Harris Semiconductor HIP5600IS2, HIP5600IS Datasheet

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HIP5600

September 1998 File Number 3270.7

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Thermally Protected High Voltage Linear
Regulator

The HIP5600 is an adjustable 3-terminal positive linear
voltage regulator capable of operating up to either 400V
or 280V
to within 50V of the peak input voltage with two external
resistors. This high voltage linear regulator is capable of
sourcing 1mA to 30mA with proper heat sinking. The
HIP5600 can also provide 40mA peak (typical) for short
periods of time.

Protection is provided by the on chip thermal shutdown and
output current limiting circuitry. The HIP5600 has a unique
advantage overother high voltage linear regulators due to its
ability to withstand input to output voltages as high as
400V(peak), a condition that could exist under output short
circuit conditions.

Common linear regulator configurations can be implemented
as well as AC/DC conversion and start-up circuits for switch
mode power supplies.

The HIP5600 requires a minimum output capacitor of 10µF
for stability of the output and may require a 0.02µF input
decoupling capacitor depending on the source impedance. It
also requires a minimum load current of 1mA to maintain
output voltage regulation.

All protection circuitry remains fully functional even if the
adjustment terminal is disconnected. However, if this
happens the output voltage will approach the input voltage.

. The output voltage is adjustable from 1.2V

RMS

DC

DC

Features

• Operates from 50VDC to 400V

• Operates from 50V

• UL Recognized

• Variable DC Output Voltage 1.2V

• Internal Thermal Shutdown Protection

• Internal Over Current Protection

• Up to 40mA Peak Output Current

• Surge Rated to ±650V; Meets IEEE/ANSI C62.41.1980
with Additional MOV

CAUTION: This product does not provide isolation from AC

line.

RMS

to 280V

DC

RMS

to VIN - 50V

DC

Line

Applications

• Switch Mode Power Supply Start-Up

• Electronically Commutated Motor Housekeeping Supply

• Power Supply forSimpleIndustrial/Commercial/Consumer
Equipment Controls

• Off-Line (Buck) Switch Mode Power Supply

Ordering Information

PART

NUMBER TEMP. RANGE PACKAGE

HIP5600IS -40oC to +100oC 3 Lead Plastic SIP
HIP5600IS2 -40oC to +100oC 3 Lead Gullwing Plastic

SIP

Pinouts

HIP5600 (TO-220)

TOP VIEW

TAB ELECTRICALLY

CONNECTED

TO V

OUT

HIP5600

ADJ

HIP5600 (MO-169)

TOP VIEW

V

OUT

IN

V

OUT

ADJ

V

IN

V

OUT

V

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

© Harris Corporation 1998

Copyright

Functional Block Diagram

HIP5600

V

IN

C1

Schematic Diagram

RECTIFIER FOR
AC OPERATION

THERMAL

SHUTDOWN

V

IN

HIP5600

D1

TRANSISTOR

BIAS

NETWORK

FEEDBACK

OR CONTROL

AMPLIFIER

D2

R2

PASS

+

ADJ

Q1

-

R1

SHORT-CIRCUIT

PROTECTION

-

+
+

-

-

+

VOLTAGE

REFERENCE

D4

V

RF1

OUT

C2

RF2

D5

R4

R5

R6

R7

Q3

ADJ

R8

Q5

Q4

R9

Q6

Q7

D6

R10

Q9

Q8

C1

D3

Q10

R11

D7

D8

Q2

R3

Q11

R12

R13

D9

Q13

Q12

Q14

R14

R15

V

OUT

FIGURE 1.

