Datasheet MC33128D Datasheet (Motorola)



SEMICONDUCTOR

TECHNICAL DATA

POWER MANAGEMENT

CONTROLLER

Order this document by MC33128/D

Device

Operating

Temperature Range

Package

D SUFFIX

PLASTIC PACKAGE

CASE 751B

(SO–16)

PIN CONNECTIONS

(Top View)

ORDERING INFORMATION

MC33128D TA = – 30° to +60°C SO–16

16

1

Output 2

VBB Charge Pump

Capacitor Input

VBB Charge Pump

Capacitor Drive

Gnd

Output 4 Charge Pump

Capacitor Input

V

CC

Battery Saver Input

VBB Output

Output 4

Output 4 Charge Pump

Capacitor Drive

Output 1
Output 3
Reset Output
Reference Output
Power Up Input
Power Down Input

116

15
14
13
12
11
10

9

2
3
4
5
6
7
8

1

MOTOROLA ANALOG IC DEVICE DATA

  

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

Simplified Block Diagram

ON/OFF

Toggle

V

CC

VBB CPC

VBB Output

Control

Logic

Low Battery

Shutdown

Thermal

Protection

Reference

Charge

Pump

Negative

Standby

Regulator

Standby

Regulator 1

Standby

Regulator 2

MPU

Regulator

MPU Power

Up Reset

Reference OutputGnd 6 12

9

10

11

16 3 2 4

8

7

5

15

1

14

13

V

DD

V

SS

R

I
O
O

I

Output 4
CPC

Output 4
–2.5 V/1.0 mA

Output 1

3.0 V/30 mA

Output 2

3.0 V/60 mA
Output 3

3.0 V/20 mA

MPU

+

 Motorola, Inc. 1996 Rev 0

MC33128

2

MOTOROLA ANALOG IC DEVICE DATA

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Supply Input Voltage (Pin 16)

V

CC

+7.0

V

ББББББББББББ

Á

Input Voltage Range Power Up, Power Down,
and Battery Saver Inputs (Pins 11, 10, 9)

ÁÁÁ

Á

V

in

ÁÁÁ

Á

–1.0 to

VCC + 1.0

Á

Á

V

Charge Pump Capacitor Drive Outputs,
Source or Sink Current (Pins 3, 8)

I

O(max)

30

mA

ББББББББББББ

Á

Schottky Diode Forward Current

(Pins 16 to 2, 2 to 4, and 7 to 6)

ÁÁÁ

Á

I

F(max)

ÁÁÁ

Á

30

Á

Á

mA

ББББББББББББ

Á

ББББББББББББ

Á

ББББББББББББ

Á

Output Source Current (Note 1)

Regulator Output 1 (Pin 15)
Regulator Output 2 (Pin 1)
Regulator Output 3 (Pin 14)
Regulator Output 4 (Pin 5)
Reference (Pin 12)

ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á

I

Source

ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á

150
250

50
10
40

Á

Á

Á

Á

Á

Á

mA

Reset Sink Current (Pin 13)

I

Sink

5.0

mA

ББББББББББББ

Á

ББББББББББББ

Á

Power Dissipation and Thermal Characteristic

D Suffix, Plastic Package Case 751B

Maximum Power Dissipation @ TA = 50°C
Thermal Resistance, Junction–to–Air

ÁÁÁ

Á

ÁÁÁ

Á

P

D

R

∅JA

ÁÁÁ

Á

ÁÁÁ

Á

560
180

Á

Á

Á

Á

mW

°C/W

Operating Junction Temperature

T

J

+150

°C

Operating Ambient Temperature (Note 1)

T

A

–30 to +60

°C

Storage Temperature

T

stg

–60 to +150

°C

ELECTRICAL CHARACTERISTICS (V

CC

= 4.5 V, Cin = 33 µF with ESR ≤ 1.6 Ω, CO = 4.7 µF with ESR ≤ 4.5 Ω, IO1 = 30 mA,

I

O2

= 60 mA, IO3 = 20 mA, IO4 = 1.0 mA, I

Oref

= 10 mA [Note 2], TA = 25°C.)

