Cirrus Logic CS1680 - Manual (Page 5)

CS1680
DS1055F1 5
Boost Gate Driver
Output Source Resistance
Z
BST(Source)
- 19.9 - 
Output Sink Resistance Z
BST(Sink)
- 10.5 - 
Rise Time C
L
= 0.25nF - 11 - ns
Fall Time C
L
= 0.25nF - 6 - ns
Boost Current Sense
Peak Control Threshold
V
BSTPK(th)
- 0.33 - V
Leading-edge Blanking t
BSTLEB
- 100 - ns
Delay to Output - - 100 ns
Boost Protection
Overcurrent Protection (BOCP)
V
BSTOCP(th)
- 1.05 - V
Overvoltage Protection (BOP) (Note 1) K
BOP
- 93.75 - 
Clamp Turn-on
Clamp Turn-off K
CLAMP(on)
K
CLAMP(off)
-
- 87.8
85.1 -
- 

Buck Zero-Current Detect
BUCKZCD Threshold
V
BUCKZCD(th)
- 200 - mV
BUCKZCD Blanking t
BUCKZCD
- 250 - ns
ZCD Sink Current (Note 8) I
BUCKZCD
-2 - - mA
BUCKAUX Upper Voltage I
BUCKZCD
= 1mA - V
DD
+0.6 - V
Buck Current Sense
Peak Control Threshold
V
BUCKPK(th)
- 0.525 - V
Leading-edge Blanking t
BUCKLEB
- 250 - ns
Delay to Output - - 100 ns
Buck Pulse Width Modulator
Minimum On Time
T1
BUCK(min)
- 0.55 - s
Maximum On Time
CS1680-00
CS1680-02 T1
BUCK(max)
-
- 12.8
25.6 -
- s
s
Minimum Switching Frequency - 625 - Hz
Maximum Switching Frequency - 200 - kHz
Buck Gate Driver
Output Source Resistance
Z
BUCK(Source)
- 12.7 - 
Output Sink Resistance Z
BUCK(Sink)
- 8.2 - 
Rise Time C
L
= 0.25nF - 7.0 - ns
Fall Time C
L
= 0.25nF - 4.5 - ns
Buck Protection
Overcurrent Protection (OCP)
V
BUCKOCP(th)
- 1.05 - V
External Overtemperature Protection (eOTP), Boost Stage Constant, Peak Current
Maximum Pull-up Current Source
I
CONNECT
- 80 - A
Conductance Accuracy (Note 9) - - ±5 
Conductance Offset (Note 9) - ±250 - nS
Current Source Voltage Threshold V
CONNECT(th)
- 1.25 - V
Parameter Condition Symbol Min Typ Max Unit