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參數(shù)資料
| 型號： | TPS65021RHARG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40 |
| 封裝： | 6 X 6 MM, GREEN, PLASTIC, MO-220/VJJD-2, QFN-40 |
| 文件頁數(shù)： | 45/47頁 |
| 文件大小： | 1180K |
| 代理商： | TPS65021RHARG4 |
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ELECTRICAL CHARACTERISTICS
SLVS613B – OCTOBER 2005 – REVISED JULY 2007
VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, TA = –40°C to 85°C, typical values are
at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDCDC2 STEP-DOWN CONVERTER
VI
Input voltage range, VINDCDC2
2.5
6
V
IO
Maximum output current
1000
mA
I(SD)
Shutdown supply current in VINDCDC2
DCDC2_EN = GND
0.1
1
μA
rDS(on)
P-channel MOSFET on-resistance
VINDCDC2 = V(GS) = 3.6 V
140
300
m
Ilkg
P-channel leakage current
VINDCDC2 = 6 V
2
μA
rDS(on)
N-channel MOSFET on-resistance
VINDCDC2 = V(GS) = 3.6 V
150
297
m
Ilkg
N-channel leakage current
V(DS) = 6 V
7
10
μA
ILIMF
Forward current limit (P- and N-channel)
2.5 V < VINDCDC2 < 6 V
1.4
1.55
1.7
A
fS
Oscillator frequency
1.3
1.5
1.7
MHz
VINDCDC2 = 2.5 V to 6 V;
1.8 V
–2%
2%
0 mA
≤ I
O ≤ 1 A
Fixed output voltage
FPWMDCDC2=0
VINDCDC2 = 2.8 V to 6 V;
2.5 V
–2%
2%
0 mA
≤ I
O ≤ 1 A
VINDCDC2 = 2.5 V to 6 V;
1.8 V
–2%
2%
0 mA
≤ I
O ≤ 1 A
Fixed output voltage
FPWMDCDC2=1
VINDCDC2 = 2.8 V to 6 V;
2.5 V
–1%
1%
0 mA
≤ I
O ≤ 1 A
Adjustable output voltage with resistor
VINDCDC2 = VDCDC2 +0.3 V (min 2.5 V)
–2%
2%
divider at DEFDCDC2 FPWMDCDC2=0
to 6 V; 0 mA
≤ I
O ≤ 1 A
Adjustable output voltage with resistor
VINDCDC2 = VDCDC2 +0.3 V (min 2.5 V)
–1%
1%
divider at DEFDCDC2; FPWMDCDC2=1
to 6 V; 0 mA
≤ I
O ≤ 1 A
VINDCDC2 = VDCDC2 + 0.3 V (min. 2.5 V)
Line Regulation
0
%/V
to 6 V; IO = 10 mA
Load Regulation
IO = 10 mA to 1 mA
0.25
%/A
VDCDC2 ramping from 5% to 95% of target
Soft start ramp time
750
μs
value
Internal resistance from L2 to GND
1
M
VDCDC2 discharge resistance
DCDC2 discharge =1
300
7
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