Characteristic

Symbol Min Typ Max Unit

POWER UP INPUT (Pin 11)

Low State Input Threshold Voltage

V

th(toggle)

VCC – 1.5

VCC – 1.2

VCC – 0.8

V

Input Current (Vin = VO3)

БББББ

I

in(toggle)

–

–

120

ÁÁÁ

µA

Internal Pull Up Resistance

БББББ

R

PU(ON/OFF)

10

20

30

ÁÁÁ

kΩ

POWER DOWN INPUT (Pin 10)

High State Input Threshold Voltage (Places IC in Standby Mode)

БББББ

V

th(PDI)

1.3

1.5

1.8

ÁÁÁ

V

Input Current (Vin = VO3)

БББББ

I

in(PDI)

–

–

120

ÁÁÁ

µA

BATTERY SAVER INPUT (Pin 9)

High State Input Threshold Voltage (VBB, VO1, VO2, VO4 Activated)

БББББ

V

th(BSI)

1.2

1.4

1.7

ÁÁÁ

V

Input Current (Vin = VO3)

БББББ

I

in(BSI)

–

–

120

ÁÁÁ

µA

VBB GENERATOR

Oscillator Frequency

БББББ

f

OSC

85

95

105

ÁÁÁ

kHz

Oscillator Duty Cycle

БББББ

DC

35

50

65

ÁÁÁ

%

БББББББББББББББББ

Á

Charge Pump Capacitor Drive Output Voltage Swing (Pin 3)

High State (I

Source

= 3.0 mA)

Low State (I

Sink

= 3.0 mA)

БББББ

ÁÁÁÁ

Á

V

OH

V

OL

ÁÁ

Á

–
–

ÁÁ

Á

VCC – 0.9

0.15

ÁÁ

Á

–
–

ÁÁÁ

ÁÁ

Á

V

БББББББББББББББББ

Á

Schottky Diode (Pins 2, 4)

Forward Voltage Drop (IF = 3.0 mA)
Reverse Leakage Current (VBB = 7.0 V)

БББББ

ÁÁÁÁ

Á

V

F

I

L

ÁÁ

Á

–
–

ÁÁ

Á

0.5

0.01

ÁÁ

Á

–
–

ÁÁÁ

ÁÁ

Á

V

µA

БББББББББББББББББ

Á

Output Voltage (Pin 4)

VCC = 4.5 V
VCC = 2.9 V

БББББ

ÁÁÁÁ

Á

V

O(VBB)

ÁÁ

Á

–
–

ÁÁ

Á

7.9

4.4

ÁÁ

Á

–
–

ÁÁÁ

ÁÁ

Á

V

NOTES: 1. Maximum package power dissipation limits must be observed.

2.All outputs are fully loaded as stated in the Electrical Characteristics Table above, except for the one under test.

MC33128

3

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS (V

CC

= 4.5 V, Cin = 33 µF with ESR ≤ 1.6 Ω, CO = 4.7 µF with ESR ≤ 4.5 Ω, IO1 = 30 mA,

I

O2

= 60 mA, IO3 = 20 mA, IO4 = 1.0 mA, I

Oref

= 10 mA [Note 2], TA = 25°C.)

Characteristic UnitMaxTypMinSymbol

REGULATOR OUTPUT 1 (Pin 15)

Output Voltage (VCC = 3.15 V to 4.5 V, IO1 = 30 mA)

БББББ

Reg

line1

2.9

3.0

3.1

ÁÁÁ

V

Load Regulation (IO1 = 0 mA to 35 mA)

БББББ

Reg

load1

–

5.0

30

ÁÁÁ

mV

Dropout Voltage (VCC = 2.9 V , IO1 = 30 mA)

БББББ

Vin – V

O1

–

–

0.1

ÁÁÁ

V

БББББББББББББББББ

Á

Power Supply Rejection Ratio

f = 120 Hz
f = 100 kHz

БББББ

ÁÁÁÁ

Á

PSRR 1

ÁÁ

Á

–
–

ÁÁ

Á

70
40

ÁÁ

Á

–
–

ÁÁÁ

ÁÁ

Á

dB

Turn ON Delay Time (Battery Saver Input to 90% VO1 Output)

БББББ

t

DLY1

–

0.2

2.0

ÁÁÁ

ms

REGULATOR OUTPUT 2 (Pin 1)

Output Voltage (VCC = 3.15 V to 4.5 V, IO2 = 60 mA)

БББББ

Reg

2.9

3.0

3.1

ÁÁÁ

V

Load Regulation (IO2 = 0 mA to 60 mA)

