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SEA01 датащи(PDF) 6 Page - STMicroelectronics

номер детали SEA01
подробное описание детали  Constant voltage and current controller with online digital trimming
PDF  24 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SEA01 датащи(HTML) 6 Page - STMicroelectronics

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Absolute maximum ratings
SEA01
6/24
DocID024452 Rev 1
Output stage
VOUT1-
2low
Low output level @ 2 mA
sink current
200
mV
(1)
400
Trimming functions
VClockLOW Clock input low level
0.8
V
VClockHI(6) Clock input high level
2
3.45
V
CClock
Clock input capacitance
5
pF
fClock
Clock frequency
100
KHz
VDataLOW
(6)
Data input low level
0.8
V
VDataHI
Data input high level
2
3.45
V
CData
Data input capacitance
5
pF
Vcczap
PROM zapping voltage
17
20
V
IZAP
PROM zapping current
Vcc= 19 V
50
90
mA
tZAP
PROM zapping time
Vcc= 19 V
34
45
ms
VrefV
Trimming range
Referred to 0% trimming
-3
3
%
ΔVrefV
Trimming step
0.2
%
VrefI
Trimming range
Referred to 0% trimming
-50
50
%
ΔVrefI
Trimming step
3.3
%
Temperature stability
ΔVrefV
ΔVrefI
Voltage reference deviation
over temperature range
-25 °C < Tamb < 105 °C
0.3%
1. Specification referred to -25 °C < Tamb < 105 °C.
2. With VOUT1 > 3 V, If the voltage on Vctrl (the inverting input of the amplifier) is higher than the non-inverting
input (VrefV), and it is increased by 1 mV, the sink current at the output Out1 will be increased by 19 mA.
3. The internal voltage reference is set to VrefV. 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
transconductance operational amplifier.
4. When the inverting input at Isense is greater than 30 mV, and the voltage is increased by 1mV, the sinking
current at the output Out2 will be increased by 22 mA (please take into account the internal current limit typ
28 mA).
5. The internal current sense threshold is triggered when the voltage on the Isense pin is VrefI. 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 transconductance operational amplifier. Please note that this value
can be trimmed with a resolution of 1 mV.
6. The Data and Clock pins are connected to an internal bus at 3.3 V.
Table 4. Electrical characteristics (continued)
(Tj = 25 °C,Vcc = 12 V; unless otherwise specified )
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit



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