2

HIP5600

Absolute Maximum Ratings Thermal Information (Typical)

Input to Output Voltage, Continuous. . . . . . . . . . . . . +480V to -550V

Input to Output Voltage, Peak (Non Repetitive, 2ms). . . . . . . . ±650V

Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150oC

ADJ to Output, Voltage to ADJ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V

Storage Temperature Range . . . . . . . . . . . . . . . . . -65oC to +150oC

Lead Temperature (Soldering 10s). . . . . . . . . . . . . . . . . . . . +265oC

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

Operating Conditions

Operating Voltage Range . . . . . . . . . . . . . . 80V

to280V

RMS

50VDC to 400V

RMS

DC

Thermal Resistance θ

JA

Plastic SIP Package . . . . . . . . . . . . . . 60oC/W 4oC/W

or

Operating Temperature Range . . . . . . . . . . . . . . . .-40oC to +100oC

θ

JC

Electrical Specifications Conditions V

= 400VDC, IL= 1mA, CL=10µF, V

IN

ADJ

= 3.79V, V

= 5V (Unless Otherwise Specified) Tem-

OUT

perature = Case Temperature.

PARAMETER CONDITION TEMP MIN TYP MAX UNITS

INPUT

Input Voltage DC Full 50 - 400 V

Max Peak Input Voltage Non-Repetitive (2ms) Full - - ±650 V

Input Frequency (Note 1) Full DC - 1000 Hz

Bias Current (I

Note 2) Full 0.4 0.5 0.6 mA

BIAS

REFERENCE

I

ADJ

I

(Note 1) IL = 1mA Full - +0.15 - µA/oC

ADJTC

I

ADJ LOAD REG

V

(Note 3) +25oC 1.07 1.18 1.30 V

REF

V

REF TC

Line Regulation
V

REF LINE REG

(Note 1) IL = 1mA to 10mA +25oC - -215 - nA/mA

(Note 1) IL = 1mA Full - -460 - µV/oC

50VDC to 400VDC +25oC - 9 14.5 µV/V

+25oC506580 µA

Full - 9 29 µV/V

Load Regulation
V

REF LOAD REG

I

= 1mA to 10mA +25oC - 3 5 mV/mA

OUT

Full - 3 6 mV/mA

PROTECTION CIRCUITS

Output Short Circuit Current Limit VIN = 50V +25oC 35 - 45 mA

Thermal Shutdown T

TS

VIN = 400V - 127 134 142

(IC surface, not case temperature. Note 1)

Thermal Shutdown Hysteresis (Note 1) VIN = 400V - - 34 -

NOTES:

1. Characterized not tested

2. Bias current ≡ input current with output pin floating.

3. V

REF=VOUT-VADJ

3

o

C

o

C

Application Information

HIP5600

Introduction

In many electronic systems the components operate at 3V to
15V but the system obtains power from a high voltage
source (AC or DC). When the current requirements are
small, less than 10mA, a linear regulator may be the best
supply provided that it is easy to design in, reliable, low cost
and compact. The HIP5600 is similar to other 3 terminal reg­ulators but operates from much higher voltages. It protects
its load from surges +250V above its 400V operating input
voltage and has short circuit current limiting and thermal
shutdown self protection features.

Output Voltage

The HIP5600 provides a temperature independent 1.18V
reference, V
terminal (V

, between the output and the adjustment

REF

REF

=V

OUT-VADJ

). This constant reference
voltage is impressed across RF1 (see Figure 2) and results
in a constant current (I

) that flows through RF2 to ground.

1

The voltage across RF2 is the product of its resistance and
the sum of I

1

and I

The output voltage is given in Equa-

ADJ.

tions 1(A, B).

V

V

OUT

OUT

RF1 RF2+

------------------------------

V

()

REF

1.18()

RF1

RF1 RF2+

------------------------------

× 65µARF2()+=

RF1

I

ADJ

RF2()+=

(EQ. 1A)

(EQ. 1B)

Error Budget

∆

V

∆ V

OUT

+V

RF1 RF2

+



T

--------------------------

REF



RF1

RF2∆

RF2





----------

REF

--------------





RF2

RF1

--------------–

RF1

T

I

RF2 I

ADJ

RF1∆

+∆+∆=

ADJ

-------------

RF2

(EQ. 2A)

RF2

RF2

Where;