БББББ

Reg

load2

–

5.0

40

ÁÁÁ

mV

Dropout Voltage (VCC = 2.9 V , IO2 = 60 mA)

БББББ

Vin – V

O2

–

–

0.11

ÁÁÁ

V

БББББББББББББББББ

Á

Power Supply Rejection Ratio

f = 120 Hz
f = 100 kHz

БББББ

ÁÁÁÁ

Á

PSRR 2

ÁÁ

Á

–
–

ÁÁ

Á

70
40

ÁÁ

Á

–
–

ÁÁÁ

ÁÁ

Á

dB

Turn ON Delay Time (Battery Saver Input to 90% VO2 Output)

БББББ

t

DLY2

–

0.2

2.0

ÁÁÁ

ms

REGULATOR OUTPUT 3 (Pin 14)

Output Voltage (VCC = 3.15 V to 4.5 V, IO3 = 20 mA)

БББББ

Reg

line3

2.9

3.0

3.1

ÁÁÁ

V

Load Regulation (IO3 = 0 mA to 20 mA)

БББББ

Reg

load3

–

5.0

25

ÁÁÁ

mV

Dropout Voltage (VCC = 2.9 V , IO3 = 20 mA)

БББББ

Vin – V

O3

–

–

0.1

ÁÁÁ

V

БББББББББББББББББ

Á

БББББББББББББББББ

Á

Power Supply Rejection Ratio

f = 120 Hz
f = 100 kHz

БББББ

ÁÁÁÁ

Á

ÁÁÁÁ

Á

PSRR 3

ÁÁ

Á

ÁÁ

Á

–
–

ÁÁ

Á

ÁÁ

Á

70
40

ÁÁ

Á

ÁÁ

Á

–
–

ÁÁÁ

ÁÁ

Á

ÁÁ

Á

dB

Turn ON Delay Time (ON/OFF Toggle Input to 90% VO3 Output)

БББББ

t

DLY3

–

0.5

3.0

ÁÁÁ

ms

REGULATOR OUTPUT 4 (Pin 5)

Output Voltage (VCC = 3.15 V to 4.5 V, IO4 = 1.0 mA)

БББББ

Reg

line4

–2.35

–2.5

–2.65

ÁÁÁ

V

Load Regulation (IO4 = 0 mA to 1.0 mA)

БББББ

Reg

load4

–

5.0

20

ÁÁÁ

mV

БББББББББББББББББ

Á

БББББББББББББББББ

Á

Power Supply Rejection Ratio

f = 120 Hz
f = 100 kHz

БББББ

ÁÁÁÁ

Á

ÁÁÁÁ

Á

PSRR 4

ÁÁ

Á

ÁÁ

Á

–
–

ÁÁ

Á

ÁÁ

Á

70
40

ÁÁ

Á

ÁÁ

Á

–
–

ÁÁÁ

ÁÁ

Á

ÁÁ

Á

dB

Schottky Diode Forward Voltage Drop (Pins 7, 6, IF = 1.0 mA)

БББББ

V

F

–

0.5

–

ÁÁÁ

V

БББББББББББББББББ

Á

Charge Pump Capacitor Drive Output Voltage Swing (Pin 8)

High State (I

Source

= 1.0 mA)

Low State (I

Sink

= 1.0 mA)

БББББ

ÁÁÁÁ

Á

V

OH

V

OL

ÁÁ

Á

–
–

ÁÁ

Á

VBB – 0.2 5

0.15

ÁÁ

Á

–
–

ÁÁÁ

ÁÁ

Á

V

Turn ON Delay Time (Battery Saver Input to 90% VO4 Output)

БББББ

t

DLY4

–

4.0

10

ÁÁÁ

ms

REFERENCE OUTPUT (Pin 12)

Output Voltage (IO = 0 mA to 10 mA)

БББББ

Reg

load

1.46

1.5

1.54

ÁÁÁ

V

ББББББББББББББББББББББББББББББББ

MPU POWER UP RESET COMPARATOR (Pin 13)

БББББББББББББББББ

Á

БББББББББББББББББ

Á

Threshold Voltage

Low State Output (VO3 Decreasing)
Hysteresis (VO3 Increasing)

БББББ

ÁÁÁÁ

Á

ÁÁÁÁ

Á

V

th(low)

