Analogic Technologies AHK432ILY-2-B1, AHK432ILY-2-A1, AHK432ILY-1-B1, AHK432ILY-1-A1, AHK432IGY-2-T1 Datasheet

General Description

AHK432

Adjustable Low Voltage Shunt Regulator

™

™

Features

PowerManager

SmartSwitch

The AHK432 is a low voltage adjustable shunt refer­ence with thermal stability guaranteed over the full
industrial temperature range. This 3-terminal regula­tor has an output voltage range that extends from
V

(1.24V) to 20V, giving designers outstanding

REF

flexibility in the development of power supplies and
instrumentation. With a low operating current of
60µA, the AHK432 is well suited for battery-powered
portable electronic applications. It also has a sharp
turn-on characteristic and a dynamic resistance of
only 50mW making it an excellent replacement for
zener diodes in low tempco designs.

The AHK432 is available in the surface-mount 3 or
5 pin SOT-23, as well as the through hole TO-92.
Three voltage tolerance options are offered in each
package: ±0.5%, ±1%, and ±2%.

• Wide output voltage range (1.24 to 20V)

• Operating current from 60µA to 100mA

• Low dynamic output resistance of 50mΩ

• ±0.5% trimmed voltage reference

• 10mV typ. V

• Surface mount 3 or 5 pin SOT-23 or through­hole 3 pin TO-92 packages

deviation, from -40 to +105°C

REF

Applications

• Notebook computers

• Isolated feedback in switching power supplies

• Adjustable and programmable supplies

• Linear regulators (External Reference)

• Instrumentation

• Medical Electronics*

• Global voltage reference for multiple power
supplies

Preliminary Information

Typical Application

R

IN

AHK432

432.2001.11.0.96 1

L

OUT

R1

Adjustable regulator:

R1 + R2

OUT = V

R2

REF

R2

AHK432

Adjustable Low Voltage Shunt Regulator

Absolute Maximum Ratings (T

=25°C unless otherwise noted)

A

Symbol Description Value Units

V

Z

I

Z

I

REF

T

J

Θ

JA

P

D

T

LEAD

Note: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at con­ditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time.

Electrical Characteristics (T

Symbol Description Conditions min typ max min typ Max min typ max Units

REF

V

DEV

∆V

/∆V

REF

Z

I

REF

I

REF(DEV)

I

Z(OFF)

R

Z

I

Z(MIN)

Cathode Voltage 20 V
Continuous Cathode Current 100 mA
Reference Current 3 mA
Operating Junction Temperature Range -40 to 150 °C

Maximum Thermal Resistance

Maximum Power Dissipation

TO-92 160

SOT-23-3, SOT-23-5 410

TO-92 780

SOT-23-3, SOT-23-5 300

Maximum Soldering Temperature (at Leads) 260 °C

=25°C unless otherwise noted)

J

AHK432 0.5% AHK432 1.0% AHK432 2.0%

VZ=V

Reference

Voltage

V

Te mp TA=-40 to +105°C, 10 25 10 25 10 25 mV

REF

Deviation VZ=V

Ratio of IZ=10mA, -1.0 -2.7 -1.0 -2.7 -1.0 -2.7 mV/V

Change in V

to Change in (test circuit 2)

Cathode Voltage

Reference R1=10kΩ , 0.15 0.5 0.15 0.5 0.15 0.5 µA

Input Current R2=∞ , IZ=10mA

I

Te mp TA=-40 to +105°C 0.1 0.4 0.1 0.4 0.1 0.4 µA

REF

Deviation R1=10kΩ , R2=∞ ,

Off State V

Cathode Current (test circuit 3) VZ=16V 0.04 0.5 0.04 0.5 0.04 0.5

Dynamic f<1kHz, VZ=V

Output IZ=100mA to 100mA

Impedance (test circuit 1)

Minimum VZ=V

Operating (test circuit 1)

Current

REF

∆VZ=16V to V

REF

IZ=10mA

(test circuit 1)

, IZ=10mA

REF

(test circuit 1)

(test circuit 2)

IZ=10mA

(test circuit 2)

