U6084B_05 Datasheet, PDF (7/11 Pages) ATMEL Corporation – PWM Power Control with Automatic Duty-cycle Reduction

U6084B
4. Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability
Parameters
Symbol
Value
Unit
Junction temperature
Ambient temperature range
Storage temperature range
T_j
150
°C
T_amb
–40 to +110
°C
T_stg
–55 to +125
°C
5. Thermal Resistance
Parameters
Symbol
Value
Unit
Junction ambient
R_thJA
120
K/W
6. Electrical Characteristics
T_amb = –40 to +110°C, V_Batt = 9V to 16.5V (basic function is guaranteed between 6.0V and 9.0V), reference point ground, unless
otherwise specified (Figure 1-1 on page 1). All other values refer to pin GND (pin 1).
Parameters
Test Conditions
Symbol
Min.
Typ.
Max. Unit
Current consumption
Supply voltage
Stabilized voltage
Battery undervoltage detection
Pin 16
Overvoltage detection, stage 1
I_S = 10 mA, pin 16
- On
- Off
I_S
V_Batt
V_S
V_Batt
6.8
mA
25
V
24.5
27.0
V
4.4
4.8
5.0
5.4
5.6
6.0
V
Battery Overvoltage Detection
Pin 2
Stage 1:
- On
- Off
V_Batt
18.3
20.0
21.7
16.7
18.5
20.3
V
Stage 2:
- On
- Off
V_Batt
25.5
28.5
32.5
19.5
23.0
26.5
V
Stabilized voltage
Short-circuit Protection
I_S = 30 mA, pin 16
Pin 12
V_Z
18.5
20.0
21.5
V
Short-circuit current limitation
Short-circuit detection
V_T1 = V_S – V₁₂
V_T2 = V_S – V₁₂
Delay Timer Short-circuit Detection Pin 11
V_T1
85
V_T2
75
V_T1 – V_T2
3
100
120
mV
90
105
mV
10
30
mV
Switched off threshold
Charge current
Discharge current
Capacitance current
Output Short-circuit Latch
V_T11 = V_S – V₁₁
I₅ = I_ch – I_dis
Pin 9
V_T11
I_ch
I_dis
I₅
9.5
9.8
10.1
V
23
µA
3
µA
13
20
27
mA
Saturation voltage
Voltage Doubler
I₉ = 100 µA
Pin 13
V_sat
150
350
mV
Voltage
Duty cycle 100%
Oscillator frequency
Note: 1. Reference point is battery ground
V₁₃
2 V_S
f₁₃
280
400
520
kHz
7
4677C–AUTO–09/05