V

H

ÁÁ

Á

ÁÁ

Á

2.5
40

ÁÁ

Á

ÁÁ

Á

2.6
60

ÁÁ

Á

ÁÁ

Á

2.7

100

ÁÁÁ

ÁÁ

Á

ÁÁ

Á

V

mV

Output Sink Saturation (I

Sink

= 100 µA, VO3 = 2.5 V to 1.0 V)

БББББ

V

CE(sat)

–

130

300

ÁÁÁ

mV

Internal Pull–up Resistance

БББББ

R

PU

10

26

40

ÁÁÁ

kΩ

БББББББББББББББББ

High State Output Voltage (VO3 = 2.8 V)

БББББ

ÁÁÁÁ

V

OH

ÁÁ

0.95 V

O3

ÁÁ

V

O3

ÁÁ

–

ÁÁÁ

ÁÁ

V

NOTE: 2.All outputs are fully loaded as stated in the Electrical Characteristics Table above, except for the one under test.

MC33128

4

MOTOROLA ANALOG IC DEVICE DATA

ELECTRICAL CHARACTERISTICS

(VCC = 4.5 V, Cin = 33 µF with ESR ≤ 1.6 Ω, CO = 4.7 µF with ESR ≤ 4.5 Ω, IO1 = 30 mA,

I

O2

= 60 mA, IO3 = 20 mA, IO4 = 1.0 mA, I

Oref

= 10 mA [Note 2], TA = 25°C.)

Characteristic UnitMaxTypMinSymbol

LOW BATTERY SHUTDOWN COMPARATOR (Pin 16)

Shutdown Threshold Voltage (VCC Decreasing, Pin 10 = Gnd)

БББББ

V

th(LBSC)

2.25

2.4

2.55

ÁÁÁ

V

TOTAL DEVICE (Pin 16)

БББББББББББББББББ

Á

БББББББББББББББББ

Á

БББББББББББББББББ

Á

Power Supply Current (No Load On All Outputs)

Operating

Battery Saver Input High (Pin 9 = 2.0 V)
Battery Saver Input Low (Pin 9 ≤ 0.8 V)

Standby (After Power Down Input Strobe)

БББББ

ÁÁÁÁ

Á

ÁÁÁÁ

Á

ÁÁÁÁ

Á

I

CC

ÁÁ

Á

ÁÁ

Á

ÁÁ

Á

–
–
–

ÁÁ

Á

ÁÁ

Á

ÁÁ

Á

2.6

270

8.0

ÁÁ

Á

ÁÁ

Á

ÁÁ

Á

4.0

330

12

ÁÁÁ

ÁÁ

Á

ÁÁ

Á

ÁÁ

Á

mA

µA
µA

NOTE: 2.All outputs are fully loaded as stated in the Electrical Characteristics Table above, except for the one under test.

0

8.0

0

–3.0

0

0

0

160

V ,

O

V OUTPUT VOLTAGE (V)

IO, VBB OUTPUT SOURCE CURRENT (mA)

V

O

, OUTPUT 4 VOL TAGE (V)

IO, OUTPUT 4 SOURCE CURRENT (mA)

V

ref

, OUTPUT VOLTAGE CHANGE (mV)

I

ref

, REFERENCE SOURCE CURRENT (mA)

Figure 1. Dropout Voltage

versus Source Current

Figure 2. Output 4 Voltage

versus Source Current

Figure 3. Reference Output

Voltage Change versus Source Current

IO, OUTPUT SOURCE CURRENT (mA)

Figure 4. VBB Output

Voltage Change versus Source Current

VCC = 2.9 V
TA = 25

°

C

See Note

Output 2

Output 1

Output 3

20 40 60 80 100

120

80

40

0

V – V , DROPOUT VOLTAGE (mV)

Oin

TA = 25°C
See Note

VCC = 3.15 V

–1.0 –2.0 –3.0 –4.0 –5.0

–2.5

–2.0

–1.5

–1.0

–0.5

0

VCC = 4.5 V

TA = 25°C
See Note

VCC = 3.15 V

5.0 10 15 20 25

–10

–20

–30

–40

∆

BB

6.0

4.0

2.0

0

0.5 1.0 1.5 2.0

TA = 25°C
See Note

VCC = 4.5 V

NOTE: All outputs are fully loaded as stated in the Electrical Characteristics Table above, except for the one under test.

