Philips Semiconductors
Power plug for the universal mains
Preliminary specification
TEA1401T
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Pulse (maximum) frequency modulator
Rdischarge
Icharge(min)
Icharge(max)
Icharge(fix)
GtransferCI
GtransferCV
Vsw(high)
Vsw(low)
Vton(max)
∆fPFM
discharge resistance to ground
minimum charge current
maximum charge current
fixed charge current
transfer from pin CI to pin CPFM
transfer from pin CV to pin CPFM
high switching voltage level at
pin CPFM
low switching voltage level at
pin CPFM
maximum on-time ton(max) switching
voltage level at pin CPFM
frequency spread of the internal
oscillator; G--V---t-s-r-a-w--n-(-sh--f-i-eg--rh-C--)--I ; -G--V--t--rs-a-w--n--(s-h-f--ei-g-r-hC---)-V-
∆ton(max)
spread of ton(max); I-V-c---ht--oa--n-r-g(--m-e--(-a-f-ix-x-)-)
VCPFM = 1.0 V
0.3
VCV = VCI = 0 V
−
VCV = VCI = 4 V
−
active stroke
−
VCI = 2.1 to 3.1 V
−
VCV = 2.1 to 3.1 V
−
−
DC at pin CPFM
−
−
VCI = VCV = 2.1 to 3.1 V 93
VCI = VCV = 4 V;
19
VSOURCE < 1 V
0.6 0.9
2.5 −
130 −
25 −
−104 −
−104 −
1.0 −
kΩ
µA
µA
µA
µA/V
µA/V
V
0.17 −
V
0.54 −
V
104 115 µA/V2
22 25 V/mA
SOPS
Vdemag
demagnetization recognition voltage
level
−250 −130 −10 mV
Current regulation
Vi(pkc)
Vi(pkc)(slope)
Vpkc(offset)
VPEAK-I converter input voltage
VPEAK-I converter input voltage slope
VPEAK-I converter systematic offset
Itransfer(RI-CI)
Itransfer(GOUT-CI)
IPEAKcor
Ichain(CI)
Ictrl(error)
RI to CI current transfer
GOUT to CI current transfer
current through sense capacitor in
block ‘IPEAK correction’ (see Fig.1);
sunk by pin FOLDBACK
CI chain error current
current control total measured error
-d---V----S---dO----Ut---R---C----E- > 0.1 V/µs
IGOUT = 0
IRI = 0
under test conditions: in
lasting active stroke
0.6
0.1
−
−
−
7
−3.3
−5
−
1.4
−
1.0
−13 −
−0.99 −
0.17 −
10 13
−1.0 +1.3
−
+5
V
V/µs
mV
A/A
A/A
µA
µA
%
1997 Mar 07
10