TSM1051 STMicroelectronics, TSM1051 Datasheet - Page 3

• Manufacturer Part Number: TSM1051
• Description: CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER FOR BATTERY CHARGERS AND ADAPTORS
• Manufacturer: STMicroelectronics

OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
Tamb = 25°C and Vcc = +5V (unless otherwise specified)
1. If the voltage on VCTRL (the negative input of the amplifier) is higher than the positive amplifier input (Vref=1.210V), and it is increased
2. The internal Voltage Reference is set at 1.210V (bandgap reference). The voltage control loop precision takes into account the cumulative
3. When the positive input at ICTRL is lower than -200mV, and the voltage is decreased by 1mV, the sinking current at the output OUT will
4. The internal current sense threshold is set to -200mV. The current control loop precision takes into account the cumulative effects of the
Total Current Consumption
Voltage Control Loop
Current Control Loop
Output Stage
Symbol
Symbol
Vsense
by 1mV, the sinking current at the output OUT will be increased by 3.5mA.
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.
be increased by 7mA.
internal voltage reference deviation as well as the input offset voltage of the trans-conduction operational amplifier.
Gmv
Gmi
Vcc
Vref
Iibv
Iibi
Vol
Ios
Icc
DC Supply Conditions
Total Supply Current - not taking the
output sinking current into account
Transconduction Gain (Vctrl). Sink
Current Only
Voltage Control Loop Reference
Input Bias Current (Vctrl)
Transconduction Gain (Ictrl). Sink
Current Only
Current Control Loop Reference
Current out of pin ICTRL at -200mV
Low output voltage at 10 mA sinking
current
Output Short Circuit Current. Output to
Vcc. Sink Current Only
1)
3)
Parameter
Parameter
2)
4)
Tamb
0 < Tamb < 85°C
Tamb
0 < Tamb < 85°C
Tamb
0 < Tamb < 85°C
Tamb
0 < Tamb < 85°C
Tamb
0 < Tamb < 85°C
Iout = 2.5mA Tamb
0 < Tamb < 85°C
Tamb
0 < Tamb < 85°C
Tamb
0 < Tamb < 85°C
Tamb
0 < Tamb < 85°C
Test Condition
1.198
1.186
Min
196
192
1.5
1
2.5 to 12
Value
1.21
Typ
100
200
200
1.1
1.2
3.5
2.5
50
25
50
27
35
7
1.222
1.234
Max
204
208
50
2
TSM1051
mA/mV
mA/mV
Unit
mA
mV
mV
mA
Unit
nA
µA
V
V
3/9