MC33128

5

MOTOROLA ANALOG IC DEVICE DATA

OPERA TING DESCRIPTION

The MC33128 is a complete power management
controller that is designed to interface the user to the system
electronics via a microprocessor.

Outputs

Three low dropout voltage regulators are provided at outputs
1, 2 and 3. Outputs 1 and 2 were contemplated for independent
powering of the systems analog and digital circuitry. This
significantly reduces the possibility of digitally generated noise
and spurious signals from coupling into the RF and analog
circuits. The low dropout characteristic of Outputs 1 and 2 is
achieved by applying a boosted battery voltage, VBB, to their
respective driver transistors. This allows the output pass
transistors to be driven into saturation when the battery voltage
approaches 3.0 V . The VBB Output appears at Pin 4 and can be
used to provide gate bias for enhancing external N channel
MOSFET switches. Excess ive loading of the V

BB

output will

result in an increase in dropout voltage.

Output 4 is derived from a voltage inverting charge pump
circuit and is intended to provide the negative gate bias
required for full depletion of RF gallium arsenide MESFETs.
In personal communication system applications such as
cellular telephone, negative gate bias is usually required by
the antenna switch and power amplifier circuit blocks with a
typical combined current of less than 1.0 mA. Output 4 can
supply in excess of 2.0 mA, but there will be an increase in
dropout voltage of Outputs 1, 2 and 3.

Outputs 1, 2, 4, VBB Generator and Thermal Protection are
all enabled and disabled in unison by the Battery Saver Input,
Pin 9. The microprocessor can be programmed to
significantly extend the system battery operating time by
periodically enabling the receiver circuitry.

Output 3 provides power to the microprocessor, flash
EPROM and the system display. These blocks are enabled
by the Power Up Input, Pin 11, and disabled by the Power
Down Input, Pin 10. By having separate power up and power
down inputs, the microprocessor can store any pending
information before turning the system and then itself OFF.
This allows a controlled or graceful shutdown. Note that the
power down request is initiated by pressing the toggle switch
while the system is “ON”. This action generates a
microprocessor non–maskable interrupt that initiates the
graceful shutdown.

Battery Voltage Detection

Reverse biasing and eventual failure of the lowest
capacity cell in the battery pack can occur if the system is

accidentally left on for an extended time period. To prevent
this condition the following circuit blocks were incorporated.

A means for low battery detection is accomplished by
using the Reference Output, Pin 12, in conjunction with the
microprocessor’s analog to digital converter input. A
microprocessor output (LBO) can be designated to flash a
display enunciator when a low battery condition exists. The
Reference Output is 1.5 V ±2.7% and is capable of sourcing
in excess of 10 mA.

The Power Up Reset Output, Pin 13, is designed to hold
the microprocessor reset input low until the voltage at Output 3
rises above 2.66 V . This feature prevents the microprocessor
from hanging or writing invalid information into its memory
during power up. Notice that the output of the MPU Power Up
Reset comparator also drives the base of transistor QPD. If
Output 3 should fall below 2.6 V, due to an overload or a low
battery condition, the comparator will drive QPD “ON”,
causing its collector to pull high on the Power Down Input,
immediately forcing the system into standby mode.
Externally pulling down on Pin 13, base of QPD, will also force
the system into standby mode.

A redundant Low Battery Shutdown circuit is included.
This circuit directly monitors the battery voltage and also
forces the system into standby mode when the battery
voltage falls below 2.4 V. To test the functionality of this
circuit, the high state signal generated by transistor QPD must
be clamped low, to prevent resetting the ON/OFF Latch. An
external short or a pull–down, capable of sinking 2.0 mA at
less than 0.8 V, must be connected to Pin 10.

A Battery Latch circuit is designed into the IC to prevent
the system from turning on when the batteries are inserted
into the finished product. This feature is useful for the end
customer as well as the equipment manufacturer. Upon initial
application of battery voltage, the lower comparator (0.7 V
threshold) forces the Battery Latch into a reset state with its
“Q” output low. This in turn triggers a reset of the ON/OFF
Latch via the OR gate and also locks out the set signal
present at the upper input of the AND gate. As the voltage at
Pin 11 rises above (VCC – 1.5 V), the set signal disappears,
leaving the state of the ON/OFF Latch unchanged (reset).
When the voltage at Pin 11 rises above (VCC –1.0 V), the
upper comparator forces the Battery Latch into a set state
causing its “Q” output to go high. This allows the AND gate
and the ON/OFF Latch to receive a set signal from Pin 11.
The initial Battery Latch lockout time is controlled by the
internal 20 kΩ resistor and the external 0.1 µF capacitor.