=0V VZ=6V 0.04 0.1 0.04 0.1 0.04 0.1 µA

REF

REF

TA=25°C 1.234 1.240 1.246 1.228 1.240 1.252 1.215 1.240 1.265

TA=-40

to +105°C

REF

, 0.05 0.2 0.05 0.2 0.05 0.2 Ω

REF

1.222 1.258 1.215 1.265 1.200 1.280

60 80 60 80 60 80 µA

°C/W

mW

VV

2 432.2001.11.0.96

Test Circuits

Test Circuit 1 Test Circuit 2 Test Circuit 3

AHK432

Adjustable Low Voltage Shunt Regulator

IN

OUT

I

Z

I

REF

IN

I

Z

I

OUT

REF

IN

I

Z(off)

OUT

432.2001.11.0.96 3

Typical Characteristics

(Unless otherwise noted, TA= 25°C, IZ= 10mA)

AHK432

Adjustable Low Voltage Shunt Regulator

Cathode Current vs. Cathode Voltage

15

10

5

0

-5

-10

Cathode Current (mA)

-15

-1 -0.5 0 0.5 1 1.5

Cathode Voltage ( V)

Reference Voltage vs. Temperature

1.252

1.248

1.244

1.24

1.236

Reference Voltage (V)

1.232

-50 -25 0 25 50 75 100 125

Junction Temperature (°C)

IZ=10mA

Cathode Current vs. Cathode Voltage

200

150

100

50

0

-50

-100

-150

Cathode Current (µA)

-200

-1 -0.5 0 0.5 1 1.5

Cathode Voltag e (V)

Reference Current vs. Temperature

180

160

140

120

100

80

60

40

20

0

Reference Current (nA)

-50 -25 0 25 50 75 100 125

Junction Temperat ure (°C)

IZ=10mA
R
R2=Open

=10kΩ

1

Cathode Current vs. Temperature

80

VZ=5V

70

V

=0V

REF

60

(Off-state)

50

40

30

20

10

Cathode Current (nA)

0

-50 -25 0 25 50 75 100 125

Junction Temperature (°C)

Ratio of ∆V

0

-100

-200

-300

-400

Ratio (µV/V)

-500

-600

-50 -25 0 25 50 75 100 125

REF

/ ∆V

vs. Temperature

Z

IZ=10mA
dVZ=V

Junction Temperature (°C)

REF

to 16V

4 432.2001.11.0.96

AHK432

Adjustable Low Voltage Shunt Regulator

(Unless otherwise noted, T

= 25°C, IZ= 10mA)

A

Cathode Impedance vs. Temperature

16%

12%

8%

4%

0%

Normaliz ed Impedance

-4%

-50 -25 0 25 50 75 100 125

Junct ion Temperature (°C)

Gain and Phase vs. Frequency

120

100

80

60

40

Gain (dB)

20

0

-20

1.E+01 1.E+02 1.E+0 3 1.E+0 4 1.E+05 1.E+0 6

Frequency (Hz)

180

150

120

-30

Impedance vs. Frequency

10

1

0.1

Impedance (Ω)

0.01

1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+0 6

Frequency ( Hz )

V

OUT

V

IN

90

60

30

0

13.7k

8.25k

169 Ω

AHK432

5V

Test Circuit for Voltage

Gain and Phase

Stability Boundary

1k

100

I

80

Stable

60

40

Current (mA)

20

0

10.E+0 100.E+0 1. E+3 10.E+3 100.E+3 1.E+6 10.E+6

Unstable

Load Capacitance (pF)

Stable

V

AHK432

REF=VZ

Test Circuit for Stability

432.2001.11.0.96 5

Z

R1=10k

C

L

R2

Adjustable Low Voltage Shunt Regulator

Functional Block Diagram Symbol Diagram

CATHODE

CATHODE

REF

REF

=1.24V

V

REF

ANODE

ANODE

AHK432

Ordering Information

Package

SOT-23-3 N/A N/A N/A

SOT-23-5 Bulk N/A N/A N/A

TO-92 AHK432ILY-.5-B1 AHK432ILY-1-B1 AHK432ILY-2-B1

SOT-23-3

SOT-23-5 AHK432IGV-.5-T1 AHK432IGV-1-T1 AHK432IGV-2-T1

TO-92 Ammo AHK432ILY-.5-A1 AHK432ILY-1-A1 AHK432ILY-2-A1

* LIFE SUPPORT POLICY
AnalogicTech's PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYS­TEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF Advanced Analogic Technologies Inc. As used herein:

1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sus­tain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea­sonably expected to result in a significant injury to the user.

