U6084B Datasheet, PDF (7/10 Pages) ATMEL Corporation – PWM Power Control with Automatic Duty-cycle Reduction

U6084B
Electrical Characteristics (Continued)
T_amb = -40 to +110°C, V_Batt = 9 to 16.5 V, (basic function is guaranteed between 6.0 V to 9.0 V) reference point ground,
unless otherwise specified (see Figure 1 on page 1). All other values refer to pin GND (pin 1).
Parameters
Voltage Doubler
Voltage
Oscillator frequency
Internal voltage limitation
Gate Output
Voltage
Current
Enable/Disable
Current
Duty Cycle Reduction
Z-voltage
Oscillator
Frequency
Test Conditions
Pin 13
Duty cycle 100%
I₁₃ = 5 mA
(whichever is lower)
Pin 14
Low level
V_Batt = 16.5 V, T_amb = 110°C,
R₃ = 150 Ω
High level, duty cycle 100%
V₁₄ = Low level
V₁₄ = High level, I₁₃ >  I₁₄
Pin 2
V₂ = 0 V
Pin 4
I₄ = 500 µA
Pin6
Symbol
Min.
Typ.
Max. Unit
V₁₃
2 V_S
f₁₃
280
400
520
kHz
V₁₃
26
27.5
30.0
V
V₁₃
(V_S+14) (V_S+15) (V_S+16)
V₁₄
0.35
0.70
0.95
1.5⁽¹⁾
V
V₁₄
V₁₃
I₁₄
1.0
mA
-1.0
I₂
-20
-40
-60
µA
V₄
6.9
7.4
8.0
V
f
10
2000
Hz
Threshold cycle
Upper
V₁₄
=
High,
α₁
=
V-----_{T---1--0---0-}
V_S
α₁
0.68
0.7
0.72
Lower
V₁₄
=
Low, α₂
=
V-----_{T---<--1---0---0}
V_S
α₂
0.65
0.67
0.69
α₃
=
V-----_T---L-
V_S
Oscillator current
Frequency tolerance
V_Batt = 12 V
C₄ open, C₂ = 470 nF,
duty cycle = 50%
Notes: 1. Reference point is battery ground
α₃
±I_osc
f
0.26
0.28
0.3
26
40
54
µA
6.0
9.9
13.5
Hz
7
4677B–AUTO–02/04