Motorola TCA5600 Datasheet

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The TCA5600, TCF5600 are versatile power supply control circuits for
microprocessor based systems and are mainly intended for automotive
applications and battery powered instruments. To cover a wide range of
applications, the devices offer high circuit flexibility with a minimum of
external components.

Functions included in this IC are a temperature compensated voltage
reference, on–chip dc/dc converter, programmable and remote controlled
voltage regulator, fixed 5.0 V supply voltage regulator with external PNP
power device, undervoltage detection circuit, power–on RESET delay and
watchdog feature for safe and hazard free microprocessor operations.

• 6.0 V to 30 V Operation Range

• 2.5 V Reference Voltage Accessible for Other Tasks

• Fixed 5.0 V ± 4% Microprocessor Supply Regulator Including Current

Limitation, Overvoltage Protection and Undervoltage Monitor.

• Programmable 6.0 V to 30 V Voltage Regulator Exhibiting High Peak

Current (150mA), Current Limiting and Thermal Protection.

• Two Remote Inputs to Select the Regulator’s Operation Mode:

OFF = 5.0 V, 5.0 V Standby
Programmable Output Voltage

• Self–Contained dc/dc Converter Fully Controlled by the Programmable

Regulator to Guarantee Safe Operation Under All Working Conditions

• Programmable Power–On RESET Delay

• Watchdog Select Input

• Negative Edge Triggered W atchdog Input

• Low Current Consumption in the V

• All Digital Control Ports are TTL and MOS–Compatible

Applications Include:

• Microprocessor Systems with E

• High Voltage Crystal and Plasma Displays

• Decentralized Power Supplies in Computer Telecom Systems

CC1

2

PROMs

Standby Mode

UNIVERSAL

MICROPROCESSOR POWER

SUPPLY/CONTROLLERS

SEMICONDUCTOR

TECHNICAL DATA

18

1

PLASTIC PACKAGE

CASE 707

PIN CONNECTIONS

RESET

V

Sense

out1

V

CC1
WDI

V

ref

INH1

V

Prog

out2

V

Output

out2

Converter Output

1
2
3
4
5
6
7
8
9

WDS

18

Delay

17

I

Sense

16

out1

Base Drive

15

V

14

CC2

GND

13

Current Sense

12

INH2

11

Converter Input

10

RECOMMENDED OPERATING CONDITIONS

Characteristics Symbol Min Max Unit

Power Supply Voltage V

Collector Current I
Output Voltage V
Reference Source Current I

V

CC1
CC2

C

out2

ref

MOTOROLA ANALOG IC DEVICE DATA

5.0

5.5
— 800 mA

6.0 30 V

0 2.0 mA

30
30

(Top View)

V

ORDERING INFORMATION

Operating

Device

TCA5600
TCF5600

 Motorola, Inc. 1996 Rev 0

Temperature Range

TJ = 0° to +125°C

TJ = – 40° to +150°C

Package

Plastic DIP
Plastic DIP

1

MAXIMUM RATINGS

Power Supply Voltage (Pin 3,14) V
Base Drive Current (Pin 15) I
Collector Current (Pin 10) I
Forward Rectifier Current (Pin 10 to Pin 9) I
Logic Inputs INH1, INH2, WDS

(Pin 6, 11, 18)
Logic Input Current WDI (Pin 4) I
Output Sink Current RESET (Pin 1) I
Analog Inputs (Pin 2)

Analog Inputs (Pin 7)

Reference Source Current (Pin 5) I
Power Dissipation (Note 2)

TA = +75°C TCA5600

TA = +85°C TCF5600
Thermal Resistance, Junction–to–Air R
Operating Ambient Temperature Range

TCA5600

TCF5600
Operating Junction Temperature Range

TCA5600

TCF5600
Storage Temperature Range T

NOTES: 1. Values beyond which damage may occur.

2.Derate at 10 mW/°C for junction temperature above +75°C (TCA5600).
Derate at 10 mW/°C for junction temperature above +85°C (TCF5600).

(TA = +25°C [Note 1], unless otherwise noted.)

