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參數(shù)資料
| 型號： | TPS60230RGTT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.2 A SWITCHED CAPACITOR REGULATOR, 1250 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封裝： | 3 X 3 MM, GREEN, PLASTIC, QFN-16 |
| 文件頁數(shù)： | 16/20頁 |
| 文件大?。?/td> | 640K |
| 代理商： | TPS60230RGTT |
www.ti.com
D5
D4
D3
D2
D1
C1+
C1
C2+
C2
EN2
VOUT
ISET
GND
EN1
Control
RSET
VIN
Reference
0.47 mF
1 mF
Charge
Pump
Current
Sinks
1 mF
PGND
TYPICAL CHARACTERISTICS
Table of Graphs
TPS60230
SLVS516A – MAY 2004 – REVISED JUNE 2004
FUNCTIONAL BLOCK DIAGRAM
FIGURE
vs Input voltage (ILED = 25 mA, 15 mA, 10 mA per LED), EN2 = 0,
1
EN1 = 1, Show hysteresis (rising and falling VI), VLED = 3.1 V
vs Input voltage (ILED = 25 mA, 15 mA, 10 mA per LED), EN2 = 1,
2
η Efficiency
EN1 = 0, Show hysteresis (rising and falling VI), VLED = 3.1 V
vs Input voltage (ILED = 25 mA, 15 mA, 10 mA per LED),
3
EN2 = EN1 = 1, Show hysteresis (rising and falling VI), VLED = 3.1 V
IQ No load quiescent current
vs Input voltage (TA = –40°C, 25°C, 85°C) (measured with ID1 = 5 mA)
4
Maximum output current from charge pump stage vs Input voltage
5
fs
Switching frequency
vs Free-Air Temperature (TA = -40°C to 85°C, VI = 3.6 V)
6
vs Duty cycle on PWM (ILED max set to 20 mA)
7
LED current, ILED
For f = 32 kHz and f = 1 kHz, DC = 1% to 100%, VI = 3.6 V
VI and ID1 vs time on scope, Show LED current at D1 with
8
Line transient response
VI = 4.2 V to 3.6 V to 4.2 V with EN2 = EN1 = 11, 5x20 mA
Show PWM signal and current at D1 vs time on scope
9
f = 32 kHz, VI = 3.6 V, duty cycle = 50%, EN1 = EN2 = PWM
Dimming response
Show PWM signal and current at D1 vs time on scope
10
f = 1 kHz, VI = 3.6 V, duty cycle = 50%, EN1 = EN2 = PWM
Startup timing
VI = 3.6 V, 5x20 mA, EN1 = EN2 = 00 changed to EN2 = EN1 = 11
11
5
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相關(guān)代理商/技術(shù)參數(shù) |
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| TPS60231RGTR | 功能描述:電荷泵 3-Ch 75-mA Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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