Analogic AHK432IGV-1-T1 Adjustable low voltage shunt regulator Datasheet

AHK432
Adjustable Low Voltage Shunt Regulator
General Description
Features
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
VREF (1.24V) to 20V, giving designers outstanding
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.
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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%.
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PowerManager
SmartSwitch™™
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. VREF deviation, from -40 to +105°C
Surface mount 3 or 5 pin SOT-23 or throughhole 3 pin TO-92 packages
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
Typical Application
IN
RL
OUT
R1
Adjustable regulator:
AHK432
R2
432.2001.11.0.96
OUT = VREF
R1 + R2
R2
1
Preliminary Information
Applications
AHK432
Adjustable Low Voltage Shunt Regulator
Absolute Maximum Ratings
Symbol
VZ
IZ
(TA=25°C unless otherwise noted)
Description
IREF
TJ
Cathode Voltage
Continuous Cathode Current
Reference Current
Operating Junction Temperature Range
ΘJA
Maximum Thermal Resistance
PD
Maximum Power Dissipation
TLEAD
TO-92
SOT-23-3, SOT-23-5
TO-92
SOT-23-3, SOT-23-5
Maximum Soldering Temperature (at Leads)
Value
Units
20
100
3
-40 to 150
160
410
780
300
260
V
mA
mA
°C
°C/W
mW
°C
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
(TJ=25°C unless otherwise noted)
AHK432 0.5%
Symbol
VREF
Description
Conditions
Reference
VZ=VREF
IZ=10mA
Voltage
(test circuit 1)
min
typ
AHK432 1.0%
max min
typ
AHK432 2.0%
Max min typ
max Units
TA=25°C 1.234 1.240 1.246 1.228 1.240 1.252 1.215 1.240 1.265
V
TA=-40
1.222
to +105°C
1.258 1.215
1.265 1.200
1.280
VDEV
VREF Temp
Deviation
TA=-40 to +105°C,
VZ=VREF, IZ=10mA
(test circuit 1)
10
25
10
25
10
25
mV
∆VREF/∆VZ
Ratio of
Change in VREF
to Change in
Cathode Voltage
IZ=10mA,
∆VZ=16V to VREF
(test circuit 2)
-1.0
-2.7
-1.0
-2.7
-1.0
-2.7
mV/V
IREF
Reference
Input Current
R1=10kΩ,
R2=∞ , IZ=10mA
(test circuit 2)
0.15
0.5
0.15
0.5
0.15
0.5
µA
IREF(DEV)
IREF Temp
Deviation
TA=-40 to +105°C
R1=10kΩ , R2=∞ ,
IZ=10mA
(test circuit 2)
0.1
0.4
0.1
0.4
0.1
0.4
µA
µA
Off State
VREF=0V
VZ=6V
0.04
0.1
0.04
0.1
0.04
0.1
Cathode Current
(test circuit 3)
VZ=16V
0.04
0.5
0.04
0.5
0.04
0.5
RZ
Dynamic
Output
Impedance
f<1kHz, VZ=VREF,
IZ=100mA to 100mA
(test circuit 1)
0.05
0.2
0.05
0.2
0.05
0.2
Ω
IZ(MIN)
Minimum
Operating
Current
VZ=VREF
(test circuit 1)
60
80
60
80
60
80
µA
IZ(OFF)
2
432.2001.11.0.96
AHK432
Adjustable Low Voltage Shunt Regulator
Test Circuits
Test Circuit 1
Test Circuit 2
OUT
IN
IZ
OUT
IN
OUT
IN
IZ
IREF
432.2001.11.0.96
Test Circuit 3
IREF
IZ(off)
3
AHK432
Adjustable Low Voltage Shunt Regulator
Typical Characteristics
(Unless otherwise noted, TA = 25°C, IZ = 10mA)
Cathode Current vs. Cathode Voltage
Cathode Current vs. Cathode Voltage
200
Cathode Current (µA)
Cathode Current (mA)
15
10
5
0
-5
-10
-15
150
100
50
0
-50
-100
-150
-200
-1
-0.5
0
0.5
1
1.5
-1
-0.5
0
Cathode Voltage ( V)
Reference Voltage vs. Temperature
Reference Curre nt (nA)
Reference Voltage (V )
1.5
180
IZ=10mA
1.248
1.244
1.24
1.236
1.232
-50
-25
0
25
50
75
100
125
160
IZ=10mA
R1=10kΩ
R2=Open
140
120
100
80
60
40
20
0
-50
-25
Junction Temperature (°C)
0
25
50
75
100
125
Junction Temperatur e (°C)
Ratio of ∆VREF / ∆VZ vs. Temperature
Cathode Current vs. Temperature
80
0
VZ=5V
