Power Management
A A
MICROELECTRONICS
GM432
1.24V ADJUSTABLE PRECISION SHUNT REGULATORS
ELECTRICAL CHARACTERISTICS (T = 25°C unless otherwise noted)
A
GM432A (0.5%)
GM432A (0.5%)
PARAMETER
CONDITION
= V , I = 10 mA, T = 25°C
MIN
TYP
MAX
UNIT
(1)
V
1.234
1.222
1.246
1.258
1.240
KA
ref
K
A
Reference input Voltage
V
V
ref
(1)
V
=V ,I =10 mA,T = 0 to +70°C
A
KA ref
K
(1)
V
ref
temp deviation
V
V
KA
= V , I = 10 mA
ref K
10
-1.0
0.15
0.1
25
mV
mV/V
mA
dev
DV
Ratio of change in V
ref
ref
I
K
= 10mA, DV = 16V to V
KA
- 2.7
ref
to change in V
DV
KA
KA
(2)
Reference input current
I
ref
I
K
= 10mA, R1 = 10KW, R2 =
0.5
(2)
Deviation of reference
input voltage over full
temperature range
I
= 10mA, R1 = 10KW, R2 =
K
I
mA
0.4
ref(dev)
T
= full range
A
Minimum operating
current
(1)
I
mA
V
KA
= V
20
80
K(min)
ref
(3)
V
V
= 6V, V = 0V
ref
0.125
0.150
KA
Off-state cathode
current
I
mA
K(off)
(3)
= 16V, V = 0V
ref
0.135
0.05
0.150
0.15
KA
(1)
Dynamic impedance
| Z
|
f 1kHz,V =V , I =100mA to 100mA
K
W
KA
KA ref
GM432B (1.0%)
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
(1)
V
V
= V , I = 10 mA, T = 25°C
K
1.252
1.258
1.228
1.215
1.240
KA
ref
A
Reference input Voltage
V
V
ref
(1)
=V ,I =10 mA,T = 0 to +70°C
A
KA ref
K
(1)
V
ref
temp deviation
V
V
KA
= V , I = 10 mA
ref K
10
25
mV
mV/V
mA
dev
DV
DV
Ratio of change in V
ref
ref
I
K
= 10mA, DV = 16V to V
KA
-1.0
- 2.7
ref
to change in V
KA
KA
(2)
Reference input current
I
ref
I = 10mA, R1 = 10KW, R2 =
K
0.15
0.5
(2)
Deviation of reference
input voltage over full
temperature range
I
= 10mA, R1 = 10KW, R2 =
K
I
mA
0.1
0.4
ref(dev)
T
= full range
A
Minimum operating
current
(1)
I
mA
V
KA
= V
20
80
K(min)
ref
(3)
V
V
= 6V, V = 0V
ref
0.125
0.135
0.150
0.150
KA
Off-state cathode
current
I
mA
K(off)
(3)
= 16V, V = 0V
ref
KA
(1)
Dynamic impedance
| Z
|
f 1kHz,V =V , I =100mA to 100mA
K
0.05
0.15
W
KA
KA ref
NOTES:
(1) See test circuit 1 on page 4.
(2) See test circuit 2 on page 4.
(3) See test circuit 3 on page 4.
4