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MC33128 데이터시트 PDF




Motorola Semiconductors에서 제조한 전자 부품 MC33128은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 MC33128 기능
기능 POWER MANAGEMENT CONTROLLER
제조업체 Motorola Semiconductors
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MC33128 데이터시트, 핀배열, 회로
Power Management Controller
The MC33128 is a power management controller specifically designed for
use in battery powered cellular telephone and pager applications. This
device contains all of the active functions required to interface the user to the
system electronics via a microprocessor. This integrated circuit consists of a
low dropout voltage regulator with power–up reset for MPU power, two low
dropout voltage regulators for independant powering of analog and digital
circuitry, and a negative charge pump voltage regulator for full depletion of
gallium arsenide MESFETs.
Also included are protective system shutdown features consisting of a
battery latch that is activated upon battery insertion, low battery voltage
shutdown, and a thermal over temperature detector. This device is available
in a 16–pin narrow body surface mount plastic package.
Three Positive Regulated Outputs Featuring Low Dropout Voltage
Negative Regulated Output for Full Depletion of GaAs MESFETs
MPU Power Up Reset
Battery Latch
Low Battery Shutdown
Pinned–Out Reference for MPU A/D Converter
Low Start–Up and Operating Current
Thermal Protection
Order this document by MC33128/D
MC33128
POWER MANAGEMENT
CONTROLLER
SEMICONDUCTOR
TECHNICAL DATA
16
1
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
ON/OFF
Toggle
Simplified Block Diagram
VCC VBB CPC
16
+
11
10 Control
9 Logic
Low Battery
Shutdown
Thermal
Protection
Reference
32
4
Charge
Pump
Negative
Standby
Regulator
Standby
Regulator 1
Standby
Regulator 2
MPU
Regulator
MPU Power
Up Reset
Gnd 6 12 Reference Output
MOTOROLA ANALOG IC DEVICE DATA
PIN CONNECTIONS
VBB Output
8
Output 4
CPC
7
5 Output 4
–2.5 V/1.0 mA
15 Output 1
3.0 V/30 mA
1 Output 2
3.0 V/60 mA
Output 3
14 3.0 V/20 mA
13
R VDD
Output 2 1
VBB Charge Pump
Capacitor Input
2
VBB Charge Pump
Capacitor Drive
3
VBB Output 4
Output 4 5
Gnd 6
Output 4 Charge Pump
Capacitor Input
7
Output 4 Charge Pump 8
Capacitor Drive
16 VCC
15 Output 1
14 Output 3
13 Reset Output
12 Reference Output
11 Power Up Input
10 Power Down Input
9 Battery Saver Input
(Top View)
I MPU
O
O
I VSS
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC33128D TA = – 30° to +60°C
SO–16
© Motorola, Inc. 1996
Rev 0
1




MC33128 pdf, 반도체, 판매, 대치품
MC33128
ELECTRICAL CHARACTERISTICS (VCC = 4.5 V, Cin = 33 µF with ESR 1.6 , CO = 4.7 µF with ESR 4.5 , IO1 = 30 mA,
IO2 = 60 mA, IO3 = 20 mA, IO4 = 1.0 mA, IOref = 10 mA [Note 2], TA = 25°C.)
Characteristic
Symbol
Min Typ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLOW BATTERY SHUTDOWN COMPARATOR (Pin 16)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁShutdown Threshold Voltage (VCC Decreasing, Pin 10 = Gnd)
Vth(LBSC)
2.25
2.4
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTOTAL DEVICE (Pin 16)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower Supply Current (No Load On All Outputs)
Operating
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁBattery Saver Input High (Pin 9 = 2.0 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁBattery Saver Input Low (Pin 9 0.8 V)
Standby (After Power Down Input Strobe)
ICC
– 2.6
– 270
– 8.0
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNOTE: 2.All outputs are fully loaded as stated in the Electrical Characteristics Table above, except for the one under test.
Max Unit
2.55 V
4.0 mA
330 µA
12 µA
Figure 1. Dropout Voltage
versus Source Current
160
120
Output 3
80
Output 1
Output 2
40 VCC = 2.9 V
TA = 25°C
See Note
0
0 20 40 60 80 100
IO, OUTPUT SOURCE CURRENT (mA)
Figure 2. Output 4 Voltage
versus Source Current
–3.0
VCC = 4.5 V
–2.5
–2.0 VCC = 3.15 V
–1.5
–1.0
–0.5 TA = 25°C
See Note
0
0 –1.0 –2.0 –3.0 –4.0
IO, OUTPUT 4 SOURCE CURRENT (mA)
–5.0
Figure 3. Reference Output
Voltage Change versus Source Current
0
–10
–20
Figure 4. VBB Output
Voltage Change versus Source Current
8.0
VCC = 4.5 V
6.0
VCC = 3.15 V
4.0
–30
TA = 25°C
–40 See Note
0 5.0 10 15 20
Iref, REFERENCE SOURCE CURRENT (mA)
25
2.0
TA = 25°C
See Note
0
0 0.5 1.0 1.5 2.0
IO, VBB OUTPUT SOURCE CURRENT (mA)
NOTE: All outputs are fully loaded as stated in the Electrical Characteristics Table above, except for the one under test.
4 MOTOROLA ANALOG IC DEVICE DATA

4페이지










MC33128 전자부품, 판매, 대치품
MC33128
Figure 6. Voltage Tripler and Switch Driver
VBB Generator
Oscillator
0.22
32
16
VBB
Vbat
33
0.1
4
4.7
8
4.7
7
Tripler
Output
R C2
C1
5 ON/OFF
Vbat
Controlled
Turn ON/OFF
RFB Time
RL
Tripler Output Voltage
Load Current
(mA)
VCC = 3.15 V
VCC = 4.5 V
0 7.96 12.01
0.5 7.48 11.54
1.0 7.24 11.29
1.5 6.99 11.04
2.0 6.62 10.69
Load Turn ON/OFF Time
High RFB
Critical RFB
Low RFB
External Switch
A low threshold N–channel MOSFET can be used to
switch the transmitting power amplifier (RL) ON and OFF. To
ensure that all of the available battery voltage appears
across the load, the MOSFET must be fully enhanced over
the system’s required operating voltage range. With the
addition of two Schottky diodes and two capacitors, the VBB
Generator can be made to function as a voltage tripler. The
table in Figure 6 shows the output voltage characteristics of
the tripler circuit.
In order to minimize adjacent channel splatter, the RF
power amplifier must be turned ON and OFF in a controlled
(soft) manner. The applied voltage rise and fall time, as well
as the rate of change in rise and fall time, must be tailored to
the amplifiers characteristics. The circuit consisting of
resistors R, RFB, and capacitors C1 and C2 is a simple
solution allowing the system designer a means to control the
ON and OFF time as well as the waveshape. Feedback
resistor RFB controls the waveshape. Capacitors C1 and C2
are usually of equal value.
MOTOROLA ANALOG IC DEVICE DATA
7

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