Rating Symbol Value Unit

CC1

V

WDI
RES

P

TCA5600 TCF5600

, V

B

C

F

INP

ref

D

θJA

T

A

T

stg

CC2

J

35 Vdc
20 mA

1.0 A

1.0 A

–0.3 V to V

–0.3 to 5.0

–40 to +85

–65 to +150 °C

CC1

±0.5 mA

10 mA

–0.3 to 10

5.0 mA

500
650

100 °C/W

0 to +75

+125
+150

Vdc

V

mW

°C

°C

Inhibit 2

(INH2)

Inhibit 1

(INH1)

Supply
Voltage V

RESET

CC1

11

6

3

1

Comp. II

Representative Block Diagram

CC2

Converter

Input

Converter

Output

Current

Sense VProgramming

10 9 12 7 8 14 16

DC/DC

Converter

Reference

2.5V

Delay Circuit

17

Delay

out2

A2

Thermal

Shut–Down

Watchdog

WDS

WDI

out2

Regulator

V

Comp. I

Supply

Voltage V

Current

Limit

Current

Sense

135418

ref

V

A1

A1

Gnd

Voltage

Protection

15

PNP Base Drive

2

V

Sense

out1

2

MOTOROLA ANALOG IC DEVICE DATA

TCA5600 TCF5600

ELECTRICAL CHARACTERISTICS (V

Characteristics

= V

CC1

= 12 V; TJ = 25°C; I

CC2

INH2 = High; WDS

= High; I

= 0 [Note 4]; unless otherwise noted.)

out2

Figure Symbol Min Typ Max Unit

ref

REFERENCE SECTION

Nominal Reference Voltage 1 V
Reference Voltage

I

= 0.5 mA, T

ref

Line Regulation (6.0 V ≤ V
Average Temperature Coefficient

T

≤ TJ ≤ T

low

Ripple Rejection Ratio

f = 1.0 kHz, V

low

high

sin

≤ TJ ≤ T

(Note 5)

= 1.0 V

(Note 5), 6.0 V ≤ V

high

≤ 18 V) Reg

CC2

CC1

≤ 18 V

2 ∆V

3 RR 60 70 — dB

pp

Output Impedance

0 ≤ I

≤ 2.0 mA

ref

Standby Current Consumption

V

= Open

CC2

4 I

5.0 V MICROPROCESSOR VOLTAGE REGULATOR SECTION

Nominal Output Voltage V
Output Voltage

5.0 mA ≤ I

6.0 V ≤ V
Line Regulation (6.0 V ≤ V
Load Regulation (5.0 mA ≤ I
Base Current Drive (V
Ripple Rejection Ratio

f = 1.0 kHz, V

out1

CC2

≤ 18 V

sin

≤ 300 mA, T

CC2

= 6.0 V, V15 = 4.0 V) I

CC2

= 1.0 V

pp

low

≤ TJ ≤ T

high

(Note 5)

5
6

≤ 18 V) Reg

≤ 300 mA) Reg

out1

3 RR 50 65 — dB

Undervoltage Detection Level (RSC = 5.0 Ω) 7 V
Current Limitation Threshold (RSC = 5.0 Ω) V
Average Temperature Coefficient

T

low

≤ TJ ≤ T

high

(Note 5)

DC/DC CONVERTER SECTION

Collector Current Detection Level High

9 V12(H)

RC = 10 k Low

Collector Saturation Voltage

10 V

IC = 600 mA (Note 6)

Rectifier Forward Voltage Drop

11 V

IF = 600 mA (Note 6)

NOTES: 3. The external PNP power transistor satisfies the following minimum specifications:

hFE ≥ 60 at IC = 500 mA and VCE = 5.0 V;
V

≤ 300 mV at IB = 10 mA and IC = 300 mA

CE(sat)

4.Regulator V

5.T

= 0°C for TCA5600 T

low

T

= +125°C for TCA5600 T

high

6.Pulse tested tp ≤ 300 µs.

programmed for nominal 24 V output by means of R4, R5 (see Figure 1).

out2

= –40°C for TCF5600

low

= +150°C for TCF5600

high

= 0; I

out1

ref nom

V

ref

line
ref

∆T

J

Z

O

CC1

out1(nom)

V

out1

line

load

B

low

RSC

∆V

out1

∆T

J

V12(L)

CE(sat)

