tea1733t NXP Semiconductors, tea1733t Datasheet - Page 11

• Manufacturer Part Number: tea1733t
• Description: Greenchip Smps Control Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 5.
T
the IC; unless otherwise specified.
TEA1733T_TEA1733LT_1
Objective data sheet
Symbol
I
V
Peak current control (pin CTRL)
V
R
I
Pulse width modulator
f
f
V
V
Overpower protection (pin OPTIMER)
V
I
Restart timer (pin OPTIMER)
V
I
Current sense (pin ISENSE)
V
V
O(PROTECT)
O(CTRL)
osc
mod
prot(OPTIMER)
restart(OPTIMER)
amb
max
f
V
clamp(PROTECT)
CTRL
start(red)f
prot(OPTIMER)
restart(OPTIMER)
sense(max)
th(sense)opp
int(CTRL)
mod
(zero)
ISENSE
= 25 C; V
/ t
Characteristics
CC
= 20 V; all voltages are measured with respect to ground (pin 6); currents are positive when flowing into
Parameter
output current on pin
PROTECT
clamp voltage on pin
PROTECT
voltage on pin CTRL
internal resistance on
pin CTRL
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
overpower protection
sense threshold voltage
slope compensation
voltage on pin ISENSE
…continued
Conditions
V
V
I
for minimum flyback peak
current
for maximum flyback peak
current
V
V
pin CTRL
pin CTRL
no overpower situation
overpower situation
low level
high level
charging OPTIMER
capacitor
discharging OPTIMER
capacitor
V
V
I(PROTECT)
V/ t = 50 mV/ s;
V/ t = 200 mV/ s;
VINSENSE
VINSENSE
CTRL
CTRL
VINSENSE
VINSENSE
Rev. 01 — 26 October 2009
= 1.4 V
= 3.7 V
= V
= 0.78 V
= 0.78 V
= V
= 200 A
high(PROTECT)
low(PROTECT)
TEA1733T; TEA1733LT
[1]
Min
87
3.5
1.5
3.4
5
62
210
68.5
1.5
1.25
2.4
100
0.8
4.1
0.48
0.50
370
17
34
0.7
0.28
12.2
127
0.1
3
Typ
107
4.1
1.8
3.9
7
66.5
280
72
1.8
1.55
2.5
150
1.2
4.5
0
0.51
0.53
400
25
GreenChip SMPS control IC
32
0.5
0.2
10.7
107
4
© NXP B.V. 2009. All rights reserved.
Max
127
4.7
2.1
4.3
9
71
350
79
2.1
1.85
2.6
200
1.6
4.9
0.1
0.54
0.56
430
33
30
0.3
0.12
9.2
87
5
Unit
V
V
V
k
mA
mA
kHz
Hz
kHz
V
V
V
V
V
V
V
mV
mV/ s
11 of 17
A
A
A
A
A
A