TSM105

3/9

OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

Tamb = 25°C and Vcc = +5V (unless otherwise specified)

Symbol

Parameter

Value

Unit

Vcc

DC Supply Conditions

2.8 to 12

V

Symbol

Parameter

Test Condition

Min

Typ

Max

Unit

Total Current Consumption

Icc

Total Supply Current - not taking the

output sinking current into account

Tamb

0 < Tamb < 85°C

1.05

1.2

2mA

Voltage Control Loop

Gmv

Transconduction Gain (Vctrl). Sink

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

by 1mV, the sinking current at the output OUT will be increased by 3.5mA.

Tamb

0 < Tamb < 85°C

1

3.5

2.5

mA/mV

Vref

2. The internal Voltage Reference is set at 1.210V (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 temperaure.

Tamb

0 < Tamb < 85°C

1.198

1.186

1.21

1.222

1.234

V

Iibv

Input Bias Current (Vctrl)

Tamb

0 < Tamb < 85°C

50

100

nA

Current Control Loop

Gmi

Transconduction Gain (Ictrl). Sink

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

be increased by 7mA.

Tamb

0 < Tamb < 85°C

1.5

7

4

mA/mV

Vsense

4. The internal current sense threshold is set to -200mV. 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-conductance operational amplifier.

Iout = 2.5mA Tamb

0 < Tamb < 85°C

196

192

200

204

208

mV

Iibi

Current out of pin ICTRL at -200mV

Tamb

0 < Tamb < 85°C

25

50

µA

Output Stage

Vol

Low output voltage at 10 mA sinking

current

Tamb

200

mV

Ios

Output Short Circuit Current. Output to

Vcc. Sink Current Only

Tamb

0 < Tamb < 85°C

27

35

50

mA