tea1733p NXP Semiconductors, tea1733p Datasheet - Page 13

• Manufacturer Part Number: tea1733p
• Description: Greenchip Smps Control Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 5.
T
the IC; unless otherwise specified.
TEA1733P
Product data sheet
Symbol
I
Pulse width modulator
f
f
Δf
δ
V
V
Overpower protection (pin OPTIMER)
V
I
Restart timer (pin OPTIMER)
V
I
Current sense (pin ISENSE)
V
V
ΔV
t
Overpower compensation (pin VINSENSE and pin ISENSE)
I
Soft start (pin ISENSE)
I
V
O(CTRL)
osc
mod
prot(OPTIMER)
restart(OPTIMER)
leb
opc(ISENSE)
start(soft)
amb
max
start(red)f
δ(zero)
prot(OPTIMER)
restart(OPTIMER)
sense(max)
th(sense)opp
start(soft)
mod
ISENSE
= 25
/Δt
°
C; V
Characteristics
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
Parameter
output current on pin
CTRL
oscillator frequency
modulation frequency
modulation frequency
variation
maximum duty cycle
frequency reduction start
voltage
zero duty cycle voltage
protection voltage on pin
OPTIMER
protection current on pin
OPTIMER
restart voltage on pin
OPTIMER
restart current on pin
OPTIMER
maximum sense voltage ΔV/Δt = 50 mV/μs;
overpower protection
sense threshold voltage
slope compensation
voltage on pin ISENSE
leading edge blanking
time
overpower
compensation current on
pin ISENSE
soft start current
soft start voltage
…continued
All information provided in this document is subject to legal disclaimers.
Conditions
V
V
pin CTRL
pin CTRL
no overpower situation
overpower situation
low level
high level
charging OPTIMER
capacitor
discharging OPTIMER
capacitor
V
ΔV/Δt = 200 mV/μs;
V
ΔV/Δt = 50 mV/μs
V
V
V
V
V
voltage
CTRL
CTRL
VINSENSE
VINSENSE
VINSENSE
sense(max)
VINSENSE
sense(max)
CTRL
Rev. 6 — 15 February 2011
= 1.4 V
= 3.7 V
= 4 V; enable
=3 V;
= 0.78 V
= 0.78 V
= 1 V;
> 400 mV
> 400 mV
Min
−0.7
−0.28
62
210
± 3
68.5
1.5
1.25
2.4
100
−12.2
0.8
4.1
−127
−0.1
0.48
0.50
370
17
250
-
-
−63
-
Typ
−0.5
−0.2
66.5
280
± 4
72
1.8
1.55
2.5
150
−10.7
1.2
4.5
−107
0
0.51
0.53
400
25
300
0.28
1.7
−55
V
GreenChip SMPS control IC
sense(max)
TEA1733P
© NXP B.V. 2011. All rights reserved.
Max
−0.3
−0.12
71
350
± 5
79
2.1
1.85
2.6
200
−9.2
1.6
4.9
−87
0.1
0.54
0.56
430
33
350
-
-
−47
-
Unit
mA
mA
kHz
Hz
kHz
%
V
V
V
μA
μA
V
V
μA
μA
V
V
mV
mV/μs
ns
μA
μA
μA
V
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