2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause
the failure of the life support device or system, or to affect its safety or effectiveness.

Bulk or Tape

and Reel

Tape and Reel

0.5% 1.0% 2.0%

AHK432IGY-.5-T1 AHK432IGY-1-T1 AHK432IGY-2-T1

Tolerance

6 432.2001.11.0.96

Pin Configuration

AHK432

Adjustable Low Voltage Shunt Regulator

3-lead SOT-23

(Top View)

Reference

Cathode

1

3

Anode

2

Package Information

TO-92 M

L

E

H

D

01(2X)

02(2X)

5-lead SOT-23

(Top View)

N/C

1

Anode

5

2

N/C

3

4

Cathode

e

A

Reference

Dim

Reference

Cathode

Millimeters Inches

Min Max Min Max

Anode

TO-92

(Top View)

1
2
3

A 2.40 2.60 0.094 0.102

G

F

A1 0.70 0.90 0.028 0.036

b 0.35 0.55 0.014 0.022
C 0.00 0.00 0.000 0.000

b

R2.00

A1

D 2.80 3.20 0.110 0.126
E 3.80 4.20 0.149 0.165
e 0.00 0.00 0.000 0.000
F 1.91 2.31 0.075 0.091
G 3.35 3.75 0.132 0.148

C

H 0.00 0.15 0.000 0.006
L 13.80 14.20 0.543 0.559

θ12° 2°
θ25° 5°

Note: PACKAGE OUTLINE EXCLUSIVE OF ANY
MOLD FLASHES AND BURR DIMENSION

432.2001.03.0.95 7

SOT-23-3

AHK432

Adjustable Low Voltage Shunt Regulator

A2

A2

D

S1

Dim

Millimeters Inches

Min Max Min Max

A .887 1.02 0.034 .040
A1 .013 0.10 0.0005 .004
A2 - - - -

E

H

b 0.37 0.51 0.015 0.020
C 0.085 0.180 0.003 0.007
D 2.80 3.04 0.110 0.120

S

e

E 1.20 1.40 0.047 0.055

e 1.78 2.05 0.070 0.080
H 2.10 2.64 0.083 0.104

L - 0.69 - 0.027
S 0.45 0.60 0.018 0.024

S1 0.89 1.03 0.035 0.040

A

1

A1

b

Q

C

L

SOT-23-5

e

S1

θ1 0° 8° 0° 8°

Note:

1. PACKAGE BODY SIZE EXCLUDE MOLD FLASH
PROTRUSIONS OR GATE BURRS.

2. TOLERANCE ±0.1000 mm (4mi) UNLESS OTHER­WISE SPECIFIED

3. COPLANARITY: 0.1000

4. DIMENSION L IS MEASURED IN GAGE PLANE

Dim

Millimeters Inches

Min Max Min Max

A 0.95 1.45 0.037 0.057

A1 0.05 0.15 0.002 0.006

H

E

A2 0.90 1.30 0.035 0.051

b 0.35 0.50 0.014 0.019

c 0.08 0.20 0.003 0.078
D 2.84 3.00 0.112 0.112
E 1.50 1.70 0.059 0.067

D

e 1.90 0.0748
H 2.60 3.00 0.102 0.118

L 0.35 0.55 .0137 .0216

A

A1

S

b

L

S 0.47 0.55 0.019 .0216

S1 .95 0.037

c

Θ 0° 10° 0° 10°

Advanced Analogic Technologies, Inc.

1250 Oakmead Parkway, Suite 310, Sunnyvale, CA 94086
Phone [phone]
Fax [phone]

8 432.2001.11.0.96