VREF=0V
(Off-state)
70
60
IZ=10mA
dVZ=VREF to 16V
-100
Ratio (µV/V)
Cathode Current (nA)
1
Reference Current vs. Temperature
1.252
50
40
30
20
-200
-300
-400
-500
10
0
-600
-50
-25
0
25
50
75
Junction Temperature (°C)
4
0.5
Cathode Voltage (V)
100
125
-50
-25
0
25
50
75
100
125
Junction Temperature (°C)
432.2001.11.0.96
AHK432
Adjustable Low Voltage Shunt Regulator
(Unless otherwise noted, TA = 25°C, IZ = 10mA)
Impedance vs. Frequency
Cathode Impedance vs. Temperature
10
Impedance (Ω)
Normalized Impedance
16%
12%
8%
4%
1
0.1
0%
-4 %
-50
-25
0
25
50
75
100
0.01
1.E+01
125
1.E+02
1.E+03
1.E+04
1.E+05
VOUT
Gain (dB)
Gain and Phase vs. Frequency
120
180
100
150
80
120
60
90
40
60
20
30
0
-20
1.E+01
1.E+06
Frequency ( Hz )
Junction Temperature (°C)
VIN
169 Ω
13.7k
AHK432
5V
8.25k
0
1.E+02
1.E+03
1.E+04
1.E+05
-30
1.E+06
Test Circuit for Voltage
Gain and Phase
Frequency (Hz)
Stability Boundary
1k
100
IZ
Current (mA)
80
Stable
R1=10k
Stable
60
CL
AHK432
40
Unstable
R2
20
VREF=VZ
0
10.E+0
100.E+0
1.E+3
10.E+3
100.E+3
Load Capacitance (pF)
432.2001.11.0.96
1.E+6
10.E+6
Test Circuit for Stability
5
AHK432
Adjustable Low Voltage Shunt Regulator
Functional Block Diagram
Symbol Diagram
CATHODE
CATHODE
REF
REF
VREF=1.24V
ANODE
ANODE
Ordering Information
Package
Bulk or Tape
and Reel
SOT-23-3
SOT-23-5
Bulk
TO-92
SOT-23-3
Tape and Reel
SOT-23-5
TO-92
Ammo
Tolerance
0.5%
1.0%
2.0%
N/A
N/A
N/A
N/A
N/A
N/A
AHK432ILY-.5-B1
AHK432ILY-1-B1
AHK432ILY-2-B1
AHK432IGY-.5-T1
AHK432IGY-1-T1
AHK432IGY-2-T1
AHK432IGV-.5-T1
AHK432IGV-1-T1
AHK432IGV-2-T1
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.
6
432.2001.11.0.96
AHK432
Adjustable Low Voltage Shunt Regulator
Pin Configuration
5-lead SOT-23
(Top View)
3-lead SOT-23
(Top View)
Reference
1
3
Cathode
N/C
N/C
Cathode
Anode
2
1 5
2
3 4
TO-92
(Top View)
Anode
Reference 1
Anode 2
Cathode 3
Reference
Package Information
TO-92 M
L
A
e
F
G
E
H
b
D
01(2X)
02(2X)
432.2001.03.0.95
C
Dim
A1
R2.00
A
A1
b
C
D
E
e
F
G
H
L
θ1
θ2
Millimeters
Min
Max
2.40
2.60
0.70
0.90
0.35
0.55
0.00
0.00
2.80
3.20
3.80
4.20
0.00
0.00
1.91
2.31
3.35
3.75
0.00
0.15
13.80 14.20
2°
5°
Inches
Min
Max
0.094
0.102
0.028
0.036
0.014
0.022
0.000
0.000
0.110
0.126
0.149
0.165
0.000
0.000
0.075
0.091
0.132
0.148
0.000
0.006
0.543
0.559
2°
5°
Note: PACKAGE OUTLINE EXCLUSIVE OF ANY
MOLD FLASHES AND BURR DIMENSION
7
AHK432
Adjustable Low Voltage Shunt Regulator
SOT-23-3
D
Dim
S1
E
A
A1
A2
b
C
D
E
e
H
L
S
S1
θ1
H
e
S
A
A2
Q1
A1
L
SOT-23-5
e
Dim
S1
H
E
D
A
A2
A1
S
b
c
I
L
Inches
Min
Max
0.034
.040
0.0005
.004
0.015
0.020
0.003
0.007
0.110
0.120
0.047
0.055
0.070
0.080
0.083
0.104
0.027
0.018
0.024
0.035
0.040
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
C
b
Millimeters
Min
Max
.887
1.02
.013
0.10
0.37
0.51
0.085 0.180
2.80
3.04
1.20
1.40
1.78
2.05
2.10
2.64
0.69
0.45
0.60
0.89
1.03
0°
8°
A
A1
A2
b
c
D
E
e
H
L
S
S1
Θ
Millimeters
Min
Max
0.95
1.45
0.05
0.15
0.90
1.30
0.35
0.50
0.08
0.20
2.84
3.00
1.50
1.70
1.90
2.60
3.00
0.35
0.55
0.47
0.55
.95
0°
10°
Inches
Min
Max
0.037
0.057
0.002
0.006
0.035
0.051
0.014
0.019
0.003
0.078
0.112
0.112
0.059
0.067
0.0748
0.102
0.118
.0137
.0216
0.019
.0216
0.037
0°
10°
Advanced Analogic Technologies, Inc.
1250 Oakmead Parkway, Suite 310, Sunnyvale, CA 94086
Phone (408) 524-9684
Fax (408) 524-9689
8
432.2001.11.0.96
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