SE1051 SEAWARD [Seaward Electronics Inc.], SE1051 Datasheet - Page 2

• Manufacturer Part Number: SE1051
• Description: Constant Voltage and Constant Current Controller
• Manufacturer: SEAWARD [Seaward Electronics Inc.]

Electrical Characteristic
V
Symbol
Total Current Consumption
I
Voltage Control Loop
Gmv
V
I
Current Control Loop
Gmi
V
I
Output Stage
V
I
1. If the voltage on V
(V
2. The internal Voltage Reference is set at 1.210V. The internal Voltage Reference is fixed by bandgap, and
trimmed to 0.5% accuracy at room temperature.
3. When the positive input at I
the output OUT will be increased by 2.9mA.
4. The internal current sense threshold is set to -240mV. 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.
CC
IBV
IBI
OS
CC
REF
SENSE
OL
REF
Absolute Maximum Rating
= 5.0V, T
Revision 12/4/2008
=1.210V), and it is increased by 1mV, the sinking current at the output OUT will be increased by 2.4mA.
Symbol
T
T
V
V
θ
LEAD
T
STG
CC
JA
IN
J
A
Parameter
Total Supply Current - not taking the output sinking
current into account
Transconduction Gain (V
Voltage Control Loop Reference
Input Bias Current (V
Transconduction Gain (I
Current Control Loop Reference
Current out of pin I
Low output voltage at 10 mA sinking current
Output Short Circuit Current. Output to V
Current Only
= 25°C, unless otherwise specified.
DC Supply Voltage
Input Supply Voltage
Thermal Resistance Junction to Ambient
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 Sec)
Preliminary and all contents are subject to change without prior notice.
CTRL
© Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 2
CTRL
(the negative input of the amplifier) is higher than the positive amplifier input
CTRL
CTRL
is lower than -240mV, and the voltage is decreased by 1mV, the sinking current at
at -200mV
CTRL
)
CTRL
Parameter
). Sink Current Only
). Sink Current Only
4)
2)
CC
. Sink
3)
1)
Test Condition
0 < T
0 < T
0 < T
0 < T
0 < T
I
0 < T
0 < T
0 < T
0 < T
OUT
= 2.5mA
A
A
A
A
A
A
A
A
A
< 85°C
< 85°C
< 85°C
< 85°C
< 85°C
< 85°C
< 85°C
< 85°C
< 85°C
Maximum
-40 to 150
-0.3~ V
0 to 125
250
260
18
CC
Min
Typ
0.4
0.5
2.4
2.0
1.21
50
100
2.9
240
25
50
300
22
35
Units
°C/W
°C
°C
°C
V
V
Max
Unit
mA
mA/mV
V
nA
mA/mV
mV
μA
mV
mA