T

V

∆ V

REF

+V

REFVREF

TC θ

()I

REF

SA

LOADREG

∆

OUTVIN

I

∆()V

OUT

⋅()V+

REF

TC Temp∆()++∆≡

REF

LINEREG

(EQ. 2B)

T

I

∆ I

ADJ

ADJIADJ

+I

ADJ

Note:

RFx∆

= % tolerance of resistor x

---------------

RFx

TC θ

()I

LOADREG

SA

I

∆()I

OUT

⋅()∆

OUTVIN

+ TC Temp∆()+∆≡

ADJ

(EQ. 2C)

Equations 2(A,B,C) are provided to determine the worst
case output voltage in relation to; manufacturing tolerances
(∆V
(∆RF1/RF1, ∆RF2/RF2), load regulation (

I

ADJ LOAD REG

effects of temperature (V
self heating (θ

REF

and ∆I

REF

), line regulation (V

).

SA

),% tolerance in external resistors

V

REF LOAD REG

) and the

REF

REF LINE REG

TC, I

REF

TC), which includes

HIP5600

OUT

ADJ

V

I

ADJ

V

OUT(NOMINAL)

3.3V 3.6k 5.6k

AC/DC

IN

V

4.9V 2.7k 7.5k

12.0V 1.8k 15k

14.8V 1.1k 12k

I

V

REF

1

RF1

RF2

AC/DC

V

OUT

RF1 RF2

FIGURE 2.

Example: Given: VIN= 200VDC,V
2mA to 12mA,θ
12kΩ 5% high, ∆I

o

+60

C (ambient temperature +25oCto+85oC). The worst
case ∆V
V

OUT

is attributed to the following: -1.55V manufacturing tol-

OUT

=10oC/W, RF1 = 1.1kΩ 5% low, RF2 =

SA

equals 10mA and ∆Temp equals

OUT

for the given conditions is -1.13V. The shift in

OUT

= 15V, I

OUT

=

erances, +1.33V external resistors, -0.62V load regulation
and -0.29V temperature effects.

Regulator With Zener

V

= 1.18 + V

HIP5600

OUT

V

OUT

Z

V

Z

3.7V 2.5V

ADJ

I

ADJ

OUT

V

V

IN

V

REF

AC/DC

I

1

RF1

V

Z

AC/DC

V

OUT

5.1V 3.9V

10.3V 9.1V

12.2V 11V

16.2V 15V

RF1 = 10k

FIGURE 3.

The output voltage can be set by using a zener diode (Figure

3) instead of the resistor divider shown in Figure 2. The
zener diode improves the ripple rejection ratio and reduces
the value of the worst case output voltage, as illustrated in
the example to follow. The bias current of the zener diode is
set by the value of RF1 and I

ADJ

.

The regulator / zener diode becomes an attractive solution if
ripple rejection or the worst case tolerance of the output volt­age is critical (i.e. one zener diode cost less than one 10µF
capacitor (C3) and one 1/4W resistor RF2). Minimum power

,

dissipation is possible by reducing I
on the output voltage regulation. The output voltage is given

current, with little effect

1

in Equation 3.
Equations 4(A,B,C) are provided to determine the worst

case output voltage in relation to; manufacturing tolerances

4

)

HIP5600

V

OUT

V

REF

V

+=

Z

(EQ. 3)

Error Budget

V

∆ V

OUT

+V

TC θ

REF

T

V

∆ V

Z

T

REF

T

V

∆ V

REF

()I

∆

SA

tolerance V

Z

of HIP5600 and the zener diode (∆V
ulation of the HIP5600 (V
temperature on the HIP5600 and the zener diode (V
V

TC).

Z

Example: Given: V

1.18V, V

= 13V), ∆VZ= 5%, VZTC =+0.079%/°C(assumes

Z

1N5243BPH),∆I
The worst case ∆V

T

V

∆Z+∆=

I

++∆≡

REFVREF

⋅()V+

OUTVIN

()V

Z

LOADREG

REF

TC Temp∆()+≡ (EQ. 4C)

Z

REF LOAD REG

= 200V, V

IN

equal 10mA and ∆Temp equal +60oC.