MC33128

6

MOTOROLA ANALOG IC DEVICE DATA

Figure 5. MC33128 Block Diagram

Reference

Oscillator

S

R

S

R

Thermal

Logic

Bias

20k

V

O3

VBB Generator

VBB Charge

Pump Capacitor

3216

0.22

V

CC

33

V

bat

5.0V to 3.0V

1.27V

VCC –1.0V

Battery

Latch

1.0

µ

A

10pF

0.7V

VCC –1.5V

Power Up
Input

Battery
Saver
Input
Power
Down
Input

Reference

1.5V/10mA
V

O3

1.27V

Reference
Output

Low Battery
Shutdown

V

O3

1.27V

MPU
Power Up
Reset

1.27V

MPU
Regulator

V

O3

1.27V

26k

40k

V

CC

Q

PD

Reset

Output

4.7

Output 3

3.0V/20mA

Output 2

3.0V/60mA

Output 1

3.0V/30mA

Output 4
–2.5V/1.0mA

Output 4
Charge Pump Capacitor

1.27V

1.27V

Standby
Regulator 2

Standby
Regulator 1

–2.5V
Regulator

V

BB

V

BB

1.27V

V

BB

ON/OFF

Latch

11

9

10

12 Gnd 6

ON/OFF

T oggle

Low Battery
Output

V

bat

V

DD

V

SS

LBO

A/D

In

R

Ref
Out
Out
Out

In

13

14

1

15

5

7

8

4

4.7

4.7

4.7

4.7

0.1

Q

Q

MPU

MC33128

7

MOTOROLA ANALOG IC DEVICE DATA

Oscillator

VBB Generator

3216

0.22
33

V

bat

V

BB

5

7

8

4

4.7

Figure 6. Voltage Tripler and Switch Driver

4.7

0.1
V

bat

Tripler
Output

ON/OFF

Controlled
Turn ON/OFF
Time

R

C

1

C

2

R

FB

R

L

Load Current

(mA)

VCC = 3.15 V VCC = 4.5 V

Tripler Output Voltage

0

0.5

1.0

1.5

2.0

7.96

7.48

7.24

6.99

6.62

12.01

11.54

11.29

11.04

10.69

Load Turn ON/OFF Time

High R

FB

Critical R

FB

Low R

FB

External Switch

A low threshold N–channel MOSFET can be used to
switch the transmitting power amplifier (RL) ON and OFF. T o
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 V

BB

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 C

1

and C

2

are usually of equal value.

MC33128

8

MOTOROLA ANALOG IC DEVICE DATA

OUTLINE DIMENSIONS

D SUFFIX

PLASTIC PACKAGE

CASE 751B–05

(SO–16)
ISSUE J

0.25 (0.010) T B A

M

S S

MIN MINMAX MAX

MILLIMETERS INCHES

DIM

A
B
C
D
F
G
J

K
M
P
R

9.80

3.80

1.35

0.35

0.40

0.19

0.10
0

°

5.80

0.25

10.00

4.00

1.75

0.49

1.25

0.25

0.25
7

°

6.20

0.50

0.386

0.150

0.054

0.014

0.016

0.008

0.004
0

°

0.229

0.010

0.393

0.157

0.068

0.019

0.049

0.009

0.009
7

°

0.244

0.019

1.27 BSC 0.050 BSC

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.

5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.

1

8

916

–A

–

–B

–

D 16 PL

K

C

G

–T

–

SEATING

PLANE

R X 45°

M

J

F

P

8 PL

0.25 (0.010) B

M M

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.

How to reach us:
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution; JAP AN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,

P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315

MFAX: RMF [e-mail] – TOUCHT ONE 602–244–6609 ASIA/ PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
INTERNET: http://Design–NET .com 51 Ting Ko k Road, Tai Po, N.T., Hong Kong. 852–26629298

MC33128/D

*MC33128/D*

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