U6084B Datasheet, PDF (5/8 Pages) ATMEL Corporation – PWM Power Control with Automatic Duty-cycle Reduction

U6084B
Parameters
Test Conditions / Pins Symbol Min.
Typ.
Max.
Unit
Battery overvoltage detection
Pin 2
Stage 1:
– on
– off
V_Batt
18.3
20.0
21.7
V
16.7
18.5
20.3
Stage 2:
– on
– off
V_Batt
25.5
28.5
32.5
V
19.5
23.0
26.5
Stabilized voltage
I_S = 30 mA
Pin 16
V_Z
18.5
20.0
21.5
V
Short-circuit protection
Pin 12
Short-circuit current limita- V_T1 = V_S – V₁₂
tion
V_T1
85
100
120
mV
Short-circuit detection
V_T2 = V_S – V₁₂
V_T2
75
V_T1 – V_T2
3
90
105
mV
10
30
mV
Delay timer short circuit detection
Pin 11
Switched off threshold
V_T11 = V_S – V₁₁
V_T11
9.5
Charge current
I_ch
Dicharge current
I_dis
Capacitance current
I₅ = I_ch – I_dis
I₅
13
Output short-circuit latch
Saturation voltage
m I₉ = 100 A
Pin 9
V_sat
Voltage doubler
Pin 13
9.8
10.1
V
23
mA
3
mA
20
27
mA
150
350
mV
Voltage
Duty cycle 100%
V₁₃
2 V_S
Oscillator frequency
f₁₃
280
400
520
kHz
Internal voltage limitation I₁₃ = 5 mA
V₁₃
26
27.5
30.0
V
(whichever is lower)
V₁₃
(V_S+14) (V_S+15) (V_S+16)
Gate output
Pin 14
Voltage
Low level
V₁₄
0.35
0.70
0.95
V
W ^{VBatt = 16.5 V,}
T_amb = 110 °C, R₃ = 150
1.5 *)
High level,
V₁₄
V₁₃
duty cycle 100%
Current
V₁₄ = Low level
I₁₄
1.0
mA
V₁₄ = High level, I₁₃ > | I₁₄ |
–1.0
Enable/ Disable
Current
Duty cycle reduction
Z-voltage
Oscillator
V₂ = 0 V
m I₄ = 500 A
Pin 2
I₂
Pin 4
V₄
–20
–40
–60
mA
6.9
7.4
8.0
V
Frequency
Threshold cycle
Upper
Lower
Oscillator current
Frequency tolerance
Pin6
f
10
2000
Hz
+ a + V₁₄
High, ₁
V_T100
V_S
+ a + V₁₄
Low, ₂
t ^VT 100
V_S
a + ^VTL
3
V_S
V_Batt = 12 V
a₁
a₂
a₃
I_osc
0.68
0.65
0.26
26
0.7
0.67
0.28
40
0.72
0.69
0.3
54
mA
C₄ open, C₂ = 470 nF,
duty cycle = 50%
f
6.0
9.9
13.5
Hz
*) Reference point is battery ground.
TELEFUNKEN Semiconductors
5 (8)
Rev. A1, 14-Feb-97