TJ1051CD HTC [HTC Korea TAEJIN Technology Co.], TJ1051CD Datasheet - Page 3

• Manufacturer Part Number: TJ1051CD
• Description: CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER FOR ADATPTORS AND BATTERY CHARGERS
• Manufacturer: HTC [HTC Korea TAEJIN Technology Co.]

Jan. 2007-Rev 1.0
Tamb = 25
Total Current Consumption
Voltage Control Loop
Current Control Loop
Output Stage
1) If the voltage on Vctrl (the negative input of the amplifier) is higher than the positive amplifier input (Vref=1.210V),
2) The internal Voltage Reference is set at 1.210V (bandgap reference). The voltage control loop precision takes into
3) When the positive input at Ictrl is lower than - 200mV, and the voltage is decreased by 1mV, the sinking current at the
4) The internal current sense threshold is set to - 200mV. The current control loop precision takes into account
ELECTRICAL CHARACTERISTICS
Symbol
Vsense
CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER
FOR ADATPTORS AND BATTERY CHARGERS
Gmv
and it is increased by 1mV, the sinking current at the output OUT will be increased by 3.5mA.
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
output OUT will be increased by 7mA.
the cumulative effects of the internal voltage reference deviation as well as the input offset voltage of the trans-
conduction operational amplifier.
Vref
Gmi
room temperature.
Iibv
Icc
Vol
Iibi
Ios
Total Supply Current - not taking the
output sinking current into account
Transconduction Gain (Vctrl). Sink
Current Only
Voltage Control Loop Referenc
Transconduction Gain (Ictrl). Sink
Current Only
Current Control Loop Reference
Low output voltage at 10 mA sinking
Current
Output Short Circuit Current. Output to
Vcc. Sink Current Only
Input Bias Current (Vctrl)
Current out of pin Ictrl at - 200mV
℃
and Vcc = +5V (unless otherwise specified)
1)
3)
Parameter
2)
4)
3
Tamb
0 < Tamb < 85
Tamb
0 < Tamb < 85
Tamb
0 < Tamb < 85
Tamb
0 < Tamb < 85
Tamb
0 < Tamb < 85
Iout =2.5mA Tamb
0 < Tamb < 85
Tamb
0 < Tamb < 85
Tamb
0 < Tamb < 85
Tamb
0 < Tamb < 85
Test Condition
℃
℃
℃
℃
℃
℃
℃
℃
℃
1.198
1.186
Min
196
192
1.5
1
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
TJ1051
HTC
mA/mV
mA/mV
Unit
mA
mV
mV
mA
㎂
nA
V