TSM1051 Electrical characteristics
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2 Electrical characteristics
T
A
= 25 °C and V
CC
= +5 V (unless otherwise specified)
Table 6. Electrical characteristics
Symbol Parameter Test condition Min Typ Max Unit
Total current consumption
I
CC
Total supply current - not taking the
output sinking current into account
1.1 2
mA
0 < T
A
< 85 °C 1.2
Voltage control loop
Gmv
Transconduction gain (Vctrl). sink
current only
(1)
1. If the voltage on V
CTRL
(the negative input of the amplifier) is higher than the positive amplifier input(V
ref
=
1.210 V), and it is increased by 1mV, the sinking current at the output OUT will be increased by 3.5 mA.
1 3.5
mA/mV
0 < T
A
< 85 °C 2.5
V
ref
Voltage control loop reference
(2)
2. The internal Voltage Reference is set at 1.210 V (bandgap reference). The voltage control loop precision
takes into account the cumulative effects of the internal voltage reference deviation as well as the input
offset voltage of the trans-conductance operational amplifier. The internal Voltage Reference is fixed by
bandgap, and trimmed to 0.5 % accuracy at room temperature.
1.198 1.21 1.222
V
0 < T
A
< 85 °C 1.186 1.234
Iibv Input bias current (Vctrl)
50
nA
0 < T
A
< 85 °C 100
Current control loop
Gmi
Transconduction Gain (Ictrl). Sink
Current Only
(3)
3. When the positive input at I
CTRL
is lower than -200 mV, and the voltage is decreased by 1mV, the sinking
current at the output OUT will be increased by 7 mA.
1.5 7 mA/mV
V
SENSE
Current control loop reference
(4)
4. The internal current sense threshold is set to -200 mV. The current control loop precision takes into
account the cumulative effects of the internal voltage reference deviation as well as the input offset voltage
of the trans-conduction operational amplifier.
I
O
= 2.5 mA 196 200 204
mV
0 < T
A
< 85 °C
I
O
= 2.5 mA
192 208
Iibi Current out of pin ICTRL at -200 mV
25
µA
0 < T
A
< 85 °C 50
Output stage
V
OL
Low output voltage at 10 mA sinking
current
200 mV
I
OS
Output short circuit current. output to
vcc. sink current only
27 50
mA
0 < T
A
< 85 °C 35
Obsolete Product(s) - Obsolete Product(s)
