TPS40210-Q1, TPS40211-Q1
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
Voltage Reference
TEST CONDITIONS
MIN
TYP
MAX UNIT
TJ = 25°C
693
686
254
250
700
700
260
260
707
COMP = FB,
4.5 ≤ VVDD ≤ 52 V
TPS40210
TPS40211
–40°C ≤ TJ ≤ 125°C
TJ = 25°C
714
mV
266
VFB
Feedback voltage range
COMP = FB,
4.5 ≤ VVDD ≤ 52 V
–40°C ≤ TJ ≤ 125°C
270
Input Supply
VVDD Input voltage range
4.5
52
2.5
20
V
4.5 ≤ VVDD ≤ 52 V, no switching, VDIS < 0.8
2.5 ≤ VDIS ≤ 7 V
1.5
10
mA
mA
mA
IVDD
Operating current
VVDD < VUVLO(on), VDIS < 0.8
530
Undervoltage Lockout (UVLO)
VUVLO(on) Turn on threshold voltage
4.00
140
4.25
195
4.50
240
V
VUVLO(hyst) UVLO hysteresis
mV
Oscillator
Oscillator frequency range(1)
35
260
–20
-10
1000
340
7
fOSC
kHz
Oscillator frequency
RRC = 182 kΩ, CRC = 330 pF
4.5 ≤ VDD ≤ 52 V
300
620
Frequency line regulation
Slope compensation ramp
%
7 ≤ VDD ≤ 52 V
7
VSLP
520
720
mV
PWM
VVDD = 12 V(1)
VVDD = 30 V
275
90
400
200
200
tON(min)
Minimum pulse width
ns
tOFF(min)
VVLY
Minimum off time
Valley voltage
170
1.2
ns
V
Soft-Start
Offset voltage from SS pin to error
amplifier input
VSS(ofst)
1
V
RSS(chg)
Soft-start charge resistance
320
840
430
600
kΩ
kΩ
RSS(dchg)
Soft-start discharge resistance
1200
1600
Error Amplifier
GBWP
AOL
Unity gain bandwidth product(1)
Open loop gain(1)
1.5
60
3.0
80
MHz
dB
Input bias current (current out of FB
pin)
IIB(FB)
100
300
nA
ICOMP(src)
ICOMP(snk)
Output source current
Output sink current
VFB = 0.6 V, VCOMP = 1 V
VFB = 1.2 V, VCOMP = 1 V
100
1.2
250
2.5
mA
mA
Overcurrent Protection
Overcurrent detection threshold (at
VISNS(oc)
DOC
VSS(rst)
TBLNK
4.5 ≤ VDD < 52 V, –40°C ≤ TJ ≤ 125°C
120
100
150
180
2
mV
%
ISNS pin)
Overcurrent duty cycle(1)
Overcurrent reset threshold voltage
(at SS pin)
150
75
350
mV
ns
Leading edge blanking
(1) Specified by design
Copyright © 2008–2010, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Link(s): TPS40210-Q1 TPS40211-Q1
TI [ TEXAS INSTRUMENTS ]