OUT

is 0.4956V. The shift in V

OUT

∆()V

LINEREG

REF

OUT

OUT

and ∆Vz), load reg-

), and the effects of

= 14.18V (V

REF

(EQ. 4A)

TC Temp∆(

(EQ. 4B)

TC,

REF

REF

OUT

attributed to the following: -0.2 (HIP5600) and 0.69 (zener
diode).

The regulator/zener diode configuration gives a 3.5%
(0.49/14.18) worst case output voltage error where, for the
same conditions, the regulator/resistor configuration results
in an 7.5% (1.129/15) worst case output voltage error.

External Capacitors

A minimum10µF output capacitor (C2) is required for stability
of the output stage. Any increase of the load capacitance
greater than 10µF will merely improve the loop stability and
output impedance.

A 0.02µF input decoupling capacitor (C1) between V

IN

and
ground may be required if the power source impedance is
not sufficiently low for the 1MHz - 10MHz band. Without this
capacitor, the HIP5600 can oscillate at 2.5MHz when driven
by a power source with a high impedance for the 1MHz ­10MHz band.

An optional bypass capacitor (C3) from V

ADJ

to ground
improves the ripple rejection by preventing the ripple at the
Adjust pin from being amplified. Bypass capacitors larger
than 10µF do not appreciably improve the ripple rejection of
the part (see Figure 20 through Figure 25).

Load Regulation

For improved load regulation, resistor RF1 (connected
between the adjustment terminal and V

) should be tied

OUT

directly to the output of the regulator (Figure 4A) rather than
near the load Figure 4B. This eliminates line drops (R

) from

S

appearing effectively in series with RF1 and degrading regu­lation. For example, a 15V regulator with a 0.05Ω resistance
between the regulator and the load will have a load regula­tion due to line resistance of 0.05Ω x ∆I

. If RF1 is con-

L

nected near the load the effective load regulation will be 11.9
times worse (1+R2/R1, where R2 = 12k, R1 = 1.1k).

HIP5600

OUT

ADJ

V

V

REF

I

ADJ

(A)

V

IN

AC/DC

R

I

1

RF1

RF2

AC/DC

S

V

OUT

FIGURE 4.

HIP5600

OUT

ADJ

V

V

REF

I

ADJ

(B)

IN

V

AC/DC

R

S

I

1

RF1

RF2

AC/DC

V

OUT

Protection Diodes

=

The HIP5600, unlike other voltage regulators, is internally
protected by input diodes in the event the input becomes

is

shorted to ground. Therefore, no external protection diode is
required between the input pin and the output pin to protect
against the output capacitor (C2) discharging through the
input to ground.

If the output is shorted in the absence of D1 (Figure 5), the
bypass capacitor voltage (C3) could exceed the absolute
maximum voltage rating of ±5V between V

OUT

and VIN.
Note; No protection diode (D1) is needed for output voltages
less than 6V or if C3 is not used.

V

C1

0.02µF

+ V

C2
10µF

IN

D1 PROTECTS AGAINST C3
DISCHARGING WHEN THE
OUTPUT IS SHORTED.

OUT

C3

10µF

HIP5600

OUT

ADJ

V

IN

V

RF1

RF2

D1

FIGURE 5. REGULATOR WITH PROTECTION DIODE

Selecting the Right Heat Sink

Linear power supplies can dissipate a lot of power. This
power or heat must be safely dissipated to permit continuous
operation. This section will discuss thermal resistance and
show how to calculate heat sink requirements.

Electronic heat sinks are generally rated by their thermal
resistance. Thermal resistance is defined as the temperature
rise per unit of heat transfer or power dissipated, and is
expressed in units of degrees centigrade per watt. For a par­ticular application determine the thermal resistance (θ

SA

)
which the heat sink must have in order to maintain a junction
temperature below the thermal shut down limit (T

TS

).

5