LTC3722-2_15 Datasheet, PDF (5/28 Pages) Linear Technology – Synchronous Dual Mode Phase Modulated Full Bridge Controllers

LTC3722-1/LTC3722-2
TYPICAL PERFORMANCE CHARACTERISTICS
Start-Up I_CC vs V_CC
200
T_A = 25°C
150
100
50
V_CC vs I_SHUNT
10.50
T_A = 25°C
10.25
10.00
9.75
Oscillator Frequency
vs Temperature
260
C_T = 270pF
250
240
0
0
2
4
6
8
10
V_CC (V)
372212 G01
Leading Edge Blanking Time
vs R_LEB
350
T_A = 25°C
300
250
200
150
100
50
0
0 10 20 30 40 50 60 70 80 90 100
R_LEB (k)
372212 G04
Error Amplifier Gain/Phase
100 ^{TA = 25°C}
80
60
40
20
0
–180
–270
–360
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
372212 G07
9.50
0
10
20
30
40
50
I_SHUNT (mA)
372212 G02
V_REF vs I_REF
5.05
T_A = 25°C
5.00
T_A = 85°C
4.95
4.90
T_A = –40°C
4.85
4.80
0
5 10 15 20 25 30 35 40
I_REF (mA)
372212 G05
Start-Up I_CC vs Temperature
190
180
170
160
150
140
130
120
110
100
–60 –30
0 30 60 90
TEMPERATURE (°C)
120 150
372212 G08
For more information www.linear.com/LTC3722
230
–50 –30 –10 10 30 50 70 90 110 130 150
TEMPERATURE (°C)
372212 G03
V_REF vs Temperature
5.01
5.00
4.99
4.98
4.97
4.96
–50 –30 –10 10 30 50 70 90 110 130 150
TEMPERATURE (°C)
372212 G06
Delay Hysteresis Current
vs Temperature
1.302
SBUS = 1.5V
1.300
1.298
1.296
1.294
1.292
1.290
1.288
1.286
1.284
1.282
1.280
–60 –30
0 30 60 90
TEMPERATURE (°C)
120 150
372212 G09
372212fb
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