F

= 0 [Note 3]; RSC = 0.5 Ω; INH = High

2.42 2.5 2.58 V

2.4 — 2.6 V

— 2.0 15 mV
— — ±0.5 mV/°C

— 1.0 — Ω

— 3.0 — mA

4.8 5.0 5.2 V

4.75 — 5.25 V

— 10 50 mV
— 20 100 mV
10 15 — mA

4.5 0.93 × V

out1

— V

210 250 290 mV

— — ±1.0 mV/°C

350

—

400

50

450

—

— — 1.6 V

— — 1.4 V

mV

MOTOROLA ANALOG IC DEVICE DATA

3

TCA5600 TCF5600

ELECTRICAL CHARACTERISTICS

ELECTRICAL CHARACTERISTICS INH2 = High; WDS = High; I

Characteristics

(V

CC1

= V

= 12 V; TJ = 25°C; I

CC2

ref

= 0 [Note 4]; unless otherwise noted.)

out2

Symbol Min Typ Max Unit

PROGRAMMABLE VOLTAGE REGULATOR SECTION (Note 6)

Nominal Output Voltage V
Output Voltage (Figure 8)

1.0 mA ≤ I
Load Regulation 1.0 mA ≤ I

≤ 100 mA, T

out2

≤ TJ ≤ T

low

≤ 100 mA (Note 7) Reg

out2

(Notes 5, 7)

high

out2(nom)

V

DC Output Current I
Peak Output Current (Internally Limited) I

out2 p

Ripple Rejection Ratio

f = 20 kHz, V = 0.4 V

Output Voltage (Fixed 5.0 V)

1.0 mA ≤ I

INH1 = HIGH (Note 5)

out2

pp

≤ 20 mA, T

low

≤ TJ ≤ T

high

V

out2(5.0 V)

Off State Output Impedance (INH2 = Low) R
Average Temperature Coefficient

T

low

≤ TJ ≤ T

high

(Note 5)

∆V

∆TJV

WATCHDOG AND RESET CIRCUIT SECTION

Threshold Voltage High

(Static) Low

Current Source T

Power–Up RESET

low

≤ TJ ≤ T

high

(Note 5)

V

V

Watchdog Time Out

Watchdog RESET
Watchdog Input V oltage Swing V
Watchdog Input Impedance r
Watchdog Reset Pulse Width (C8 = 1.0 nF) (Note 9) t

DIGITAL PORTS: WDS, INH 1, INH 2, RESET (Note 8)

Input Voltage Range V
Input High Current

2.0 V ≤ VIH ≤ 5.5 V

5.5 V ≤ VIH ≤ V

CC1

Input Low Current

–0.3 V ≤ VIL ≤ 0.8 V for INH1, INH2, –0.3 V ≤ VIL ≤ 0.4 V for WDS
Leakage Current Immunity (INH2, High “Z” State) (Figure 12) I
Output Low Voltage RESET (IOL = 6.0 mA) V
Output High Voltage RESET (VOH = 5.5 V) V

NOTES: 3. The external PNP power transistor satisfies the following minimum specifications:

hFE ≥ 60 at IC = 500 mA and VCE = 5.0 V;
V

≤ 300 mV at IB = 10 mA and IC = 300 mA

CE(sat)

4.Regulator V

5.T

= 0°C for TCA5600 T

low

T

= +125°C for TCA5600 T

high

6.V9 = 28 V, INH1 = LOW for this Electrical Characteristic section unless otherwise noted.

7.Pulse tested tp ≤ 300 µs.

8.Temperature range T

9.For test purposes, a negative pulse is applied to Pin 4 (–2.5 V ≥ V4 ≥ –5.5 V).

programmed for nominal 24 V output by means of R4, R5 (see Figure 1).

out2

low

≤ TJ ≤ T

= –40°C for TCF5600

low

= +150°C for TCF5600

high

applies to this Electrical Characteristics section.

high

= 0; I

= 0 [Note 3]; RSC = 0.5 Ω; INH = High

out1

23 24 25 V

out2

load

out2

22.8 — 25.2 V

— 40 200 mV
100 — — mA
150 200 — mA

RR 45 55 — dB

4.75 — 5.25 V

out1

out2

— 10 — kΩ

— — ±0.25 mV/°C V

out2

C5(H)

C5(L)

I

C5

WDI

i

p

INP

I

IH

I

IL

Z

OL

OH

—

—

–1.8

—

—

— — ±5.5 V

12 15 — kΩ

— — 10 µs

— — –0.3 to V

—

—

— — –100
±20 — — µA

— — 0.4 V

— — 20 µA

2.5

1.0

–2.5

5×I

–50×I

—
—

C5

C5

—
—

–3.2

—
—

CC1

100
150

V

µA

V

µA

µA

4

MOTOROLA ANALOG IC DEVICE DATA