參數(shù)資料
型號： TPS40210QDGQRQ1
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10
封裝： GREEN, PLATSIC, MSOP-10
文件頁數(shù)： 23/41頁
文件大?。?/td> 999K
代理商： TPS40210QDGQRQ1
www.ti.com
SLVS861D – AUGUST 2008 – REVISED APRIL 2010
ELECTRICAL CHARACTERISTICS
TJ = –40°C to 125°C, VVDD= 12 Vdc, all parameters at zero power dissipation (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Voltage Reference
TJ = 25°C
693
700
707
COMP = FB,
TPS40210
4.5
≤ VVDD ≤ 52 V
–40°C
≤ TJ ≤ 125°C
686
700
714
VFB
Feedback voltage range
mV
TJ = 25°C
254
260
266
COMP = FB,
TPS40211
4.5
≤ VVDD ≤ 52 V
–40°C
≤ TJ ≤ 125°C
250
260
270
Input Supply
VVDD
Input voltage range
4.5
52
V
4.5
≤ VVDD ≤ 52 V, no switching, VDIS < 0.8
1.5
2.5
mA
IVDD
Operating current
2.5
≤ VDIS ≤ 7 V
10
20
mA
VVDD < VUVLO(on), VDIS < 0.8
530
mA
Undervoltage Lockout (UVLO)
VUVLO(on)
Turn on threshold voltage
4.00
4.25
4.50
V
VUVLO(hyst)
UVLO hysteresis
140
195
240
mV
Oscillator
Oscillator frequency range(1)
35
1000
fOSC
kHz
Oscillator frequency
RRC = 182 k, CRC = 330 pF
260
300
340
4.5
≤ VDD ≤ 52 V
–20
7
Frequency line regulation
%
7
≤ VDD ≤ 52 V
-10
7
VSLP
Slope compensation ramp
520
620
720
mV
PWM
VVDD = 12 V
(1)
275
400
tON(min)
Minimum pulse width
ns
VVDD = 30 V
90
200
tOFF(min)
Minimum off time
170
200
ns
VVLY
Valley voltage
1.2
V
Soft-Start
Offset voltage from SS pin to error
VSS(ofst)
1
V
amplifier input
RSS(chg)
Soft-start charge resistance
320
430
600
k
RSS(dchg)
Soft-start discharge resistance
840
1200
1600
k
Error Amplifier
GBWP
Unity gain bandwidth product(1)
1.5
3.0
MHz
AOL
Open loop gain(1)
60
80
dB
Input bias current (current out of FB
IIB(FB)
100
300
nA
pin)
ICOMP(src)
Output source current
VFB = 0.6 V, VCOMP = 1 V
100
250
mA
ICOMP(snk)
Output sink current
VFB = 1.2 V, VCOMP = 1 V
1.2
2.5
mA
Overcurrent Protection
Overcurrent detection threshold (at
VISNS(oc)
4.5
≤ VDD < 52 V, –40°C ≤ TJ ≤ 125°C
120
150
180
mV
ISNS pin)
DOC
Overcurrent duty cycle(1)
2
%
Overcurrent reset threshold voltage
VSS(rst)
100
150
350
mV
(at SS pin)
TBLNK
Leading edge blanking
75
ns
(1)
Specified by design
Copyright 2008–2010, Texas Instruments Incorporated
3
Product Folder Link(s): TPS40210-Q1 TPS40211-Q1
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