter Voltage (Q2)
–15
V
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Total Device Power Dissipation
(FR–5 PCB of 1
″
×
0.75
″
×
0.062
″
, TA = 25
°
C)
Derate above 25
°
C
PD
225
1.8
mW
mW/
°
C
Thermal Resistance, Junction to Ambient
R
θ
JA
556
°
C/W
DEVICE MARKING
MDC5000T1 = E5
SMALLBLOCK is a trademark of Motorola, Inc.
Order this document
by MDC5000T1/D
SEMICONDUCTOR TECHNICAL DATA
SILICON
SMALLBLOCK
INTEGRATED CIRCUIT
CASE 318A–05, Style 9
SOT–143
INTERNAL CIRCUIT DIAGRAM
VCC (3)
GND (1)
Vref (4)
Iout (2)
Q1
Q2
R1
R2
R3
R4
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