TIL5942 Datasheet, PDF (7/19 Pages) Texas Instruments – CURRENT-MODE-PWM CONTROLLER WITH OPTOISOLATED VOLTAGE REFERENCE AND ERROR AMPLIFIER

TIL5942, TIL5942A
CURRENT-MODE-PWM CONTROLLER
WITH OPTOISOLATED VOLTAGE REFERENCE AND ERROR AMPLIFIER
SOES040 – OCTOBER 1997
PARAMETER MEASUREMENT INFORMATION
II(LED)
A
1
+
V VF
–
2
4
V
VO(COMP)
+
V
Vref
–
3
16
15
14
PWM
With
13
Photo- ¹²
V
Diode ₁₁
10
9
II(LED)
1
VI(LED)
R1 ₂
4
R2 ^Vref
3
16
15
14
PWM
With
13
Photo- ¹²
Diode ₁₁
10
9
Figure 2. V_ref, V_F , I_min Test Circuit
II(LED)
1
II(FB)
A2
4
V
R3
3
16
15
14
PWM
With
13
Photo- ¹²
Diode ₁₁
10
9
Figure 3. ∆V_ref /∆V_I(LED) Test Circuit
II(off)
A
1
VI(LED)
2
4
V
Vref
3
16
15
14
PWM
With
13
Photo- ¹²
Diode ₁₁
10
9
Figure 4. I_I(FB) Test Circuit
Figure 5. I_I(off) Test Circuit
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